CN109175383B - Preparation process of solar cell aluminum alloy bracket - Google Patents
Preparation process of solar cell aluminum alloy bracket Download PDFInfo
- Publication number
- CN109175383B CN109175383B CN201810988184.5A CN201810988184A CN109175383B CN 109175383 B CN109175383 B CN 109175383B CN 201810988184 A CN201810988184 A CN 201810988184A CN 109175383 B CN109175383 B CN 109175383B
- Authority
- CN
- China
- Prior art keywords
- aluminum alloy
- carbon fiber
- section
- mold core
- temperature nitrogen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 203
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 121
- 239000004917 carbon fiber Substances 0.000 claims abstract description 121
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 119
- 239000011347 resin Substances 0.000 claims abstract description 119
- 229920005989 resin Polymers 0.000 claims abstract description 119
- 239000007788 liquid Substances 0.000 claims abstract description 83
- 238000005507 spraying Methods 0.000 claims abstract description 62
- 239000004744 fabric Substances 0.000 claims abstract description 57
- 238000001816 cooling Methods 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 20
- 230000008569 process Effects 0.000 claims abstract description 20
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 231
- 239000010410 layer Substances 0.000 claims description 118
- 229910052757 nitrogen Inorganic materials 0.000 claims description 100
- 239000007921 spray Substances 0.000 claims description 34
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 31
- 238000003723 Smelting Methods 0.000 claims description 10
- 230000007704 transition Effects 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000004026 adhesive bonding Methods 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000012792 core layer Substances 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 210000001364 upper extremity Anatomy 0.000 description 11
- 239000000463 material Substances 0.000 description 6
- 239000003292 glue Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 230000004927 fusion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000002633 protecting effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/08—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/115—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention provides a preparation process of a solar cell aluminum alloy bracket, which breaks through the process form of the traditional aluminum alloy bracket and firstly prepares a hollow resin bracket mold core with the same shape as the aluminum alloy bracket, wherein the hollow resin bracket mold core is internally provided with a communicated channel; then coating carbon fiber cloth on the outer surface of the hollow resin support mold core to prepare a carbon fiber resin support mold core; and finally, spraying molten aluminum alloy liquid outside the carbon fiber resin support mold core, cooling and solidifying to form an aluminum alloy outer layer, and combining the aluminum alloy outer layer with the carbon fiber cloth to prepare the aluminum alloy support. Compared with the prior art, the preparation process of the solar cell aluminum alloy bracket has higher strength, strength-weight ratio, obviously improved stability, greatly prolonged service life and strong practicability.
Description
Technical Field
The invention relates to the field of mechanical processes, in particular to a solar cell aluminum alloy support preparation process.
Background
The structure of a solar cell or a bracket of a water heater is well known, and most of the solar cell or the bracket is made of aluminum alloy due to excellent strength and strength-to-weight ratio of the aluminum alloy. For example, chinese patent CN201210456297.3 discloses an aluminum alloy solar cell support, which includes a triangular frame, where the triangular frame is composed of a mounting frame, a low bracket, a high bracket, and a horizontal connecting plate connecting the low bracket and the high bracket; the mounting frame is composed of a middle arm, side arms, a cross arm, connecting parts of the middle arm and the high bracket, and inclined columns, wherein the side arms are isolated by grooves on two sides of the middle arm, the cross arm is vertically formed at the position of the low bracket, and the inclined columns are respectively formed between the connecting parts of the middle arm and the high bracket and two corner ends of two symmetrical side arms. The low bracket is composed of a triangular front supporting fine plate protruding from one end of the mounting frame and triangular through holes symmetrically and concavely arranged on the triangular front supporting fine plate. The high bracket is composed of a triangular side plate which is formed after extending along the middle axis along the other end of the mounting frame, a supporting plate which is convexly extended along the obtuse angle end of the triangular side plate, and oblique columns which are symmetrically formed respectively on the supporting plate and the two corner ends of the other end of the mounting frame. And the triangular side plate is symmetrically provided with positioning members of the solar cell panel at the position close to the end edge of the mounting frame. The solar cell panels are symmetrically arranged on the mounting frame between the middle arm and the side arm. The triangular frame consists of a mounting frame, a low bracket, a high bracket and a horizontal connecting plate, wherein the low bracket and the high bracket are formed on the mounting frame; the low bracket consists of a triangular front supporting fine plate protruding from one end of the mounting frame and triangular through holes symmetrically and concavely arranged on the triangular front supporting fine plate; the high bracket is composed of a triangular side plate which is formed after extending along the other end of the mounting frame to the central axis, a supporting plate which is convexly extended along the obtuse angle end of the triangular side plate, and oblique columns which are symmetrically formed respectively on the supporting plate and the two corner ends of the other end of the mounting frame; the mounting frame consists of a middle arm, side arms, a cross arm, a connecting part of the middle arm and the high bracket and inclined columns, wherein the two sides of the middle arm are isolated by slotting; the triangular side plate is symmetrically provided with positioning members of the solar cell panel at the position close to the end edge of the mounting frame; the solar cell panels are symmetrically arranged on the mounting frame between the middle arm and the side arm.
A manufacturing method of an aluminum alloy solar cell bracket comprises the steps of cutting along a folding line according to a designed aluminum alloy plate folding mode; and fixedly connecting the cut aluminum alloy plates after the aluminum alloy plates are folded into the bracket. The process is characterized in that the fixed connection in the process is formed by screw connection or riveting.
The structure and the processing technology of the bracket are similar to those of other solar cells or water heater brackets in the market, and because the structure of the bracket is complex, all sections of rod monomers need to be manufactured firstly and then spliced, assembled and connected, the integral forming cannot be realized, the structural strength depends more on the strength of the connecting part, and particularly in the field of large-scale solar cell brackets, the overall strength, the stability, the service life and the like of the bracket are seriously influenced.
Accordingly, the present inventors have made extensive studies to solve the above problems and have made the present invention.
Disclosure of Invention
The invention aims to provide a preparation process of a solar cell aluminum alloy bracket, which has higher strength, strength-to-weight ratio, obviously improved stability, greatly prolonged service life and strong practicability.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation process of a solar cell aluminum alloy bracket comprises the following steps:
(1) preparing a hollow resin support mold core with the same shape as the aluminum alloy support, wherein a communicated channel is arranged in the hollow resin support mold core;
(2) coating carbon fiber cloth on the outer surface of the hollow resin support mold core to prepare a carbon fiber resin support mold core;
(3) and spraying molten aluminum alloy liquid outside the carbon fiber resin support mold core, cooling and solidifying to form an aluminum alloy outer layer, and combining the aluminum alloy outer layer and the carbon fiber cloth together to prepare the aluminum alloy support.
In the step (3), spraying an aluminum alloy outer layer on the carbon fiber resin support mold core through an aluminum alloy spraying furnace;
the hollow resin support mold core comprises two forward front support legs and two backward rear support legs;
the aluminum alloy spraying furnace comprises a seat groove, a furnace cover covered above the seat groove, four limiting columns arranged on the seat groove and extending into lower end holes of the front support leg and the rear support leg in a one-to-one correspondence manner, and a spraying device arranged on the furnace cover and used for spraying molten aluminum alloy liquid to the carbon fiber resin support mold core;
the seat groove comprises a groove wall which is positioned at the edge and is raised upwards, and a groove which is formed by the groove wall in a surrounding way; the groove wall comprises a front wall corresponding to the two front support legs and a rear wall corresponding to the two rear support legs; the upper surface of the groove wall is an inclined surface which is gradually inclined downwards from outside to inside;
the four limiting columns comprise two front columns which are arranged on the upper surface of the front wall and correspond to the two front supporting legs one by one, and two rear columns which are arranged on the upper surface of the rear wall and correspond to the two rear supporting legs one by one;
the front column comprises a front connecting seat and a front extending section, wherein the lower part of the front connecting seat is connected with the upper surface of the front wall, and the upper part of the front connecting seat extends into the lower end hole of the front support leg; the diameter of the front connecting seat is larger than that of the front extending section; the upper end of the front stretching-in section is provided with a front conical head which is tapered from bottom to top; the two front columns are respectively provided with a low-temperature nitrogen supply device for supplying low-temperature nitrogen and a low-temperature nitrogen supply pipe which is connected between the front columns and the low-temperature nitrogen supply device and penetrates through the front wall; the temperature of the low-temperature nitrogen is lower than 200 ℃;
the rear column comprises a rear connecting seat and a rear extending section, wherein the lower part of the rear connecting seat is connected with the upper surface of the rear wall, and the upper part of the rear extending section extends into the lower end hole of the rear leg; the diameter of the rear connecting seat is larger than that of the rear extending section; a rear conical head which is gradually thinned from bottom to top is formed at the upper end of the rear stretching-in section; the two rear columns are respectively provided with a low-temperature nitrogen discharge pipe penetrating through the rear wall;
the spraying device comprises a plurality of spray heads which are positioned in the furnace cover and spray the molten aluminum alloy liquid towards the carbon fiber resin support mold core, a plurality of first section supply pipes which penetrate through the furnace cover and supply the molten aluminum alloy liquid to the spray heads, a second section supply pipe which is positioned outside the furnace cover and supplies the molten aluminum alloy liquid to the first section supply pipe, a spiral conveying device which conveys the molten aluminum alloy liquid to the second section supply pipe, and an aluminum alloy melting furnace which supplies the molten aluminum alloy liquid to the spiral conveying device; the spiral conveying device comprises a conveying cylinder communicated with the aluminum alloy smelting furnace through a transition pipe, a spiral conveying rod arranged in the conveying cylinder and along the conveying cylinder, and a rotating motor for driving the spiral conveying rod to rotate; the conveying cylinder is provided with a liquid inlet end communicated with the aluminum alloy smelting furnace through a transition pipe and a liquid outlet end communicated with the second section of supply pipe, and the conveying cylinder gradually extends upwards from the liquid inlet end to the liquid outlet end;
the wall of the furnace is provided with a first through hole for the low-temperature nitrogen supply pipe and the low-temperature nitrogen discharge pipe to penetrate through, and the furnace cover is provided with a plurality of second through holes for the first section of supply pipe to penetrate through; the furnace cover is provided with an air inlet and an air outlet, and the air inlet is provided with a high-temperature nitrogen supply device for supplying high-temperature nitrogen; the temperature of the high-temperature nitrogen is higher than 660 ℃;
in the process of spraying the aluminum alloy outer layer on the carbon fiber resin support mold core, firstly opening a door of the furnace cover, placing the carbon fiber resin support mold core into the furnace cover, enabling the two front support legs to correspond to the two front columns one by one, enabling the two rear support legs to correspond to the two rear columns one by one, enabling the front stretching-in section to stretch into a lower end hole of the front support leg by virtue of the front conical head to limit the front support leg, and enabling the rear stretching-in section to stretch into a lower end hole of the rear support leg by virtue of the rear conical head to limit the rear support leg;
then closing a door of the furnace cover, controlling the high-temperature nitrogen supply device to introduce high-temperature nitrogen into the furnace cover through the air inlet by using a controller, and discharging air in the furnace cover by using the air outlet so as to fill the furnace cover with the high-temperature nitrogen;
then, introducing low-temperature nitrogen into a channel of the hollow resin support mold core through the two front columns by using the two low-temperature nitrogen supply devices, discharging the low-temperature nitrogen through the two low-temperature nitrogen discharge pipes to form continuous low-temperature nitrogen flow, cooling the hollow resin support mold core, the carbon fiber cloth and the molten aluminum alloy liquid sprayed on the carbon fiber resin support mold core, and controlling the pressure of the nitrogen supplied by the two low-temperature nitrogen supply devices to have pressure difference;
and then opening a valve of the transition pipe to enable an aluminum alloy smelting furnace to supply molten aluminum alloy liquid to the spiral conveying device, starting the rotary motor to drive the spiral conveying rod to rotate to convey the aluminum alloy liquid in the conveying cylinder upwards to a second section of supply pipe, then enabling the aluminum alloy liquid to enter the furnace cover through the first section of supply pipe and to be sprayed on the surface of the carbon fiber resin support mold core through the nozzles, cooling and solidifying the molten aluminum alloy liquid on the carbon fiber resin support mold core layer by layer to form an aluminum alloy outer layer, and enabling the aluminum alloy outer layer to be combined with the carbon fiber cloth to form the aluminum alloy support.
In the step (3), the front connecting seat comprises a front conductive section which is arranged at the upper part and is contacted with the carbon fiber cloth, and a front insulating section which is arranged at the lower part and is contacted with the upper surface of the front wall; the lower end of the front connecting seat is provided with a front extending connecting section extending into the first through hole; the front stretching-in connecting section comprises a front inner layer, a front conductive layer and a front insulating layer, wherein the front inner layer is positioned on the inner layer and connected with the front stretching-in section; the front insulating section and the front insulating layer are both made of insulating materials;
the rear connecting seat at least comprises a rear insulating section which is in contact with the upper surface of the rear wall; the lower end of the rear connecting seat is provided with a rear extending connecting section extending into the first through hole; the rear extending connection section at least comprises a rear insulation layer connected with the rear insulation section;
the first section of supply pipe comprises a spraying conductive layer and a spraying insulating layer, wherein the spraying conductive layer is arranged on the inner layer and connected with the spray head, and the spraying insulating layer is coated on the outer side of the spraying conductive layer; the spray head and the spray conducting layer are both made of conducting materials;
the front conductive layer is connected with the first electrode, and the jet conductive layer is connected with the second electrode; the polarity of the first electrode is opposite to that of the second electrode;
in the process of spraying the aluminum alloy outer layer on the carbon fiber resin support mold core, applying voltage to the front conductive layer by using the first electrode to enable the carbon fiber cloth belt to have a first type of charge, applying voltage to the spraying conductive layer by using the second electrode to enable the spraying head belt to have a second type of charge opposite to the first type of charge, and enabling the molten aluminum alloy liquid sprayed from the spraying head to have a second type of charge; after being sprayed to the carbon fiber resin support mold core, the molten aluminum alloy liquid is adsorbed on the carbon fiber cloth under the action of attraction of the first electric charge of the carbon fiber cloth, the molten aluminum alloy liquid on the carbon fiber resin support mold core is cooled and solidified layer by layer to form an aluminum alloy outer layer, and the solidified aluminum alloy outer layer can continue to carry the first electric charge and attract and adsorb subsequent molten aluminum alloy liquid until an aluminum alloy outer layer with a corresponding thickness is formed.
In the step (3), a conical inclined surface which is gradually tapered from bottom to top is formed at the upper end of the front conducting section.
In the step (3), the first section of supply pipe further comprises an inner spray pipe section penetrating between the front support leg and the rear support leg, and the inner spray pipe section is provided with a plurality of spray heads for spraying molten aluminum alloy liquid towards the carbon fiber resin support mold cores.
In the step (3), the temperature of the high-temperature nitrogen is 660-670 ℃; the temperature of the low temperature nitrogen is less than 100 ℃.
In the step (3), a nitrogen gas collecting device is provided in each of the two low-temperature nitrogen gas discharge pipes.
In the step (3), the nitrogen gas collecting device includes a first circulation pipeline communicated with the low-temperature nitrogen gas discharge pipe, a cooling device for cooling nitrogen gas, and a second circulation pipeline connected between the cooling device and the low-temperature nitrogen gas supply device.
In the step (1), each section of pipe fitting of the hollow resin support mold core is formed by adopting an extrusion molding process, and then the hollow resin support mold core is formed by connecting and assembling.
In the step (1), the pipe pieces of the hollow resin support mold core are connected and assembled in a gluing mode.
After the technical scheme is adopted, the preparation process of the solar cell aluminum alloy bracket breaks through the process form of the traditional aluminum alloy bracket, in the actual working process, the hollow resin bracket mold core with the same shape as the aluminum alloy bracket is firstly prepared, the hollow resin bracket mold core is internally provided with a communicated channel, and the communicated channel is used for introducing low-temperature nitrogen at the later stage and continuously circulating in the whole hollow resin bracket mold core to cool the hollow resin bracket mold core, carbon fiber cloth and molten aluminum alloy liquid sprayed on the carbon fiber resin bracket mold core; then coating the carbon fiber cloth on the outer surface of the hollow resin support mold core to prepare a carbon fiber resin support mold core, wherein the hollow resin support mold core is used as a carrier of the carbon fiber cloth to support and shape the carbon fiber cloth; and finally, spraying a molten aluminum alloy liquid outside the carbon fiber resin support mold core, cooling and solidifying to form an aluminum alloy outer layer, combining the aluminum alloy outer layer with the carbon fiber cloth to form an aluminum alloy support, wherein the aluminum alloy support is a product combining the aluminum alloy and the carbon fiber, the strength and the weight of the aluminum alloy support are further enhanced by utilizing the carbon fiber on the basis of the performance of the aluminum alloy, the aluminum alloy outer layer is of an integral structure, a connecting seam and the like are not formed, the integrity, the stress concentration resistance and the deformation resistance are stronger, and the strength and the stability of the whole aluminum alloy support are obviously improved. Compared with the prior art, the preparation process of the solar cell aluminum alloy bracket has higher strength, strength-weight ratio, obviously improved stability, greatly prolonged service life and strong practicability.
Drawings
FIG. 1 is a schematic side view of an aluminum alloy bracket;
FIG. 2 is a schematic front structural view of an aluminum alloy bracket;
FIG. 3 is a schematic view, partly in section, of the present invention;
FIG. 4 is a first partial schematic of the present invention;
FIG. 5 is a second partial structural view of the present invention;
FIG. 6 is a schematic cross-sectional view of an aluminum alloy bracket;
FIG. 7 is a schematic cross-sectional view of a first segment of supply tubing.
In the figure:
11-front support leg 12-rear support leg 13-hollow resin support mold core 14-carbon fiber cloth 15-aluminum alloy outer layer
21-seat groove 211-groove wall 2111-front wall 2112-rear wall 212-groove 22-furnace mantle 231-front column 2311-front connecting seat 23111-front conducting section 23112-front insulating section 2312-front extending section 23121-front conical head 232-rear column 2321-rear connecting seat 2322-rear extending section 23221-rear conical head 233-front extending connecting section 2331-front inner layer 2332-front conducting layer 2333-front insulating layer
241-nozzle 242-first section supply pipe 2421-spraying conductive layer 2422-spraying insulating layer 2423-inner spraying pipe section 243-second section supply pipe 244-spiral conveying device 2441-rotating motor 245-aluminum alloy smelting furnace
25-low temperature nitrogen supply pipe 26-low temperature nitrogen discharge pipe.
Detailed Description
In order to further explain the technical solution of the present invention, the following detailed description is given by way of specific examples.
The invention discloses a preparation process of a solar cell aluminum alloy bracket, which comprises the following steps as shown in figures 1-7:
(1) preparing a hollow resin support mold core 13 with the same shape as the aluminum alloy support, wherein the hollow resin support mold core 13 is internally provided with a communicated channel;
(2) coating carbon fiber cloth 14 on the outer surface of the hollow resin support mold core 13 to prepare a carbon fiber resin support mold core;
(3) and spraying molten aluminum alloy liquid outside the carbon fiber resin support mold core, cooling and solidifying to form an aluminum alloy outer layer 15, and combining the aluminum alloy outer layer 15 and the carbon fiber cloth 14 together to prepare the aluminum alloy support.
In the actual working process, firstly, a hollow resin support mold core 13 with the same shape as an aluminum alloy support is prepared, a communicated channel is arranged in the hollow resin support mold core 13, and the communicated channel is used for introducing low-temperature nitrogen in the later period and continuously circulating in the whole hollow resin support mold core 13 to cool the hollow resin support mold core 13, carbon fiber cloth 14 and molten aluminum alloy liquid sprayed on the carbon fiber resin support mold core; then, covering the carbon fiber cloth 14 on the outer surface of the hollow resin support mold core 13 to prepare a carbon fiber resin support mold core, wherein the hollow resin support mold core 13 is used as a carrier of the carbon fiber cloth 14 to support and shape the carbon fiber cloth 14; and finally, spraying a molten aluminum alloy liquid outside the carbon fiber resin support mold core, cooling and solidifying to form an aluminum alloy outer layer 15, combining the aluminum alloy outer layer 15 with the carbon fiber cloth 14 to form an aluminum alloy support, wherein the aluminum alloy support is a product formed by combining aluminum alloy and carbon fiber, on the basis of the performance of the aluminum alloy, the strength and the weight of the aluminum alloy support are further enhanced by utilizing the carbon fiber, the aluminum alloy outer layer 15 is of an integral structure, a connecting seam and the like are not formed, the integrity, the stress concentration resistance and the deformation resistance are stronger, and the strength and the stability of the whole aluminum alloy support are obviously improved.
Preferably, in the step (3), spraying an aluminum alloy outer layer 15 on the carbon fiber resin support mold core through an aluminum alloy spraying furnace;
preferably, the hollow resin carrier core 13 comprises two forward front legs 11, and two rearward rear legs 12; preferably, a reinforcing connecting beam is further connected between the two front legs 11, between the two rear legs 12, and between the front legs 11 and the rear legs 12, and the reinforcing connecting beam has a passage communicating with both the front legs 11 and the rear legs 12.
Preferably, the aluminum alloy spraying furnace comprises a seat groove 21, a furnace cover 22 covering the seat groove 21, four limiting columns arranged on the seat groove 21 and extending into lower end holes of the front supporting leg 11 and the rear supporting leg 12 in a one-to-one correspondence manner, and a spraying device arranged on the furnace cover 22 and used for spraying molten aluminum alloy liquid to the carbon fiber resin support mold core; preferably, if the front leg 11 is inclined from bottom to top, in order to facilitate the limiting pillar extending into the lower end hole of the front leg 11 for limiting, the lower end of the front leg 11 may be formed with a vertically arranged remainder section, which also has a channel connected thereto, and after the support is formed, the remainder section may be cut off. Preferably, in the step (3), the remnant material section at the lower end of the aluminum alloy bracket is cut to manufacture the finished aluminum alloy bracket.
Preferably, the seat groove 21 includes a groove wall 211 at the edge and protruding upward, and a groove 212 surrounded by the groove wall 211; the slot wall 211 includes front walls 2111 corresponding to the two front legs 11, and rear walls 2112 corresponding to the two rear legs 12; preferably, the upper surface of the slot wall 211 is a slope gradually inclined downwards from outside to inside; the inclined upper surface of the bath wall 211 facilitates the molten aluminum alloy liquid to be agglomerated into droplets in the bath wall 211 and the furnace mantle 22 and then directly flow into the groove 212 to be collected without being accumulated on the bath wall 211.
Preferably, the four retaining posts include two front posts 231 disposed on the upper surface of the front wall 2111 and corresponding to the two front legs 11 one to one, and two rear posts 232 disposed on the upper surface of the rear wall 2112 and corresponding to the two rear legs 12 one to one;
preferably, the front post 231 includes a front attachment base 2311 at a lower portion thereof that is attached to the upper surface of the front wall 2111, and a front protruding section 2312 at an upper portion thereof that protrudes into the lower end hole of the front leg 11; the diameter of the front connecting seat 2311 is larger than that of the front extending section 2312; the upper end of the front extension section 2312 is formed with a front conical head 23121 which is tapered from bottom to top; front cone 23121 and rear cone 23221 facilitate ease of insertion into the lower end bore of the carbon fiber resin carrier core. A low-temperature nitrogen gas supply device for supplying low-temperature nitrogen gas and a low-temperature nitrogen gas supply pipe 25 connected between the front pillars 231 and the low-temperature nitrogen gas supply device and penetrating through the front wall 2111 are provided to the two front pillars 231; the temperature of the low-temperature nitrogen is lower than 200 ℃; the low-temperature nitrogen below 200 ℃ has stronger stability, and can perform cooling protection on the hollow resin support mold core 13 and the carbon fiber cloth 14, so as to avoid the influence of the over-high temperature on the performance of the hollow resin support mold core 13 and the carbon fiber cloth 14, and particularly avoid the deformation of the hollow resin support mold core 13 due to melting;
preferably, the rear post 232 includes a rear attachment seat 2321 at a lower portion thereof that is attached to the upper surface of the rear wall 2112, and a rear access section 2322 at an upper portion thereof that extends into the lower end opening of the rear leg 12; the diameter of the rear connecting seat 2321 is larger than that of the rear extending section 2322; a rear conical head 23221 which is tapered from bottom to top is formed at the upper end of the rear extending section 2322; the two rear pillars 232 are respectively provided with a low-temperature nitrogen gas discharge pipe 26 penetrating the rear wall 2112; the low-temperature nitrogen discharge pipe 26 can discharge low-temperature nitrogen in the hollow resin support mold core 13, so that continuous low-temperature nitrogen flow is formed in the hollow resin support mold core 13, and the hollow resin support mold core 13 and the carbon fiber cloth 14 are effectively cooled and protected.
Preferably, the injection means includes a plurality of spray heads 241 for injecting the molten aluminum alloy liquid toward the carbon fiber resin carrier core in the furnace mantle 22, a plurality of first-stage supply pipes 242 for supplying the molten aluminum alloy liquid to the spray heads 241 through the furnace mantle 22, a second-stage supply pipe 243 for supplying the molten aluminum alloy liquid to the first-stage supply pipes 242 outside the furnace mantle 22, a screw conveyor 244 for conveying the molten aluminum alloy liquid to the second-stage supply pipe 243, and an aluminum alloy melting furnace 245 for supplying the molten aluminum alloy liquid to the screw conveyor 244; the screw conveyor 244 comprises a conveying cylinder communicated with the aluminum alloy smelting furnace 245 through a transition pipe, a screw conveying rod arranged in and along the conveying cylinder, and a rotating motor 2441 for driving the screw conveying rod to rotate; the conveying cylinder is provided with a liquid inlet end communicated with the aluminum alloy smelting furnace 245 through a transition pipe and a liquid outlet end communicated with the second section of supply pipe 243, and the conveying cylinder gradually extends upwards from the liquid inlet end to the liquid outlet end; the conveying force of the screw conveyor 244 is used as the pressure at which the spray head 241 sprays the molten aluminum alloy liquid, and the pressure variation is realized by adjusting the rotation speed of the rotating motor 2441.
Preferably, the tank wall 211 is formed with a first through-hole through which the low-temperature nitrogen gas supply pipe 25 and the low-temperature nitrogen gas discharge pipe 26 pass, and the furnace cover 22 is formed with a plurality of second through-holes through which the first stage supply pipe 242 passes; the furnace hood 22 is formed with an air inlet and an air outlet, and the air inlet is provided with a high-temperature nitrogen gas supply device for supplying high-temperature nitrogen gas; the temperature of the high-temperature nitrogen is higher than 660 ℃; the high-temperature nitrogen higher than 660 ℃ can firstly ensure that the molten aluminum alloy liquid cannot be solidified before the carbon fiber cloth 14 contacts because the high-temperature nitrogen is higher than the melting point of aluminum, so that the molten aluminum alloy liquid is condensed on the carbon fiber cloth 14 to be integrally formed, and secondly, the nitrogen is used as inert gas to protect the carbon fiber cloth 14, so that the carbon fibers in the carbon fiber cloth 14 are prevented from being oxidized. Preferably, the temperature of the high temperature nitrogen gas is less than 3000 ℃ in order to avoid affecting the performance of the carbon fiber cloth 14, and more preferably, the temperature of the high temperature nitrogen gas is less than 1500 ℃ in order to avoid affecting the strength of the carbon fiber. Preferably, the furnace mantle 22 is provided with a door for taking in and out the aluminum alloy support. Preferably, the aluminum alloy spraying furnace is also provided with a controller.
Preferably, in the process of spraying the aluminum alloy outer layer 15 on the carbon fiber resin support mold core, the door of the furnace cover 22 is opened, the carbon fiber resin support mold core is placed into the furnace cover 22, the two front support legs 11 correspond to the two front columns 231 one by one, the two rear support legs 12 correspond to the two rear columns 232 one by one, the front extension section 2312 extends into the lower end hole of the front support leg 11 by the front conical head 23121 to limit the front support leg 11, and the rear extension section 2322 extends into the lower end hole of the rear support leg 12 by the rear conical head 23221 to limit the rear support leg 12;
preferably, the door of the furnace cover 22 is then closed, the controller controls the high-temperature nitrogen supply device to introduce high-temperature nitrogen into the furnace cover 22 through the air inlet, and the air in the furnace cover 22 is exhausted through the air outlet, so that the furnace cover 22 is filled with the high-temperature nitrogen; preferably, the air inlet and the air outlet are provided with valves, and the air inlet and the air outlet are controlled through the valves. Preferably, the circulation of high-temperature nitrogen gas is maintained during the spraying of the molten aluminum alloy liquid, ensuring a constant temperature in the furnace mantle 22.
Preferably, then, two low-temperature nitrogen supply devices are used for introducing low-temperature nitrogen into the channel of the hollow resin support mold core 13 through the two front columns 231 and discharging the low-temperature nitrogen through the two low-temperature nitrogen discharge pipes 26 to form continuous low-temperature nitrogen flow, so as to cool the hollow resin support mold core 13, the carbon fiber cloth 14 and the molten aluminum alloy liquid sprayed on the carbon fiber resin support mold core, and the pressure of the nitrogen supplied by the two low-temperature nitrogen supply devices is controlled to have pressure difference; the pressure difference exists between the pressure of the nitrogen supplied by the two low-temperature nitrogen supply devices, so that the pressure difference exists between the two ends of each reinforced connecting beam, and further continuous low-temperature nitrogen flow is generated in the reinforced connecting beams, so that the reinforced connecting beams, the carbon fiber cloth 14 and the molten aluminum alloy liquid sprayed on the carbon fiber resin support mold core are effectively cooled, and the problems that the temperature is gradually increased due to the stagnation of the low-temperature nitrogen flow at the reinforced connecting beams and the temperature loses the cooling and protecting effects are avoided.
Preferably, a valve of the transition pipe is opened, so that the aluminum alloy melting furnace 245 supplies molten aluminum alloy liquid to the spiral conveying device 244, the rotary motor 2441 is started to drive the spiral conveying rod to rotate, the aluminum alloy liquid in the conveying cylinder is conveyed upwards to the second section of supply pipe 243, then enters the furnace cover 22 through the first section of supply pipe 242 and is sprayed on the surface of the carbon fiber resin support mold core through the spray heads 241, the molten aluminum alloy liquid on the carbon fiber resin support mold core is cooled and solidified layer by layer to form the aluminum alloy outer layer 15, and the aluminum alloy outer layer 15 and the carbon fiber cloth 14 are combined together to form the aluminum alloy support.
In the actual working process, in the process of spraying the aluminum alloy outer layer 15 on the carbon fiber resin support mold core, the door of the furnace cover 22 is opened, the carbon fiber resin support mold core is placed into the furnace cover 22, the two front support legs 11 correspond to the two front columns 231 one by one, the two rear support legs 12 correspond to the two rear columns 232 one by one, the front extension section 2312 extends into the lower end hole of the front support leg 11 by virtue of the front conical head 23121 to limit the front support leg 11, and the rear extension section 2322 extends into the lower end hole of the rear support leg 12 by virtue of the rear conical head 23221 to limit the rear support leg 12; then closing the door of the furnace cover 22, controlling a high-temperature nitrogen supply device to introduce high-temperature nitrogen into the furnace cover 22 through an air inlet by using a controller, and discharging air in the furnace cover 22 through an air outlet to ensure that the furnace cover 22 is filled with the high-temperature nitrogen; then, introducing low-temperature nitrogen into the channel of the hollow resin support mold core 13 through the two front columns 231 by using the two low-temperature nitrogen supply devices, and discharging the low-temperature nitrogen through the two low-temperature nitrogen discharge pipes 26 to form continuous low-temperature nitrogen flow, cooling the hollow resin support mold core 13, the carbon fiber cloth 14 and the molten aluminum alloy liquid sprayed on the carbon fiber resin support mold core, and controlling the pressure of the nitrogen supplied by the two low-temperature nitrogen supply devices to have pressure difference; then, a valve of the transition pipe is opened, so that the aluminum alloy smelting furnace 245 supplies molten aluminum alloy liquid to the spiral conveying device 244, the rotary motor 2441 is started to drive the spiral conveying rod to rotate, the aluminum alloy liquid in the conveying cylinder is conveyed upwards to the second section of supply pipe 243, then the aluminum alloy liquid enters the furnace cover 22 through the first section of supply pipe 242 and is sprayed on the surface of the carbon fiber resin support mold core through the spray heads 241, the molten aluminum alloy liquid on the carbon fiber resin support mold core is cooled and solidified layer by layer to form an aluminum alloy outer layer 15, and the aluminum alloy outer layer 15 and the carbon fiber cloth 14 are combined together to form the aluminum alloy support. Preferably, the low-temperature nitrogen supply device and the high-temperature nitrogen supply device both comprise a containing barrel for containing nitrogen and an air pump for providing nitrogen conveying power. Preferably, after the spraying of the molten aluminum alloy liquid is completed, the low-temperature nitrogen circulation is continuously kept for a certain time, the outer layer of the aluminum alloy is fully cooled and solidified, and then the aluminum alloy is taken out.
Preferably, in the step (2), the carbon fiber cloth 14 and the hollow resin support core 13 are connected together by gluing. Specifically, the resin glue which is made of the same material as the hollow resin support mold core 13 is used for bonding, so that the fusion of the glue and the hollow resin support mold core 13 is stronger, the strength is higher, but the strength of the aluminum alloy support mainly depends on the strength of the carbon fiber cloth 14 and the aluminum alloy outer layer 15.
Preferably, the hollow resin stent core 13 is preferably a polyimide, polytetrafluoroethylene, polyphenylene sulfide, polyether ether ketone or heat-resistant ABS material, because the melting point and the use temperature of each material are high, all being several hundred degrees celsius or higher, and the performance of each material is stable.
Preferably, in step (3), the front connection socket 2311 includes a front conductive section 23111 at an upper portion and in contact with the carbon fiber cloth 14, and a front insulating section 23112 at a lower portion and in contact with an upper surface of the front wall 2111; the lower end of the front connecting seat 2311 is provided with a front extending connecting section 233 extending into the first through hole; the front protrusion connection segment 233 includes a front inner layer 2331 internally connected to the front protrusion segment 2312, a front electrical conductive layer 2332 wrapped outside the front inner layer 2331 and connected to the front electrical conductive segment 23111, and a front insulating layer 2333 wrapped outside the front electrical conductive layer 2332 and connected to the front insulating segment 23112; the front conductive segment 23111 and the front conductive layer 2332 are both made of a conductive material, and the front insulating segment 23112 and the front insulating layer 2333 are both made of an insulating material; preferably, the rear connection holder 2321 includes at least a rear insulating section in contact with the upper surface of the rear wall 2112; the lower end of the rear connecting seat 2321 is provided with a rear extending connecting section extending into the first through hole; the rear extending connection section at least comprises a rear insulation layer connected with the rear insulation section; preferably, the first segment of the supply pipe 242 includes a spraying conductive layer 2421 connected with the spray head 241 at the inner layer, and a spraying insulating layer 2422 coated on the outer side of the spraying conductive layer 2421; the spray head 241 and the spray conductive layer 2421 are both made of conductive materials; preferably, the front conductive layer 2332 is connected to a first electrode and the jetted conductive layer 2421 is connected to a second electrode; the polarity of the first electrode is opposite to that of the second electrode; in the process of spraying the aluminum alloy outer layer 15 on the carbon fiber resin support mold core, a first electrode (such as a positive electrode) is utilized to apply voltage to the front conductive layer 2332, so that the carbon fiber cloth 14 is charged with a first charge (such as a positive charge), a second electrode (such as a negative electrode) is utilized to apply voltage to the spraying conductive layer 2421, so that the spray head 241 is charged with a second charge (such as a negative charge) opposite to the first charge, and molten aluminum alloy liquid sprayed from the spray head 241 is charged with the second charge; after the molten aluminum alloy liquid is sprayed to the carbon fiber resin support mold core, the molten aluminum alloy liquid is adsorbed on the carbon fiber cloth 14 under the action of attraction of the first electric charge of the carbon fiber cloth 14, the molten aluminum alloy liquid on the carbon fiber resin support mold core is cooled and solidified layer by layer to form an aluminum alloy outer layer 15, and the solidified aluminum alloy outer layer 15 can continuously carry the first electric charge and attract and adsorb subsequent molten aluminum alloy liquid until the aluminum alloy outer layer 15 with the corresponding thickness is formed. The process can ensure that the molten aluminum alloy liquid is uniformly and intensively sprayed towards the carbon fiber cloth 14, the spraying efficiency and precision can be obviously improved, and the uniform thickness of the aluminum alloy outer layer 15 is ensured.
Preferably, the front insulating section 23112, the front insulating layer 2333, the rear insulating section, the rear insulating layer and the sprayed insulating layer 2422 are high-temperature resistant flexible layer structures made of silicon carbide fibers, silicon nitride fibers or ceramic fiber cotton, and can be sealed in a flexible contact manner with the contacted parts.
To further facilitate the close fitting of the front conductive segment 23111 with the carbon fiber cloth 14, it is preferable that, in step (3), the upper end of the front conductive segment 23111 is formed with a conical slope tapered from bottom to top.
Preferably, in step (3), the first-stage supply pipe 242 further includes an inner nozzle section 2423 extending through the space between the front leg 11 and the rear leg 12, and the inner nozzle section 2423 is provided with a plurality of nozzles 241 for spraying the molten aluminum alloy liquid toward the carbon fiber resin carrier core. In the actual working process of the invention, the spray head 241 of the inner spray pipe section 2423 can spray molten aluminum alloy liquid to the area between the front support leg 11 and the rear support leg 12, and the spray head 241 at other positions is matched to carry out overall spraying on the carbon fiber resin support mold core, so that dead angles are avoided.
Preferably, in the step (3), the temperature of the high-temperature nitrogen is 660-670 ℃, and the high-temperature nitrogen at the temperature does not generate high-temperature damage to the carbon fiber cloth 14 on the basis of ensuring that the molten aluminum alloy liquid is not solidified before the carbon fiber cloth 14 contacts, so as to ensure the stable performance of the carbon fiber cloth 14; the temperature of the low-temperature nitrogen is lower than 100 ℃, more preferably lower than 30 ℃, and the low-temperature nitrogen at the temperature has low cost and stronger operability on the basis of cooling protection of the hollow resin support mold core 13 and the carbon fiber cloth 14.
In order to recycle the low-temperature nitrogen gas, reduce the cost and save resources, it is preferable that in step (3), two low-temperature nitrogen gas discharge pipes 26 are respectively provided with a nitrogen gas collecting device.
Preferably, in the step (3), the nitrogen gas collecting device includes a first circulation pipe communicated with the low-temperature nitrogen gas discharge pipe 26, a temperature reducing device for reducing the temperature of the nitrogen gas, and a second circulation pipe connected between the temperature reducing device and the low-temperature nitrogen gas supply device. In the actual working process, the temperature of the discharged low-temperature nitrogen rises due to heat absorption in the aluminum alloy spraying furnace, the nitrogen collecting device utilizes the first circulating pipeline to convey the discharged low-temperature nitrogen to the cooling device, the nitrogen is cooled again by the cooling device and then conveyed to the nitrogen supply device by the second circulating pipeline, and the nitrogen supply device supplies the low-temperature nitrogen again. The specific structure can be that the cooling device comprises a cooling pipeline for low-temperature nitrogen to pass through and a cooling mechanism for cooling the cooling pipeline; the cooling mechanism has the same refrigeration principle as an air conditioner or a refrigerator.
In order to realize the molding of the hollow resin support core 13, it is preferable that in step (1), the segments of the pipe of the hollow resin support core 13 are molded by an extrusion molding process, and then the hollow resin support core 13 is formed by connection and assembly.
Preferably, in step (1), the sections of the hollow resin stent core 13 are assembled by being joined by gluing. Specifically, the resin glue which is made of the same material as the hollow resin support mold core 13 is used for bonding, so that the fusion of the glue and the hollow resin support mold core 13 is stronger, the strength is higher, but the strength of the aluminum alloy support mainly depends on the strength of the carbon fiber cloth 14 and the aluminum alloy outer layer 15.
The product form of the present invention is not limited to the embodiments and examples shown in the present application, and any suitable changes or modifications of the similar ideas should be made without departing from the patent scope of the present invention.
Claims (10)
1. A preparation process of a solar cell aluminum alloy bracket is characterized by comprising the following steps:
(1) preparing a hollow resin support mold core with the same shape as the aluminum alloy support, wherein a communicated channel is arranged in the hollow resin support mold core;
(2) coating carbon fiber cloth on the outer surface of the hollow resin support mold core to prepare a carbon fiber resin support mold core;
(3) and spraying molten aluminum alloy liquid outside the carbon fiber resin support mold core, cooling and solidifying to form an aluminum alloy outer layer, and combining the aluminum alloy outer layer and the carbon fiber cloth together to prepare the aluminum alloy support.
2. The preparation process of the solar cell aluminum alloy bracket according to claim 1, characterized in that: in the step (3), spraying an aluminum alloy outer layer on the carbon fiber resin support mold core through an aluminum alloy spraying furnace;
the hollow resin support mold core comprises two forward front support legs and two backward rear support legs;
the aluminum alloy spraying furnace comprises a seat groove, a furnace cover covered above the seat groove, four limiting columns arranged on the seat groove and extending into lower end holes of the front support leg and the rear support leg in a one-to-one correspondence manner, and a spraying device arranged on the furnace cover and used for spraying molten aluminum alloy liquid to the carbon fiber resin support mold core;
the seat groove comprises a groove wall which is positioned at the edge and is raised upwards, and a groove which is formed by the groove wall in a surrounding way; the groove wall comprises a front wall corresponding to the two front support legs and a rear wall corresponding to the two rear support legs; the upper surface of the groove wall is an inclined surface which is gradually inclined downwards from outside to inside;
the four limiting columns comprise two front columns which are arranged on the upper surface of the front wall and correspond to the two front supporting legs one by one, and two rear columns which are arranged on the upper surface of the rear wall and correspond to the two rear supporting legs one by one;
the front column comprises a front connecting seat and a front extending section, wherein the lower part of the front connecting seat is connected with the upper surface of the front wall, and the upper part of the front connecting seat extends into the lower end hole of the front support leg; the diameter of the front connecting seat is larger than that of the front extending section; the upper end of the front stretching-in section is provided with a front conical head which is tapered from bottom to top; the two front columns are respectively provided with a low-temperature nitrogen supply device for supplying low-temperature nitrogen and a low-temperature nitrogen supply pipe which is connected between the front columns and the low-temperature nitrogen supply device and penetrates through the front wall; the temperature of the low-temperature nitrogen is lower than 200 ℃;
the rear column comprises a rear connecting seat and a rear extending section, wherein the lower part of the rear connecting seat is connected with the upper surface of the rear wall, and the upper part of the rear extending section extends into the lower end hole of the rear leg; the diameter of the rear connecting seat is larger than that of the rear extending section; a rear conical head which is gradually thinned from bottom to top is formed at the upper end of the rear stretching-in section; the two rear columns are respectively provided with a low-temperature nitrogen discharge pipe penetrating through the rear wall;
the spraying device comprises a plurality of spray heads which are positioned in the furnace cover and spray the molten aluminum alloy liquid towards the carbon fiber resin support mold core, a plurality of first section supply pipes which penetrate through the furnace cover and supply the molten aluminum alloy liquid to the spray heads, a second section supply pipe which is positioned outside the furnace cover and supplies the molten aluminum alloy liquid to the first section supply pipe, a spiral conveying device which conveys the molten aluminum alloy liquid to the second section supply pipe, and an aluminum alloy melting furnace which supplies the molten aluminum alloy liquid to the spiral conveying device; the spiral conveying device comprises a conveying cylinder communicated with the aluminum alloy smelting furnace through a transition pipe, a spiral conveying rod arranged in the conveying cylinder and along the conveying cylinder, and a rotating motor for driving the spiral conveying rod to rotate; the conveying cylinder is provided with a liquid inlet end communicated with the aluminum alloy smelting furnace through a transition pipe and a liquid outlet end communicated with the second section of supply pipe, and the conveying cylinder gradually extends upwards from the liquid inlet end to the liquid outlet end;
the wall of the furnace is provided with a first through hole for the low-temperature nitrogen supply pipe and the low-temperature nitrogen discharge pipe to penetrate through, and the furnace cover is provided with a plurality of second through holes for the first section of supply pipe to penetrate through; the furnace cover is provided with an air inlet and an air outlet, and the air inlet is provided with a high-temperature nitrogen supply device for supplying high-temperature nitrogen; the temperature of the high-temperature nitrogen is higher than 660 ℃;
in the process of spraying the aluminum alloy outer layer on the carbon fiber resin support mold core, firstly opening a door of the furnace cover, placing the carbon fiber resin support mold core into the furnace cover, enabling the two front support legs to correspond to the two front columns one by one, enabling the two rear support legs to correspond to the two rear columns one by one, enabling the front stretching-in section to stretch into a lower end hole of the front support leg by virtue of the front conical head to limit the front support leg, and enabling the rear stretching-in section to stretch into a lower end hole of the rear support leg by virtue of the rear conical head to limit the rear support leg;
then closing a door of the furnace cover, controlling the high-temperature nitrogen supply device to introduce high-temperature nitrogen into the furnace cover through the air inlet by using a controller, and discharging air in the furnace cover by using the air outlet so as to fill the furnace cover with the high-temperature nitrogen;
then, introducing low-temperature nitrogen into a channel of the hollow resin support mold core through the two front columns by using the two low-temperature nitrogen supply devices, discharging the low-temperature nitrogen through the two low-temperature nitrogen discharge pipes to form continuous low-temperature nitrogen flow, cooling the hollow resin support mold core, the carbon fiber cloth and the molten aluminum alloy liquid sprayed on the carbon fiber resin support mold core, and controlling the pressure of the nitrogen supplied by the two low-temperature nitrogen supply devices to have pressure difference;
and then opening a valve of the transition pipe to enable an aluminum alloy smelting furnace to supply molten aluminum alloy liquid to the spiral conveying device, starting the rotary motor to drive the spiral conveying rod to rotate to convey the aluminum alloy liquid in the conveying cylinder upwards to a second section of supply pipe, then enabling the aluminum alloy liquid to enter the furnace cover through the first section of supply pipe and to be sprayed on the surface of the carbon fiber resin support mold core through the spray heads, cooling and solidifying the molten aluminum alloy liquid on the carbon fiber resin support mold core layer by layer to form an aluminum alloy outer layer, and enabling the aluminum alloy outer layer to be combined with the carbon fiber cloth to form the aluminum alloy support.
3. The preparation process of the solar cell aluminum alloy bracket according to claim 2, characterized in that: in the step (3), the front connecting seat comprises a front conductive section which is arranged at the upper part and is contacted with the carbon fiber cloth, and a front insulating section which is arranged at the lower part and is contacted with the upper surface of the front wall; the lower end of the front connecting seat is provided with a front extending connecting section extending into the first through hole; the front stretching-in connecting section comprises a front inner layer, a front conductive layer and a front insulating layer, wherein the front inner layer is positioned on the inner layer and connected with the front stretching-in section; the front insulating section and the front insulating layer are both made of insulating materials;
the rear connecting seat at least comprises a rear insulating section which is in contact with the upper surface of the rear wall; the lower end of the rear connecting seat is provided with a rear extending connecting section extending into the first through hole; the rear extending connection section at least comprises a rear insulation layer connected with the rear insulation section;
the first section of supply pipe comprises a spraying conductive layer and a spraying insulating layer, wherein the spraying conductive layer is arranged on the inner layer and connected with the spray head, and the spraying insulating layer is coated on the outer side of the spraying conductive layer; the spray head and the spray conducting layer are both made of conducting materials;
the front conductive layer is connected with the first electrode, and the jet conductive layer is connected with the second electrode; the polarity of the first electrode is opposite to that of the second electrode;
in the process of spraying the aluminum alloy outer layer on the carbon fiber resin support mold core, applying voltage to the front conductive layer by using the first electrode to enable the carbon fiber cloth belt to have a first type of charge, applying voltage to the spraying conductive layer by using the second electrode to enable the spraying head belt to have a second type of charge opposite to the first type of charge, and enabling the molten aluminum alloy liquid sprayed from the spraying head to have a second type of charge; after being sprayed to the carbon fiber resin support mold core, the molten aluminum alloy liquid is adsorbed on the carbon fiber cloth under the action of attraction of the first electric charge of the carbon fiber cloth, the molten aluminum alloy liquid on the carbon fiber resin support mold core is cooled and solidified layer by layer to form an aluminum alloy outer layer, and the solidified aluminum alloy outer layer can continue to carry the first electric charge and attract and adsorb subsequent molten aluminum alloy liquid until an aluminum alloy outer layer with a corresponding thickness is formed.
4. The preparation process of the solar cell aluminum alloy bracket according to claim 3, characterized in that: in the step (3), a conical inclined surface which is gradually tapered from bottom to top is formed at the upper end of the front conducting section.
5. The preparation process of the solar cell aluminum alloy bracket according to claim 2, characterized in that: in the step (3), the first section of supply pipe further comprises an inner spray pipe section penetrating between the front support leg and the rear support leg, and the inner spray pipe section is provided with a plurality of spray heads for spraying molten aluminum alloy liquid towards the carbon fiber resin support mold cores.
6. The preparation process of the solar cell aluminum alloy bracket according to claim 5, characterized in that: in the step (3), the temperature of the high-temperature nitrogen is 660-670 ℃; the temperature of the low temperature nitrogen is less than 100 ℃.
7. The preparation process of the solar cell aluminum alloy bracket according to claim 6, characterized in that: in the step (3), a nitrogen gas collecting device is provided in each of the two low-temperature nitrogen gas discharge pipes.
8. The preparation process of the solar cell aluminum alloy bracket according to claim 7, characterized in that: in the step (3), the nitrogen gas collecting device includes a first circulation pipeline communicated with the low-temperature nitrogen gas discharge pipe, a cooling device for cooling nitrogen gas, and a second circulation pipeline connected between the cooling device and the low-temperature nitrogen gas supply device.
9. The preparation process of the solar cell aluminum alloy bracket according to claim 8, characterized in that: in the step (1), each section of pipe fitting of the hollow resin support mold core is formed by adopting an extrusion molding process, and then the hollow resin support mold core is formed by connecting and assembling.
10. The preparation process of the solar cell aluminum alloy bracket according to claim 9, characterized in that: in the step (1), the pipe pieces of the hollow resin support mold core are connected and assembled in a gluing mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810988184.5A CN109175383B (en) | 2018-08-28 | 2018-08-28 | Preparation process of solar cell aluminum alloy bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810988184.5A CN109175383B (en) | 2018-08-28 | 2018-08-28 | Preparation process of solar cell aluminum alloy bracket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109175383A CN109175383A (en) | 2019-01-11 |
| CN109175383B true CN109175383B (en) | 2020-10-23 |
Family
ID=64916618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810988184.5A Active CN109175383B (en) | 2018-08-28 | 2018-08-28 | Preparation process of solar cell aluminum alloy bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109175383B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045236A (en) * | 1989-02-28 | 1990-09-12 | 王迪超 | The production method of aluminium alloy compound plate |
| CN1097041A (en) * | 1993-07-02 | 1995-01-04 | 北京市西城区新开通用试验厂 | The blade of duck-web type wind-driven device |
| CN1549287A (en) * | 2003-05-08 | 2004-11-24 | 北京集星世纪科技有限公司 | Active carbon fibre cloth/sprayed aluminium composite polar plate double-electric layer capacitor and producing method thereof |
| CN102945870A (en) * | 2012-11-14 | 2013-02-27 | 庆毅 | Aluminum alloy solar cell bracket and manufacturing method thereof |
| CN103938810A (en) * | 2014-03-22 | 2014-07-23 | 烟台斯坦普精工建设有限公司 | Photovoltaic sun-shading system and manufacturing method thereof |
| CN104517673A (en) * | 2013-10-08 | 2015-04-15 | 国家电网公司 | Carbon fiber composite core wire and production method |
| EP2990714A1 (en) * | 2013-04-26 | 2016-03-02 | JFE Steel Corporation | Accumulator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9774033B2 (en) * | 2015-03-27 | 2017-09-26 | Nanotek Instruments, Inc. | Process for producing silicon nanowires directly from silicon particles |
-
2018
- 2018-08-28 CN CN201810988184.5A patent/CN109175383B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045236A (en) * | 1989-02-28 | 1990-09-12 | 王迪超 | The production method of aluminium alloy compound plate |
| CN1097041A (en) * | 1993-07-02 | 1995-01-04 | 北京市西城区新开通用试验厂 | The blade of duck-web type wind-driven device |
| CN1549287A (en) * | 2003-05-08 | 2004-11-24 | 北京集星世纪科技有限公司 | Active carbon fibre cloth/sprayed aluminium composite polar plate double-electric layer capacitor and producing method thereof |
| CN102945870A (en) * | 2012-11-14 | 2013-02-27 | 庆毅 | Aluminum alloy solar cell bracket and manufacturing method thereof |
| EP2990714A1 (en) * | 2013-04-26 | 2016-03-02 | JFE Steel Corporation | Accumulator |
| CN104517673A (en) * | 2013-10-08 | 2015-04-15 | 国家电网公司 | Carbon fiber composite core wire and production method |
| CN103938810A (en) * | 2014-03-22 | 2014-07-23 | 烟台斯坦普精工建设有限公司 | Photovoltaic sun-shading system and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109175383A (en) | 2019-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109175383B (en) | Preparation process of solar cell aluminum alloy bracket | |
| CN207552161U (en) | Electrode block puopulsion equipment and electric smelting glass furnace | |
| CN111312627A (en) | Method for improving capability of nitrogen gas to remove water molecules for wafer drying | |
| CN117772496A (en) | Spraying device and spraying process of pressure equalizing cover | |
| CN213000666U (en) | Spraying device is used in rotational moulding mould processing | |
| CN111312580B (en) | Micro-amplitude vibration method for high aspect ratio graphic wafer | |
| CN205944129U (en) | Bridging device's scaling powder coating device | |
| CN109881226B (en) | Device for quickly preparing high-conductivity microcircuit by uniform droplet printing and electroplating | |
| CN101956154A (en) | Ultra-low pressure plasma spraying equipment | |
| CN106521393B (en) | A kind of coating production and device based on spark discharge | |
| CN218796844U (en) | Battery steel casing inner wall graphite spraying device | |
| CN105171174B (en) | A kind of wiring board direct inserting device automatic soldering method | |
| CN207137913U (en) | One kind exempts from spraying plating PBT production equipments | |
| CN110445081A (en) | A kind of hydroenergy storage station capital construction phase electricity consumption transmission line icing intelligence cancellation element | |
| CN212418464U (en) | Spraying device for copper rod and online spraying system | |
| CN220246228U (en) | High-temperature wear-resistant electric arc spraying device | |
| CN208562555U (en) | A kind of electroplanting device with jet anode | |
| CN111408827A (en) | Integrated efficient cooling deep fusion welding gun | |
| CN2406766Y (en) | Strand copper wire welder | |
| CN213133715U (en) | Paint vehicle spraying device is used in photo holder frame production | |
| CN113737255B (en) | Electrode preparation system by electrochemical method | |
| CN206368194U (en) | Coating preparation facilities based on spark discharge | |
| CN214579615U (en) | Electric hot melting connecting device for steel wire mesh reinforced corrugated pipe | |
| CN218210791U (en) | Automatic coal powder spraying device of reduction furnace | |
| CN213943630U (en) | Enameled wire hot wax atomizing spraying device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |