CN101920276A - Tangential continuous extruder and process for producing aluminum clad copper tube by using same - Google Patents
Tangential continuous extruder and process for producing aluminum clad copper tube by using same Download PDFInfo
- Publication number
- CN101920276A CN101920276A CN 201010270307 CN201010270307A CN101920276A CN 101920276 A CN101920276 A CN 101920276A CN 201010270307 CN201010270307 CN 201010270307 CN 201010270307 A CN201010270307 A CN 201010270307A CN 101920276 A CN101920276 A CN 101920276A
- Authority
- CN
- China
- Prior art keywords
- copper pipe
- continuous extruder
- cladding
- die
- copper
- 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.)
- Granted
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 239000010949 copper Substances 0.000 title claims abstract description 88
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 88
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 45
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title abstract description 5
- 238000005253 cladding Methods 0.000 claims abstract description 52
- 238000001125 extrusion Methods 0.000 claims abstract description 21
- 239000004411 aluminium Substances 0.000 claims description 30
- 239000000463 material Substances 0.000 claims description 15
- 229910045601 alloy Inorganic materials 0.000 claims description 11
- 239000000956 alloy Substances 0.000 claims description 11
- 238000005516 engineering process Methods 0.000 claims description 9
- 239000011261 inert gas Substances 0.000 claims description 9
- 229910000570 Cupronickel Inorganic materials 0.000 claims description 8
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 claims description 8
- 230000014759 maintenance of location Effects 0.000 claims description 8
- 150000001879 copper Chemical class 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000010924 continuous production Methods 0.000 abstract description 2
- 210000000078 claw Anatomy 0.000 abstract 3
- 235000010210 aluminium Nutrition 0.000 description 32
- 229910001369 Brass Inorganic materials 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 239000010951 brass Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 244000227633 Ocotea pretiosa Species 0.000 description 1
- 235000004263 Ocotea pretiosa Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Extrusion Of Metal (AREA)
- Metal Extraction Processes (AREA)
Abstract
The invention discloses a tangential continuous extruder and a process for producing an aluminum clad copper tube by using the same. The tangential continuous extruder comprises a shoe seat and an extrusion die arranged on the shoe seat, wherein the extrusion die comprises a die seat and a die core; an aluminum inlet is reserved on the die seat; the die core is positioned in the die seat; the die core comprises a shunt with shunt claws, a guide tube, a cladding die and an axial stop bolt; the shunt is fixed in the die seat, and axial direction of the shut claws of the shunt corresponds to the aluminum inlet; the cladding die is supported against the shunt claws of the shut through the axial stop bolt; the guide tube is positioned in the shunt, and has an axial distance with the cladding die. The process is to continuously produce the aluminum clad copper tube by using the extruder. The extruder and the process solve all the problems existing in rolling the aluminum clad copper tube in the prior art, and improve the quality of the aluminum clad copper tube to ensure that aluminum is cladded more uniformly and firmly, types of the aluminum clad copper tube are correspondingly increased, the application range is wider, continuous production saves raw materials, and cost is reduced.
Description
Technical field
The present invention relates to a kind of tangential continuous extruder and produce aluminum-cladding copper pipe technology.
Background technology
Tangential continuous extruder comprises squeegee roller, boots seat and is installed in mould on the boots seat, and at present tangential continuous extruder can only be used for producing the aluminum-clad steel wire that is used for carrying cable or the sheath on coaxial cable or cable and the optical fiber.
The aluminum-cladding copper pipe material is a kind of tubing that is used for air-condition heat exchanger and some heat exchangers, this tubing can solve copper pipe and aluminium in the air-condition heat exchanger and stick up in electrochemical corrosion problem between the sheet or the heat exchanger corrosion resistance problem in the pipe, and therefore this tubing is received by the market very much.The production technology of aluminum current copper-clad tubing is to utilize in advance the round copper bar of cast and the round aluminum pipe edge of cast in advance to overlap, and is rolled into pipe with planetary rolling then, and then operations such as drawing, finishing, annealing, makes aluminum-cladding copper pipe at last.There is following deficiency in this production method:
1, because the core bar limited length of milling train, so the product length that rolls out is restricted;
2, since copper alloy (comprising brass, copper-nickel alloy, bronze etc.) bar on such planetary rolling, product cracking, oxidation etc. can occur when rolling and can not form product, so more be rolled into bimetallic tubing on this planetary rolling again behind copper alloy bar and the aluminum pipe edge cover, so its internal layer material of such tubing is confined to red copper, outer tubing is confined to fine aluminium or 3003 materials;
3, because the inner materials of this aluminum-cladding copper pipe can only be a red copper, so this series products can not be suitable for and be restricted for the occasion that interior media belongs to various strong corrosive medias;
4, the rolling aluminum-cladding copper pipe that comes out because two will cut out, is wasted very big.
Therefore how to improve the quality of aluminum-cladding copper pipe material, the raw material variety that makes it to be suitable for is more extensive, thereby satisfy higher performance requirement, and effectively to save material be present problem demanding prompt solution.
Summary of the invention
The object of the present invention is to provide a kind of can produce continuously, be applicable to all kinds of copper material aluminiums, good product quality and tangential continuous extruder that can save material and the technology of producing aluminum-cladding copper pipe with this machine continuously.
This tangential continuous extruder provided by the invention, comprise boots seat and the extrusion die that is installed on this boots seat, this comprises die holder and core rod described extrusion die, has the aluminium inlet port on the die holder, core rod is arranged in die holder, core rod comprises and has current divider, guide pipe, cladding mode, the axial retention bolt of shunting pawl, current divider is nonrotatably mounted tO in the die holder, the axial location of its shunting pawl is corresponding to the aluminium inlet port, cladding mode holds out against by the shunting pawl of axial retention bolt and current divider, guide pipe is arranged in current divider, and with cladding mode an axial spacing is arranged.
In order to make copper pipe and aluminium strong bonded, described boots seat bottom is provided with heating member.
Stable for cladding mode is felt relieved, and aluminium can better be shunted, described cladding mode is a taper seat with the contact-making surface of shunting pawl.Described shunting pawl is by 2-4.The taper seat that cladding mode contacts with the shunting pawl, its coning angle is 90 °.
In order to reduce the frictional force of copper pipe centering generation, the inner chamber of cladding mode is a copper pipe centering end at the end near guide pipe, and the length of this centering end is 0.25-0.5 times of copper pipe external diameter.
Described cladding mode is with an overcoat, and between cladding mode and the axial retention bolt grommet is arranged.
The present invention produces the technology of aluminum-cladding copper pipe continuously, comprises the steps:
(1) aluminium bar and copper pipe or inner screw thread copper pipe are carried out alignment, clean, dries up, the extrusion die of tangential continuous extruder should be carried out preheating if copper pipe or inner screw thread copper pipe material are red copper class or copper-nickel alloy class or alloyed copper time-like;
(2) aluminium bar after step (1) is handled and copper pipe or inner screw thread copper pipe are sent into described tangential continuous extruder respectively, when the material of copper pipe or inner screw thread copper pipe is red copper class or copper-nickel alloy class or alloyed copper time-like, the extrusion die of tangential continuous extruder should keep heating-up temperature, and feeds inert gas;
(3) aluminium bar and copper pipe or inner screw thread copper pipe obtain the aluminum-cladding copper pipe base after by tangential continuous extruder;
(4) the aluminum-cladding copper pipe base that step (3) is obtained cools off or enlarging drawing again, and take-up then obtains the aluminum-cladding copper pipe finished product.
The present invention improves existing tangential continuous extruder, especially boots seat and extrusion die innovation and creation have again been carried out, peculiar method of the present invention in addition makes aluminum-cladding copper pipe to change continuous production into by existing milling method production, solved all problems that the aluminum clad copper tube exists in the prior art, improved the quality of aluminum-cladding copper pipe on the one hand, make aluminium coat evenly firmly, and the kind of aluminum-cladding copper pipe is corresponding to be increased, its copper pipe material can be used brass, copper-nickel alloy and alloyed copper, aluminium can be used fine aluminium and alloy aluminum, make the scope of application of aluminum-cladding copper pipe wider, produce continuously on the other hand and saved raw material, reduced cost.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the schematic diagram of extrusion die among Fig. 1.
Fig. 3 is the schematic diagram of current divider.
The specific embodiment
The tangential continuous extruder of the present invention as can be seen from Fig. 1 to Fig. 3, comprise boots seat 1, extrusion die 2, extrusion die 2 is installed on the boots seat 1, extrusion die 2 comprises die holder 3 and core rod 4, has aluminium inlet port 31 on the die holder, core rod 3 is arranged in die holder 4, core rod 3 comprises current divider 6, guide pipe 7, cladding mode 8, axial retention bolt 9, current divider 6 has shunting pawl 61, current divider is installed in the die holder, fastening by bolt 62, prevent that current divider from rotating (also can prevent that current divider from rotating by other modes, as key connection etc.), current divider should make axial location of its shunting pawl corresponding to aluminium inlet port 31 when installing, flow on the copper pipe along the both sides of shunting pawl when aluminium enters Shi Nengneng, make aluminium envelope copper pipe.Cladding mode 8 next-door neighbour's current dividers 6 are installed, there are two by axial retention bolt 9, respectively at the two ends of die holder, one end heads on current divider, and the other end heads on cladding mode 8 by a grommet 5, makes cladding mode 8 hold out against shunting pawl 61, guide pipe is arranged in current divider, and an axial spacing is arranged with cladding mode, so that make copper pipe, enter guide pipe thereafter more fully by the aluminium envelope.The inner chamber of cladding mode is a copper pipe centering end 81 at the end near guide pipe, its length is 0.25-0.5 times of copper pipe external diameter, the frictional force that produces when moving to reduce copper pipe, the outer surface of cladding mode is the face of cylinder for one section, one section is taper seat, one section on the face of cylinder can be overlapped an overcoat 82, one section shunting pawl with current divider of taper seat holds out against, so that the copper pipe of cladding mode centering end has good concentricity with guide pipe, the coating thickness that guarantees aluminium is even, and the coning angle of the taper seat of cladding mode is preferably 90 °.The shunting pawl is 2 to 4, and what present embodiment adopted is 2, becomes 180 ° of face-offs.Boots seat bottom can be established 11 pairs of extrusion dies of heating member and be heated, boots seat front end has inert gas introducing port 12, inert gas can be led in the extrusion die, as can be seen from Figure 1 there is a telescoping tube A to be connected with the supply pipe B of an inert gas, copper pipe passes telescoping tube and enters the boots seat, telescoping tube is close to the boots seat, inert gas is sent into the boots seat, surrounded by inert gas after making copper pipe enter the boots seat, up to aluminium inlet port 31, make copper pipe before being coated, oxidation not take place, to guarantee that copper pipe is firmly coated by aluminium by aluminium.
The technology of producing aluminum-cladding copper pipe continuously is:
To become the rosette copper pipe through the straightener alignment, clean, dry up, enter tangential continuous extruder, pass extrusion die.Simultaneously the round aluminium bar of the φ 9-φ 10.5 of one-tenth dish (or bundle) (can be selected pure round aluminium bar, also can select the circle alloy aluminum lever) clean (or selecting non-online alkali lye pond and clear water reserviors that the aluminium bar is cleaned), dry up through straightener alignment, online ultrasonic wave, enter tangential continuous extruder, softening through mill sassafras heat, flow in the extrusion die, by the shunting of shunting pawl, be pressed into uniformly in the guide pipe together in company with copper pipe, formed continuous, quick, good, the uniform aluminum-cladding copper pipe base of thickness of concentricity.Again through supercooling, directly the take-up of one-tenth dish was as finished product after pipe came out.Also can carry out the continuous drawing of single mode or multimode according to all size needs again.The material of copper pipe can be selected the brass class, as Hsn70-1Hsn70-18, Hal77-2 etc., also can select red copper class, copper-nickel alloy class, as B30, B10 like or the copper pipe of other alloys, if the copper pipe material is red copper class, copper-nickel alloy class or alloyed copper time-like, also should heat extrusion die in advance, heating-up temperature is 450-550 ° of C scope, should keep this temperature when sending into copper pipe and feed inert gas, prevent that copper pipe is because of being subjected to high temperature oxidized, it is bad to cause aluminium to coat, and influences the quality of aluminum-cladding copper pipe.The copper pipe inner surface can be selected light pipe, also can select moulding inner screw thread copper pipe, for outer surface the screw thread requirement is arranged, can directly carry out thread forming (this moulding can onlinely directly be finished) with mould to outer surface.
Claims (9)
1. tangential continuous extruder, comprise boots seat (1) and be installed in extrusion die (2) on this boots seat, it is characterized in that described extrusion die comprises die holder (3) and core rod (4), has aluminium inlet port (31) on the die holder (3), core rod (4) is arranged in die holder (3), core rod (4) comprises the current divider (6) that has shunting pawl (61), guide pipe (7), cladding mode (8), axial retention bolt (9), current divider (6) is nonrotatably mounted tO in the die holder (3), the axial location of its shunting pawl is corresponding to aluminium inlet port (31), cladding mode (8) holds out against by the shunting pawl (61) of axial retention bolt (9) with current divider, guide pipe (7) is arranged in current divider (6), and with cladding mode (8) axial spacing is arranged.
2. tangential continuous extruder according to claim 1 is characterized in that boots seat bottom is provided with heating member (11), and boots seat front end is provided with inert gas introducing port (12).
3. tangential continuous extruder according to claim 1 and 2 is characterized in that the cladding mode (8) and the contact-making surface of shunting pawl (61) are taper seat.
4. tangential continuous extruder according to claim 1 and 2 is characterized in that described shunting pawl (61) is 2-4.
5. tangential continuous extruder according to claim 1 and 2 is characterized in that the inner chamber of cladding mode (8) is a copper pipe centering end (81) at the end near guide pipe (7), and the length of this centering end is 0.25-0.5 times of copper pipe external diameter.
6. tangential continuous extruder according to claim 1 and 2 is characterized in that cladding mode is with an overcoat (82), and between cladding mode and the axial retention bolt grommet (5) is arranged.
7. tangential continuous extruder according to claim 3 is characterized in that the taper seat that cladding mode (8) contacts with shunting pawl (61), and its coning angle is 90 °.
8. a technology of producing aluminum-cladding copper pipe continuously with the described tangential continuous extruder of one of claim 1 to 7 comprises the steps:
(1) aluminium bar and copper pipe or inner screw thread copper pipe are carried out alignment, clean, dries up, the extrusion die of tangential continuous extruder should be carried out preheating if copper pipe or inner screw thread copper pipe material are red copper class or copper-nickel alloy class or alloyed copper time-like;
(2) aluminium bar after step (1) is handled and copper pipe or inner screw thread copper pipe are sent into described tangential continuous extruder respectively, when the material of copper pipe or inner screw thread copper pipe is red copper class or copper-nickel alloy class or alloyed copper time-like, the extrusion die of tangential continuous extruder should keep heating-up temperature, and feeds inert gas;
(3) aluminium bar and copper pipe or inner screw thread copper pipe obtain the aluminum-cladding copper pipe base after by tangential continuous extruder;
(4) the aluminum-cladding copper pipe base that step (3) is obtained cools off or enlarging drawing again, and take-up then obtains the aluminum-cladding copper pipe finished product.
9. technology according to claim 8 is characterized in that extrusion die is carried out preheating and follow-up holding temperature scope is 450-550 ° of C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102703075A CN101920276B (en) | 2010-09-02 | 2010-09-02 | Process for producing aluminum clad copper tube by using tangential continuous extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102703075A CN101920276B (en) | 2010-09-02 | 2010-09-02 | Process for producing aluminum clad copper tube by using tangential continuous extruder |
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| Publication Number | Publication Date |
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| CN101920276A true CN101920276A (en) | 2010-12-22 |
| CN101920276B CN101920276B (en) | 2012-01-04 |
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| CN2010102703075A Expired - Fee Related CN101920276B (en) | 2010-09-02 | 2010-09-02 | Process for producing aluminum clad copper tube by using tangential continuous extruder |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008379A (en) * | 2012-12-12 | 2013-04-03 | 中铝洛阳铜业有限公司 | Method for machining heavy-calibre cupronickel tube by using stopping plate in auxiliary extrusion mode |
| CN103567240A (en) * | 2012-07-18 | 2014-02-12 | 绍兴文理学院 | Pipe drawing device of planetary pipe rolling machine |
| CN104741415A (en) * | 2015-03-23 | 2015-07-01 | 昆明理工大学 | Production method of thin-walled pipe |
| CN107486476A (en) * | 2017-10-11 | 2017-12-19 | 肇庆中特能科技投资有限公司 | The coaxial composite zinc silk hot extrusion manufacturing equipment of carbon fiber |
| CN107619970A (en) * | 2017-10-26 | 2018-01-23 | 江苏亚太安信达铝业有限公司 | Aluminium alloy for domestic air conditioning composite pipe and preparation method thereof |
| CN109813172A (en) * | 2019-03-18 | 2019-05-28 | 青岛登辉机械配件有限公司 | Inner screw thread copper pipe and its processing technology |
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| DE3001671A1 (en) * | 1980-01-18 | 1981-07-23 | Karl Sieber GmbH & Co KG Fabrik für Umformwerkzeuge, 2000 Norderstedt | DIE FOR SOLID FORMING IN THE COLD OR SEMI-WARM PROCESS |
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| CN107486476A (en) * | 2017-10-11 | 2017-12-19 | 肇庆中特能科技投资有限公司 | The coaxial composite zinc silk hot extrusion manufacturing equipment of carbon fiber |
| CN107619970A (en) * | 2017-10-26 | 2018-01-23 | 江苏亚太安信达铝业有限公司 | Aluminium alloy for domestic air conditioning composite pipe and preparation method thereof |
| CN109813172A (en) * | 2019-03-18 | 2019-05-28 | 青岛登辉机械配件有限公司 | Inner screw thread copper pipe and its processing technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101920276B (en) | 2012-01-04 |
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Assignee: HUNAN C-KINGDOM CABLE CO.,LTD. Assignor: HUNAN C-KINGDOM INTERNATIONAL COPPER Co.,Ltd. Contract record no.: 2012430000090 Denomination of invention: Process for producing aluminum clad copper tube by using tangential continuous extruder Granted publication date: 20120104 License type: Exclusive License Open date: 20101222 Record date: 20120517 |
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Application publication date: 20101222 Assignee: HUNAN C-KINGDOM CABLE CO.,LTD. Assignor: HUNAN C-KINGDOM INTERNATIONAL COPPER Co.,Ltd. Contract record no.: 2012430000090 Denomination of invention: Process for producing aluminum clad copper tube by using tangential continuous extruder Granted publication date: 20120104 License type: Exclusive License Record date: 20120517 |
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