CN102211122B - Conical spiral-reduction special-forging forming machine and forming method for pipes - Google Patents
Conical spiral-reduction special-forging forming machine and forming method for pipes Download PDFInfo
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- CN102211122B CN102211122B CN 201010140882 CN201010140882A CN102211122B CN 102211122 B CN102211122 B CN 102211122B CN 201010140882 CN201010140882 CN 201010140882 CN 201010140882 A CN201010140882 A CN 201010140882A CN 102211122 B CN102211122 B CN 102211122B
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- 238000005242 forging Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000000498 cooling water Substances 0.000 claims abstract description 15
- 230000007704 transition Effects 0.000 claims abstract description 9
- 238000000465 moulding Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 abstract description 12
- 229910052751 metal Inorganic materials 0.000 abstract description 12
- 230000002035 prolonged effect Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- -1 ferrous metals Chemical class 0.000 abstract 1
- 239000000463 material Substances 0.000 description 12
- 239000007788 liquid Substances 0.000 description 11
- 239000003638 chemical reducing agent Substances 0.000 description 7
- 238000003754 machining Methods 0.000 description 7
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000007493 shaping process Methods 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000012797 qualification Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention discloses a conical spiral-reduction special-forging forming machine and a forming method for pipes. A die is screened according to conditions of good surface finishment, high Rockwell hardness, fit of Rockwell hardness of a cover die with that of a core die, and the like; and good products of reducing pipes or conical reducing pipe parts which take conical areas as transition areas of non-ferrous metals and have the characteristics of attractive appearance, high processing accuracy, good inner and outer surface finishment, low residue content and the like are formed, and the service life of the die is prolonged. In the forming process, a switchboard programmable controller is used to control the normal work of various devices of the whole forming machine, so that the various devices work more cooperatively and efficiently in order; and the continuity of the processing production process is improved. A cooling water system cools the tooling die, so that the tooling die is prevented from deforming at high temperature so as to avoid influencing the surface finishment of the working surface, the service life of the tooling die is prolonged, and the inner and outer surface finishment of the pipes and the yield of the finished products are improved.
Description
Technical field
The present invention relates to the deep process technology field of non-ferrous metal tube, especially relate to a kind of conical spiral-necking heterotypic-forge forming machine for pipe and forming method thereof.
Background technology
The deep process technology of non-ferrous metal tube relates to the important processing and forming technology technology of metal pipe material goods industry.As everyone knows, the range of application of metal pipe material goods is very extensive, be used in the supporting pipeline component of aircraft, automobile, refrigerator, air-conditioning and refrigerator etc., have certain taper tubing such as copper tube end and be used for air conditioner piping, the assembly that is used for refrigerator and refrigerator with the reducing pipes of root copper pipe different tube diameters, the exhaust pipe fitting of automobile, the air-conditioning duct assembly in the aircraft etc.Because these manufacturings are to the reducing pipes of non-ferrous metal take conical region as transition region or profile, machining accuracy, the surfaces externally and internally fineness of tubing and the having relatively high expectations of residuals content of taper reducer material pipeline component, therefore, the product that adopts the method for traditional extruding or the moulding of reducing pipes welding processing to produce can not satisfy instructions for use in these areas.Simultaneously very huge again in the market demand of these these type of metal tubes of field, and traditional forming method can not be produced continuously, produces and does not slowly just satisfy demand and supply.
Therefore, continued to bring out out new technology on the market, a kind of reducing pipe spinning processing device such as Chinese patent ZL200720050136.9, die die cavity wall at traditional shaped device is opened at least two radiating grooves, lower the temperature to moulds of industrial equipment by radiating groove, thereby prevented the at high temperature surface smoothness of its working face of deformation effect of moulds of industrial equipment, prolonged to a certain extent the service life of moulds of industrial equipment.Yet the cooling effect of this radiating groove is limited, and the machine available machine time, longer its cooling-down effect was more not obvious, and qualification rate will fast-descending.Selection for traditional moulds of industrial equipment in this patent has proposed requirement, select the good material of red hardness to prolong the machining accuracy of mold use life-span and raising tubing, yet this saying is inapt, more rough, hardness excessive too small all be inappropriate, the excessive roll extrusion of hardness is not fully so that product glossiness is inadequate, and hardness is too small to be not easy to roll extrusion.In addition punch (core) and die (cover die) if hardness do not mate, all can have a strong impact on the mold use life-span, and the machining accuracy of tubing is inadequate.
Summary of the invention
The object of the invention is to overcome prior art to non-ferrous metal take conical region as transition region reducing pipes or the profile of taper reducer material pipeline component is poor, machining accuracy is not high, the defective that surfaces externally and internally fineness is poor and residuals content is high of tubing, provide a kind of and can mold good looking appearance, the different forging molding method that contracts has been revolved in machining accuracy is high, surfaces externally and internally fineness is good and residuals content is low tubing taper.
Another object of the present invention is to overcome that prior art can not be produced continuously and complete machine all uses the power supply of high voltage source to cause easily the nearly body operator defective that accidents happened, provide a kind of handling safety simple, cost is low, be easy to promote the use of the conical spiral-necking heterotypic-forge forming machine for pipe that automaticity is high.
In order to achieve the above object, the present invention is achieved through the following technical solutions: the different forging molding method of contracting is revolved in a kind of tubing taper, it is characterized in that the method may further comprise the steps:
(1) preparation;
A. select conical surface fineness in the cover die and be not less than 2 grades and Rockwell hardness scope at the cover die of 48HRC to 62HRC;
B. the shaped article that obtains according to actual needs corresponding machined parameters taper tiltangleθ or ramp height h select corresponding cover die;
C. specify bottom surface take this cover die as a processing datum, and this cover die is installed to revolving on the different forging processing unit (plant) of contracting of forming machine;
The bell internal diameter of the shaped article that d. obtains is according to actual needs selected corresponding Rockwell hardness scope at the core of 62HRC to 67HRC, and this core is inserted in the die cavity of cover die;
E. select the Rockwell hardness scope at the locking die of 42HRC to 50HRC, specify this locking die bottom surface to be another processing datum, and be installed on the clamping and positioning device of forming machine;
(2) formative stage;
The conical camber tiltangleθ of the shaped article that a. actual needs is obtained, slope length L and these machined parameters of ramp height h are input in the exchange programmable controller of forming machine, and the exchange programmable controller is set as the predefined parameter instruction with these machined parameters and controls cover die work;
The tubing that b. will need to process is placed in the locking die, and its front end inner hole sleeve is located at the core head, fixes with the hydraulic fastener on the clamping and positioning device again;
C. the exchange programmable controller is opened the cooling water system on the forming machine, by circulate successively clamping and positioning device and revolve the different forging processing unit (plant) of contracting of water pipe;
D. this tubing drives advance and retreat by the pneumatic propelling unit on the clamping and positioning device, and its outer surface circumferentially is subject to the roll extrusion effect of cover die so that the tapered zone of this tube forming is reducing pipes or the taper reducer material of transition region.
If the fineness of fiting contact-making surface or working surface of mould is not high, the coarse usability of the conical surface of the tubing that produces is poor.If the hardness of a whole set of mould is little or the hardness of core and cover die is not mated, will have a strong impact on the mold use life-span.If the processing datum choosing is wrong, mould just can not use.The conditions such as the method adopts that surface smoothness is good, Rockwell hardness is high, cover die and core Rockwell hardness are complementary are screened mould, be conducive to mold the reducing pipes of non-ferrous metal take conical region as transition region or the excellent product of the characteristics such as good looking appearance, the machining accuracy surfaces externally and internally fineness high, tubing of taper reducer material pipeline component is good and residuals content is low, prolonged simultaneously the mold use life-span.In forming process, utilize the exchange programmable controller to regulate and control the work of the each several part device of whole forming machine so that the each several part device orderly, coordinate, machine-shaping efficient is high continuously.Lower the temperature to moulds of industrial equipment (cover die, core film, locking die etc.) by cooling water system, thereby prevented the at high temperature surface smoothness of its working face of deformation effect of moulds of industrial equipment, prolonged the qualification rate that has improved simultaneously tube surfaces fineness and finished product service life of moulds of industrial equipment.Two selected processing datums, exchange programmable controller just are convenient to calculate the displacement that pneumatic propelling unit advances.
As preferably, cover die in said method is for revolving the contracting mould, this revolves the contracting mould and adopts function L=h ∫ tg θ d θ formula to calculate the slope length L of mould, wherein h is the slope length of the shaped article that obtains of actual needs, θ is the curved surface inclination angle of the shaped article that obtains of actual needs, and the scope of this α requires to determine according to different converted products.
The contracting Design of Moulds that revolves that revolves continuously contracting processing use adopts curved surface tangent calculus to calculate decision, the theoretical result who calculates carries out necessary finishing in conjunction with actual product needed again and improves, final definite actual needed contracting mould that accurately revolves of producing, wherein the whole contracting die curve range of tilt angles of revolving is 6 °～12 °, the angle of inclination is excessive or too small, all can not guarantee the normal moulding of taper surface.
Replacement scheme as such scheme, cover die in said method is different forging mould, this different forging mould adopts function #=arctg α formula to calculate the curved surface tiltangleθ of mould, wherein α is the curved surface inclination angle of the shaped article that obtains of actual needs, the scope of this α requires to determine that the scope of α is 6 ° ~ 11 ° according to different converted products.
The parameter of the different forging mould that continuous different forging processing is used adopts arc cotangent function or arctan function calculative determination, wherein whole different forging mould curved surface range of tilt angles is 6 °～11 °, the angle of inclination is excessive or too small, all can not guarantee the moulding of taper surface.
As preferably, in formative stage b, the high workload hydraulic pressure of hydraulic fastener is 20MPa.The working hydraulic pressure of hydraulic fastener is determined by the external diameter of tubing to be processed, tube outer diameter to be processed is not more than 2MPa less than the working hydraulic pressure of 13mm, tube outer diameter to be processed greater than 13mm but less than the working hydraulic pressure scope of 15mm at 2MPa between the 6MPa, tube outer diameter to be processed is 6 ~ 12 MPa greater than the working hydraulic pressure scope of 15mm.
If hydraulic pressure is excessive in the processing process, will make the metal pipe material deflection excessive, serious impression appears in the outer surface of tubing simultaneously.If hydraulic pressure is too small, serious scuffing phenomenon will appear in the outer surface of metal pipe material, so must select optimum working hydraulic pressure to guarantee normally carrying out of production work.
A kind of conical spiral-necking heterotypic-forge forming machine for pipe, comprise and revolve contracting different forging processing unit (plant), clamping and positioning device and power supply, it is characterized in that, also be provided with cooling water system, gas-liquid work station and exchange programmable controller on this forming machine, the exchange programmable controller with revolve contracting different forging processing unit (plant), clamping and positioning device, cooling water system all links to each other with the gas-liquid work station; Cooling water system walks around to successively to connect by water pipe and revolves the different forging processing unit (plant) of contracting and clamping and positioning device; The gas-liquid work station links to each other with clamping and positioning device;
This forming machine is provided with the high voltage source of joining with peripheral three-phase electricity, and high voltage source connects low-tension supply by step-down transformer; High voltage source with revolve contracting different forging processing unit (plant), clamping and positioning device, cooling water system and gas-liquid work station and join; Low-tension supply and exchange programmable controller join.
Control section partly adopts the integral arrangement that cooperates with frock in this former complete machine, if split is arranged and will be brought than burden aspects such as production operation, co-ordinations, so the present invention adopts along separate routes high-low voltage power source power supply to the each several part device according to concrete needed operating voltage, directly contact electric control device and exchange programmable controller and adopt low-tension supply 36V power supply; Revolve the different forging producing unit of contracting and adopt high voltage source 380V power supply.The advantage of the shunt high-low voltage power source power supply that the present invention adopts has two aspects, has guaranteed normally carrying out of shaping work on the one hand, has guaranteed on the other hand producers' continued operation safety.
As preferably, exchange programmable controller peripheral hardware point dynamic control device, the some dynamic control device links to each other with the exchange programmable controller by an electricity-saving appliance.Also be provided with safety protective circuit in the point of safes dynamic control device, the anxious break time of its short circuit is 1ms.
As preferably, the pneumatic propelling unit on the clamping and positioning device, hydraulic fastener and locking die, pneumatic propelling unit and hydraulic fastener all are connected on the gas-liquid work station, and locking die and pneumatic propelling unit and hydraulic fastener are connected.The exchange programmable controller is assigned instruction and is started the gas-liquid work station, by supplying with pneumatic propelling unit and the hydraulic fastener of clamping and positioning device behind gas governor, hydraulic workstation and the relevant instrument adjuster.
As preferably, the described different forging processing unit (plant) of contracting that revolves is provided with cover die, and this cover die is for revolving the contracting mould, revolves in the contracting mould to be equipped with core.
As the replacement scheme of such scheme, the described different forging processing unit (plant) of contracting that revolves is provided with cover die, and this cover die is different forging mould, is equipped with core in the different forging mould.
Beneficial effect: (1) the method adopts that surface smoothness is good, Rockwell hardness is high, cover die screens mould with conditions such as the core Rockwell hardness are complementary, is conducive to mold reducing pipes or the advantage such as the surfaces externally and internally fineness of the good looking appearance of taper reducer material parts, machining accuracy height, tubing good and residuals content low of non-ferrous metal take conical region as transition region.
(2) in forming process, utilize the exchange programmable controller to regulate and control the work of the each several part device of whole forming machine, so that the each several part device in order, is more coordinated, high efficiency, guaranteed simultaneously the continuity of machine-shaping process.
(3) by cooling water system moulds of industrial equipment (cover die, core film, locking die etc.) are cooled off, prevent the at high temperature surface smoothness of its working face of deformation effect of moulds of industrial equipment, prolonged the surface smoothness that has improved simultaneously machine-shaping tubing service life of moulds of industrial equipment and the qualification rate of finished product.
Description of drawings
Fig. 1 is the structural representation of forming machine of the present invention;
Fig. 2 is a kind of combining structure schematic diagram that revolves the different forging processing unit (plant) of contracting and clamping and positioning device in the forming machine of the present invention;
Fig. 3 is the another kind of combining structure schematic diagram that revolves the different forging processing unit (plant) of contracting and clamping and positioning device in the forming machine of the present invention.
Among the figure: 1-point dynamic control device, 2-electricity-saving appliance, 3-exchange programmable controller, 4-revolves the different forging processing unit (plant) of contracting, 5-clamping and positioning device, 6-cooling water system, 7-gas-liquid work station, 8-high voltage source, 9-low-tension supply, the 10-core, 11-taper reducer material, the reducing pipes of 12-take conical region as transition region, 13-revolves the contracting mould, the different forging mould of 14-, 15-locking die, the 16-hydraulic fastener, the 17-pneumatic propelling unit.
The specific embodiment
The present invention is further illustrated below in conjunction with accompanying drawing and specific embodiment.
Embodiment 1: as shown in Figure 1, a kind of conical spiral-necking heterotypic-forge forming machine for pipe comprises a dynamic control device 1, electricity-saving appliance 2, exchange programmable controller 3, revolves the different forging processing unit (plant) 4 of contracting, clamping and positioning device 5, cooling water system 6, gas-liquid work station 7, high voltage source 8 and low-tension supply 9.High voltage source 8 is joined with peripheral three-phase electricity, and high voltage source 8 obtains low-tension supply 9 by step-down transformer; High voltage source 8 with revolve the different forging processing unit (plant) 4 of contracting, clamping and positioning device 5, cooling water system 6 and gas-liquid work station 7 and join.Low-tension supply 9 is joined with exchange programmable controller 3 and some dynamic control device 1.
3 external somes dynamic control devices 1 of exchange programmable controller, some dynamic control device 1 links to each other with exchange programmable controller 3 by an electricity-saving appliance 2.Exchange programmable controller 3 regulation and control revolve the different forging processing unit (plant) 4 of contracting, clamping and positioning fill 5 put, the co-ordination of cooling water system 6 and gas-liquid work station 7.Cooling water system 6 walks around to successively to connect by water pipe and revolves the different forging processing unit (plant) 4 of contracting and clamping and positioning device 5.
As shown in Figure 2, clamping and positioning device 4 is provided with pneumatic propelling unit 17, hydraulic fastener 16 and locking die 15, pneumatic propelling unit 17 and hydraulic fastener 16 all are connected on the gas-liquid work station 6, and locking die 15 is connected with pneumatic propelling unit 17 and hydraulic fastener 16.Revolve contracting and be equipped with on the different forging processing unit (plant) 4 and revolve contracting mould 13, revolve and be equipped with core 10 in the contracting mould 13.Revolve contracting mould 13 and be used for machine-shaping taper reducer material 11.
Utilizing said apparatus to carry out the tubing taper revolves shown in the method following steps of the different forging molding of contracting:
(1) preparation cover die;
Revolving contracting mould 13 adopts function L=h ∫ tg θ d θ formula to calculate the slope length L of mould, wherein h is the slope length of the shaped article that obtains of actual needs, θ is the curved surface inclination angle of the shaped article that obtains of actual needs, and the scope of this θ is 6 ° ~ 12 °.
(2) preparation;
A. select and revolve conical camber surface smoothness in the contracting mould 13 and be not less than 2 grades and Rockwell hardness scope and revolve contracting mould 13 at 48HRC to 62HRC;
B. the shaped article that obtains according to actual needs corresponding machined parameters conical camber tiltangleθ or ramp height h select and revolve accordingly contracting mould 13;
C. specify take this bottom surface of revolving contracting mould 13 as processing datum, and with this revolve contracting mould 13 be installed to forming machine revolving the contracting different forging processing unit (plant) 4 on;
The bell internal diameter of the shaped article that d. obtains is according to actual needs selected Rockwell hardness scope correspondingly at the core 10 of 62HRC to 67HRC, and this core 10 is inserted in the die cavity that revolves contracting mould 13 is mated;
E. select the Rockwell hardness scope at the locking die 15 of 42HRC to 50HRC, specify these locking die 15 bottom surfaces to be another processing datum, and be installed on the clamping and positioning device 5 of forming machine;
(3) formative stage;
The conical camber tiltangleθ of the shaped article that a. actual needs is obtained, slope length L and these machined parameters of ramp height h are input in the exchange programmable controller 3 of forming machine, and exchange programmable controller 3 is set as the predefined parameter instruction with these machined parameters and controls contracting mould 13 work of revolving;
The tubing that b. will need to process is placed in the locking die 15, and its front end inner hole sleeve is located at core 10 heads, and is fixing with the hydraulic fastener 16 on the clamping and positioning device 5 again; The high workload hydraulic pressure of hydraulic fastener 16 is 20MPa, the working hydraulic pressure of hydraulic fastener 16 is determined by the external diameter of tubing to be processed, tube outer diameter to be processed is not more than 2MPa less than the working hydraulic pressure of 13mm, and tube outer diameter to be processed is 6 ~ 12 MPa greater than the working hydraulic pressure scope of 15mm.
C. the cooling water system 6 on the exchange programmable controller 3 unlatching forming machines walks around to successively clamping and positioning device 5 and revolves different forging processing unit (plant) 4 coolings of contracting by the water pipe feeding cold water;
D. this tubing drives advance and retreat by the pneumatic propelling unit 17 on the clamping and positioning device 5, and its outer surface circumferentially is subject to revolving the roll extrusion effect of contracting mould 13; So that the tapered reducing pipes 11 of this tube forming.
Embodiment 2: as shown in Figure 3, different forging mould 14 adopts function #=arctg α formula to calculate the curved surface tiltangleθ of mould, and wherein α is the curved surface inclination angle of the shaped article that obtains of actual needs, and the scope of this α is 6 ° ~ 11 °.To revolve contracting mould 13 in these different forging mould 14 alternative embodiments 1, be used for the reducing pipes 12 of machine-shaping take conical region as transition region.
Claims (4)
1. the different forging molding method of contracting is revolved in a tubing taper, it is characterized in that the method may further comprise the steps:
(1) preparation;
A. select conical surface fineness in the cover die and be not less than 2 grades and Rockwell hardness scope at the cover die of 48HRC to 62HRC;
B. the shaped article that obtains according to actual needs corresponding machined parameters conical camber tiltangleθ or ramp height h select corresponding cover die;
C. specify bottom surface take this cover die as a processing datum, and this cover die is installed to revolving on the different forging processing unit (plant) of contracting of forming machine;
The bell internal diameter of the shaped article that d. obtains is according to actual needs selected corresponding Rockwell hardness scope at the core of 62HRC to 67HRC, and this core is inserted in the die cavity of cover die;
E. select the Rockwell hardness scope at the locking die of 42HRC to 50HRC, specify this locking die bottom surface to be another processing datum, and be installed on the clamping and positioning device of forming machine;
(2) formative stage;
The conical camber tiltangleθ of the shaped article that a. actual needs is obtained, slope length L and these machined parameters of ramp height h are input in the exchange programmable controller of forming machine, and the exchange programmable controller is set as the predefined parameter instruction with these machined parameters and controls cover die work;
The tubing that b. will need to process is placed in the locking die, and its front end inner hole sleeve is located at the core head, fixes with the hydraulic fastener on the clamping and positioning device again;
C. the exchange programmable controller is opened the cooling water system on the forming machine, by circulate successively clamping and positioning device and revolve the different forging processing unit (plant) of contracting of water pipe;
D. this tubing drives advance and retreat by the pneumatic propelling unit on the clamping and positioning device, and its outer surface circumferentially is subject to the roll extrusion effect of cover die so that the tapered zone of this tube forming is the reducing pipes of transition region.
2. the different forging molding method of contracting is revolved in tubing taper according to claim 1, it is characterized in that, cover die in said method is for revolving the contracting mould, this revolves the contracting mould and adopts function L=h ∫ tg θ d θ formula to calculate the slope length L of mould, wherein h is the ramp height of the shaped article that obtains of actual needs, θ is the conical camber inclination angle of the shaped article that obtains of actual needs, and the scope of this θ is 6 ° ~ 12 °.
3. the different forging molding method of contracting is revolved in tubing taper according to claim 1 and 2, it is characterized in that, in formative stage b, the high workload hydraulic pressure of hydraulic fastener is 20MPa.
4. the different forging molding method of contracting is revolved in tubing taper according to claim 3, it is characterized in that, the working hydraulic pressure of described hydraulic fastener is determined by the external diameter of tubing to be processed, tube outer diameter to be processed is not more than 2MPa less than the working hydraulic pressure of 13mm, tube outer diameter to be processed greater than 13mm but less than the working hydraulic pressure scope of 15mm at 2MPa between the 6MPa, tube outer diameter to be processed is 6 ~ 12 MPa greater than the working hydraulic pressure scope of 15mm.
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| CN 201010140882 CN102211122B (en) | 2010-04-08 | 2010-04-08 | Conical spiral-reduction special-forging forming machine and forming method for pipes |
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| CN 201010140882 CN102211122B (en) | 2010-04-08 | 2010-04-08 | Conical spiral-reduction special-forging forming machine and forming method for pipes |
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| CN102601199A (en) * | 2012-02-29 | 2012-07-25 | 苏州经贸职业技术学院 | Precise-spin reducing device for fixed core type thin wall pipe |
| CN108856410A (en) * | 2018-06-13 | 2018-11-23 | 开平市祺龙五金塑胶有限公司 | A kind of nozzle processing unit (plant) and its processing method |
| CN109013937A (en) * | 2018-08-13 | 2018-12-18 | 宋丽 | A kind of reducing device of precompressed compact form automobile air-conditioning pipe processing |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3195331A (en) * | 1960-08-22 | 1965-07-20 | United Aircraft Corp | Tube drawing apparatus |
| CN1421288A (en) * | 2002-12-31 | 2003-06-04 | 华南理工大学 | Multifunctional rotary press modelling machine |
| CN201049370Y (en) * | 2007-04-09 | 2008-04-23 | 冈山精工(中山)有限公司 | Spinning processing device for reducing pipe |
| CN201644603U (en) * | 2010-04-08 | 2010-11-24 | 浙江康盛股份有限公司 | Conical spiral-necking heterotypic-forge forming machine for pipe |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007050423A (en) * | 2005-08-17 | 2007-03-01 | Univ Of Electro-Communications | Mouth drawing method for metal circular pipe and die for mouth drawing |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3195331A (en) * | 1960-08-22 | 1965-07-20 | United Aircraft Corp | Tube drawing apparatus |
| CN1421288A (en) * | 2002-12-31 | 2003-06-04 | 华南理工大学 | Multifunctional rotary press modelling machine |
| CN201049370Y (en) * | 2007-04-09 | 2008-04-23 | 冈山精工(中山)有限公司 | Spinning processing device for reducing pipe |
| CN201644603U (en) * | 2010-04-08 | 2010-11-24 | 浙江康盛股份有限公司 | Conical spiral-necking heterotypic-forge forming machine for pipe |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2007-50423A 2007.03.01 |
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