CN104138925A - Method for preparing copper/phosphorus double-metal capillary tube - Google Patents
Method for preparing copper/phosphorus double-metal capillary tube Download PDFInfo
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- CN104138925A CN104138925A CN201410272511.9A CN201410272511A CN104138925A CN 104138925 A CN104138925 A CN 104138925A CN 201410272511 A CN201410272511 A CN 201410272511A CN 104138925 A CN104138925 A CN 104138925A
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Abstract
The invention belongs to the technical field of preparation of metal composite capillary tubes and relates to a method for preparing a copper/phosphorus double-metal capillary tube. The method comprises the following steps: performing rotary swaging to realize close combination of a copper tube and a phosphorus tube, performing high-temperature diffusion annealing treatment to obtain a copper/phosphorus composite tube with the interface achieving a metallurgical bonding state, performing drawing or/and non-mandrel drawing by adopting a floating core head and performing intermediate annealing cooperatively to obtain the high-performance copper/phosphorus double-metal capillary tube. According to the method, by combining drawing and non-mandrel drawing of the floating core head, cooperating with the necessary intermediate annealing, the obtained composite capillary tube is high in size precision and good in surface quality. Through sequential diffusion annealing and drawing processing, deformation force needed by forming is small, the service life of tools and molds is long, driving force needed by equipment is small, and production cost is low.
Description
Technical field:
The present invention relates to metal composite capillary tubes preparing technical field, particularly provide a kind of copper/phosphorus bimetallic preparation method capillaceous.
Technical background:
Copper and copper alloy capillary is that specification limit is Φ (1.5～6.1) mm × (0.1～0.8) mm (external diameter × wall thickness, the tubing that class diameter is less, wall thickness is thinner down together) is the important raw and processed materials of extensive use in central air-conditioning, modern household electrical equipment, instrument, instrument.Be characterized in that difficulty of processing is large, added value is high.Along with developing rapidly of China's equipment manufacture, electrical appliance industry and ocean industry, the copper and copper alloy market demand capillaceous is increasing.But on naval vessel, the seawater strong corrosive environment place such as desalinization and Binhai Generator Station, copper and copper alloy capillary can be because of seawater corrosion reduction of service life, the reliability of lowering apparatus.Pure phosphorus capillary has extremely good decay resistance, but the thermal conductivity of phosphorus is lower, and heavy wall heat exchange performance capillaceous is poor, and thin-walled mechanical property capillaceous is difficult to again meet instructions for use.
At present the preparation method of copper/phosphorus multiple tube mainly contains: vertical pulling is compound, hydraulic expanding-forming is compound and the method such as explosive welding, conventionally be all to produce a small amount of plastic deformation and obtain interference fit and realize compound by base material or base, clad material, the multiple tube interface bond strength of preparing is low, double-level-metal compatibility of deformation is poor, be difficult to make capillary, especially phosphorus layer thickness is inhomogeneous, makes the thickness requirement that is difficult to ensure phosphorus layer after capillary.
Summary of the invention:
The problem existing for solving above-mentioned technique, the object of this invention is to provide cold the swaging of a kind of employing and prepares copper/phosphorus bimetallic method capillaceous in conjunction with diffusion annealing and vertical pulling shaping.The method is to utilize to swage and realize combining closely of copper pipe and phosphorus pipe, processes to such an extent that reach copper/phosphorus multiple tube of metallurgical binding state to interface by high temperature diffusion annealing; Then adopt floating core head vertical pulling or/and empty vertical pulling is processed, and in conjunction with intermediate annealing, obtain high-performance copper/phosphorus bimetallic capillary.
In order to achieve the above object, technical scheme of the present invention is: adopting multi-pass cold method preparation size of swaging is copper/phosphorus multiple tube of Φ (9.0～15.0) mm × (1.5～2.0) mm, then diffusion annealing 10～60min under 900～950 DEG C and inert gas shielding condition; Tubing after annealing directly carries out the vertical pulling processing of multi-pass, in conjunction with intermediate annealing, obtains the copper/phosphorus bimetallic capillary that is of a size of Φ (1.5～6.1) mm × (0.1～0.8) mm.Wherein, described multi-pass vertical pulling can adopt vertical pulling or dish to draw, and comprises floating core head vertical pulling or/and empty vertical pulling; Vertical pulling passage section shrinkage rate is between 10%～40%; When vertical pulling accumulation section shrinkage rate reaches 70% left and right, need carry out an intermediate annealing; Described intermediate annealing process is 500～600 DEG C of annealing temperatures, annealing time 1.5～1.0 hours; In straight pulling process, apply lubricatedly, lubricating oil can adopt mineral oil or vegetable oil; Vertical pulling speed is 1～20mm/min; Described inert protective gas can be nitrogen or argon gas.
Concrete steps of the present invention are as follows:
Step 1: adopt the cold preparation of swaging to reach minor diameter copper/phosphorus multiple tube of combining closely, technique is: phosphorus pipe is inserted in copper pipe, insertion is carried out cold the swage shaping of multi-pass section shrinkage rate in 20% left and right after coating the plug of mineral oil, makes the copper/phosphorus multiple tube that is of a size of Φ (9.0～15.0) mm × (1.5～2.0) mm;
Step 2: cold copper/phosphorus multiple tube of swaging preparation is carried out to high temperature diffusion annealing, to realize the metallurgical binding of copper layer and phosphorus bed boundary.Diffusion annealing system is: heating-up temperature is 900～950 DEG C, and temperature retention time is 10～60min, and passes into the anti-oxidation of inert gas shielding;
Step 3: the composite pipe after DIFFUSION TREATMENT is carried out again to the floating core head vertical pulling of multi-pass, make multiple tube size reach external diameter Φ 6.1mm, below wall thickness 0.825mm; Wherein, the passage section shrinkage rate of vertical pulling, between 10%～40%, when vertical pulling accumulation section shrinkage rate reaches 70% left and right, need be carried out an intermediate annealing;
Step 4: in the time that tube outer diameter is less than Φ 2.0mm, adopt the empty vertical pulling of multi-pass, vertical pulling passage section shrinkage rate is between 10%～40%, when vertical pulling accumulation section shrinkage rate reaches 70% left and right, need carry out an intermediate annealing and continue again vertical pulling, the final copper/phosphorus bimetallic capillary that is of a size of Φ (1.5～2.0) mm × (0.1～1.5) mm that obtains.
Tool of the present invention has the following advantages:
1, the present invention adopts cold preparation small size copper/phosphorus multiple tube of swaging, vertical pulling processing after diffusion annealing, and the required deformation force that is shaped is little, and instrument, die life are high, and the required driving force of equipment is little, and production cost is low.
2, it is tight that the present invention utilizes the multiple tube interface laminating of the cold preparation of swaging, and under suitable high temperature diffusion annealing condition, interface can reach metallurgical binding, is conducive to follow-up vertical pulling and is shaped, and obtains high performance copper/phosphorus bimetallic capillary.
3, the present invention adopts the method that floating core head vertical pulling and empty vertical pulling combine, and is equipped with necessary intermediate annealing, is more conducive to the deformation processing of copper layer and phosphorus layer, and the composite capillary dimensional accuracy that obtains is high, surface quality good.
Detailed description of the invention:
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1: the copper/phosphorus bimetallic processing method of capillary tube that is of a size of Φ 3.0mm × 1.5mm.
Pure the TA2 that is of a size of Φ 12.7mm × 1.55mm phosphorus pipe is inserted in the T2 copper tube that is of a size of Φ 19.0mm × 2.0mm, insertion coats that to carry out 3 passage section shrinkage rates after the plug of mineral oil be that the cold of 20% left and right swaged, and makes the copper/phosphorus multiple tube that is of a size of Φ 14.1mm × 1.3mm.Multiple tube is carried out the diffusion annealing processing of 950 DEG C of 10min under argon shield, make interface formation metallurgical binding.Multiple tube after DIFFUSION TREATMENT obtains the multiple tube of Φ 7.2mm × 0.7mm through the floating core head vertical pulling of 5 passages, carry out after the annealing in process of 500 DEG C of 1h, and continuation floating core head vertical pulling 5 passages obtain copper/phosphorus bimetallic capillary of Φ 3.0mm × 1.5mm.Vertical pulling passage section shrinkage rate, between 10%～40%, adopts mineral oil to be lubricated.
Embodiment 2: the copper/phosphorus alloy bimetallic processing method of capillary tube that is of a size of Φ 2.0mm × 0.4mm.
The phosphorus alloy pipe that is of a size of Φ 12.0mm × 1.5mm is inserted in the T2 copper tube that is of a size of Φ 15.0mm × 1.4mm, insertion is coated and is carried out 4 passage section shrinkage rates after the plug of mineral oil and swage at the cold of 20% left and right, makes the copper/phosphorus alloy multiple tube that is of a size of Φ 11.0mm × 1.0mm.Multiple tube is carried out the diffusion annealing processing of 920 DEG C of 30min under argon shield, make interface formation metallurgical binding.Multiple tube after DIFFUSION TREATMENT obtains the multiple tube of Φ 5.5mm × 1.5mm through the floating core head vertical pulling of 5 passages, carry out becoming through 5 passage floating core head vertical pullings after the annealing in process annealing of 500 DEG C of 1h copper/phosphorus alloy bimetallic capillary of Φ 2mm × 0.4mm again.Vertical pulling passage section shrinkage rate, between 10%～40%, adopts mineral oil to be lubricated.
Embodiment 3: the copper/phosphorus bimetallic processing method of capillary tube that is of a size of Φ 1.5mm × 0.1mm.
Pure the TA2 that is of a size of Φ 8.0mm × 0.4mm phosphorus pipe is inserted in the T2 copper tube that is of a size of Φ 10.0mm × 0.9mm, insertion is coated and is carried out 5 passage section shrinkage rates after the plug of mineral oil and swage at the cold of 20% left and right, makes the copper/phosphorus multiple tube that is of a size of Φ 9.0mm × 0.6mm.Multiple tube is carried out the diffusion annealing processing of 900 DEG C of 60min under argon shield, make interface formation metallurgical binding.Multiple tube after DIFFUSION TREATMENT obtains the multiple tube of Φ 4.0mm × 0.3mm through the floating core head vertical pulling of 4 passages; Carry out, after the annealing in process of 500 DEG C of 1h, obtaining the multiple tube of Φ 2.0mm × 0.15mm through the floating core head vertical pulling of 5 passages; Carry out after the annealing in process of 500 DEG C of 1h, then become copper/phosphorus bimetallic capillary (needing during this time to carry out the intermediate annealing of 500 DEG C of 1h) of Φ 1.5mm × 0.1mm through the empty vertical pulling of 7 passages.Vertical pulling passage section shrinkage rate, between 10%～40%, adopts mineral oil to be lubricated.
Claims (3)
1. copper/phosphorus bimetallic preparation method capillaceous, is characterized in that concrete steps are as follows:
Step 1: adopt the cold preparation of swaging to reach minor diameter copper/phosphorus multiple tube of combining closely, technique is: phosphorus pipe is inserted in copper pipe, insertion is coated and is carried out multi-pass section shrinkage rate after the plug of mineral oil in 20% the cold shaping of swaging, and makes the copper/phosphorus multiple tube that is of a size of Φ (9.0～15.0) mm × (1.5～2.0) mm;
Step 2: cold copper/phosphorus multiple tube of swaging preparation is carried out to high temperature diffusion annealing, to realize the metallurgical binding of copper layer and phosphorus bed boundary; Diffusion annealing system is: heating-up temperature is 900～950 DEG C, and temperature retention time is 10～60min, and passes into the anti-oxidation of inert gas shielding;
Step 3: the composite pipe after DIFFUSION TREATMENT is carried out again to the floating core head vertical pulling of multi-pass, vertical pulling passage section shrinkage rate is between 10%～40%; Make multiple tube size reach external diameter Φ 6.1mm, below wall thickness 0.825mm; Wherein, the passage section shrinkage rate of vertical pulling, between 10%～40%, when vertical pulling accumulation section shrinkage rate reaches 70%, be carried out an intermediate annealing, 500～600 DEG C of annealing temperatures, annealing time 1.5～1.0 hours;
Step 4: in the time that tube outer diameter is less than Φ 2.0mm, adopt the empty vertical pulling of multi-pass, vertical pulling passage section shrinkage rate is between 10%～40%, when vertical pulling accumulation section shrinkage rate reaches 70%, need carry out an intermediate annealing and continue again vertical pulling, the final copper/phosphorus bimetallic capillary that is of a size of Φ (1.5～2.0) mm × (0.1～1.5) mm that obtains.
2. a kind of copper/phosphorus bimetallic preparation method capillaceous according to claim 1, it is characterized in that described copper/phosphorus comprises internal layer and the outer field situation using copper as multiple tube, and described copper-clad is drawn together fine copper and wrought copper alloy, phosphorus comprises pure phosphorus and distortion phosphorus alloy.
3. according to a kind of copper/phosphorus bimetallic preparation method capillaceous described in claim 1 or 2, it is characterized in that will applying in straight pulling process lubricated, lubricating oil adopts mineral oil or vegetable oil; Vertical pulling speed is 1～20mm/min; Described inert protective gas is nitrogen or argon gas.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0445904A2 (en) * | 1990-03-08 | 1991-09-11 | MANNESMANN Aktiengesellschaft | Method of manufacturing a thick-walled high-pressure metal tube |
| EP1043084A2 (en) * | 1999-04-09 | 2000-10-11 | Daido Tokushuko Kabushiki Kaisha | Heat resisting metal tube and method for manufacturing same |
| CN1569352A (en) * | 2004-04-30 | 2005-01-26 | 上海瓦恩德特种金属材料有限公司 | Composite stainless steel wire and its manufacturing process |
| CN101745577A (en) * | 2008-12-17 | 2010-06-23 | 北京有色金属研究总院 | Spinning processing method of carbon steel lining stainless steel composite pipe |
| CN102527768A (en) * | 2010-12-08 | 2012-07-04 | 江苏兴荣高新科技股份有限公司 | Manufacturing method of copper-clad aluminum pipe |
| CN102553961A (en) * | 2010-12-14 | 2012-07-11 | 张皓 | Compound pipe manufacturing technology for metallurgically bonding anti-corrosion special alloy lining with pipeline steel outer sleeve |
-
2014
- 2014-06-18 CN CN201410272511.9A patent/CN104138925B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0445904A2 (en) * | 1990-03-08 | 1991-09-11 | MANNESMANN Aktiengesellschaft | Method of manufacturing a thick-walled high-pressure metal tube |
| EP1043084A2 (en) * | 1999-04-09 | 2000-10-11 | Daido Tokushuko Kabushiki Kaisha | Heat resisting metal tube and method for manufacturing same |
| CN1569352A (en) * | 2004-04-30 | 2005-01-26 | 上海瓦恩德特种金属材料有限公司 | Composite stainless steel wire and its manufacturing process |
| CN101745577A (en) * | 2008-12-17 | 2010-06-23 | 北京有色金属研究总院 | Spinning processing method of carbon steel lining stainless steel composite pipe |
| CN102527768A (en) * | 2010-12-08 | 2012-07-04 | 江苏兴荣高新科技股份有限公司 | Manufacturing method of copper-clad aluminum pipe |
| CN102553961A (en) * | 2010-12-14 | 2012-07-11 | 张皓 | Compound pipe manufacturing technology for metallurgically bonding anti-corrosion special alloy lining with pipeline steel outer sleeve |
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