CN104138923A - Drawing forming method of two-metal layered composite wire - Google Patents
Drawing forming method of two-metal layered composite wire Download PDFInfo
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- CN104138923A CN104138923A CN201410314512.5A CN201410314512A CN104138923A CN 104138923 A CN104138923 A CN 104138923A CN 201410314512 A CN201410314512 A CN 201410314512A CN 104138923 A CN104138923 A CN 104138923A
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Abstract
The invention relates to a drawing forming method of a two-metal layered composite wire, which belongs to the technical field of the preparation of a two-metal layered composite wire. The drawing forming method is characterized by comprising the following steps: cladding a metal pipe blank with a heterogeneous rod, drawing and pre-compounding the metal pipe blank with the heterogeneous rod at a room temperature in a single manner, rapidly heating, treating by adopting the combination of drawing and metallurgically compounding under a condition of controlling the temperature and finely drawing at the room temperature to prepare a high-quality two-metal layered composite wire. The drawing forming method has the advantages that the combination strength of a compounded interface of the two-layer layered composite wire is high, a dispersion layer is thin, composite metal is uniformly distributed along the circumferential direction and the longitudinal direction, a cladding ratio is easy to precisely control, the drawing intermediate annealing is not required, the product specification is flexible, raw materials can be freely combined, the product quality and performance are excellent, and the micro two-metal layered composite wire with the diameter of less than 1mm is easy to prepare. The drawing forming method is particularly suitable for preparing the two-metal layered composite wire with an inter-metal compound being easy to generate on the compounded interface and the two-metal layered composite wire which is difficult to process.
Description
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Technical field
The invention belongs to bimetallic stratiform composite wire preparing technical field, be specifically related to a kind of bimetallic stratiform composite wire drawing forming method.
Technical background
Bimetallic stratiform composite wire be by two constituent element metal materials by special preparation processing method, at the compound one deck plied timber of parent metal wire surface material, form.Compare with single constituent element metal wire rod, bimetallic stratiform composite wire through appropriate design combined shaping combines two constituent element metal materials advantage separately, not only can save noble metal dosage, and can obtain physics, chemistry, the mechanics that single constituent element metal material do not have and the performance [Huang Baiyun such as can weld, Li Chenggong, Shi Likai, Qiu Guanzhou, Zuo Tieyong. the grand ceremony of Chinese material engineering (the 5th volume nonferrous materials engineering (under)) [M]. Beijing: Chemical Industry Press, 2006].In recent years, along with scientific and technical high speed development, development, production and the application of bimetallic stratiform composite wire more and more come into one's own, and become one of new metal material of high-performance of competitively developing various countries.Up to now, bimetallic stratiform composite wire in fields such as Aeronautics and Astronautics, oil, chemical industry, metallurgy, machinery, automobile, steamer, building, nuclear energy, electric power, electronics and daily lifes, be widely applied [Tu Hailing chief editor. non-ferrous metal progress (the 7th volume) [M]. Changsha: publishing house of Zhongnan Polytechnic Univ, [1995].
The conventional production methods of bimetallic stratiform composite wire mainly comprises that rolling is compound, extrusion cladding, casting are compound, hot-dip and plating etc., all brought into play to a certain extent positive role, in the preparation of some bimetallic stratiform composite wires, be applied.But, these traditional bimetallic stratiform composite wire manufacturing process still exist shortcoming and defect separately, and quality and performance large such as equipment investment, that compound interface is second-rate, cladding ratio is difficult to accurate control, composite wire is unstable and be difficult to meet the problems such as instructions for use improve constantly.
Sleeve drawing method is to prepare the another kind of conventional method of bimetallic stratiform composite wire, by utilizing the dissimilar metal rod base of metal pipe billet jacket corresponding size, make jacket composite blank, through room temperature drawing, obtain the bimetallic stratiform composite wire that interface is mechanical bond, and then carry out after long period diffusion annealing processing, obtain plied timber along circumferential and longitudinal equally distributed bimetallic stratiform composite wire.But traditional sleeve hubbing also exists that the diffusion annealing time is long, energy resource consumption is large, the bond quality of compound interface is difficult to control, interface diffusion layer is thicker, interface easily generates intermetallic compound; Owing to being room temperature drawing, large, the plastic deformation difficult coordination of preliminary work hardening rate difference between two kinds of metals, two kinds of metals are difficult to deform in same pace, drawing is easily broken, lumber recovery is low, it is large that cladding ratio is accurately controlled difficulty, the quality and performance of product is difficult to meet instructions for use, and is unfavorable for preparing the problems such as the following fine bimetallic stratiform composite wire of diameter 1mm.
Therefore, urgently develop a kind of high efficiency of the high-quality bimetallic stratiform composite wire of the accurate control of cladding ratio and interface quality excellence, energy-saving and cost-reducing, low-cost production method of obtaining.
Summary of the invention
The present invention adopts the treated metal of inner surface (hereinafter to be referred as " plied timber ") pipe jacket surface treated dissimilar metal (hereinafter to be referred as " core metal ") bar, carry out at ambient temperature single pass drawing compound (hereinafter to be referred as " sleeve pipe is compound cold drawn in advance ") in advance, obtain pre-bimetal composite stratiform recombination line base (hereinafter to be referred as " pre-recombination line base "), then pre-recombination line base is heated, make the temperature of pre-recombination line base reach the required temperature of follow-up drawing (hereinafter to be referred as " drawing temperature "), then make pre-recombination line base pass through heat insulation mould, carry out single pass or multi pass drawing (hereinafter to be referred as " temperature control drawing ") under uniform temperature, between temperature control drawing passes, can carry out single pass or the drawing of multi-pass room temperature, then carry out room temperature finish draw, can carry out as required subsequent heat treatment, prepare high-quality bimetallic stratiform composite wire.At room temperature to the surface of the inner surface of plied timber pipe and core metal bar clean, the processing such as polishing, and adopt plied timber pipe jacket core metal bar; Then, carry out the room temperature single pass drawing of certain deformation extent, the interface to be composite realization of plied timber and core metal is fitted tightly, obtain pre-recombination line base, be conducive to greatly reduce the front required heating-up temperature of follow-up temperature control drawing, shorten the heat time, the air between eliminating interface is to prevent that compound interface is oxidized; Then pre-recombination line base is carried out to online or off-line Fast Heating, pre-recombination line base is rapidly heated to the required drawing temperature of follow-up temperature control drawing, guaranteeing in heating process that pre-recombination line base occurs softening time, only there is Elements Diffusion and obtains the diffusion layer of desired thickness and do not generate intermetallic compound in its compound interface; Finally by pre-recombination line base through being heated and temperature remains on the mould of drawing temperature, pre-recombination line base temperature when entering mould that assurance is heated to drawing temperature can not decline suddenly, carry out smoothly single pass or the drawing of multi-pass aximal deformation value temperature control simultaneously, guarantee further deformation bonding, promote the atom generation diffusion of compound interface place metallic element to realize effective metallurgical binding; Between temperature control drawing passes, increase room temperature drawing passes is in order to carry out the accuracy controlling of cladding ratio in good time; Room temperature finish draw is conducive to obtain excellent surface quality and required size and performance, prepares high-quality bimetallic stratiform composite wire; Subsequent heat treatment is in order to meet the serviceability requirement of bimetallic stratiform composite wire.On this basis, compound cold drawn in advance by solving sleeve pipe, temperature control drawing, when the compatibility of deformation between room temperature finish draw and temperature control drawing, the temperature of pre-recombination line base and mould is controlled, the Proper Match of overall process technological parameter and the problems such as accurate control of cladding ratio, develop a kind of by metal pipe billet jacket dissimilar metal bar, the room temperature passes of drawing that places an order is compound in advance, Fast Heating, the drawing forming method of the bimetallic stratiform composite wire that the metallurgical compound and single pass of single pass or the drawing of multi-pass temperature control or multi-pass room temperature finish draw combine, changes traditional rolling compound, extrusion cladding, cast compound, hot-dip, the equipment investment that the bimetallic stratiform composite wire preparation methods such as plating and sleeve drawing exist is large, between bimetallic, coordinate large plastometric set difficulty, compound interface is second-rate, cladding ratio is difficult to accurate control, the quality and performance of composite wire is unstable, be difficult to meet the instructions for use improve constantly, and cannot for difficulty processing or interface, easily generate the compound deficiency that waits of intermetallic compound metal, realize high efficiency, energy-saving and cost-reducing, the objects such as low-cost production high-quality bimetallic stratiform composite wire.
A bimetallic stratiform composite wire drawing forming method, comprises the steps:
(1) blank surface is processed: at room temperature grinding process is carried out on the inner surface of the plied timber pipe after effects on surface cleaning and the surface of core metal bar;
(2) jacket is compound: at room temperature adopt plied timber pipe jacket core metal bar, obtain jacket composite blank;
(3) room temperature is cold drawn in advance: jacket composite blank is carried out to pointing, carry out subsequently room temperature single pass sleeve pipe compound cold drawn in advance, realize compoundly in advance, drawing deformation rate is 5%～30%, obtains pre-recombination line base;
(4) pre-recombination line base pointing: pre-recombination line base is carried out to pointing, polishing;
(5) Fast Heating: the pre-recombination line base after pointing is put into off-line resistance furnace that stove temperature reached drawing temperature and heat and be incubated 3～5min, or adopt off-line or online current flow heats device or induction heating apparatus, in 2～10s, the pre-recombination line base after pointing is heated to drawing temperature, mould also being heated and keeps its temperature is simultaneously drawing temperature;
(6) temperature control drawing: and then the pre-recombination line base after Fast Heating is passed to the mould that heats and be incubated, carry out single pass or the drawing of multi-pass temperature control, drawing passes deformation rate is 4%～60%, recombination line base in the middle of obtaining;
(7) room temperature finish draw: continue the middle recombination line base after temperature control drawing to carry out single pass or multi-pass room temperature finish draw, drawing passes deformation rate is 2%～40%, prepares high-quality bimetallic stratiform composite wire.
Described metal can be simple metal, alloy or metallic composite, is annealed state or as cast condition.
Described plied timber and described core metal are dissimilar metal.
The diameter of described core metal bar is 0.5～0.99 times of described plied timber pipe internal diameter.
Described drawing temperature is 0.2～0.9 times of fusing point (unit is K) of the minimum metal of fusing point in described plied timber and described core metal.
Between the part passage of described temperature control drawing, the needs according to cladding ratio regulation and control, can increase the room temperature drawing of single pass or multi-pass, and room temperature drawing passes deformation rate is 4%～40%.
Can to described bimetallic stratiform composite wire, carry out subsequent heat treatment as required, heat treatment temperature is 0.2～0.9 times of fusing point (unit is K) of the minimum metal of fusing point in described plied timber and described core metal, and heat treatment time is 1 ~ 10min.
Compare with existing bimetallic stratiform composite wire preparation method, the present invention is by metal pipe billet jacket dissimilar metal bar, the room temperature passes of drawing that places an order is compound in advance, Fast Heating, single pass or the drawing of multi-pass temperature control are metallurgical compoundly to combine with single pass or multi-pass room temperature finish draw, realizes the coordination large plastometric set of plied timber and core metal, prepares high-quality bimetallic stratiform composite wire, has compound interface bond strength high, diffusion layer is thin, plied timber is along circumferentially and being longitudinally evenly distributed, interface is difficult for generating intermetallic compound, cladding ratio is easy to accurate control, without drawing intermediate annealing, preparation section is simple, save the energy, without potential safety hazard, product size precision is high, specification is flexible, the combination of raw materials free degree is large, compatibility of deformation is good, amount of plastic deformation is large, lumber recovery is high, equipment needed thereby is few, invest low, production cost is not high, product quality and performances are excellent and be easy to prepare the advantages such as the following fine bimetallic stratiform composite wire of diameter 1mm, are particularly suitable for the preparation that compound interface easily generates bimetallic stratiform composite wire and the unmanageable bimetallic stratiform composite wire of intermetallic compound.
Accompanying drawing explanation
Fig. 1 is bimetallic stratiform composite wire preparation technology flow chart of the present invention.
The specific embodiment
Below in conjunction with embodiment, the present invention is specifically described; be necessary to be pointed out that at this present embodiment is only used to further illustrate the present invention; can not be interpreted as limiting the scope of the invention, the those of skill in the art in this field can make some nonessential improvement and adjustment according to the content of the invention described above.
embodiment 1:the copper-clad copper-nickel alloy stratiform composite wire preparation of diameter of phi 4.0mm, cladding ratio 35%
At room temperature grinder buffing processing is carried out on the inner surface of the multiple layer T2 fine copper pipe of the annealed state after effects on surface cleaning (size Φ 8 * 1mm) and the surface of annealed state core CuNi44Mn1 copper-nickel alloy bar (diameter of phi 6mm); At room temperature adopt multiple layer T2 fine copper pipe jacket core CuNi44Mn1 copper-nickel alloy bar, obtain jacket composite blank; Jacket composite blank is carried out to pointing, carry out subsequently the compound pre-cold drawn realization of single pass sleeve pipe compound in advance, drawing deformation rate is 12%, obtains pre-recombination line base; Pre-recombination line base is carried out to pointing; Then the off-line resistance furnace of pre-recombination line base being put into stove temperature and be 400 ℃ heats and is incubated 5min, makes its temperature reach fast 400 ℃ of drawing temperature, and mould also being heated simultaneously and keeping its temperature is 400 ℃ of drawing temperature; And then the pre-recombination line base after Fast Heating is passed to the mould that heats and be incubated, carry out 4 passage temperature control drawings, drawing passes deformation rate is 16%～26.5%; Carry out on this basis 1 passage room temperature finish draw, drawing deformation rate is 17.3%; Prepare diameter of phi 4.0mm, cladding ratio accurately control be 35%, the high-quality copper-clad copper-nickel alloy stratiform composite wire of interface quality excellence.
embodiment 2:the copper-clad copper-nickel alloy stratiform composite wire preparation of diameter of phi 0.3mm, cladding ratio 29%
At room temperature grinder buffing processing is carried out on the inner surface of the multiple layer T2 fine copper pipe of the annealed state after effects on surface cleaning (size Φ 8 * 1mm) and the surface of annealed state core CuNi44Mn1 copper-nickel alloy bar (diameter of phi 6mm); At room temperature adopt multiple layer T2 fine copper pipe jacket core CuNi44Mn1 copper-nickel alloy bar, obtain jacket composite blank; Jacket composite blank is carried out to pointing, carry out subsequently the compound pre-cold drawn realization of single pass sleeve pipe compound in advance, drawing deformation rate is 12%, obtains pre-recombination line base; Pre-recombination line base is carried out to pointing; Then the off-line resistance furnace of pre-recombination line base being put into stove temperature and be 300 ℃ heats and is incubated 3min, makes its temperature reach fast 300 ℃ of drawing temperature, and mould also being heated simultaneously and keeping its temperature is 300 ℃ of drawing temperature; And then the pre-recombination line base after Fast Heating is passed to the mould that heats and be incubated, carry out 5 passage temperature control drawings, drawing passes deformation rate is 16%～27%; Carry out on this basis 24 passage room temperature finish draws, drawing passes deformation rate is 2%～18%; Prepare diameter of phi 0.3mm, cladding ratio accurately control be 29%, the high-quality copper-clad copper-nickel alloy stratiform composite wire of interface quality excellence; The follow-up heat treatment of carrying out 850 ℃ * 3min.
embodiment 3:the copper-clad copper-nickel alloy stratiform composite wire preparation of diameter of phi 0.05mm, cladding ratio 30%
At room temperature High Rotation Speed steel brush grinding process is carried out on the inner surface of the multiple layer T2 fine copper pipe of the annealed state after effects on surface cleaning (size Φ 8 * 1mm) and the surface of annealed state core CuNi44Mn1 copper-nickel alloy bar (diameter of phi 6mm); At room temperature adopt multiple layer T2 fine copper pipe jacket core CuNi44Mn1 copper-nickel alloy bar, obtain jacket composite blank; Jacket composite blank is carried out to pointing, carry out subsequently the compound pre-cold drawn realization of single pass sleeve pipe compound in advance, drawing deformation rate is 12%, obtains pre-recombination line base; Pre-recombination line base is carried out to pointing; Then adopt online induction heating apparatus in 5s, to quickly heat up to 600 ℃ of drawing temperature pre-recombination line base, mould also being heated simultaneously and keeping its temperature is 600 ℃ of drawing temperature; And then the pre-recombination line base after Fast Heating is passed to the mould that heats and be incubated, carry out 12 passage temperature control drawings, temperature control drawing passes deformation rate is 4%～33%, between the first passage and the temperature control drawing of the second passage, the 8th passage and the 9th passage, the tenth passage and the tenth a time, carried out respectively the room temperature drawing of 2 passages, room temperature drawing passes deformation rate is 4% and 19% simultaneously; Carry out on this basis 23 passage room temperature finish draws, drawing passes deformation rate is 11%～36%; Prepare diameter of phi 0.05mm, cladding ratio accurately control be 30%, the high-quality copper-clad copper-nickel alloy stratiform composite wire of interface quality excellence.
embodiment 4:the copper cover aluminum stratiform composite wire preparation of diameter of phi 2.7mm, cladding ratio 28%
At room temperature steel brush grinding process is carried out on the inner surface of the multiple layer T2 fine copper pipe of the annealed state after effects on surface cleaning (size Φ 6 * 0.5mm) and the surface of annealed state core 1050 fine aluminium bars (diameter of phi 5mm); At room temperature adopt multiple layer T2 fine copper pipe jacket core 1050 fine aluminium bars, obtain jacket composite blank; Jacket composite blank is carried out to pointing, carry out subsequently the compound pre-cold drawn realization of single pass sleeve pipe compound in advance, drawing deformation rate is 16%, obtains pre-recombination line base; Pre-recombination line base is carried out to pointing; Then the off-line resistance furnace of pre-recombination line base being put into stove temperature and be 350 ℃ heats and is incubated 5min, makes it reach fast 350 ℃ of drawing temperature, and mould also being heated simultaneously and keeping its temperature is 350 ℃ of drawing temperature; And then the pre-recombination line base after Fast Heating is passed to the mould that heats and be incubated, carry out 3 passage temperature control drawings, drawing passes deformation rate is 23%～25%; Carry out on this basis 3 passage room temperature finish draws, drawing passes deformation rate is 9.5%～30.2%; Prepare diameter of phi 2.7mm, cladding ratio accurately control be 28%, the coated aluminium laminated composite wire of high-quality copper of interface quality excellence.
embodiment 5:the copper-clad 304 stainless steel stratiform composite wire preparations of diameter of phi 1.0mm, cladding ratio 25%
At room temperature steel brush grinding process is carried out on the inner surface of the multiple layer T2 fine copper pipe of the annealed state after effects on surface cleaning (size Φ 8 * 1mm) and the surface of annealed state core 304 stainless steel barses (diameter of phi 6mm); At room temperature adopt multiple layer T2 fine copper pipe jacket core 304 stainless steel barses, obtain jacket composite blank; Jacket composite blank is carried out to pointing, carry out subsequently the compound pre-cold drawn realization of single pass sleeve pipe compound in advance, drawing deformation rate is 12%, obtains pre-recombination line base; Pre-recombination line base is carried out to pointing; Then the off-line resistance furnace of pre-recombination line base being put into stove temperature and be 800 ℃ heats and is incubated 5min, makes it reach fast 800 ℃ of drawing temperature, and mould also being heated simultaneously and keeping its temperature is 800 ℃ of drawing temperature; And then the pre-recombination line base after Fast Heating is passed to the mould that heats and be incubated, carry out 9 passage temperature control drawings, drawing passes deformation rate is 17.3%～30.6%, between the 6th passage and the temperature control drawing of the 7th passage, carried out the room temperature drawing of 3 passages, room temperature drawing passes deformation rate is 12.4%～25.7% simultaneously; Carry out on this basis 6 passage room temperature finish draws, drawing passes deformation rate is 12.1%～17.4%; Prepare diameter of phi 1.0mm, cladding ratio accurately control be 25%, the high-quality copper-clad 304 stainless steel stratiform composite wires of interface quality excellence.
embodiment 6:the copper-clad 45# carbon steel stratiform composite wire preparation of diameter of phi 2.05mm, cladding ratio 30%
At room temperature steel brush grinding process is carried out on the inner surface of the multiple layer T2 fine copper pipe of the annealed state after effects on surface cleaning (size Φ 8 * 1mm) and the surface of annealed state core 45# carbon steel bar (diameter of phi 6mm); At room temperature adopt multiple layer T2 fine copper pipe jacket core 45# carbon steel bar, obtain jacket composite blank; Jacket composite blank is carried out to pointing, carry out subsequently the compound pre-cold drawn realization of single pass sleeve pipe compound in advance, drawing deformation rate is 12%, obtains pre-recombination line base; Pre-recombination line base is carried out to pointing; Then adopt high-frequency induction heating apparatus in 5s, to quickly heat up to 850 ℃ of drawing temperature pre-recombination line base, mould also being heated simultaneously and keeping its temperature is 850 ℃ of drawing temperature; And then the pre-recombination line base after Fast Heating is passed to the mould that heats and be incubated, carry out 7 passage temperature control drawings, drawing passes deformation rate is 6.8%～29.5%, between the 5th passage and the temperature control drawing of the 6th passage, carried out the room temperature drawing of 2 passages, room temperature drawing passes deformation rate is 17.3% and 23.5% simultaneously; Carry out on this basis 3 passage room temperature finish draws, drawing passes deformation rate is 13.3%～32.8%; Prepare diameter of phi 2.05mm, cladding ratio accurately control be 30%, the high-quality copper-clad 45# carbon steel stratiform composite wire of interface quality excellence.
Claims (7)
1. a bimetallic stratiform composite wire drawing forming method, is characterized in that, comprises the steps:
(1) blank surface is processed: at room temperature grinding process is carried out on the inner surface of the plied timber pipe after effects on surface cleaning and the surface of core metal bar;
(2) jacket is compound: at room temperature adopt plied timber pipe jacket core metal bar, obtain jacket composite blank;
(3) room temperature is cold drawn in advance: jacket composite blank is carried out to pointing, carry out subsequently room temperature single pass sleeve pipe compound cold drawn in advance, realize compoundly in advance, drawing deformation rate is 5%～30%, obtains pre-recombination line base;
(4) pre-recombination line base pointing: pre-recombination line base is carried out to pointing, polishing;
(5) Fast Heating: the pre-recombination line base after pointing is put into off-line resistance furnace that stove temperature reached drawing temperature and heat and be incubated 3～5min, or adopt off-line or online current flow heats device or induction heating apparatus, in 2～10s, the pre-recombination line base after pointing is heated to drawing temperature, mould also being heated and keeps its temperature is simultaneously drawing temperature;
(6) temperature control drawing: and then the pre-recombination line base after Fast Heating is passed to the mould that heats and be incubated, carry out single pass or the drawing of multi-pass temperature control, drawing passes deformation rate is 4%～60%, recombination line base in the middle of obtaining;
(7) room temperature finish draw: continue the middle recombination line base after temperature control drawing to carry out single pass or multi-pass room temperature finish draw, drawing passes deformation rate is 2%～40%, prepares high-quality bimetallic stratiform composite wire.
2. a kind of bimetallic stratiform composite wire drawing forming method as claimed in claim 1, is characterized in that described metal is simple metal, alloy or metallic composite, is annealed state or as cast condition.
3. a kind of bimetallic stratiform composite wire drawing forming method as claimed in claim 1, is characterized in that described plied timber and described core metal are dissimilar metal.
4. a kind of bimetallic stratiform composite wire drawing forming method as claimed in claim 1, the diameter that it is characterized in that described core metal bar is 0.5～0.99 times of described plied timber pipe internal diameter.
5. a kind of bimetallic stratiform composite wire drawing forming method as claimed in claim 1, is characterized in that described drawing temperature is 0.2～0.9 times of fusing point (unit is K) of the minimum metal of fusing point in described plied timber and described core metal.
6. a kind of bimetallic stratiform composite wire drawing forming method as claimed in claim 1, is characterized in that between the part passage of described temperature control drawing, increases the room temperature drawing of single pass or multi-pass, and room temperature drawing passes deformation rate is 4%～40%.
7. a kind of bimetallic stratiform composite wire drawing forming method as claimed in claim 1, it is characterized in that described bimetallic stratiform composite wire to carry out subsequent heat treatment, heat treatment temperature is 0.2～0.9 times of fusing point (unit is K) of the minimum metal of fusing point in described plied timber and described core metal, and heat treatment time is 1～10min.
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| CN105499543A (en) * | 2015-12-23 | 2016-04-20 | 上海交通大学 | Method for preparing double-metal composite material by solid-liquid combination of solid-state copper material and drawing composition |
| CN105499925A (en) * | 2015-12-23 | 2016-04-20 | 上海交通大学 | Method for preparing bimetal composite material through solid and liquid compounding and drawing combination of solid titanium |
| CN105537859A (en) * | 2015-12-23 | 2016-05-04 | 上海交通大学 | Method for preparing duplex metal composite material through solid-liquid compounding and drawing combination of solid steel |
| CN105772612A (en) * | 2016-05-13 | 2016-07-20 | 北京科技大学 | Preparation method for gold-cladding copper composite wire |
| CN105895268A (en) * | 2016-05-24 | 2016-08-24 | 苏州创浩新材料科技有限公司 | Preparation technology of copper-zinc-aluminum three-layer composite wire |
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| CN105499543A (en) * | 2015-12-23 | 2016-04-20 | 上海交通大学 | Method for preparing double-metal composite material by solid-liquid combination of solid-state copper material and drawing composition |
| CN105499925A (en) * | 2015-12-23 | 2016-04-20 | 上海交通大学 | Method for preparing bimetal composite material through solid and liquid compounding and drawing combination of solid titanium |
| CN105537859A (en) * | 2015-12-23 | 2016-05-04 | 上海交通大学 | Method for preparing duplex metal composite material through solid-liquid compounding and drawing combination of solid steel |
| CN105772612A (en) * | 2016-05-13 | 2016-07-20 | 北京科技大学 | Preparation method for gold-cladding copper composite wire |
| CN105895268B (en) * | 2016-05-24 | 2017-11-10 | 苏州创浩新材料科技有限公司 | A kind of three layers of compound wire preparation technology of copper zinc-aluminium |
| CN105895268A (en) * | 2016-05-24 | 2016-08-24 | 苏州创浩新材料科技有限公司 | Preparation technology of copper-zinc-aluminum three-layer composite wire |
| CN106881372A (en) * | 2017-01-23 | 2017-06-23 | 北京航空航天大学 | A kind of preparation method of high alumina zinc-aluminium puppet alloy bar material and silk material |
| CN107579010A (en) * | 2017-07-31 | 2018-01-12 | 昆明贵金属研究所 | It is a kind of to improve the compound bonding wire coating of gold and silver and the method for core adhesion |
| CN107579010B (en) * | 2017-07-31 | 2020-06-30 | 昆明贵金属研究所 | Method for improving binding force of gold-silver composite bonding wire coating and core material |
| CN109909479A (en) * | 2018-12-27 | 2019-06-21 | 北京科技大学 | A kind of bimetallic composite wire material short flow process |
| CN112170511A (en) * | 2020-08-10 | 2021-01-05 | 西安诺博尔稀贵金属材料股份有限公司 | Preparation method of gold alloy coated copper composite wire |
| CN112170511B (en) * | 2020-08-10 | 2022-08-19 | 西安诺博尔稀贵金属材料股份有限公司 | Preparation method of gold alloy coated copper composite wire |
| CN113477712A (en) * | 2021-07-30 | 2021-10-08 | 安徽工业大学 | Preparation process of multilayer metal composite belt |
| CN113477712B (en) * | 2021-07-30 | 2023-12-05 | 安徽工业大学 | Preparation process of multilayer metal composite belt |
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