CN107553060A - A kind of manufacture method of copper rustless steel double-metal composite contact matrix material - Google Patents
A kind of manufacture method of copper rustless steel double-metal composite contact matrix material Download PDFInfo
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- CN107553060A CN107553060A CN201710735848.2A CN201710735848A CN107553060A CN 107553060 A CN107553060 A CN 107553060A CN 201710735848 A CN201710735848 A CN 201710735848A CN 107553060 A CN107553060 A CN 107553060A
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Abstract
A kind of manufacture method of copper rustless steel double-metal composite contact matrix material, rolling copper rustless steel double-metal composite contact matrix material is combined together and then carries out by way of copper coin embryo and stainless steel plate embryo are used into explosive welding.The addition of stainless steel layer in the present invention, relative to the copper contact of single material, improve intensity and modulus of elasticity, simultaneously, to copper and the reasonable selection of stainless steel thickness ratio, contact matrix material is ensure that on the basis of with certain modulus of elasticity, remains to keep higher conductance.
Description
Technical field
The present invention relates to a kind of matrix material preparation method in electric connector field, more particularly, to a kind of copper-stainless-steel
The manufacture method of bimetallic composite contact matrix material.
Background technology
China's electronics and IT industry is huge, and to the demand of connector, also position is at the forefront in the world.For the weight of connector
Want part --- for contact, most important performance requirement is that have relatively low system resistance rate, and its major influence factors has
Contact resistance at the volume resistance and contact interface of material.This requires contact matrix material meeting the same of electric conductivity
When have again it is certain, make interface be in close contact elastoresistance deformability.Contact uses fine copper material, although conductance compared with
It is good, but its modulus of elasticity is small, and contact resistance is big, and system resistance value is big on the contrary；Some conventional connector contacts such as copper zinc
Although the copper alloy modulus of elasticity such as metal, brass, phosphor bronze, corronil is relatively large, its conductance typically mostly exists
50%IACS（20℃）Hereinafter, system resistance is unsatisfactory；In recent years, the U.S. and Germany develop the high-performance copper conjunction of a new generation
Gold, combination property is relatively preferable, but delivery cycle is grown, expensive.
The content of the invention
The purpose of the present invention is to solve the copper alloy that connector contact uses, although conductance is preferable, it is elastic
A kind of the problem of modulus is small, there is provided manufacture method of copper-stainless-steel bimetallic composite contact matrix material.
To solve the deficiency of above-mentioned technical problem, used technical scheme is the present invention：
A kind of manufacture method of copper-stainless-steel bimetallic composite contact matrix material, comprises the following steps：
Step 1: take the copper coin embryo that thickness of slab is 2 ~ 7mm and the stainless steel plate embryo that thickness of slab is 1 ~ 3mm standby, copper coin embryo and stainless steel
The thickness ratio of plate embryo is 1.5-2.8；
Step 2: taking the copper coin embryo determined in step 1 to be placed on smooth sandy subgrade, height is then taken as 3~8mm's
Copper sheet supporter, copper sheet supporter is uniformly placed in the upper surface of copper coin embryo, copper sheet supporter by 60 ~ 100mm spacing distances
It is not more than the one thousandth of copper coin embryo area with copper coin embryo contact area sum；
Step 3: the stainless steel plate embryo in step 1 is taken to be laid on the copper sheet supporter in step 2 after installation, after arranging not
Copper coin embryo is completely covered in projection of the steel plate embryo on copper coin embryo of becoming rusty；
Step 4: the explosive layer that web is 20 ~ 40mm is uniformly laid in the stainless steel plate embryo upper surface in step 3, in explosive layer
8# industrial detonators and ignition charge are buried in one end termination, and energy caused by explosive makes stainless steel plate embryo accelerate downwards, and with
Copper coin embryo high velocity impact, form the ply-metal embryo of strong bonded；
Step 5: ply-metal embryo in step 4 is rolled：
Cold rolling is carried out to ply-metal embryo, pass reduction is 15% ~ 30%；In the operation of rolling, whenever front and rear some passages
When accumulating working modulus more than 35 ~ 50%, stop rolling, made annealing treatment, annealing process is：Heating-up temperature is 650 ~ 800 DEG C,
Soaking time is 5 min/mm, air cooling；When gross thickness is rolled down to 2 ~ 2.5mm, ply-metal embryo one end after rolling
Termination soldering stainless steel towing plate, the ply-metal embryo for being welded with stainless steel towing plate is continued to be rolled down to final required thickness
Size, towing plate is cut away, stainless steel layer and layers of copper surface are processed by shot blasting using the page wheel of 80 mesh, completion copper-stainless
The preparation of bimetal copper-steel composite contact matrix material.
Explosive in described step four in explosive layer uses using expanded ammonium nitrate as host and adds the powdery mixing of salt
Explosive, mixed proportion are expanded ammonium nitrate 60 ~ 80%, salt 20 ~ 40%, and explosive density is 0.6 ~ 0.7 g/cm3, explosion velocity be 1900 ~
2200m/s。
The thickness of towing plate is 0.7 ~ 0.8mm in described step five, and bimetallic is compound after the width of towing plate and rolling
The stand out of stainless steel layer in plate embryo is not more than 5mm, and the length dimension of towing plate is not less than 150mm.
The beneficial effects of the invention are as follows：1st, the addition of stainless steel layer, relative to the copper contact of single material, improve strong
Degree and modulus of elasticity, meanwhile, to copper and the reasonable selection of stainless steel thickness ratio, it ensure that contact matrix material with certain
On the basis of modulus of elasticity, remain to keep higher conductance；
2nd, copper and the firm metallurgical binding of stainless steel are realized using explosion weld process, ensure that and be more than in follow-up general working rate
In 90% operation of rolling, combination interface will not be peeled off；Test shows：Interface contact resistance is minimum after rolling, has substantially no effect on and leads
Electric rate；
3rd, the measure such as annealing in good time in the operation of rolling and welding towing plate, solves what is be likely to occur in cold-rolled process
By stainless steel process hardenability band brittleness problems and the winding up roller problem that difference brings is plastically deformed by bimetallic, ensure that rolling
Process is smoothed out；
4. using process technology scheme of the present invention, the copper-stainless-steel double metallic composite material modulus of elasticity of manufacture is not less than
140Gpa, conductance are not less than 67%IACS（20℃）, there is preferable combination property, in space flight, automobile etc. to connector performance
It is required that there is certain application value in higher field.
Brief description of the drawings
Fig. 1 is the simple layout drawing of explosive welding of the present invention.
Fig. 2 is copper-stainless-steel ply-metal embryo schematic diagram.
Fig. 3 is copper-stainless-steel ply-metal embryo welding towing plate schematic diagram.
Diagram mark：1st, sandy subgrade, 2, copper coin embryo, 3, copper sheet supporter, 4, stainless steel plate embryo, 5, explosive, 6, thunder
Pipe, H, explosive thickness, S, bimetallic spacing；7th, stainless steel layer；8th, layers of copper；9th, weld seam；10th, towing plate.
Embodiment
Shown in figure, embodiment is as follows：
Copper coin embryo material is TU1, and stainless steel plate embryo material is S30408.
A kind of manufacture method of copper-stainless-steel bimetallic composite contact matrix material, comprises the following steps：
Step 1: take the copper coin embryo that thickness of slab is 4mm and the stainless steel plate embryo that thickness of slab is 2mm standby, copper coin embryo and stainless steel plate embryo
Thickness ratio be 2；
Step 2: illustrating with reference to accompanying drawing 1, the copper coin embryo 2 in step 1 is taken to be placed on smooth sandy subgrade 1, in copper coin embryo 2
Upper surface uniformly put copper sheet supporter 3 by 80mm spacing distances, the height of copper sheet supporter is bimetallic interval S, S controls
System is in the range of 4 ~ 5mm；Copper sheet supporter is not more than the one thousandth of copper coin embryo area with copper coin embryo contact area sum；
Step 3: taking the stainless steel plate embryo 4 in step 1 to be laid on copper sheet supporter 3, stainless steel plate embryo is in copper coin after arranging
Copper coin embryo is completely covered in projection on embryo；
Step 4: uniformly laying the explosive layer 5 that web H is 30 ~ 35mm in the upper surface of stainless steel plate embryo 4, explosive layer 5 is used with swollen
Change ammonium nitrate as host and add the powdery composite explosives of salt, mixed proportion is expanded ammonium nitrate 60 ~ 80%, salt 20 ~ 40%, explosive
Density is 0.6 ~ 0.7 g/cm3, the control of its explosion velocity is in the range of 1900 ~ 2200m/s；8# works are buried in one end termination of explosive layer 5
Industry detonator 6,8# industrial detonators 6 are ignited, energy caused by explosive makes stainless steel plate accelerate downwards, and with certain impingement angle
With copper coin high velocity impact, ply-metal embryo that form strong bonded, that gross thickness is 6mm.
Step 5: using 200 tons of drag over mills, to the double gold of copper-stainless-steel that gross thickness in step 4 is 6mm
Belong to composite plate embryo and carry out cold rolling, pass reduction is 15% ~ 30%；When gross thickness is rolled down to 3.7mm, stopping is rolled, annealed
Processing, annealing process are：Heating-up temperature is 650 ~ 700 DEG C, and soaking time is 5 min/mm；Continue to roll after air cooling, work as total thickness
Degree is rolled down to 2.1mm, stops rolling, according to shown in Fig. 3, the soldering stainless steel towing plate 10 in milled sheet embryo one end termination, draws
The thickness of plate 10 is 0.7mm, length dimension 150mm, and width dimensions are identical with milled sheet embryo；Then carry out annealing for second
Processing, annealing process are：Heating-up temperature is 750 ~ 800 DEG C, and soaking time is 5 min/mm；Continue to roll after air cooling；Work as total thickness
Degree is rolled down to 1.1mm, stops rolling, carries out third time annealing, and annealing process is：Heating-up temperature is 750 ~ 800 DEG C, insulation
Time is 5 min/mm；Continue to roll after air cooling, gross thickness is rolled down to 0.6mm, terminates rolling；Towing plate is cut away, using 80
The polishing that purpose page wheel is carried out to stainless steel layer and layers of copper surface, is completed needed for copper-stainless-steel bimetallic composite contact
The preparation of raw matrix materials.
Technical scheme and embodiment cited by the present invention and non-limiting, with the technical scheme cited by the present invention and
Embodiment is equivalent or effect same approach is all in the range of the present invention protects.
Claims (3)
- A kind of 1. manufacture method of copper-stainless-steel bimetallic composite contact matrix material, it is characterised in that：Including following step Suddenly：Step 1: take the copper coin embryo that thickness of slab is 2 ~ 7mm and the stainless steel plate embryo that thickness of slab is 1 ~ 3mm standby, copper coin embryo and stainless steel The thickness ratio of plate embryo is 1.5-2.8；Step 2: taking the copper coin embryo determined in step 1 to be placed on smooth sandy subgrade, height is then taken as 3~8mm's Copper sheet supporter, copper sheet supporter is uniformly placed in the upper surface of copper coin embryo, copper sheet supporter by 60 ~ 100mm spacing distances It is not more than the one thousandth of copper coin embryo area with copper coin embryo contact area sum；Step 3: the stainless steel plate embryo in step 1 is taken to be laid on the copper sheet supporter in step 2 after installation, after arranging not Copper coin embryo is completely covered in projection of the steel plate embryo on copper coin embryo of becoming rusty；Step 4: the explosive layer that web is 20 ~ 40mm is uniformly laid in the stainless steel plate embryo upper surface in step 3, in explosive layer 8# industrial detonators and ignition charge are buried in one end termination, and energy caused by explosive makes stainless steel plate embryo accelerate downwards, and with Copper coin embryo high velocity impact, form the ply-metal embryo of strong bonded；Step 5: ply-metal embryo in step 4 is rolled：Cold rolling is carried out to ply-metal embryo, pass reduction is 15% ~ 30%；In the operation of rolling, whenever front and rear some passages When accumulating working modulus more than 35 ~ 50%, stop rolling, made annealing treatment, annealing process is：Heating-up temperature is 650 ~ 800 DEG C, Soaking time is 5 min/mm, air cooling；When gross thickness is rolled down to 2 ~ 2.5mm, ply-metal embryo one end after rolling Termination soldering stainless steel towing plate, the ply-metal embryo for being welded with stainless steel towing plate is continued to be rolled down to required thickness gauge It is very little, towing plate is cut away, stainless steel layer and layers of copper surface are processed by shot blasting using the page wheel of 80 mesh, completes copper-stainless-steel The preparation of bimetallic composite contact matrix material.
- 2. a kind of manufacture method of copper-stainless-steel bimetallic composite contact matrix material according to claim 1, it is special Sign is：Explosive in described step four in explosive layer use using expanded ammonium nitrate as host and add salt powdery mixing it is fried Medicine, mixed proportion are expanded ammonium nitrate 60 ~ 80%, salt 20 ~ 40%, and explosive density is 0.6 ~ 0.7 g/cm3, explosion velocity be 1900 ~ 2200m/s。
- 3. a kind of manufacture method of copper-stainless-steel bimetallic composite contact matrix material according to claim 1, it is special Sign is：The thickness of towing plate is 0.7 ~ 0.8mm in described step five, ply-metal after the width of towing plate and rolling The stand out of stainless steel layer in embryo is not more than 5mm, and the length dimension of towing plate is not less than 150mm.
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| CN201710735848.2A CN107553060A (en) | 2017-08-24 | 2017-08-24 | A kind of manufacture method of copper rustless steel double-metal composite contact matrix material |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109454322A (en) * | 2018-12-06 | 2019-03-12 | 南昌大学 | Laying method is spelled in modularization explosive welding explosive loading unit and its modularization powder charge |
| CN109894734A (en) * | 2019-04-10 | 2019-06-18 | 南京昭邦金属复合材料有限公司 | Super thick degree is than stainless steel-copper composite plate explosion welding method |
| CN113352031A (en) * | 2021-07-22 | 2021-09-07 | 汤爱国 | Production process of hot-rolled stainless steel composite plate |
| CN113524817A (en) * | 2021-07-20 | 2021-10-22 | 湖南华冉科技有限公司 | Tantalum-nickel composite board and preparation method thereof |
| CN116511471A (en) * | 2023-04-26 | 2023-08-01 | 东莞市维康汽车电子有限公司 | Preparation method of copper and stainless steel composite metal plate |
| RU2807253C1 (en) * | 2023-03-02 | 2023-11-13 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный технический университет" (ВолгГТУ) | Method for producing heat-resistant coating on surface of heat-resistant steel plate |
| CN117944330A (en) * | 2024-03-26 | 2024-04-30 | 河北万丰冶金备件有限公司 | Copper steel explosion composite board with tensile strength exceeding 230Mpa, blast furnace cooling wall and metallurgical furnace water jacket |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109454322A (en) * | 2018-12-06 | 2019-03-12 | 南昌大学 | Laying method is spelled in modularization explosive welding explosive loading unit and its modularization powder charge |
| CN109894734A (en) * | 2019-04-10 | 2019-06-18 | 南京昭邦金属复合材料有限公司 | Super thick degree is than stainless steel-copper composite plate explosion welding method |
| CN113524817A (en) * | 2021-07-20 | 2021-10-22 | 湖南华冉科技有限公司 | Tantalum-nickel composite board and preparation method thereof |
| CN113352031A (en) * | 2021-07-22 | 2021-09-07 | 汤爱国 | Production process of hot-rolled stainless steel composite plate |
| CN113352031B (en) * | 2021-07-22 | 2023-01-06 | 昆山大庚不锈钢有限公司 | Production process of hot-rolled stainless steel composite plate |
| RU2807253C1 (en) * | 2023-03-02 | 2023-11-13 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный технический университет" (ВолгГТУ) | Method for producing heat-resistant coating on surface of heat-resistant steel plate |
| CN116511471A (en) * | 2023-04-26 | 2023-08-01 | 东莞市维康汽车电子有限公司 | Preparation method of copper and stainless steel composite metal plate |
| CN117944330A (en) * | 2024-03-26 | 2024-04-30 | 河北万丰冶金备件有限公司 | Copper steel explosion composite board with tensile strength exceeding 230Mpa, blast furnace cooling wall and metallurgical furnace water jacket |
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