CN105225855B - The manufacture method and manufacturing equipment of compound silver band - Google Patents
The manufacture method and manufacturing equipment of compound silver band Download PDFInfo
- Publication number
- CN105225855B CN105225855B CN201510539620.7A CN201510539620A CN105225855B CN 105225855 B CN105225855 B CN 105225855B CN 201510539620 A CN201510539620 A CN 201510539620A CN 105225855 B CN105225855 B CN 105225855B
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- Prior art keywords
- band
- silver
- metal oxide
- copper
- siluer
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/02—Contacts characterised by the material thereof
- H01H1/04—Co-operating contacts of different material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H11/04—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
- H01H11/041—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts by bonding of a contact marking face to a contact body portion
- H01H11/042—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts by bonding of a contact marking face to a contact body portion by mechanical deformation
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Metal Rolling (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Manufacture Of Switches (AREA)
Abstract
The invention discloses the manufacture method of compound silver band and manufacturing equipment, it is related to the manufacture method and equipment of electric contact material, its method workflow is：Siluer metal oxide band, the processing of copper strips early stage>Siluer metal oxide band and copper strips heating>Silver-colored oxidized zone, copper strips are combined>Composite band is annealed>Composite band finish rolling>Composite band eliminates stress>Composite band is anti-oxidant>Composite band slitting>The steps such as composite band inspection.Compared with prior art, the beneficial effects of the invention are as follows：The extraneous contact of siluer metal oxide band discord can be allowed in heating process, it is to avoid with siluer metal oxide band reduction reaction occurs for protective atmosphere, causes the problem of siluer metal oxide is reduced reduction compound silver band performance.Siluer metal oxide band, which is put into, simultaneously is opened in the groove of copper strips and then carries out hot pressing and roll so that compound silver band combines strong higher, is combined fastness more preferable.
Description
Technical field
The present invention relates to electric contact material technical field, the system of especially a kind of siluer metal oxide-copper composite electric contact
Make method.
Background technology
Electric contact is the contact element of electric switch, instrument and meter, and it mainly undertakes connection and breaking current
Effect, its safe operation to electrical equipment has decisive role, in the material of production electric contact, silver metal oxidation
Thing (such as siller tin oxide AgSnO2, Agcdo AgCdO) material is due to preferable resistance to electrical wear, resistance fusion welding and conduction
Property, it is used widely in low-voltage electrical apparatus.Silver tin/copper oxide composite is led to by two kinds of materials of siluer metal oxide and copper
The new function material that special combination process is combined is crossed, it had both retained the main spy of siluer metal oxide and base material copper
Color, the performance not available for stock blend can be obtained by complex effect, silver had both been saved, has played the resistance to electrical wear of silver contact, and resisted again
The advantages of heat sealability and electric conductivity, mechanical performance can be improved again, be the silver-colored technology of an important section.But siluer metal oxide with
The bond strength of copper is poor, and the research emphasis in terms of silver-bearing copper composite domestic at present is that the bar of yellow gold and oxygen-free copper is answered
Close, face is combined, these are not the oxide of silver and being combined for copper substantially.Indivedual enterprises produce siluer metal oxides and copper now
Composite when the mode of production be that first the edge of siluer metal oxide plate ingot and the thick material of copper ingot two is welded with argon arc welding
Get up, then carry out method hot rolling repeatedly with hot-rolling mill under the protection of reducibility gas, in the hot rolling, silver metal oxidation
Thing can restore silver metal, silver-colored oxide content in the silver-bearing copper composite so produced with reducibility gas reaction
It is not high, while this mode of production is unable to large-scale production, the band of a segment length very little can only be processed every time, this kind is utilized
Technique is unable to Continuous maching, production：It is extremely inefficient.
The content of the invention
There is provided the manufacture method of compound silver band and manufacturing equipment, Neng Gou for deficiency of the prior art by the present invention
Allow the extraneous contact of silver metal oxidized zone discord in heating process, it is to avoid it is anti-that with silver metal oxidized zone reduction occurs for protective atmosphere
Should, cause the problem of siluer metal oxide is reduced reduction compound silver band performance.Silver metal oxidized zone, which is put into, simultaneously is opened in copper
Then carry out hot pressing in the groove of band to roll so that compound silver band combination is strong higher, is combined fastness more preferable.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals：The manufacturer of compound silver band
Method, its feature includes following steps：Step A）：Copper strips and silver metal oxidation belt surface are cleaned, its surface is removed
Greasy dirt and impurity, the groove matched with the silver metal oxidized zone is then opened up on described copper strips, subsequently to copper strips
Polishing is carried out with metal oxidation band；Step B）：The silver metal oxidized zone is put into be formed in the groove of the copper strips and treated
Band is handled, is then put into two pending bands in continuous furnace in mode stacked on top of one another, it is pending described in two
Alignd with both sides and one side that exposure has silver metal oxidized zone mutually reclines so that the silver metal oxidized zone does not contact the external world, institute
It is 550 DEG C ~ 750 DEG C to state heating-up temperature in continuous furnace, and tape running speed is to be provided with guarantor in 1.0 ~ 3.0m/min, heating zone
The protective atmosphere of shield effect, the protective atmosphere flow is 2 ~ 12m3/h；Step C）：Pending band heating described in two is completed
Separated afterwards by separator, pressure rolling is then carried out by roll respectively so that the silver metal in the pending band
Siluer metal oxide-copper is compounded to form in the groove that oxidized zone is mounted on the copper strips by pressure rolling heat with the copper strips to be combined
Band；Step D）：Two siluer metal oxide-copper composite bands are put into diffusion furnace in mode stacked on top of one another and moved back
Fire processing, the one side that the two siluer metal oxide-alignment of copper composite band both sides and exposures have silver metal oxidized zone is mutually pasted
By make it that the silver metal oxidized zone does not contact the external world, annealing temperature between 500 DEG C ~ 650 DEG C, annealing time 1h ~ 2h it
Between；Step E）：Two siluer metal oxide-copper composite bands after to having annealed are separated by the separator,
It is polished and cleaning treatment, is then rolled for several times by cold-rolling mill after separation, every time deflection is not more than 10%；
Step F）：The siluer metal oxide-copper the composite band complete to pressure rolling, which is put into described diffusion furnace, to be carried out eliminating stress processing,
Heating-up temperature is between 250 DEG C ~ 400 DEG C, and the heat time is between 1h ~ 1.5h；Step G）：Offset the silver gold after de-stress
Belong to oxide-copper composite band and carry out anti-oxidant treatment, the copper material in the siluer metal oxide-copper composite band to exposure outside
Upper smearing antioxidant；Step H）：Slitting is carried out to described siluer metal oxide-copper composite band according to actual conditions；Step
I）：Siluer metal oxide-copper composite band of described point of complete bar is tested test.
In above-mentioned technical proposal, it is preferred that described step A）Described in the width of the groove that opens up on copper strips and institute
State silver metal oxidation bandwidth it is equal, the depth of the groove is the 100% ~ 110% of the silver metal oxidized zone height.
In above-mentioned technical proposal, it is preferred that described step B）Described in protective atmosphere be pure nitrogen gas or pure hydrogen.
In above-mentioned technical proposal, it is preferred that described step D）Described in diffusion furnace in filled with protective atmosphere, it is described
Protective atmosphere is pure nitrogen gas, and described nitrogen flow is 1.5 ~ ~ 10.5m3/h。
In above-mentioned technical proposal, it is preferred that described step E）In, described cold-rolling mill is four high finishing mill, described every
Passage finish rolling deflection is between 5% ~ 10%.
In above-mentioned technical proposal, it is preferred that including conveying device, heater, separator and press-roller device, its feature
For described conveying device includes first conveyer belt, second conveyer belt and the third conveyer belt, described first conveyer belt and described second conveying
Band connects the third described conveyer belt by the combiner, and the third described conveyer belt passes through described in described heater connection
Separator, the described press-roller device of described separator connection.
In above-mentioned technical proposal, it is preferred that described combiner has just to the second conveyer belt and width and the copper
The adaptable inclined-plane of band, described inclined-plane both sides are provided with guide plate, the underface of described first conveyer belt on the inclined-plane.
In above-mentioned technical proposal, it is preferred that described separator includes triangular form separator, described triangular form separation
Device is just to the third described conveyer belt, and the triangular form separator point is provided with several two pending bands of separation
It is additionally provided with roller, described triangular form separator below first feed track, described triangular form separator and is provided with second conveying
Road, described first feed track and described second feed track connect described press-roller device.
In above-mentioned technical proposal, it is preferred that described heater is continuous furnace.
Need to carry out heating pressure rolling, but the meeting in heating in the electric contact material production that siluer metal oxide and copper are combined
The problem of occurring occurring reduction reaction between silver metal oxidized zone and reducing gas.In order to solve this problem the invention
Siluer metal oxide is concealed in heating process, it is to avoid it is in contact with reducing gas.Opened up first on copper strips
There is the groove matched with silver metal oxidized zone, the width of groove is equal with silver metal oxidation bandwidth, while can have necessarily
High surplus, it is ensured that silver metal oxidized zone can be put into the groove of copper strips.Silver metal oxidized zone, which is put into after copper strips, forms pending
Band, pending band is the composite band that one side exposure has siluer metal oxide.Entering laser heating stokehold, allowing two pending bands
It is layered on top of each other, now two pending bands have the one side of siluer metal oxide bonded to each other, allows siluer metal oxide to be wrapped
In two pending bands, in heating process, protective atmosphere only can be with the copper phase outside two pending bands in continuous furnace
Contact will not be in contact with siluer metal oxide in two pending bands, so avoid siluer metal oxide in heating process
In with reducing gas occur reduction reaction reduction siluer metal oxide content the problem of.Again with separator two after the completion of heating
Then the pending band separation of bar carries out pressure rolling by roll respectively.The deflection of pressure rolling be not less than 50%, allow silver metal oxidized zone with
Copper strips is combined in the way of heat is inlayed, because the groove of copper strips and silver metal oxidized zone are wide, while can be allowed after first time pressure rolling
Copper strips and silver metal oxidized zone etc. are flat, can be covered in the marginal portion of silver metal oxidized zone by copper strips, while copper strips can be to silver-colored gold
Category oxidized zone both sides, which apply powerful pressure, can allow copper strips to be brought into close contact silver metal oxidized zone, if it is necessary, can also be in silver-colored gold
Category oxidized zone both sides open up stopper slot, allow copper strips to be fitted close with silver metal oxidized zone stopper slot when pressure rolling, such copper
Band can be strong higher with the combination of silver metal oxidized zone, is combined fastness more preferable.Be formed after first time pressure rolling is complete siluer metal oxide-
Copper composite band.Then siluer metal oxide-copper composite band is handled by annealing, finish rolling again, elimination stress is handled, anti-oxidant
With regard to final product can be changed into after processing, itemizing process and verification test.
Compared with prior art, the beneficial effects of the invention are as follows：Silver metal oxidized zone can be allowed to get along well in heating process
External world's contact, it is to avoid with silver metal oxidized zone reduction reaction occurs for protective atmosphere, causes the siluer metal oxide to be reduced reduction
The problem of compound silver band performance.Silver metal oxidized zone, which is put into, simultaneously is opened in the groove of copper strips and then carries out hot pressing and roll so that multiple
Close silver band combination strong higher, be combined fastness more preferable.
Brief description of the drawings
Fig. 1 is hot composite rolling mill schematic diagram of the invention.
Fig. 2 is combiner schematic diagram of the present invention.
Fig. 3 is triangular form separator schematic diagram of the present invention.
Embodiment
The present invention is described in further detail with reference to embodiment and accompanying drawing.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of hot composite rolling mill, including conveying device, heater, separator 5 and pressure
Roller arrangement 7, described heater is to be connected with several appendixs 41 on continuous furnace 4, continuous furnace 4.Described
Conveying device includes first conveyer belt 21, the conveyer belt 23 of second conveyer belt 22 and third, described first conveyer belt 21 and described second conveying
Connect the third described conveyer belt 23 by the combiner 3 with 22, described combiner 3 have just to the second conveyer belt 22 and
The inclined-plane 31 that width is adapted with the copper strips, the described both sides of inclined-plane 31 are provided with guide plate 32, described first conveyer belt 21
Underface on the inclined-plane 31.The third described conveyer belt 23 connects described separator by described continuous furnace 4
5, described separator 5 includes triangular form separator 51, described triangular form separator 51 just to the third described conveyer belt 23,
The point of triangular form separator 51 is provided with the roller 52 of several two pending bands of separation, described triangular form separation
First feed track 61 is additionally provided with device 51, the described lower section of triangular form separator 51 is provided with second feed track 62, and described first is defeated
Send 61 and described second feed track 62 connects described press-roller device 7.
A kind of manufacture method of compound silver band, includes following steps：Step A）：To copper strips and silver metal oxidized zone table
Face is cleaned, and removes the greasy dirt and impurity on its surface, is then opened up on described copper strips and the silver metal oxidized zone phase
The width of the groove opened up on the groove of matching, the copper strips is equal with silver metal oxidation bandwidth, the depth of the groove
It is the 100% ~ 110% of the silver metal oxidized zone height, polishing subsequently is carried out to copper strips and metal oxidation band.Step
B）：Machining is carried out to the copper strips end so that the end that the copper strips has the one side of the groove forms inclined-plane, simultaneously
In the copper strips there is the one side of the groove to open up some wave grooves.Step C）：The silver metal oxidized zone is put into institute
State and pending band is formed in the groove of copper strips, then pending band respectively enters first conveyer belt 21, second conveyer belt 22 in combiner 3
Entered under effect in mode stacked on top of one another in the third conveyer belt 23, now the alignment of pending band both sides and exposure described in two
The one side for having silver metal oxidized zone, which mutually reclines, allows the wave groove mutually to agree with so that the silver metal oxidized zone does not contact outer
Heating-up temperature is 550 DEG C ~ 750 DEG C in boundary, the continuous furnace, and tape running speed is to be set in 1.0 ~ 3.0m/min, heating zone
There is the protective atmosphere shielded, protective atmosphere enters continuous furnace from appendix 41, and described protective atmosphere is pure
Nitrogen or pure hydrogen, the protective atmosphere flow are 2 ~ 12m3/h.Step D）：After the completion of pending band heating described in two
Separated by separator, because copper strips end has inclined-plane, triangular form separator 51 can be easily inserted into two
Two pending bands are allowed to respectively enter first feed track in the presence of the top rollers 52 of triangular form separator 51 between pending band
61 and described second feed track 62, subsequently pass through press-roller device 7 respectively and carry out pressure rolling so that the silver in the pending band
Metal oxidation band logical to cross in the groove that pressure rolling heat is mounted on the copper strips that be compounded to form siluer metal oxide-copper with the copper strips multiple
Crossed belt, now siluer metal oxide-copper composite band compared to pending band deflection be more than 50%.Step E）：By two silver gold
Category oxide-copper composite band is put into diffusion furnace in mode stacked on top of one another and made annealing treatment, two silver metal oxygen
The one side that the alignment of compound-copper composite band both sides and exposure have silver metal oxidized zone mutually recline so that the silver metal oxidized zone not
Contact is extraneous, and annealing temperature is between 500 DEG C ~ 650 DEG C, and annealing time is between 1h ~ 2h, filled with protective atmosphere in diffusion furnace,
Described protective atmosphere is pure nitrogen gas, and described nitrogen flow is 1.5 ~ ~ 10.5m3/h.Step F）：Two after to having annealed
The siluer metal oxide-copper composite band is separated by the separator, is polished after separation and cleaning treatment, so
Rolled for several times by cold-rolling mill afterwards, every time described finish rolling deflection is between 5% ~ 10%.Step G）：The institute complete to pressure rolling
State siluer metal oxide-copper composite band and be put into progress elimination stress processing in described diffusion furnace, heating-up temperature is 250 DEG C ~ 400
Between DEG C, the heat time is between 1h ~ 1.5h.Step H）：Offset that the siluer metal oxide-copper after de-stress is compound to be brought into
Row anti-oxidant treatment, smear antioxidant on copper material outside in the siluer metal oxide-copper composite band to exposing.Step
I）：The siluer metal oxide-copper composite band two ends are cut off, according to actual conditions to described siluer metal oxide-
Copper composite band carries out slitting.Step J）：Siluer metal oxide-copper composite band of described point of complete bar is tested test.
Claims (5)
1. the manufacture method of compound silver band, its feature includes following steps：Step A）：To copper strips and silver metal oxidized zone table
Face is cleaned, and removes the greasy dirt and impurity on its surface, is then opened up on described copper strips and the silver metal oxidized zone phase
The groove of matching, is subsequently processed by shot blasting to copper strips and silver metal oxidized zone；Step B）：The silver metal oxidized zone is put into
Pending band is formed in the groove of the copper strips, two pending bands are then put into laser heating in mode stacked on top of one another
In stove, the pending one side for having silver metal oxidized zone of aliging and expose with both sides described in two mutually reclines so that the silver gold
It is 550 DEG C ~ 750 DEG C that category oxidized zone, which does not contact heating-up temperature in the external world, the continuous furnace, and tape running speed is 1.0 ~ 3.0m/
The protective atmosphere shielded is provided with min, heating zone, the protective atmosphere flow is 2 ~ 12m3/h；Step C）：Two
Separated after the completion of described pending band heating by separator, pressure rolling is then carried out by roll respectively so that institute
The silver metal oxidized zone in pending band is stated to be mounted in the groove on the copper strips and the copper strips complex by pressure rolling heat
Into siluer metal oxide-copper composite band；Step D）：By two siluer metal oxide-copper composite bands with side stacked on top of one another
Formula is put into diffusion furnace and made annealing treatment, and two siluer metal oxide-copper composite band both sides are alignd and exposure has silver
The one side of metal oxidized zone mutually reclines so that the silver metal oxidized zone does not contact the external world, and annealing temperature is at 500 DEG C ~ 650 DEG C
Between, annealing time is between 1h ~ 2h；Step E）：Two siluer metal oxide-copper composite bands after to having annealed pass through
The separator is separated, and is polished after separation and cleaning treatment, is then rolled for several times by cold-rolling mill, per pass
Secondary deflection is not more than 10%；Step F）：The siluer metal oxide-copper the composite band complete to pressure rolling is put into described diffusion
Carry out eliminating stress processing in stove, heating-up temperature is between 250 DEG C ~ 400 DEG C, and the heat time is between 1h ~ 1.5h；Step G）：
Offset the siluer metal oxide after de-stress-copper composite band and carry out anti-oxidant treatment, it is multiple in the siluer metal oxide-copper
Smear antioxidant on copper material outside to exposing on crossed belt；Step H）：According to actual conditions to described siluer metal oxide-
Copper composite band carries out slitting；Step I）：Siluer metal oxide-copper composite band of described point of complete bar is tested test.
2. the manufacture method of compound silver band according to claim 1, it is characterized in that, described step A）Described on copper strips
The width of the groove opened up is equal with silver metal oxidation bandwidth, and the depth of the groove is that the silver metal oxidized zone is high
The 100% ~ 110% of degree.
3. the manufacture method of compound silver band according to claim 1, it is characterized in that, described step B）Described in protection
Atmosphere is pure nitrogen gas or pure hydrogen.
4. the manufacture method of compound silver band according to claim 1, it is characterized in that, described step D）Described in diffusion
Filled with protective atmosphere in stove, described protective atmosphere is pure nitrogen gas, and described nitrogen flow is 1.5 ~ 10.5m3/h。
5. the manufacture method of compound silver band according to claim 1, it is characterized in that, described step E）In, described is cold
Milling train is four high finishing mill, and every time described finish rolling deflection is between 5% ~ 10%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510539620.7A CN105225855B (en) | 2015-08-28 | 2015-08-28 | The manufacture method and manufacturing equipment of compound silver band |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510539620.7A CN105225855B (en) | 2015-08-28 | 2015-08-28 | The manufacture method and manufacturing equipment of compound silver band |
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| CN105225855B true CN105225855B (en) | 2017-07-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109509571B (en) * | 2018-11-19 | 2022-07-26 | 北京有色金属与稀土应用研究所 | Tin-based alloy and copper strip composite material and preparation method thereof |
| CN112366107B (en) * | 2020-11-11 | 2021-12-10 | 福达合金材料股份有限公司 | Preparation method of silver metal oxide sheet-shaped electrical contact |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH09259678A (en) * | 1996-03-19 | 1997-10-03 | Sumitomo Metal Mining Co Ltd | Silver/oxide compound type electric contact material and manufacture thereof |
| CN100437858C (en) * | 2006-11-24 | 2008-11-26 | 林羽锦 | Machining technique of silver/copper/iron composite strip material |
| CN100496778C (en) * | 2007-05-23 | 2009-06-10 | 福达合金材料股份有限公司 | Method for preparing double side mosaic type hot-rolling composite silver copper strip |
| CN203706959U (en) * | 2013-12-26 | 2014-07-09 | 浙江科扬新材料科技有限公司 | Manufacturing device for composite silver strip |
| CN103722041B (en) * | 2013-12-26 | 2017-01-11 | 浙江科扬新材料科技有限公司 | Manufacturing equipment and method of compound silver belt |
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