CN105225856B - The manufacture method and manufacturing equipment of a kind of compound silver band - Google Patents
The manufacture method and manufacturing equipment of a kind of compound silver band Download PDFInfo
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- CN105225856B CN105225856B CN201510539621.1A CN201510539621A CN105225856B CN 105225856 B CN105225856 B CN 105225856B CN 201510539621 A CN201510539621 A CN 201510539621A CN 105225856 B CN105225856 B CN 105225856B
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- band
- metal oxide
- silver
- copper
- copper strips
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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)
- Pressure Welding/Diffusion-Bonding (AREA)
- Metal Rolling (AREA)
- Manufacture Of Switches (AREA)
Abstract
The invention discloses a kind of manufacture method and manufacturing equipment of silver oxide composite band, it is related to the manufacture method and equipment of electric contact material, its method workflow is：Siluer metal oxide band, copper strips processing early stage>Siluer metal oxide band and copper strips heating>Silver-colored oxidized zone, copper strips are compound>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：It can allow the extraneous contact of siluer metal oxide band discord in heating process, avoid protective atmosphere and reduction reaction occurs with siluer metal oxide band, the problem of causing siluer metal oxide to be reduced reduces 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, and compound fastness is 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 combines 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 again, silver had both been saved, has played the resistance to electrical wear of silver contact, and resisted
The advantages that heat sealability and electric conductivity, and can improve mechanical performance, are an important section silver technologies.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 it is compound, these be not substantially silver oxide and copper it is compound.Indivedual enterprise's production 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, can only process the band of a segment length very little every time, utilize this kind
Technique is unable to Continuous maching, production：It is extremely inefficient.
The content of the invention
The present invention is directed to deficiency of the prior art, there is provided the manufacture method and manufacturing equipment of a kind of compound silver band, energy
It is enough to allow silver metal oxidized zone discord is extraneous to contact in heating process, avoid protective atmosphere and reduced with silver metal oxidized zone
Reaction, cause siluer metal oxide be reduced reduce compound silver band performance the problem of.Silver metal oxidized zone, which is put into, simultaneously is opened in
In the groove of copper strips and then progress hot pressing is rolled so that compound silver band combination is strong higher, and compound fastness is more preferable.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals：A kind of system of compound silver band
Method is made, its feature includes following steps：Step A）：Copper strips and silver metal oxidation belt surface are cleaned, remove it
The greasy dirt and impurity on surface, the groove to match with the silver metal oxidized zone is then opened up on described copper strips, it is subsequently right
Copper strips and metal oxidation band carry out polishing；Step B）：Machining is carried out to the copper strips end so that the copper strips tool
The end for having the one side of the groove forms inclined-plane, while 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 the groove of the copper strips and forms pending band, then by two pending bands
It is put into a manner of stacked on top of one another in continuous furnace, the alignment of pending band both sides and exposure described in two have silver metal oxygen
The one side for changing band mutually reclines so that the silver metal oxidized zone does not contact the external world, and heating-up temperature is in the continuous furnace
550 DEG C ~ 750 DEG C, tape running speed is 1.0 ~ 3.0m/min, and the protective atmosphere to shield, the guarantor are provided with heating zone
It is 2 ~ 12m to protect atmosphere flow3/h；Step D）：Separated after the completion of pending band heating described in two by separator,
Then pressure rolling is carried out by roll respectively so that the silver metal oxidized zone is mounted to institute by pressure rolling heat in the pending band
State in the groove on copper strips and be compounded to form siluer metal oxide-copper composite band with the copper strips；Step E）：By two silver metals
Oxide-copper composite band is put into diffusion furnace in a manner of stacked on top of one another and made annealing treatment, two silver metal oxidations
The one side that the thing-alignment of copper composite band both sides and exposure has silver metal oxidized zone mutually reclines so that the silver metal oxidized zone does not connect
The external world is touched, annealing temperature is between 500 DEG C ~ 650 DEG C, and annealing time is between 1h ~ 2h；Step F）：To two after 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 deflection is not more than 10%；Step G）：The silver metal complete to pressure rolling
Oxide-copper composite band, which is put into described diffusion furnace, to be carried out eliminating stress processing, heating-up temperature between 250 DEG C ~ 400 DEG C,
Heat time is between 1h ~ 1.5h；Step H）：Offset the siluer metal oxide after de-stress-copper composite band and carry out antioxygen
Change is handled, to smearing antioxidant on outer copper material in the siluer metal oxide-copper composite band；Step I）：It is right
The siluer metal oxide-copper composite band both ends are cut off, then 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.
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 C）Described in protective atmosphere be pure nitrogen gas or pure hydrogen.
In above-mentioned technical proposal, it is preferred that described step E）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 F）In, described cold-rolling mill is four high finishing mill, described every
Passage finish rolling deflection is between 5% ~ 10%.
A kind of hot composite rolling mill according to claim 1, including conveying device, heater, separator and pressure roller dress
Put, it is characterized in that, described conveying device includes first conveyer belt, second conveyer belt and the third conveyer belt, described first conveyer belt and institute
The second conveyer belt stated connects the third described conveyer belt by the combiner, and the third described conveyer belt passes through described heater
The described separator of connection, the described press-roller device of described separator connection.
In above-mentioned technical proposal, it is preferred that described combiner has second conveyer belt described in face and width and the copper
The adaptable inclined-plane of band, described inclined-plane both sides are provided with guide plate, and described first conveyer belt is in the underface on the inclined-plane.
In above-mentioned technical proposal, it is preferred that described separator includes triangular form separator, the separation of described triangular form
The third conveyer belt described in device face, the triangular form separator point are provided with several two pending bands of separation
Roller, first feed track is additionally provided with described triangular form separator, second conveying is provided with below described triangular form separator
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 compound electric contact material production of siluer metal oxide and copper
There is the problem of reduction reaction occurs between silver metal oxidized zone and reducing gas.In order to solve this problem the invention
Siluer metal oxide is concealed in heating process, avoid it and be in contact with reducing gas.Opened up first on copper strips
There is the groove to match with silver metal oxidized zone, the width of groove is equal with silver metal oxidation bandwidth, while can have necessarily
High surplus, ensure that silver metal oxidized zone can be put into the groove of copper strips.Then machining is carried out to copper strips end so that described
The end that copper strips has the one side of the groove forms inclined-plane.Silver metal oxidized zone forms pending band after being put into copper strips, waits to locate
Reason band is the composite band that one side exposure has siluer metal oxide.Entering laser heating stokehold, allowing two pending band phase alternating layers
Folded, the one side that now two pending bands have siluer metal oxide is bonded to each other, and allows siluer metal oxide to be wrapped in two
In pending band, in heating process, protective atmosphere can only be in contact not with the copper outside two pending bands in continuous furnace
It can be in contact with siluer metal oxide in two pending bands, so avoid siluer metal oxide in heating process with going back
The problem of reduction reaction reduces siluer metal oxide content, occurs for raw-gas.Again two are waited to locate with separator after the completion of heating
Then reason band separation carries out pressure rolling by roll respectively.The deflection of pressure rolling is not less than 50%, allow silver metal oxidized zone and copper strips with
The mode that heat is inlayed is compound because the groove of copper strips and silver metal oxidized zone are wide, while can be allowed after first time pressure rolling copper strips with
Silver metal oxidized zone etc. is flat, can be covered in the marginal portion of silver metal oxidized zone by copper strips, while copper strips can aoxidize to silver metal
Applying powerful pressure with both sides can allow copper strips to be brought into close contact silver metal oxidized zone, if it is necessary, can also be aoxidized in silver metal
Band both sides open up stopper slot, allow copper strips and silver metal oxidized zone stopper slot to be fitted close when pressure rolling, such copper strips can and
The combination of silver metal oxidized zone is strong higher, and compound fastness is more preferable.It is compound that siluer metal oxide-copper is formed after first time pressure rolling is complete
Band.Then siluer metal oxide-copper composite band again by annealing, finish rolling processing, eliminate stress processing, anti-oxidant treatment,
With regard to final product can be changed into after 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, avoid protective atmosphere and reduction reaction occurs with silver metal oxidized zone, cause 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
It is strong higher with combining to close silver, compound fastness is more preferable.
Brief description of the drawings
Fig. 1 is the hot composite rolling mill schematic diagram of the present 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 are continuous furnace 4, and several appendixs 41 are connected with 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 the conveying of described second
Connect the third described conveyer belt 23 by the combiner 3 with 22, described combiner 3 have second conveyer belt 22 described in face 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
In the underface on the inclined-plane 31.The third described conveyer belt 23 passes through described continuous furnace 4 and connects described separator
5, described separator 5 includes triangular form separator 51, the third conveyer belt 23 described in the described face of triangular form separator 51,
The point of triangular form separator 51 is provided with the roller 52 of several two pending bands of separation, the separation of described triangular form
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 connect 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 groove of matching, the width of the groove opened up on 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 a manner of stacked on top of one another in the third conveyer belt 23, now the pending band both sides alignment described in two and exposure
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 outside
Boundary, heating-up temperature is 550 DEG C ~ 750 DEG C in the continuous furnace, and tape running speed be 1.0 ~ 3.0m/min, setting in heating zone
There is the protective atmosphere to shield, 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 crosses in the groove that pressure rolling heat is mounted on the copper strips that to 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 a manner of 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）：To two after 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 described diffusion furnace and carry out eliminating stress processing, 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, to smearing antioxidant on outer copper material in the siluer metal oxide-copper composite band.Step
I）：The siluer metal oxide-copper composite band both 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. a kind of manufacture method of compound silver band, its feature includes following steps：Step A）：Copper strips and silver metal are aoxidized
Belt surface is cleaned, and removes the greasy dirt and impurity on its surface, is then opened up on described copper strips and is aoxidized with the silver metal
The groove that band matches, subsequently copper strips and silver metal oxidized zone are processed by shot blasting；Step B）：The copper strips end is carried out
Machining so that the end that the copper strips has the one side of the groove forms inclined-plane, and has some wave grooves；Step
C）：The silver metal oxidized zone is put into the groove of the copper strips and forms pending band, then by more than two pending bands
The mode of lower stacking is put into continuous furnace, and the alignment of pending band both sides and exposure described in two have silver metal oxidized zone
One side mutually recline and mutually agreed with by wave groove so that the silver metal oxidized zone does not contact the external world, it is described continuous plus
Heating-up temperature is 550 DEG C ~ 750 DEG C in hot stove, and tape running speed is 1.0 ~ 3.0m/min, is provided with what is shielded in heating zone
Protective atmosphere, the protective atmosphere flow are 2 ~ 12m3/h；Step D）：By dividing after the completion of pending band heating described in two
Separated from device, pressure rolling is then carried out by roll respectively so that the silver metal oxidation band logical in the pending band
Cross in the groove that pressure rolling heat is mounted on the copper strips and be compounded to form siluer metal oxide-copper composite band with the copper strips；Step E）：
Two siluer metal oxide-copper composite bands are put into diffusion furnace in a manner of stacked on top of one another and made annealing treatment, two
The one side that siluer metal oxide described in the bar-alignment of copper composite band both sides and exposure has silver metal oxidized zone mutually reclines so that described
Silver metal oxidized zone does not contact the external world, and annealing temperature is between 500 DEG C ~ 650 DEG C, and annealing time is between 1h ~ 2h；Step F）：
Two siluer metal oxide-copper composite bands after having annealed are separated by the separator, carried out after separation
Polishing and cleaning treatment, are then rolled for several times by cold-rolling mill, and every time deflection is not more than 10%；Step G）：To pressure
The siluer metal oxide-copper the composite band rolled, which is put into described diffusion furnace, to be carried out eliminating stress processing, and heating-up temperature exists
Between 250 DEG C ~ 400 DEG C, the heat time is between 1h ~ 1.5h；Step H）：Offset the siluer metal oxide after de-stress-
Copper composite band carries out anti-oxidant treatment, anti-to being smeared on outer copper material in the siluer metal oxide-copper composite band
Oxidant；Step I）：The siluer metal oxide-copper composite band both ends are cut off, then according to actual conditions to described
Siluer metal oxide-copper composite band carry out slitting；Step J）：It is compound to siluer metal oxide-copper of described point of complete bar to bring into
Performing check is tested.
2. a kind of manufacture method of compound silver band according to claim 1, it is characterized in that, described step A）Described in copper
It is equal to take width and the silver metal oxidation bandwidth of the groove opened up, the depth of the groove is the silver metal oxidation
100% ~ 110% with height.
3. a kind of manufacture method of compound silver band according to claim 1, it is characterized in that, described step C）Described in
Protective atmosphere is pure nitrogen gas or pure hydrogen.
4. a kind of manufacture method of compound silver band according to claim 1, it is characterized in that, described step E）Described in
Filled with protective atmosphere in diffusion furnace, described protective atmosphere is pure nitrogen gas, and described nitrogen flow is 1.5 ~ 10.5m3/h。
5. a kind of manufacture method of compound silver band according to claim 1, it is characterized in that, described step F）In, it is described
Cold-rolling mill be four high finishing mill, every time described finish rolling deflection is between 5% ~ 10%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510539621.1A CN105225856B (en) | 2015-08-28 | 2015-08-28 | The manufacture method and manufacturing equipment of a kind of compound silver band |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510539621.1A CN105225856B (en) | 2015-08-28 | 2015-08-28 | The manufacture method and manufacturing equipment of a kind of compound silver band |
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| CN105225856A CN105225856A (en) | 2016-01-06 |
| CN105225856B true CN105225856B (en) | 2018-02-06 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1971790A (en) * | 2006-11-24 | 2007-05-30 | 林羽锦 | Machining technique of silver/copper/iron composite strip material |
| CN101053874A (en) * | 2007-05-23 | 2007-10-17 | 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 |
| CN103730279A (en) * | 2013-12-26 | 2014-04-16 | 浙江科扬新材料科技有限公司 | Method for manufacturing compound silver band |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08255528A (en) * | 1993-12-17 | 1996-10-01 | Takeshi Ishikawa | Three layer contact manufacturing header, and manufacture of three layer contact |
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2015
- 2015-08-28 CN CN201510539621.1A patent/CN105225856B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1971790A (en) * | 2006-11-24 | 2007-05-30 | 林羽锦 | Machining technique of silver/copper/iron composite strip material |
| CN101053874A (en) * | 2007-05-23 | 2007-10-17 | 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 |
| CN103730279A (en) * | 2013-12-26 | 2014-04-16 | 浙江科扬新材料科技有限公司 | Method for manufacturing compound silver band |
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| CN105225856A (en) | 2016-01-06 |
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