CN101241811B - Making method for temperature controller heteromorphism section electric contact material - Google Patents
Making method for temperature controller heteromorphism section electric contact material Download PDFInfo
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- CN101241811B CN101241811B CN200810069389XA CN200810069389A CN101241811B CN 101241811 B CN101241811 B CN 101241811B CN 200810069389X A CN200810069389X A CN 200810069389XA CN 200810069389 A CN200810069389 A CN 200810069389A CN 101241811 B CN101241811 B CN 101241811B
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Abstract
The present invention relates to a method for preparing a strip material which is used for the special-shaped section electric contact of the temperature controller. The preparing method comprises the following procedures: firstly rolling and compositing the silver-nickel alloy, copper and iron to a three-layer composite strip material under the state of heating or room temperature, and when the three-layer composite material is annealed and strip-divided, executing the subsequent rolling with the roller which is arranged with groove and the special-shaped strip material used for the temperature controller is obtained. The special-shaped temperature controller contact strip material prepared with the method of the invention can be continuously mass-produced and has the advantages of high production efficiency and low cost. Besides, when the strip material is being used, only the shearing material-falling and installing in the strip material direction is required. The using is extraordinary simple and the capability advantage of the contract terminal can be guaranteed.
Description
Technical field
The present invention relates to a kind of manufacture method of composite strip, particularly a kind of manufacture method that is used for temperature controller heteromorphism section electric contact material.
Background technology
In thermostat, the contact of pairing must have accurate contact and separating action, to guarantee each electric appliances-as water heater, electric furnace, dishwasher, washing machine, electric caldron, microwave oven etc.-temperature controlled accuracy.Simultaneously, usually there is Korrosionsmedium in the environment for use of electrical equipment, so require contact to have good chemical stability.Therefore, the silver-nickel that with silver is base has obtained application widely because of having good electrical contact performance and decay resistance in thermostat.But, costing an arm and a leg of silver, in order to reduce cost, usually adopt composite material, use silver-nickel, middle good copper or the copper alloy layer of conductivity that use in contact conductive layer, simultaneously, in order to guarantee to have good welding performance between this class contact and the iron, compound iron below the copper layer also, thus constitute 3-layer composite material.This class material electrical contact performance, conductivity, stability and weldability are all excellent, have obtained using widely in the electric contacts of all kinds of temperature controls.
Because the contact-making surface of this contact is a convex, to prevent melting welding and to improve the accuracy of on-off action small salient point being arranged on pure iron weld layer surface to improve weld strength.Therefore, the difficulty of processing of contact is big.If adopt machine work, then can waste wide variety of materials, and can not produce long band continuously; If carry out die forging, can not produce long band continuously, cause production efficiency to reduce, cost increases.
Summary of the invention
The invention provides a kind of manufacture method that is used for temperature controller heteromorphism section electric contact material.Adopt the inventive method to make the section electrical contact belt, can produce in enormous quantities continuously, the production efficiency height is arranged, cost is low, can not waste the composite material advantage, and can guarantee the performance of thermostat contact.
Described manufacture method of the present invention is, earlier under heating or room temperature state, be combined into three layers of composite strip with silver-nickel, copper and iron are rolling, behind 3-layer composite material annealing and itemize, three layers of wide identical composite strip of dedicated bandwidth and the special-shaped contact of made, the upper and lower roll that adopts roll surface to be provided with groove is rolled, roll out the surface and have the cross section that has continuous projection contact band for abnormity, the band material of rolling is cut off by the length of making the contact requirement in the longitudinal direction, promptly can be used for making contact.
Preparation method of the present invention, the bandwidth of three layers of composite strip being got is wide identical with the contact that needs making and made, can guarantee in use not have the waste of material, be provided with the depression of the protruding moulding that is used to make contact surface with the groove bottom land that a roll is arranged in the top and bottom rolls, because roller surface is furnished with groove, point-like or annular groove shape arranged in that groove bottom land surface distributed is some, can make on the band that rolls out continuous projection (decorative pattern) is arranged, it is the contact, therefore, only need of the shape need setting of follow-up rolling roll according to contact, can produce the product that matches with described structure of contact terminal according to the inventive method,, can reduce production costs without any need for scrap build, and can produce the production efficiency height continuously in enormous quantities.
The three layers of band and follow-up rolling simple to operate that are combined into of the present invention, technology is controlled easily.With the contact that the section electrical contact belt of the inventive method preparation is made, its constant product quality, and can become the sheet material of different size according to user's specific requirement punching out.And for having the enterprise of composite strip production capacity, only need be according to the shape and the pattern setting roll roll surface of the projection of contact contact, can change product crosssection shape, the continuous projection that matches with the contact contact is arranged on the rolling band, the applicability of technology is strong.
Description of drawings
Fig. 1 has the structural representation of the special-shaped roll of a plurality of salient points for the iron-based layer;
Fig. 2 has the structural representation of the special-shaped contact material of a plurality of salient points for the iron-based layer;
Fig. 3 has the special-shaped roll structural representation of two projectioies for the iron-based layer;
Fig. 4 has the structural representation of the special-shaped contact material of two projectioies for the iron-based layer.
Embodiment
1. the structure choice according to contact designs raw-material thickness of each layer and width, when selecting raw material, should design raw-material width according to the working ability of the width of roll surface and equipment and the principle that can fully improve the utilance of band.Also should consider the extensional on year-on-year basis of each layer metal in recombination process, simultaneously the size in conjunction with each multiple layer unwinding tension designs the raw-material thickness of each multiple layer, and during itemize, the bandwidth that makes three layers of composite strip is wide identical with the special-shaped contact of made.
With silver-nickel, copper alloy and the iron formation 3-layer composite material that is combined with each other, compound can carrying out under heating also can carry out under room temperature state with common flat roll.
2. with three layers of composite strip of step 1 gained, the upper and lower roll that is provided with groove at roll surface is rolled.Concrete shape according to contact is processed upper and lower roll: the depression that has the groove bottom land of a roll to be provided with to be used to the protruding moulding that makes special-shaped contact surface in the upper and lower roll, the depression of described groove bottom land is set to some point-like or annular groove shapes that are distributed on roll groove bottom land surface according to the shape of contact surface projection.Use above-mentioned roll, can roll out the temperature controller heteromorphism section electric contact material that is used for that there are continuous salient point (decorative pattern) or annular groove in the surface.Certainly, the point-like on roll groove bottom land surface can be provided with different shape according to the shape of contact, as rhombus, garden rectangle, triangle or the like.
Embodiment 1
A. (see figure 1), according to the shape of contact, topping roll is the groove of diamond shaped at the bottom of being provided with several trough, bottom roll is set to the groove with two chamferings;
B. be that the thick AgNi10 alloy of 0.7mm, intermediate layer are that the copper of 3mm and 0.6mm and sheet iron strip material (basic unit) are heated to 700 ℃ of temperature with the top layer; gas flow is in the nitrogen and hydrogen gas mixture protective atmosphere of 10～20L/min, obtains three layers of composite strip with flat rolling heat is compound.With the rolling hot compound tense of roll, the deflection 30% on basic unit, intermediate layer, top layer, can spread mutually to guarantee the metal that is in contact with one another, closely combine, better compound fastness is arranged.Three layers of composite strip are under the protective atmosphere at nitrogen and hydrogen gas mixture; the mixing ratio of nitrogen and hydrogen gas mixture is 3: 1; gas flow is 15L/min; temperature is continuous heat diffusion annealing under 550 ℃ of conditions; with composite strip continue to be rolling to 1.5mm thick after; itemize becomes the wide strip of 2.3mm, promptly obtains the blank of special-shaped contact material of the present invention.The gained blank is placed in the described roll of steps A, and the rolling surface that obtains of room temperature has continuous special-shaped salient point (decorative pattern) to be used for the temperature controller heteromorphism section electric contact material (see figure 2).
Embodiment 2
A. (see figure 3), according to the shape of contact, topping roll is set to the recessed roller with circular arc, and bottom roll is provided with the groove that bottom, the left and right sides has two taperings;
Present embodiment B step is identical with the B step of embodiment 1, and the rolling rolling surface that obtains of room temperature that obtains of room temperature has continuous special-shaped salient point (decorative pattern) to be used for the temperature controller heteromorphism section electric contact material (see figure 4).
Embodiment 3
A. (see figure 3), according to the shape of contact, topping roll is set to the recessed roller of bottom land band circular arc, and bottom roll is provided with the groove that bottom land has two taperings;
B. the top layer of polishing is after the thick AgNi10 alloy of 0.7mm, intermediate layer are the copper and 0.6mm and sheet iron strip material (basic unit) of 3mm, rolling compound with flat roll, the deflection of compound tense top layer, intermediate layer and basic unit is more than or equal to 60%, indoor humidity is less than 50, to guarantee that the metal that is in contact with one another can spread mutually, closely combine, better compound fastness is arranged.Compound back is 10L/min at gas flow; nitrogen and hydrogen gas mixture are protective atmosphere, and temperature is continuous heat diffusion annealing under 600 ℃ of conditions, with composite strip continue to be rolling to 1.5mm thick after; itemize becomes the wide strip of 2.3mm, promptly obtains special-shaped contact material blank of the present invention.The gained blank is placed in the described roll of steps A, and the rolling surface that obtains of room temperature has continuous special-shaped salient point (decorative pattern) to be used for the temperature controller heteromorphism section electric contact material (see figure 4).
Embodiment 4
A. (see figure 1), according to the shape of contact, topping roll is the groove of diamond shaped at the bottom of being provided with several trough, bottom roll is set to the groove of two chamferings of bottom, left and right sides band;
Present embodiment B step is identical with the B step of embodiment 3, and the rolling surface that obtains of room temperature has continuous special-shaped salient point (decorative pattern) to be used for the temperature controller heteromorphism section electric contact material (see figure 2).
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; any person of ordinary skill in the field; without departing from the spirit and scope of the invention; when can doing a little change and improvement, so the present invention's protection range is as the criterion when looking the claim person of defining.
Claims (6)
1. manufacture method that is used for the section electrical contact belt of thermostat, it is characterized in that: with basic unit for the iron intermediate layer for the copper top layer be the compound or room temperature of three layers of composite strip heating of silver-nickel compound after, the upper and lower roll that adopts roll surface to be provided with groove is rolled, there is the groove bottom land of a roll to be provided with to be used to the depression of the protruding moulding that makes special-shaped contact surface in the described top and bottom rolls, rolls out the lobed described special-shaped contact band in surface.
2. manufacture method according to claim 1 is characterized in that: the depression of described roll groove bottom land is set to some point-like or annular groove shapes that are distributed in roll groove bottom land surface according to the shape of contact surface projection.
3. manufacture method according to claim 1; it is characterized in that: the heating of described three layers of composite strip is compound; employing is heated to 600～750 ℃ of temperature with top layer metal, metallic intermediate layer and parent metal; at gas flow is in the protective atmosphere of the hydrogen of 10～20L/min or nitrogen or nitrogen and hydrogen gas mixture; it is compound to carry out heat with flat rolling; be under the protective atmosphere at hydrogen or nitrogen or nitrogen and hydrogen gas mixture again after compound; gas flow is 10～20L/min, and temperature is continuous heat diffusion annealing under 500～750 ℃ of conditions.
4. manufacture method according to claim 3 is characterized in that: described with the hot compound tense of plain-barreled roll, the deflection on basic unit, intermediate layer, top layer is more than or equal to 25%.
5. manufacture method according to claim 1; it is characterized in that: the room temperature of described three layers of composite strip is compound; adopt the mating surface of top layer, intermediate layer and the basic unit of polishing earlier; top layer, intermediate layer and basic unit is compound with flat rolling; the deflection of compound tense top layer, intermediate layer and basic unit is more than or equal to 60%; indoor humidity is less than 50; be under the protective atmosphere at hydrogen or nitrogen or nitrogen and hydrogen gas mixture again after compound; gas flow is 10～20L/min, and temperature is continuous heat diffusion annealing under 500～750 ℃ of conditions.
6. according to claim 3 and 5 any described manufacture methods, it is characterized in that: the mixing ratio of nitrogen and hydrogen gas mixture is 3: 1 in the described protective atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810069389XA CN101241811B (en) | 2008-02-25 | 2008-02-25 | Making method for temperature controller heteromorphism section electric contact material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810069389XA CN101241811B (en) | 2008-02-25 | 2008-02-25 | Making method for temperature controller heteromorphism section electric contact material |
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| CN101241811A CN101241811A (en) | 2008-08-13 |
| CN101241811B true CN101241811B (en) | 2011-01-26 |
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| CN200810069389XA Active CN101241811B (en) | 2008-02-25 | 2008-02-25 | Making method for temperature controller heteromorphism section electric contact material |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489969A (en) * | 2011-12-16 | 2012-06-13 | 福达合金材料股份有限公司 | Preparation method and continuous production and forming device of precision compound narrow band |
| 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 |
| CN104384186B (en) * | 2014-09-23 | 2017-06-06 | 重庆川仪自动化股份有限公司 | Containing golden three layers of preparation method of micro-special-shaped contact material |
| CN109848214A (en) * | 2018-12-27 | 2019-06-07 | 西南铝业（集团）有限责任公司 | A kind of blank and rolled plate manufacture craft |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092903A (en) * | 1993-10-04 | 1994-09-28 | 沈阳黄金学院贵金属材料厂 | Silver/copper/Ag/Cu/Ag-Cu-Zn contactor composite and manufacture method thereof |
| CN1208941A (en) * | 1997-08-14 | 1999-02-24 | 北京有色金属研究总院 | Process for mfg. micro and special shaped contactor belt having super thin electric contacting layer |
| CN1838354A (en) * | 2006-03-02 | 2006-09-27 | 乐百令 | Three-layer composite electric contact manufacturing process |
| CN1971790A (en) * | 2006-11-24 | 2007-05-30 | 林羽锦 | Machining technique of silver/copper/iron composite strip material |
-
2008
- 2008-02-25 CN CN200810069389XA patent/CN101241811B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092903A (en) * | 1993-10-04 | 1994-09-28 | 沈阳黄金学院贵金属材料厂 | Silver/copper/Ag/Cu/Ag-Cu-Zn contactor composite and manufacture method thereof |
| CN1208941A (en) * | 1997-08-14 | 1999-02-24 | 北京有色金属研究总院 | Process for mfg. micro and special shaped contactor belt having super thin electric contacting layer |
| CN1838354A (en) * | 2006-03-02 | 2006-09-27 | 乐百令 | Three-layer composite electric contact manufacturing process |
| CN1971790A (en) * | 2006-11-24 | 2007-05-30 | 林羽锦 | Machining technique of silver/copper/iron composite strip material |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2007-291509A 2007.11.08 |
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Owner name: CHONGQING SICHUAN INSTRUMENT COMPLEX CO., LTD. Free format text: FORMER OWNER: CHONGQING CHUANYI 17TH FACTORY Effective date: 20141216 |
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Effective date of registration: 20141216 Address after: 400700 Beibei District People's village, No. 1, Chongqing Patentee after: Chongqing Sichuan Instrument Complex Co., Ltd. Address before: 400700, Longfeng village, No. 7, Beibei District, Chongqing Patentee before: Chongqing Chuanyi 17 Factory Co., Ltd. |