CN106024463A - Processing method of composite contact material - Google Patents
Processing method of composite contact material Download PDFInfo
- Publication number
- CN106024463A CN106024463A CN201610437235.6A CN201610437235A CN106024463A CN 106024463 A CN106024463 A CN 106024463A CN 201610437235 A CN201610437235 A CN 201610437235A CN 106024463 A CN106024463 A CN 106024463A
- Authority
- CN
- China
- Prior art keywords
- contact material
- copper
- processing method
- copper substrate
- composite contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
- H01H11/048—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts by powder-metallurgical processes
Abstract
The invention discloses a processing method of a composite contact material. The processing method is characterized by comprising the following steps: step one, putting a copper base material in a hydrogen atmosphere for reduction for 1-2 hours at the temperature of 400 to 600 DEG C, and preheating silver powder in the environment of vacuum or protective gas; step two, uniformly coating the silver powder through treatment in the first step on the surface of the copper base material through treatment in the first step and then carrying out composite rolling, so that a metallurgical bonding region is formed between the copper base material and the silver powder; step three, putting the copper base material through composite rolling in the second step in a diffusion furnace of 500-650 DEG C for carrying out annealing treatment for 0.5-1 hour, wherein the bonding region is diffused to form a bonding layer; and step four, rolling the copper base material through annealing treatment in the third step for several times into a required shape, and finally processing into the required composite contact material. Through the processing method disclosed by the invention, the composite contact material of which a silver-based and copper-based bonding layer is more uniform and the bonding is more firm can be obtained.
Description
Technical field
The processing method that the present invention relates to a kind of composite contact material.
Background technology
Low-voltage electrical apparatus contact material mainly divides the Ag-based electrical contact material with silver as main constituent and copper-based electrical contact material two class with copper as main constituent in the market.Ag-based electrical contact material with silver as main constituent has good electric conductivity, heat conductivity, has the characteristics such as contact resistance is little, oxidation resistance is strong, such as contact materials such as siller tin oxide, Ag-ZnO, silver nickel, silver rare earths.But along with the development of national economy, low-voltage electrical apparatus is on the increase, and silver consumption increases year by year, China and global silver shortage of resources and also expensive, constrain the development of money base low-voltage electrical apparatus contact material.So the copper-base contact material with copper as main constituent has been successfully applied to low voltage electrical apparatus industry, but the copper-base contact material with copper as main constituent does not has enough anti-melting welding and arc resistant burn performance, and abrasion resistance, antioxygenic property etc. are also not enough.Generally take rolling at present, galvanoplastic etc. attempt to cover the composite contact material of last layer money base at copper-based surfaces, but, the bond strength of composite prepared by said method is inadequate, due to bond strength not follow-up roll thin during be susceptible to bi-material cracking phenomena, the problems such as joint thickness is uneven make this contact material not reach technical standard.
Summary of the invention
In view of the deficiencies in the prior art, it is an object of the invention to provide a kind of make silver, cuprio combine more firmly, the processing method of joint thickness composite contact material evenly.
The present invention adopts the following technical scheme that and realizes:
The processing method of a kind of composite contact material, it is characterised in that comprise the following steps: step one, be placed in by Copper substrate material in hydrogen atmosphere and reduce 1-2 hour through 400-600 DEG C, argentum powder preheats in the environment of vacuum or protective gas；Step 2, the argentum powder processed through step one is uniformly overlayed on the Copper substrate material surface processed through step one then carry out compound rolling, make to be formed between Copper substrate material and argentum powder a metallurgical binding district；Step 3, will carry out the annealing of 0.5-1 hour in step 2 in the compound Copper substrate material rolled is placed in the diffusion furnace of 500-650 DEG C, described land diffuses to form binder course；Step 4, the copper-based material of process annealed in step 3 is rolled through for several times, be rolled into required form, be finally processed into required composite contact material.
In technique scheme, before compound rolling, because Copper substrate material aoxidizes the most in atmosphere so Copper substrate material need to be through reduction step, guarantee the cleaning (if Copper substrate material surface has oxide-film can hinder diffusion or the formation of other key of essence metallic atom) of Copper substrate material surface, it is combined the annealing heat treatment after rolling and can promote the phase counterdiffusion between metallic atom, increase cuprio, the actual bonded area in metallurgical binding district between silver, make cuprio, between silver, the bond strength of land substantially increases, also joint thickness is made evenly, the contact material prepared is made to reach technical standard.Owing to there is problem on deformation in the operation of rolling, so present invention employs the method repeatedly carrying out rolling, it is smooth indeformable that each rolling all controls that material surface is effectively ensured in deformation range.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in detail again.
Embodiment one: the processing method of a kind of composite contact material, comprises the following steps: step one, the Copper substrate material of surfacing is placed in hydrogen atmosphere the argentum powder through about 400 DEG C of reductase 12s hour, particle diameter 200 mesh preheats in vacuum environment；Step 2, the argentum powder processed through step one is uniformly overlayed on the Copper substrate material surface processed through step one then carry out compound rolling, make to be formed between Copper substrate material and argentum powder a metallurgical binding district；Step 3, will carry out the annealing of 0.5 hour in step 2 in the compound Copper substrate material rolled is placed in the diffusion furnace of 600 DEG C, described land diffuses to form binder course, and this binder course is collectively formed by Copper substrate material and silver-based material；Step 4, the copper-based material of process annealed in step 3 is rolled through for several times, be rolled into required form, be finally processed into required composite contact material.
Embodiment two: the processing method of a kind of composite contact material, comprises the following steps: step one, is placed in by the Copper substrate material of surfacing in hydrogen atmosphere and reduces 1 hour through 600 DEG C, and the argentum powder about particle diameter 200 mesh preheats in vacuum environment；Step 2, the argentum powder processed through step one is uniformly overlayed on the Copper substrate material surface processed through step one then carry out compound rolling, make to be formed between Copper substrate material and argentum powder a metallurgical binding district；Step 3, will carry out the annealing of 1 hour in step 2 in the compound Copper substrate material rolled is placed in the diffusion furnace of 500 DEG C, described land diffuses to form binder course, and this binder course is collectively formed by Copper substrate material and silver-based material；Step 4, the copper-based material of process annealed in step 3 is rolled through for several times, be rolled into required form, be finally processed into required composite contact material.
Claims (1)
1. the processing method of a composite contact material, it is characterised in that comprise the following steps: step one, be placed in by Copper substrate material in hydrogen atmosphere and reduce 1-2 hour through 400-600 DEG C, argentum powder preheats in the environment of vacuum or protective gas；Step 2, the argentum powder processed through step one is uniformly overlayed on the Copper substrate material surface processed through step one then carry out compound rolling, make to be formed between Copper substrate material and argentum powder a metallurgical binding district；Step 3, will carry out the annealing of 0.5-1 hour in step 2 in the compound Copper substrate material rolled is placed in the diffusion furnace of 500-650 DEG C, described land diffuses to form binder course；Step 4, the copper-based material of process annealed in step 3 is rolled through for several times, be rolled into required form, be finally processed into required composite contact material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610437235.6A CN106024463A (en) | 2016-06-20 | 2016-06-20 | Processing method of composite contact material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610437235.6A CN106024463A (en) | 2016-06-20 | 2016-06-20 | Processing method of composite contact material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106024463A true CN106024463A (en) | 2016-10-12 |
Family
ID=57089178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610437235.6A Pending CN106024463A (en) | 2016-06-20 | 2016-06-20 | Processing method of composite contact material |
Country Status (1)
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| CN (1) | CN106024463A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102054598A (en) * | 2011-01-13 | 2011-05-11 | 中希合金有限公司 | Silver copper oxide/copper composite electrical contact material and preparation process thereof |
| CN102294485A (en) * | 2011-08-25 | 2011-12-28 | 哈尔滨东大高新材料股份有限公司 | composite electric contact material and preparation method thereof |
| CN102978560A (en) * | 2012-11-30 | 2013-03-20 | 浙江帕特尼触头有限公司 | Preparation process of silver/copper base composite contact material |
| CN103290349A (en) * | 2013-06-08 | 2013-09-11 | 西安工程大学 | Preparation method of silver-based metal oxide/copper composite contact alloy |
| CN103722041A (en) * | 2013-12-26 | 2014-04-16 | 浙江科扬新材料科技有限公司 | Manufacturing equipment and method of compound silver belt |
| CN105483598A (en) * | 2015-12-03 | 2016-04-13 | 浙江帕特尼触头有限公司 | Silver-copper base composite contact material and preparing technology |
-
2016
- 2016-06-20 CN CN201610437235.6A patent/CN106024463A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102054598A (en) * | 2011-01-13 | 2011-05-11 | 中希合金有限公司 | Silver copper oxide/copper composite electrical contact material and preparation process thereof |
| CN102294485A (en) * | 2011-08-25 | 2011-12-28 | 哈尔滨东大高新材料股份有限公司 | composite electric contact material and preparation method thereof |
| CN102978560A (en) * | 2012-11-30 | 2013-03-20 | 浙江帕特尼触头有限公司 | Preparation process of silver/copper base composite contact material |
| CN103290349A (en) * | 2013-06-08 | 2013-09-11 | 西安工程大学 | Preparation method of silver-based metal oxide/copper composite contact alloy |
| CN103722041A (en) * | 2013-12-26 | 2014-04-16 | 浙江科扬新材料科技有限公司 | Manufacturing equipment and method of compound silver belt |
| CN105483598A (en) * | 2015-12-03 | 2016-04-13 | 浙江帕特尼触头有限公司 | Silver-copper base composite contact material and preparing technology |
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Application publication date: 20161012 |