JPS56127702A - Production of composite electric contact material - Google Patents
Production of composite electric contact materialInfo
- Publication number
- JPS56127702A JPS56127702A JP3050680A JP3050680A JPS56127702A JP S56127702 A JPS56127702 A JP S56127702A JP 3050680 A JP3050680 A JP 3050680A JP 3050680 A JP3050680 A JP 3050680A JP S56127702 A JPS56127702 A JP S56127702A
- Authority
- JP
- Japan
- Prior art keywords
- electric contact
- composite electric
- alloy
- mixture
- high melting
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 title abstract 3
- 239000002131 composite material Substances 0.000 title abstract 2
- 229910052804 chromium Inorganic materials 0.000 abstract 5
- 229910052742 iron Inorganic materials 0.000 abstract 5
- 229910052759 nickel Inorganic materials 0.000 abstract 5
- 239000000843 powder Substances 0.000 abstract 3
- 229910017944 Ag—Cu Inorganic materials 0.000 abstract 2
- 229910045601 alloy Inorganic materials 0.000 abstract 2
- 239000000956 alloy Substances 0.000 abstract 2
- 229910052802 copper Inorganic materials 0.000 abstract 2
- 238000002844 melting Methods 0.000 abstract 2
- 230000008018 melting Effects 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 150000002739 metals Chemical class 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 229910052709 silver Inorganic materials 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000010297 mechanical methods and process Methods 0.000 abstract 1
- 230000005226 mechanical processes and functions Effects 0.000 abstract 1
- 230000001376 precipitating effect Effects 0.000 abstract 1
- 239000006104 solid solution Substances 0.000 abstract 1
Landscapes
- Powder Metallurgy (AREA)
- Manufacture Of Switches (AREA)
- Contacts (AREA)
Abstract
PURPOSE: To uniformly distribute high melting metals in Ag-Cu alloy to enhance its antisticking property by applying thermal and mechanical processes to a mixture of high melting metals consisting of Ag and Cu as well as Fe, Ni, Cr, and Co.
CONSTITUTION: Ag and Cu powders (0.1W80wt%) are mixed with one or more of Fe, Ni, Cr, and Co powder (2W20wt%) and the mixture is melted and injected to form a compound powder in which Fe, Ni, Cr, and Co exist as solid solution in Ag-Cu alloy. This is then compressed and sintered, precipitating Fe, Ni, Cr, and Co. Finally, a plastic deformation process is applied to form a structure in which Fe, Ni, Cr, and Co and finely are uniformly distributed. In this manner, the process provides a composite electric contact material excellent in antisticking property, forming little oxide film on contact surface, enabling to open and close with a stable contact resistance. The material, therefore, is particularly useful in applying in intermediate current zone.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3050680A JPS56127702A (en) | 1980-03-11 | 1980-03-11 | Production of composite electric contact material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3050680A JPS56127702A (en) | 1980-03-11 | 1980-03-11 | Production of composite electric contact material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56127702A true JPS56127702A (en) | 1981-10-06 |
Family
ID=12305695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3050680A Pending JPS56127702A (en) | 1980-03-11 | 1980-03-11 | Production of composite electric contact material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56127702A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019181650A1 (en) * | 2018-03-19 | 2019-09-26 | 日本電産株式会社 | Electrical contact powder, electrical contact material, electrical contact, and method for producing electrical contact powder |
| JP2020200504A (en) * | 2019-06-10 | 2020-12-17 | 日本電産株式会社 | Electric contact material powder, and method of producing electric contact material powder |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5360360A (en) * | 1976-11-11 | 1978-05-30 | Tanaka Precious Metal Ind | Method of producing composite silverrnickel powder |
-
1980
- 1980-03-11 JP JP3050680A patent/JPS56127702A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5360360A (en) * | 1976-11-11 | 1978-05-30 | Tanaka Precious Metal Ind | Method of producing composite silverrnickel powder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019181650A1 (en) * | 2018-03-19 | 2019-09-26 | 日本電産株式会社 | Electrical contact powder, electrical contact material, electrical contact, and method for producing electrical contact powder |
| JP2020200504A (en) * | 2019-06-10 | 2020-12-17 | 日本電産株式会社 | Electric contact material powder, and method of producing electric contact material powder |
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