JPS55138043A - Electric contact material - Google Patents
Electric contact materialInfo
- Publication number
- JPS55138043A JPS55138043A JP4469079A JP4469079A JPS55138043A JP S55138043 A JPS55138043 A JP S55138043A JP 4469079 A JP4469079 A JP 4469079A JP 4469079 A JP4469079 A JP 4469079A JP S55138043 A JPS55138043 A JP S55138043A
- Authority
- JP
- Japan
- Prior art keywords
- melted
- added
- electric contact
- contact material
- alloy
- 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 4
- 229910045601 alloy Inorganic materials 0.000 abstract 3
- 239000000956 alloy Substances 0.000 abstract 3
- 229910052797 bismuth Inorganic materials 0.000 abstract 3
- 239000002184 metal Substances 0.000 abstract 3
- 229910052751 metal Inorganic materials 0.000 abstract 3
- 229910017980 Ag—Sn Inorganic materials 0.000 abstract 2
- 230000008021 deposition Effects 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 229910002804 graphite Inorganic materials 0.000 abstract 1
- 239000010439 graphite Substances 0.000 abstract 1
- 229910052745 lead Inorganic materials 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052718 tin Inorganic materials 0.000 abstract 1
Landscapes
- Contacts (AREA)
Abstract
PURPOSE: To provide an electric contact material having good resistance to deposition, less consumption and a small contact resistance by a method wherein Ca-Bi, Ca-Pb cpds. are added to Ag-Sn based alloy and oxidized internally.
CONSTITUTION: Ag is melted in a graphite crucible to which about 6% of Sn is added and melted to form molten metal of Ag-Sn alloy. Separately, Ca-Bi or Ca-Pb based intermetallic cpd. is melted in Ar atmosphere, is solidified, and crushed to proper size. Into the molten metal, either intermetallic cpd. in amount of 0.1W 1.5wt% is added, together with 0.05W1.0wt% of Ni metal additionally. The formed alloy is oxidized internally under oxygen atmosphere to selectively oxidize Sn, Ca-Bi, Ca-Pb and Ni. The process provides an electric contact material having a good resistance to consumption and deposition and a small contact resistance, and as such the material can be effectively used for circuit breakers or solenoid switches.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4469079A JPS55138043A (en) | 1979-04-11 | 1979-04-11 | Electric contact material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4469079A JPS55138043A (en) | 1979-04-11 | 1979-04-11 | Electric contact material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55138043A true JPS55138043A (en) | 1980-10-28 |
Family
ID=12698410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4469079A Pending JPS55138043A (en) | 1979-04-11 | 1979-04-11 | Electric contact material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55138043A (en) |
-
1979
- 1979-04-11 JP JP4469079A patent/JPS55138043A/en active Pending
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