JPS55134146A - Silver-cadmium oxide type electrical contact material - Google Patents
Silver-cadmium oxide type electrical contact materialInfo
- Publication number
- JPS55134146A JPS55134146A JP4046579A JP4046579A JPS55134146A JP S55134146 A JPS55134146 A JP S55134146A JP 4046579 A JP4046579 A JP 4046579A JP 4046579 A JP4046579 A JP 4046579A JP S55134146 A JPS55134146 A JP S55134146A
- Authority
- JP
- Japan
- Prior art keywords
- electrical contact
- contact material
- alloy
- silver
- oxides
- 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
Abstract
PURPOSE: To obtain an electrical contact material having superior fusion bonding resistance and workability and undergoing little abnormal consumption by adding a specified slight amt. of Co to an Ag-Cd-Sn alloy followed by internal oxidation.
CONSTITUTION: An alloy consisting of Cd 1W20%, Sn 0.1W5%, Co 0.001W0.5% and the balance Ag is refined by melting Cd and Sn in a graphite crucible and adding Co and Ag in this order followed by melting. This molten alloy is cast, and the resulting ingot is worked into predetermined form and internally oxidized at 750°C under an oxygen partial press. of 3 atm. Thus, the Cd and Sn are selectively oxidized, and the oxides are dispersed in the Ag matrix. The Co added results in grain refining after the internal oxidation, and the oxides are distributed finely and uniformly to give an electrical contact material having superior workability, fusion bonding resistance and consumption resistance.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4046579A JPS55134146A (en) | 1979-04-04 | 1979-04-04 | Silver-cadmium oxide type electrical contact material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4046579A JPS55134146A (en) | 1979-04-04 | 1979-04-04 | Silver-cadmium oxide type electrical contact material |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55134146A true JPS55134146A (en) | 1980-10-18 |
Family
ID=12581374
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4046579A Pending JPS55134146A (en) | 1979-04-04 | 1979-04-04 | Silver-cadmium oxide type electrical contact material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55134146A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0440340A2 (en) * | 1990-01-29 | 1991-08-07 | Chugai Denki Kogyo Kabushiki Kaisha | Electrical contact materials and method of manufacturing the same |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4883392A (en) * | 1972-02-15 | 1973-11-07 | ||
JPS50135584A (en) * | 1974-04-01 | 1975-10-27 | ||
JPS52146719A (en) * | 1976-05-31 | 1977-12-06 | Mitsubishi Marorii Yakin Kougi | Method of making contact materials of oxide dispersion type silver alloy wires |
-
1979
- 1979-04-04 JP JP4046579A patent/JPS55134146A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4883392A (en) * | 1972-02-15 | 1973-11-07 | ||
JPS50135584A (en) * | 1974-04-01 | 1975-10-27 | ||
JPS52146719A (en) * | 1976-05-31 | 1977-12-06 | Mitsubishi Marorii Yakin Kougi | Method of making contact materials of oxide dispersion type silver alloy wires |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0440340A2 (en) * | 1990-01-29 | 1991-08-07 | Chugai Denki Kogyo Kabushiki Kaisha | Electrical contact materials and method of manufacturing the same |
EP0440340A3 (en) * | 1990-01-29 | 1992-05-27 | Chugai Denki Kogyo Kabushiki Kaisha | Electrical contact materials and method of manufacturing the same |
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