JPS55134145A - Electrical contact material - Google Patents
Electrical contact materialInfo
- Publication number
- JPS55134145A JPS55134145A JP4223979A JP4223979A JPS55134145A JP S55134145 A JPS55134145 A JP S55134145A JP 4223979 A JP4223979 A JP 4223979A JP 4223979 A JP4223979 A JP 4223979A JP S55134145 A JPS55134145 A JP S55134145A
- Authority
- JP
- Japan
- Prior art keywords
- electrical contact
- less
- oxide
- sintered
- dispersing
- 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.)
- Granted
Links
Landscapes
- Contacts (AREA)
Abstract
PURPOSE: To obtain an electrical contact material with superior fusion bonding resistance and superior transfer consumption characteristics by dispersing In oxide and Bi-Sn oxide in Ag matrix in a specified ratio.
CONSTITUTION: A metal mixt. consisting of Bi 1.5W5%, In 3W8%, Sn 0.5W4% (less than twice as much as Bi) and the balance Ag or further contg. Ni or Co 0.05W0.5% is melted in an inert gas atmosphere and cast in a metal mold. Since this alloy is very brittle, it is crushed to flakes of 1mm or less in thickness with a rolling mill. This powder is heated in air at 700°C for 60hr. to selectively oxidize the Bi, In and Sn, thereby dispersing oxide particles of In2O3 and Bi2Sn2O7. This material is then converted into chips of 0.2mm or less in thickness, washed, filled in a tubular mold, press-molded, and sintered at 780°C. This sintered body is further sintered under press., worked into a wire rod of 3mm in diameter by warm extrusion at 550°C, and finally annealed at 700°C for 1hr. to obtain an electrical contact pin.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54042239A JPS6018737B2 (en) | 1979-04-06 | 1979-04-06 | electrical contact materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54042239A JPS6018737B2 (en) | 1979-04-06 | 1979-04-06 | electrical contact materials |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55134145A true JPS55134145A (en) | 1980-10-18 |
JPS6018737B2 JPS6018737B2 (en) | 1985-05-11 |
Family
ID=12630469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54042239A Expired JPS6018737B2 (en) | 1979-04-06 | 1979-04-06 | electrical contact materials |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6018737B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5884949A (en) * | 1981-11-16 | 1983-05-21 | Tanaka Kikinzoku Kogyo Kk | Sliding contact material |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109231259B (en) * | 2018-10-09 | 2020-11-13 | 湖南工业大学 | Method for preparing ultrafine ITO powder from metal indium and metal tin |
-
1979
- 1979-04-06 JP JP54042239A patent/JPS6018737B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5884949A (en) * | 1981-11-16 | 1983-05-21 | Tanaka Kikinzoku Kogyo Kk | Sliding contact material |
JPH0260745B2 (en) * | 1981-11-16 | 1990-12-18 | Tanaka Precious Metal Ind |
Also Published As
Publication number | Publication date |
---|---|
JPS6018737B2 (en) | 1985-05-11 |
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