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JPS57126933A - Electreical contact material for sealing-in - Google Patents

Electreical contact material for sealing-in

Info

Publication number
JPS57126933A
JPS57126933A JP56012595A JP1259581A JPS57126933A JP S57126933 A JPS57126933 A JP S57126933A JP 56012595 A JP56012595 A JP 56012595A JP 1259581 A JP1259581 A JP 1259581A JP S57126933 A JPS57126933 A JP S57126933A
Authority
JP
Japan
Prior art keywords
prevent
contact material
sno
sealing
electrical 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.)
Pending
Application number
JP56012595A
Other languages
Japanese (ja)
Inventor
Hitoshi Tsuji
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tanaka Kikinzoku Kogyo KK
Original Assignee
Tanaka Kikinzoku Kogyo KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tanaka Kikinzoku Kogyo KK filed Critical Tanaka Kikinzoku Kogyo KK
Priority to JP56012595A priority Critical patent/JPS57126933A/en
Publication of JPS57126933A publication Critical patent/JPS57126933A/en
Pending legal-status Critical Current

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  • Contacts (AREA)

Abstract

PURPOSE: To produce an electrical contact material for sealing-in which is excellent in not only resistance to fusion but resistance to consumption by adding PbO and SnO2 to a Cu-CdO system which is inexpensive.
CONSTITUTION: Power materials containing 0.5W25wt% of CdO, 0.5W25wt% of PbO and 0.5W25wt% of SnO2 in a total amount of 5W26wt%, the balance being Cu, are mixed with each other, then the mixture is pressed to be a rod-shaped green compact and the compact is sintered in a N2 gas atmosphere at about 850°C. The sintered body is subjected to a heat treatment in a N2 gas atmosphere at about 850°C, a grooved-roll working and swaging repeatedly to produce a rod wire of an electrical contact material for sealed-in type magnet switches, breakers, relays and the like. The component metal oxides, when they are added to copper in the specified limits, prevent the coarsening of crystal grains in the copper base at high temperatures, improve the mechanical strength of the copper base, prevent the deterioration of the material and prevent its consumption due to flaking.
COPYRIGHT: (C)1982,JPO&Japio
JP56012595A 1981-01-30 1981-01-30 Electreical contact material for sealing-in Pending JPS57126933A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56012595A JPS57126933A (en) 1981-01-30 1981-01-30 Electreical contact material for sealing-in

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56012595A JPS57126933A (en) 1981-01-30 1981-01-30 Electreical contact material for sealing-in

Publications (1)

Publication Number Publication Date
JPS57126933A true JPS57126933A (en) 1982-08-06

Family

ID=11809697

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56012595A Pending JPS57126933A (en) 1981-01-30 1981-01-30 Electreical contact material for sealing-in

Country Status (1)

Country Link
JP (1) JPS57126933A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63275323A (en) * 1987-05-08 1988-11-14 Hamamatsu Photonics Kk Diagnostic apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS522113A (en) * 1975-06-24 1977-01-08 Hitachi Ltd Telephone current suplying system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS522113A (en) * 1975-06-24 1977-01-08 Hitachi Ltd Telephone current suplying system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63275323A (en) * 1987-05-08 1988-11-14 Hamamatsu Photonics Kk Diagnostic apparatus

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