Stock material or miscellaneous articles – All metal or with adjacent metals – Having metal particles
Patent
1996-12-09
2000-02-22
Nakarani, D. S.
Stock material or miscellaneous articles
All metal or with adjacent metals
Having metal particles
428567, 428568, 428569, 428929, 200264, 200265, 200266, B22F 300, B22F 326, H01H 102
Patent
active
060278218
ABSTRACT:
A contact material for a vacuum interrupter including, a conductive component including at least Cu, and an arc-proof component including at least one selected from the group consisting of carbides of W, Zr, Hf, V and Ti. An amount of the conductive component in the contact material is 40-50 vol %, an amount of the arc-proof component in the contact material is 50-60 vol %, and a grain size of the arc-proof component is 3 .mu.m or less. A total amount of a sintering activator including at least one selected from the group consisting of Co, Fe and Ni melted in the conductive component is 0.1% or less of the amount of the conductive component.
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patent: 5045281 (1991-09-01), Okutomi et al.
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patent: 5420384 (1995-05-01), Okutomi et al.
Chemical Abstracts, AN-92 185004/23, JP-A-90 327555, Nov. 28, 1990.
Kusano Takashi
Okutomi Tsutomu
Seki Tsuneyo
Yamamoto Atsushi
Kabushiki Kaisha Toshiba
Nakarani D. S.
Rickman Holly C.
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