Electric contact material and electric contact using said materi

Details Electric contact material and electric contact using said materi Electric contact material and electric contact using said materi

1992-09-25

1994-08-16

Dean, Richard O.

Stock material or miscellaneous articles

All metal or with adjacent metals

Laterally noncoextensive components

428673, 428674, 148431, 200266, C22C 506, H01H 102

Patent

active

053386183

ABSTRACT:
An electric contact material containing Li oxide of 0.01 to 2.0% by weight when represented in terms of the amount of Li, oxide of at least one rare earth element of 0.05 to 0.18% by weight when represented in terms of the amount of the rare earth element, and Ag or Ag alloy as the remaining portion; an electric contact material containing Li oxide of 0.01 to 2.0% by weight when represented in terms of the amount of Li, at least one rare earth element of 0.05 to 0.18% by weight when represented in terms of the amount of the rare earth element, at least one element selected from a group consisting of In, Sn, Zn, Mn, Pd, Sb, Cu, Mg, Pb, Cd, Cr and Bi by an amount of 0.1 to 1.0% by weight (however, in the case of Zn and Mn, the amount is set less than 0.5% by weight), and/or at least one element selected from a group consisting of Fe, Ni and Co by an amount of 0.03 to 0.6% by weight, and Ag as the remaining portion; and an electric contact formed by using the above material. It is excellent in the arc resistance, wear resistance an lubricity in a small current region and is suitable as the material for a slide contact and rotary slide contact.

REFERENCES:
patent: 2221285 (1940-11-01), Hensel et al.
patent: 4374668 (1983-02-01), Desai et al.
patent: 4456662 (1984-06-01), Malikowski et al.
World Patents Index, Week 7711, Derwent Publications Ltd., London, GB; AN 77-18940Y (11) of JP-A-52 013 689, Feb. 1977.
Patent Abstracts of Japan, vol. 007, No. 205, Sep. 9, 1983, of JP-A-58 104 141 (Tanaka Kikinzoku), Jun. 2, 1983, Japan.
World Patents Index Latest, Week 8506, Derwent Publications Ltd. London, GB; AN 85-035087 of JP-A-59 229 440 (Tanaka Kikinzoku), Dec. 22, 1984.
Patent Abstracts of Japan, vol. 007, No. 205, Sep., 9, 1983 of JP-A-58 104 139 (Tanaka Kikinzoku), Jun. 21, 1983, Japan.

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