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Title:
金属炭素質ブラシおよびその製造方法
Document Type and Number:
Japanese Patent JP6456142
Kind Code:
B2
Abstract:
A carbonaceous material is fabricated by kneading of carbon powder and a binder. A particle diameter of the carbonaceous material is adjusted after the fabricated carbonaceous material is granulated. A brush material is fabricated by mixing of the carbonaceous material of which the particle diameter is adjusted and metal powder. A brush is completed by forming and thermal processing of the fabricated brush material. In this case, the particle diameter of the carbonaceous material is adjusted in a constant range before the carbonaceous material and the metal powder are mixed such that an average particle diameter of the carbonaceous material in the brush is not less than 300 µm and not more than 2000 µm. Alternatively, a ratio of the volume of the carbonaceous material having the particle diameter of not less than 300 µm to the volume of the brush is adjusted to not less than 50%.

Inventors:
Morita Shunsuke
Hozumi Fumihiro
Kaichi Kagawa
Hidenori Shirakawa
Application Number:
JP2014520949A
Publication Date:
January 23, 2019
Filing Date:
June 17, 2013
Export Citation:
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Assignee:
Toyo Tanso Co., Ltd.
International Classes:
H02K13/00; H01R39/20; H01R39/26
Domestic Patent References:
JP6447245A
JP767294A
JP2009148034A
JP2007174732A
Attorney, Agent or Firm:
Yoshito Fukushima