Stock material or miscellaneous articles – Composite – Of inorganic material
Patent
1996-01-11
1998-03-31
Zirker, Daniel
Stock material or miscellaneous articles
Composite
Of inorganic material
428408, 428569, 428697, 427446, B32B 1900, B05D 108
Patent
active
057336687
ABSTRACT:
The present invention discloses a WC--Co alloy in which substantially only the WC particles of a surface layer or components other than metals belonging to the iron group and only the WC particles are exposed, and (a) an average particle diameter of the WC particles of the surface layer is larger than that of the WC particles of the interior, and/or (b) a surface hardness is higher than that of the interior. The WC--Co alloy itself is Used as a stock for a cutting tool or an abrasion and sliding resistant tool, or the alloy is used as a substrate and a hard carbon-layer excellent in adhesive strength is coated on the surface of the matrix.
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Ikeda Tsutomu
Kameoka Seiji
Sato Toshiki
Kabushiki Kaisha Kobe Seiko Sho
Zirker Daniel
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