Title:
耐摩耗性を改良し静摩擦を低減した表面硬化ステンレス鋼
Document Type and Number:
Japanese Patent JP2006516677
Kind Code:
A
Abstract:
The invention relates to the use of PVD technique for the application of a low static friction and wear resistant coating consisting essentially of titanium nitride or a diamond-like carbon-DLC, with or without an addition of tungsten carbide, on a stainless steel, in one and the same operation as the surface hardening of the stainless steel. In this way, in one single operation, a low static friction is obtained on a very hard and wear resistant surface. Moreover, the dimensions of the work-piece are maintained unaltered, which makes the invention very useful in the production of, e.g., cam followers, cylinder tubes and piston rods for shock absorbers. The used stainless steel has the following composition (in weight %): carbon max about 0.1; nitrogen max about 0.1; copper from about 0.5 to about 4; chromium from about 10 to about 14; molybdenum from about 0.5 to about 6; nickel from about 7 to about 11; cobalt 0 to about 9; tantalum max about 0.1; niobium max about 0.1; vanadium max 0.1; tungsten max about 0.1; aluminum from about 0.05 to about 0.6; titanium from about 0.4 to about 1.4; silicon max about 0.7; manganese max about 1.0; iron balance, and normally occurring usual steelmaking additions and impurities.
Inventors:
Belirund, Golan
Application Number:
JP2006500744A
Publication Date:
July 06, 2006
Filing Date:
January 12, 2004
Export Citation:
Assignee:
Sandvik Intellectual Property Handelsboroag
International Classes:
C22C38/00; B32B15/04; C21D1/06; C22C38/42; C22C38/52; C23C14/00; C23C14/06; C21D
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Nagasaka Tomoyasu
Hiroshi Kamematsu
Masaya Nishiyama
Takashi Ishida
Tetsuji Koga
Nagasaka Tomoyasu
Hiroshi Kamematsu
Masaya Nishiyama