COMPOSITE CHROMIUM PLATING FILM, AND SLIDING MEMBER HAVING THE FILM AND METHOD FOR MANUFACTURE THEREOF

Title:

COMPOSITE CHROMIUM PLATING FILM, AND SLIDING MEMBER HAVING THE FILM AND METHOD FOR MANUFACTURE THEREOF

Document Type and Number:

WIPO Patent Application WO/2005/073437

Kind Code:

A1

Abstract:

A composite chromium plating film containing hard particles in fine cracks in the form of a network formed on the film, wherein the above fine cracks account for 10 to 20 area % of the surface thereof, the above fine cracks distribute in a density of 1,200 to 2,500 pieces/cm, and the above hard particles are contained in a content of 1 to 15 mass % relative to 100 mass % of the whole plating film. The above composite chromium plating film is excellent in abrasion resistance and the resistance to seizure and also is reduced in the attack to a mating material.

Inventors:

OSHIMI TAKEO (JP)
OKU KIYOTAKA (JP)
TAKIGUCHI KATSUMI (JP)

Application Number:

PCT/JP2005/001277

Publication Date:

August 11, 2005

Filing Date:

January 28, 2005

Export Citation:

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Assignee:

RIKEN KK (JP)
OSHIMI TAKEO (JP)
OKU KIYOTAKA (JP)
TAKIGUCHI KATSUMI (JP)

International Classes:

C25D3/04; C25D3/10; C25D5/14; C25D5/18; C25D7/00; C25D7/10; C25D15/02; F02F5/00; F16J9/26; (IPC1-7): C25D15/02; C25D7/00; F02F5/00; F16J9/26

Foreign References:

JPH10130891A	1998-05-19
JPS50114352A	1975-09-08
JPS5531121A	1980-03-05

Other References: