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Patent Searching and Data


Title:
TITANIUM METAL WEAR-RESISTANT MEMBER
Document Type and Number:
WIPO Patent Application WO/2012/014507
Kind Code:
A1
Abstract:
Disclosed is a wear-resistant member made of titanium metal, which further improves wear resistance such that said member can withstand even harsh sliding friction wear conditions. Specifically disclosed is a wear-resistant member made of titanium metal that has little wear under harsh sliding friction wear conditions such as sliding contact with a carbon fiber reinforced plastic material and that demonstrates the mechanical strength inherent to titanium alloys. The wear-resistant member made of titanium metal is provided with: a carburized layer (2) formed by plasma carburization and disposed on a raw material (1a) for the titanium metal member (1); a polishing surface (2a) with a surface roughness of Ra0.01-0.80 µm disposed on the surface of the carburized layer (2); a titanium oxide layer (3) layered on top of the polishing surface (2a); and a non-crystalline carbon layer (GLC) (4) layered on top of the surface of the titanium oxide layer. A flat GLC layer (4) that does not attract concentration of stress is securely disposed on top of the titanium oxide layer (3). The polishing surface (2a) with a given surface roughness is able to transmit carbon ions by the appropriate adjustment of plasma carburization temperature and carburization gas density; and the plasma carburization conditions are selected and the carburization layer is disposed at or deeper than the polishing surface (2a).

Inventors:
TANAKA Shinichi (11-8-403, Tezukayama 1-chome Abeno-ku, Osaka-sh, Osaka 37, 〒5450037, JP)
Application Number:
JP2011/053246
Publication Date:
February 02, 2012
Filing Date:
February 16, 2011
Export Citation:
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Assignee:
TANAKA LIMITED (10-6, Tezukayamanaka 1-chome Sumiyoshi-ku, Osaka-sh, Osaka 53, 〒5580053, JP)
株式会社田中 (〒53 大阪府大阪市住吉区帝塚山中1丁目10番6号 Osaka, 〒5580053, JP)
International Classes:
C23C28/04; C23C8/36; C23C16/02; C23C16/27
Foreign References:
JP2008231520A2008-10-02
JPH02122075A1990-05-09
JPH1143770A1999-02-16
JP2006307348A2006-11-09
JP2000119842A2000-04-25
Attorney, Agent or Firm:
KAMADA Bunji et al. (18-12, Nipponbashi 1-chome Chuo-ku, Osaka-sh, Osaka 73, 〒5420073, JP)
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Claims: