Title:
炭化物で被覆された鋼品およびその製造方法
Document Type and Number:
Japanese Patent JP3747373
Kind Code:
B2
Abstract:
Chain parts and other steel articles are provided with hard, wear-resistant carbide coatings by tumbling them in a heated retort with a particulate mix which includes a source of vanadium and/or niobium. The steel substrate comprises a steel having at least 0.2% carbon, preferably 0.7-1.2%. Where the chromium content of the steel is 4-12%, preferably 4-8%, the chemical deposition process includes drawing a small amount of chromium from the steel substrate into the vanadium or niobium carbide coating, where it is distributed substantially homogeneously, helping to provide adhesion strength to the coating.
Inventors:
Won Yu Min
Yoshito Hanayama
Doug Fonnell
Naozumi Tada
Kunihiko Mishima
Yoshito Hanayama
Doug Fonnell
Naozumi Tada
Kunihiko Mishima
Application Number:
JP2002507084A
Publication Date:
February 22, 2006
Filing Date:
June 26, 2001
Export Citation:
Assignee:
Borg Warner Incorporated
International Classes:
B21L19/00; C23C24/08; C23C12/02; C23C16/32; C23C20/08; C23C24/04; C23C26/00; F16G13/04; F16G13/06
Domestic Patent References:
| JP10169723A | ||||
| JP60258470A | ||||
| JP8060291A |
Attorney, Agent or Firm:
Kenichi Takasaki