Title:
MULTILAYER PLATED FUEL LINE PARTS FOR AUTOMOBILE
Document Type and Number:
WIPO Patent Application WO/2004/009871
Kind Code:
A1
Abstract:
Automobile fuel line parts having a steel base material and, applied on the surface thereof, a multilayer plating layer having a chromate coating layer as an uppermost layer, characterized in that the multilayer plating layer comprises a Zn-Ni alloy plating film as a lowermost layer, a zinc plating film as an intermediate layer, and a trivalent chromate coating film as an uppermost layer. The parts are free of hexavalent chromium and have a surface protecting coating film comprising trivalent chromium and also having a surface exhibiting improved smoothness.
Inventors:
MATSUBARA NORIFUMI (JP)
Application Number:
PCT/JP2003/009203
Publication Date:
January 29, 2004
Filing Date:
July 18, 2003
Export Citation:
Assignee:
SAN O IND CO (JP)
MATSUBARA NORIFUMI (JP)
MATSUBARA NORIFUMI (JP)
International Classes:
F02M37/00; C23C22/53; C23C28/00; C25D5/10; C25D5/26; C25D5/48; C25D7/00; C25D7/04; F02M55/02; F02M61/16; (IPC1-7): C23C22/53; C23C28/00
Foreign References:
| JPH05106058A | 1993-04-27 | |||
| EP1318213A2 | 2003-06-11 |
Other References:
See also references of EP 1536037A4
Attorney, Agent or Firm:
Yoshitake, Kenji (Room 323 Fuji Bldg., 2-3, Marunouchi 3-chom, Chiyoda-ku Tokyo, JP)
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