Title:
PRETREATMENT METHOD FOR COATING AND FORMED ARTICLE
Document Type and Number:
Japanese Patent JP3778791
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a pretreatment method for electrodeposition coating for a metallic molding by which, in electrodeposition coating, the surface of a coating film is made uniform, and its good appearance can be obtained.
SOLUTION: In this pretreatment method for coating, a galvanized steel sheet coated with a phosphate film with a film amount of 0.1 to 2 g/m2 is molded, and the above molding is subjected to phosphate film conversion treatment and water washing after the chemical conversion. The pH of the water washing solution in the water washing after the chemical conversion is controlled to the range of 4 to 7.
Inventors:
Fumihisa Kishimoto
Toshihiro Yoshida
Kiyokazu Ishizuka
Hiroshi Nakamura
Kimitaka Hayashi
Tamotsu Nakata
Aino Iino
Hiura Naruaki
Toshihiro Yoshida
Kiyokazu Ishizuka
Hiroshi Nakamura
Kimitaka Hayashi
Tamotsu Nakata
Aino Iino
Hiura Naruaki
Application Number:
JP2000338630A
Publication Date:
May 24, 2006
Filing Date:
November 07, 2000
Export Citation:
Assignee:
Mazda Corporation Inc
Nippon Steel Corporation
NIPPON PAINT CO.,LTD.
Nippon Steel Corporation
NIPPON PAINT CO.,LTD.
International Classes:
B05D3/10; C25D13/20; B05D7/14; C23C28/00; (IPC1-7): C25D13/20; B05D3/10; B05D7/14; C23C28/00
Domestic Patent References:
| JP60075367A | ||||
| JP7278891A | ||||
| JP8067989A | ||||
| JP7173687A |
Attorney, Agent or Firm:
Yasuo Yasutomi
Shinya Furuya
Shinya Furuya