Title:
GALVANNEALED STEEL SHEET EXCELLENT IN ELECTRODEPOSITION COATING CHARACTERISTIC
Document Type and Number:
Japanese Patent JP2959434
Kind Code:
B2
Abstract:
PURPOSE: To provide a galvannealed steel sheet excellent, in particular, in sur face quality at the time of electrodeposition coating.
CONSTITUTION: At the time of producing a galvannealed steel sheet, a chemical conversion coating of phosphoric acid type is formed so that coating rate becomes (1.0 to 5.0)g/m2, and then coating is applied to the coating. Further, if necessary, the worn-out of plating (slide) part at the surface is regulated to >5-80% based on the whole surface area, and also plating surface roughness Ra is regulated to 0.3-1.0μm.
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Inventors:
TANNO YASUYUKI
KAWANISHI YOSHIHIRO
KAWANISHI YOSHIHIRO
Application Number:
JP12818795A
Publication Date:
October 06, 1999
Filing Date:
May 26, 1995
Export Citation:
Assignee:
SUMITOMO KINZOKU KOGYO KK
International Classes:
C25D13/20; C23C2/26; C23C2/28; C23C22/00; C23C28/00; (IPC1-7): C25D13/20; C23C2/26; C23C2/28; C23C22/00; C23C28/00
Domestic Patent References:
| JP63219587A | ||||
| JP483896A | ||||
| JP1316491A | ||||
| JP5441236A | ||||
| JP7126887A | ||||
| JP3170694A |
Attorney, Agent or Firm:
Hirose Shoichi