Title:
METHOD FOR GALVANIZING SILICON-CONTAINING STEEL SHEET
Document Type and Number:
Japanese Patent JP2707928
Kind Code:
B2
Abstract:
PURPOSE: To improve the plating property of a high-Si steel sheet.
CONSTITUTION: The surface of a steel sheet contg. ≥0.2wt.% Si is previously electroplated (at 5-70mg/m2) with ≥1 kind among Ni, Fe, Cu and Co, and the steel sheet is then heated at ≤700°C in an oxidizing atmosphere to form iron oxide on the surface (at 0.3-1.5g/m2 expressed in terms of Fe), reduced at 500-650°C and then galvanized. The galvanized steel sheet can be further alloyed. Consequently, the completely galvanized steel sheet and galvannealed steel sheet excellent in surface quality is produced.
Inventors:
Masahiko Hori
Toshio Nakamori
Toshio Nakamori
Application Number:
JP28132992A
Publication Date:
February 04, 1998
Filing Date:
October 20, 1992
Export Citation:
Assignee:
SUMITOMO METAL INDUSTRIES,LTD.
International Classes:
C23C2/02; C23C2/06; C23C28/00; C23C28/02; C25D7/06; (IPC1-7): C23C28/02; C23C2/02; C23C2/06; C23C28/00; C25D7/06
Domestic Patent References:
| JP6428351A | ||||
| JP5770268A | ||||
| JP5776176A | ||||
| JP55122865A |
Attorney, Agent or Firm:
Terutaka Hogami
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