发明名称 |
ZINC-BASE GALVANIZED SHEET STEEL EXCELLENT IN PRESS-FORMABILITY, PHOSPHATABILITY, ETC. AND PROCESS FOR PRODUCING THE SAME |
摘要 |
A zinc-base galvanized sheet steel which comprises zinc-base plated sheet steel and, formed on the plating layer surface, an inorganic covering layer which contains at least one inorganic oxide in an amount of 1-500 mg/m2 in terms of the weight of metallic elements exclusive of oxygen and optionally contains at least one oxoacid or inorganic oxide colloid in an amount of 1-500 mg/m2 and further, as desired for improving weldability, a Zn oxide film formed between the inorganic covering layer and the zinc-base plating layer, and the process for producing said galvanized sheet steel.
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申请公布号 |
CA2046288(A1) |
申请公布日期 |
1991.06.13 |
申请号 |
CA19902046288 |
申请日期 |
1990.12.11 |
申请人 |
NIPPON STEEL CORPORATION |
发明人 |
KANAMARU, TATSUYA;MORITA, JUNICHI;ARAI, KATSUTOSHI;SUZUKI, SHINICHI |
分类号 |
C23C22/08;C23C22/53;(IPC1-7):C23C22/06;C23C22/58;C25D9/08;C25D11/00 |
主分类号 |
C23C22/08 |
代理机构 |
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地址 |
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