发明名称 |
MEHRFACH BESCHICHTETES EISENBLECH. |
摘要 |
A multiple coated composite steel strip having an excellent corrosion (rust) resistance, weldability and paint adhesion, and thus useful for car bodies, comprises a steel strip substrate, a first metal coating layer, a second chromate coating layer formed by an electrolytic chromate treatment method, containing 40 to 120 mg/m<2> of chromium and having a content of Cr2O3 of 45% by weight or more, and a third resinous coating layer comprising a homopolymer or copolymer of acrylic acid, methacrylic acid, acrylic acid ester or methacrylic acid ester and 15% to 40% of colloidal silica particles having a very small size of 1 to 12 m mu m. |
申请公布号 |
DE3861626(D1) |
申请公布日期 |
1991.02.28 |
申请号 |
DE19883861626 |
申请日期 |
1988.05.17 |
申请人 |
NIPPON STEEL CORP., TOKIO/TOKYO, JP |
发明人 |
ODASHIMA, HISAO C/ONIPPON STEEL CORP.;HIRANO, YOSHIHIKO C/ONIPPON STEEL CORP.;HIRAOKA, TERUYOSHI C/ONIPPON STEEL CORP., HIROHATA KU HIMEJI-SHI HYOGO, JP |
分类号 |
B05D7/24;B32B15/08;B32B15/085;C25D11/38;(IPC1-7):B32B15/18 |
主分类号 |
B05D7/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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