发明名称 |
METHOD FOR MANUFACTURING TIN-PLATED STEEL SHEET |
摘要 |
<p>A tin-plated steel sheet comprising a plating layer containing tin on at least one surface of a steel sheet, and a chemical conversion coating containing P and tin on the plating layer is provided. In the above steel sheet, a coated amount of the chemical conversion coating per surface is 1.0 to 50 mg/m 2 or more in terms of P, an atomic ratio Sn/P obtained from the intensity of a P2p peak and that of a Sn3d peak is 1.0 to 1.5, the intensities being measured at the surface using an x-ray photoelectron spectroscopic method, and an atomic ratio O/P obtained from the intensity of the P2p peak and that of an O1s peak is 4.0 to 9.0. This phosphoric acid-based chemical conversion coating of the tin-plated steel sheet can suppress degradation in performance, which is caused by the growth of a tin oxide layer on the surface, instead of a conventional chromate coating.</p> |
申请公布号 |
EP1942208(A1) |
申请公布日期 |
2008.07.09 |
申请号 |
EP20060822413 |
申请日期 |
2006.10.20 |
申请人 |
JFE STEEL CORPORATION |
发明人 |
SUZUKI, TAKESHI;MAKIISHI, NORIKO;IWASA, HIROKI;TANAKA, TAKUMI;SHIGEKUNI, TOMOFUMI |
分类号 |
C23C22/08;C23C22/74;C23C28/00;C25D3/30;C25D5/10;C25D5/48;C25D9/08;C25D11/36 |
主分类号 |
C23C22/08 |
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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