| 发明名称 | Surface-treated steel sheet and method of manufacturing the same | ||
| 摘要 | A surface-treated steel sheet includes: a steel sheet; and a coated layer which is formed on one surface or both surfaces of the steel sheet and includes zinc and vanadium, wherein the coated layer has a vanadium content of 1% or higher and 20% or less and a coating weight of 3 g/m2 or higher and 40 g/m2 or less, and has a plurality of dendritic arms that are grown in a thickness direction of the steel sheet, and a ratio x/y of a content x of vanadium that is present outside the arms to a content y of vanadium that is present inside the arms is 1.1 or higher and 3.0 or less in terms of vanadium element. | ||
| 申请公布号 | US9428823(B2) | 申请公布日期 | 2016.08.30 |
| 申请号 | US201214007564 | 申请日期 | 2012.03.29 |
| 申请人 | NIPPON STEEL & SUMITOMO METAL CORPORATION | 发明人 | Shibao Fumio;Kaneto Taihei;Fuda Masahiro;Kimata Yoshio |
| 分类号 | B32B15/01;C23C2/06;C09D5/08;C25D3/56;C25D5/36;C25D5/48;C23C30/00;C22C38/00;B05D7/14;B05D7/00 | 主分类号 | B32B15/01 |
| 代理机构 | Kenyon & Kenyon LLP | 代理人 | Kenyon & Kenyon LLP |
| 主权项 | 1. A surface-treated steel sheet comprising: a steel sheet; and a coated layer which is formed on one surface or both surfaces of the steel sheet and includes zinc and vanadium, wherein the coated layer has a vanadium content of 1% or higher and 20% or less and a coating weight of 3 g/m2 or higher and 40 g/m2 or less, and has a plurality of dendritic arms that are grown in a thickness direction of the steel sheet, and wherein a ratio x/y of a content x of the vanadium that is present outside the arms to a content y of the vanadium that is present inside the arms is 1.1 or higher and 3.0 or less in terms of the vanadium element. | ||
| 地址 | Tokyo JP | ||