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1. 发明专利

JP2008133543A Galvanized steel sheet excellent in pitting corrosion resistance 有权
标题翻译：耐蚀耐腐蚀性优良的钢板
公开(公告)号：JP2008133543A
公开(公告)日：2008-06-12
申请号：JP2008004986
申请日：2008-01-11
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： NAKAKOJI HISATADA , HAMAHARA KYOKO , MOCHIZUKI KAZUO
IPC分类号： C23C22/22 , C23C22/18
摘要： PROBLEM TO BE SOLVED: To inexpensively provide a galvanized steel sheet used for an automotive body in particular, excellent in pitting corrosion resistance after electrodeposition coating.
SOLUTION: The manufacturing method of the galvanized steel sheet includes forming a zinc phosphate coating layer containing proper amounts of Mg, Ni, and Mn by immersing the steel sheet, after surface galvanization, into treatment liquid containing 3-50 g/L of Mg2
+ , 0.1-10.0 g/L of Ni
2+ and 0.3-10.0 g/L of Mn
2+ . The zinc phosphate coating layer contains 2.0 to 7.0 percent by weight of Mg, 0.1 to 1.4 percent by weight of Ni, and 0.5 to 5.0 percent by weight of Mn. Furthermore, the contents of Mn and Ni satisfy the following relational expression (1): [Mn]≤[Ni]×11.4, wherein [Mn] represents the Mn content in percent by weight and [Ni] the Ni content in percent by weight.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了廉价地提供用于汽车车身的镀锌钢板，在电沉积涂覆之后具有优异的耐点腐蚀性。解决方案：镀锌钢板的制造方法包括通过将表面镀锌后的钢板浸渍到含有3-50g / L的处理液中而形成含有适量Mg，Ni和Mn的磷酸锌涂层的Mg2 + SP + +，SP为0.1-10.0g / L，Mn 2 + 为0.3-10.0g / L。磷酸锌被膜层含有2.0〜7.0重量％的Mg，0.1〜1.4重量％的Ni和0.5〜5.0重量％的Mn。此外，Mn和Ni的含量满足以下关系式（1）：[Mn]≤[Ni]×11.4，[Mn]表示Mn含量，以重量％计，[Ni] 。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2008156757A Tinned steel sheet 有权
标题翻译：钢板
公开(公告)号：JP2008156757A
公开(公告)日：2008-07-10
申请号：JP2008036416
申请日：2008-02-18
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： SHIGEKUNI TOMOFUMI , NAKAKOJI HISATADA , MOCHIZUKI KAZUO
IPC分类号： C23C28/00
摘要： PROBLEM TO BE SOLVED: To provide a surface-treated steel sheet for can used for DI cans, food cans, drink cans or the like, particularly, to provide a tinned steel sheet having excellent workability, coating material adhesion, yellowing resistance and rust resistance.
SOLUTION: The upper layer of a tinning layer formed on the surface of a steel sheet is provided with a chemical film comprising P and Sn, the P content in the chemical film is controlled to the range of 0.5 to 100 mg/m
2 by the coating weight thereof, and the Sn content is controlled to the range of 0.01 to 60 by a ratio of its coating weight to the P coating weight. Further, the upper layer of the chemical film is provided with a silane coupling layer, and the coating weight of the silane coupling layer is controlled to the range of 0.1 to 250 mg/m
2 by the Si coating weight.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于DI罐，食品罐，饮料罐等的表面处理钢板，特别是提供具有优异的可加工性，涂料附着力，耐黄变性的镀锡钢板防锈。解决方案：在钢板表面形成的镀锡层的上层设置有包含P和Sn的化学膜，化学膜中的P含量控制在0.5至100mg / m 2的范围内 2 ，通过涂布重量与P涂层重量的比例将Sn含量控制在0.01至60的范围内。此外，化学膜的上层设置有硅烷偶联层，并且通过Si涂层将硅烷偶联层的涂层重量控制在0.1至250mg / m 2 / SP>的范围内重量。版权所有（C）2008，JPO＆INPIT

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