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31. 发明专利

JP2009265089A Corrosion resistance evaluation method for surface-treated steel sheet 审中-公开
标题翻译：表面处理钢板的耐腐蚀性评估方法
公开(公告)号：JP2009265089A
公开(公告)日：2009-11-12
申请号：JP2009075486
申请日：2009-03-26
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： SUZUKI SACHIKO , MIZUNO DAISUKE , FUJITA SAKAE
IPC分类号： G01N17/02 , G01N1/28
摘要： PROBLEM TO BE SOLVED: To provide a corrosion resistance evaluation method for surface-treated steel sheets having high correlation, with respect to actual corrosion of an automobile door material.
SOLUTION: Draw bead working and plane sliding working are applied to the surface-treated steel sheets, and the different kinds or the same kind of surface treated steel sheets, after applying the working, are made to overlap to form a steel sheet laminated part. The steel sheets forming the steel sheet laminated part are used as a test piece and presented to a corrosive environment to evaluate corrosion resistance. It is preferable that the steel sheet laminated part be formed, by joining the different kinds or the same kind of surface treated steel sheets by resistance welding. After the steel sheet laminated part is formed to imitate an actual automobile structure, chemical conversion treatment and electrode position coating are applied to the steel sheet laminated part, to use it as the test piece; and this test piece is preferably presented to the corrosive environment to evaluate corrosion resistance. A corrosion test can be performed in an SAE J2334 120 cycle, for instance.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供对于汽车门材料的实际腐蚀具有高相关性的表面处理钢板的耐腐蚀性评估方法。＆lt; P＆gt;解决方案：对表面处理钢板施加拉伸加工和平面滑动加工，并且在施加加工后，不同种类或相同种类的表面处理钢板被重叠以形成钢板层压零件。形成钢板层压部件的钢板用作试件，并呈现在腐蚀性环境中以评价耐腐蚀性。通过电阻焊接不同种类或相同种类的表面处理钢板，优选形成钢板层压部。在形成钢板层压部件以模拟实际的汽车结构之后，将化学转化处理和电极位置涂布施加到钢板层压部件上，将其用作试件; 并且该测试件优选地呈现在腐蚀环境中以评估耐腐蚀性。例如，可以在SAE J2334 120循环中进行腐蚀测试。版权所有（C）2010，JPO＆INPIT

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