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公开(公告)号:US4346143A
公开(公告)日:1982-08-24
申请号:US849292
申请日:1977-11-07
CPC分类号: B23K35/226 , C09D5/106 , Y10T428/26 , Y10T428/31529 , Y10T428/31678
摘要: An improved process for providing corrosion protection to ferrous metal substrates is disclosed. The improved process involves a first treating of the surface of the ferrous metal substrate with nitric acid followed by directly applying to the previously treated surface a zinc-rich coating composition. Upon curing the zinc-rich coating composition, an adherent electroconductive coating is formed. The coating provides excellent corrosion protection and since it is electroconductive, the coating is weldable and can accept a subsequent electrocoat.
摘要翻译: 公开了一种用于向黑色金属基底提供腐蚀保护的改进方法。 改进的方法包括用硝酸首先处理黑色金属基材的表面,然后直接将先前处理的表面施加到富锌涂料组合物上。 固化富锌涂料组合物后,形成粘附的导电涂层。 涂层提供优异的防腐蚀保护,并且由于它是导电的,涂层是可焊接的并且可以接受随后的电泳涂层。