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    • 3. 发明专利
    • Treatment method with trivalent chromium, additive for trivalent chromium liquid, and member obtained through the treatment method
    • 通过处理方法获得的TRIVALENT CHROMIUM,TRIVALAL CHROMIUM LIQUID的添加剂和成分的处理方法
    • JP2007239002A
    • 2007-09-20
    • JP2006061484
    • 2006-03-07
    • Kanagawa PrefectureKanagawaken Mekki Kogyo Kumiai神奈川県神奈川県メッキ工業組合
    • KURIHARA TOSHIROKAWAGUCHI AKIHIRO
    • C23C22/53C23F11/00
    • C23C2222/10
    • PROBLEM TO BE SOLVED: To extend the life of a chromadizing liquid by inhibiting an iron materia such as the inner surface of a pipel which has not been galvanized from dissolving into the chromadizing liquid, when a corrosion resistant film is formed with the use of the chromadizing liquid after a galvanization step, and consequently by decreasing an accumulation rate of dissolved impurities.
      SOLUTION: The chromadizing liquid to be used for chromadizing treatment includes an organic compound having a cyclic structure, and/or an organic compound having an unsaturated compound, a nitrogen compound, a hydroxyl group and a carboxyl group, previously dissolved therein as a corrosion inhibitor. The dissolved corrosion inhibitor shows an effect of being adsorbed onto a metal surface and inhibiting the iron material such as the inner surface of the pipe which is not plated from dissolving into the chromadizing liquid.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了通过抑制未被镀锌的管道的内表面的铁材料溶解到镀铬液中来延长镀铬液的寿命,当形成耐腐蚀膜时 在镀锌步骤后使用镀铬液,因此通过降低溶解的杂质的堆积速率。 解决方案:用于染色处理的铬化液包括具有环状结构的有机化合物和/或具有不饱和化合物,氮化合物,羟基和羧基的有机化合物,其预先溶解在其中 腐蚀抑制剂。 溶解的腐蚀抑制剂表现出吸附在金属表面上的作用,并且抑制未被电镀的管的内表面的铁材料溶解在镀铬液中。 版权所有(C)2007,JPO&INPIT