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发明授权
CN105803437B 三价铬化学转化膜处理液以及金属基材的处理方法 有权

三价铬化学转化膜处理液以及金属基材的处理方法
摘要：
本发明提供不含钴化合物、耐蚀性和耐伤性优异、处理液的稳定性高、同时顾及环境问题等的三价铬化学转化膜处理液以及使用该处理液的金属基材的处理方法。三价铬化学转化膜处理液，所述处理液是用于金属基材表面的化学转化膜处理液，含有如下组分且不含钴化合物：三价铬化合物；乳酸钛；除钴以外的一种或多于一种的过渡金属化合物；两种或多于两种的有机酸或有机酸盐；以及从氯离子、硝酸根离子和硫酸根离子中选择的至少一种离子。
摘要（英）：

Provided are a treatment liquid for a trivalent chromium conversion coating, achieving excellent corrosion resistance and scratch resistance without containing a cobalt compound, with high stability and adequate consideration for environmental issues; and a method for treating a metal substrate using the same. Provided is a treatment liquid for a trivalent chromium conversion coating on the surface of a metal substrate comprising: a trivalent chromium compound; titanium lactate; one or more compounds of one or more transition metals other than cobalt; two or more organic acids or organic acid salts; and at least one ion species selected from chloride ions, nitrate ions, and sulfate ions; but no cobalt compound.

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