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The black chemical conversion coating, the black chemical conversion coating processing liquid, being the black chemical conversion coating which is formed on the component which possesses the rare earth element content solution which is used for black chemical conversion coating formation method and
The black chemical conversion coating, the black chemical conversion coating processing liquid, being the black chemical conversion coating which is formed on the component which possesses the rare earth element content solution which is used for black chemical conversion coating formation method and
PROBLEM TO BE SOLVED: To provide a black chemical conversion coating that is capable of improving blackness without deteriorating corrosion resistance, a black chemical conversion coating treatment liquid, a method for forming the black chemical conversion coating, a solution containing rare earth elements used in the method for forming the chemical conversion coating, and a member equipped with the black chemical conversion coating.SOLUTION: The black chemical conversion coating is formed on a member having a metal surface. The black chemical conversion coating contains trivalent chromium and 0.0010 g/mrare earth elements, has a thickness of 100-1,500 nm and is free of hexavalent chromium.
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机译：解决的问题：提供一种黑色化学转化膜，该黑色化学转化膜能够在不降低耐腐蚀性的情况下改善黑色度，一种黑色化学转化膜处理液，该黑色化学转化膜的形成方法，用于该化学反应的包含稀土元素的溶液形成化学转化涂层的方法，以及配备有黑色化学转化涂层的部件。解决方案：黑色化学转化涂层形成在具有金属表面的部件上。黑色化学转化涂层包含三价铬和0.0010 g /稀土元素，厚度为100-1,500 nm，不含六价铬。
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