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Production manner of the component which has the chemical conversion coating which was formed by the constituent and its constituent for chemical conversion coating
Production manner of the component which has the chemical conversion coating which was formed by the constituent and its constituent for chemical conversion coating
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机译：具有由化学转化涂层的成分及其成分形成的具有化学转化涂层的部件的生产方式
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摘要
As it is superior corrosion-resistant and appearance, the water solubility trivalent chrome content material and the hydroxycarboxylic acid, and the ion above 0.05mol/L, being the water system acidic constituent which has with the water solubility hydroxycarboxylic acid type material which consists of above the 1 or 2 kinds which are chosen from the group which consists of the salt and the coordination compound with chrome conversion the chemical conversion coating where 6 value chrome elution tonnage is suppressed as a formation possible chemical conversion coating liquid, vis-a-vis all constituent, the chemical conversion coating liquid where the ratio for the chrome conversion molar concentration of the aforementioned water solubility trivalent chrome content material of hydroxycarboxylic acid conversion molar concentration of the aforementioned water solubility hydroxycarboxylic acid type material is under the 2.5 of 0.4 or moreIs offered.
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