TRIVALENT CHROMATE SOLUTION CONTAINING SURFACTANT FOR PREVENTING STAINS AFTER CHROMATE TREATMENT, CHROMATED METAL, AND A MANUFACTURING METHOD OF THE CHROMATED METAL

摘要

PURPOSE: A trivalent chromate solution, chromated metal, and a manufacturing method of the chromated metal are provided to implement environmentally-friendly chromate treatment by reducing the content of trivalent chrome and to obtain chromated metal with high plating adhesion and corrosion resistance.;CONSTITUTION: A trivalent chromate solution comprises 1-5wt.% of trivalent chromium matter, 15-25wt.% of metal alkoxide, 5-7wt.% of fluoro compound, 3-5wt.% or silica compound, 0.1-0.3wt.% of surfactant, and the remaining amount of water. The trivalent chromate solution is concentrate that is diluted with water to a concentration of 4-5% when used for chromate treatment.;COPYRIGHT KIPO 2012