为了防止用钢铁材料制成的零部件或工模具锈蚀,人们通常采用不同的方法进行防锈处理.例如:喷漆或刷漆,涂油、镀铬、镀镍、镀锌和氧化——发黑处理等.工厂中多数采用发黑处理,即所谓的金属防锈氧化法. 一、工件发黑处理后的色泽在大量的生产实践中,可以发现处理后 To prevent corrosion of parts or tooling made of steel, rust-proofing is usually done in different ways such as painting or painting, oiling, chrome plating, nickel plating, galvanizing and oxidation - blackening Etc. Most factories use blackening treatment, the so-called metal rust oxidation method .After the workpiece blackening color in a large number of production practices, can be found after treatment