关键词: 磷化, Taguchi方法

Abstract: The problems encountered in phosphating such as unstability of phosphating bath, too much sludge in phosphating and the poor microcosmic formation of phosphating films have been solved by improving the phosphating bath composition and phosphating procedures. As far as the non linear relationship between the coating weight and geometric area of coating in the phosphating of the steel is concerned, the Taguchi Method is used to optimize the phosphating process. The linear relationship between the coating weight and geometric area of coating is finally obtained. The operational property of the present phosphating bath is also dramatically improved by the adoption of new phosphating composition.