解决前处理磷化发黄和发花的几点举措

Some Measures for Solving Phosphating Yellowing and Color Uneven of Fore Treatment

通过调整磷化液中氧化剂的含量 ,并监控总酸与游离酸的比值 ,解决磷化发黄。

By adjusting contents of oxidizer in phosphating solution and controlling rate of total acid and free acid to solve phosplating yellowing,color uneven and so on.