Electrolytic phosphating process for pretreatment of painting

摘要

The present process of phophating is non-electrolytic and it is generally used for pretreatment of painting. But it has some problems, for example, making sludge and so on. Against that, we developed new phosphating process "Electrolytic phosphating process". It makes the film by applying DC voltage. At the result, it becomes possible to reduce the sludge and make the corrosion resistance better.