YH-3300 Black phosphatingagent

YH-3300 Black phosphatingagent

Specification:

1. Scope of application

YH3300 is a medium temperature anticorrosive phosphating solution, which is developed for high temperature antirust phosphating, which has many disadvantages, such as fast change of sink fluid and the difficulty of controlling the thickness of phosphating film. It is used for black phosphating of cold rolled steel, cast steel and iron and steel parts. YH-3300 black phosphating chemical process is simple and easy to manage. It does not need to add accelerant alone. The phosphating film has high phosphating quality, compact, continuous, uniform and no ash thick black gray phosphating film. It has strong anti rust ability. After phosphating, it can be dried without soaking rust oil or rust proof wax.

Two. Selection of products

Three. Process flow

Degreasing - water washing - acid washing - water washing - neutralization - water washing - phosphating - water washing - antirust oil or antirust wax - stock

Acid washing River order:
60-70% hydrochloric acid solution should be used to soak 60min to activate the metal surface, and pickling is beneficial to obtain a good phosphate coating. The company has a YH-30 degreasing agent and a YH-80 untat passivating agent