company news about the specific process parameters for phosphating treatment:

Phosphating treatment is a metal surface processing technique primarily used to enhance corrosion resistance and adhesion. Here are some specific process parameters for phosphating treatment:

1. Phosphating Solution Formulation
Main Components: Typically includes zinc, iron, or manganese phosphates.
pH Value: Generally controlled between 4.0 and 5.5 to ensure optimal phosphating results.
2. Temperature
Processing Temperature: Usually between 50°C and 70°C. Higher temperatures can accelerate the reaction, but excessive heat may affect coating quality.
3. Time
Processing Time: Generally ranges from 2 to 10 minutes, depending on the material and surface condition of the workpiece.
4. Concentration
Phosphate Concentration: Typically between 1% and 5%, with specific concentration depending on the type of phosphating solution used and the desired coating thickness.
5. Cleaning
Pre-treatment Cleaning: Cleaning and degreasing must be performed before phosphating to ensure the metal surface is clean.
Post-treatment Cleaning: Rinse with clean water after phosphating to remove any residual phosphating solution.
6. Drying
Drying Temperature: The workpiece after phosphating should be dried at temperatures between 60°C and 80°C to ensure the stability of the coating.
7. Coating Thickness
Coating Thickness: Typically required to be between 5 and 20 microns, depending on subsequent coating requirements and usage conditions.
8. Quality Inspection
Adhesion Testing: Adhesion can be tested using tape peel tests and other methods.
Corrosion Resistance Testing: Salt spray tests may be conducted to check the corrosion resistance of the coating.