Important links of the pre -processing system: Common processing steps and functions in powder spray production lines

In the modern manufacturing industry, powder spraying has become a widely used surface coating technology, and the powder spray production line with the pre -processing system improves the painting effect and product quality through the front processing link. This article will introduce some of the common processing steps in the previous processing system and their role.

1. Surface cleaning

• Role: Remove the oil, dust and other impurities on the surface of the workpiece to ensure the surface cleanliness.

• Treatment steps: Use solvents, alkaline cleaning agents or ultrasonic cleaning equipment to ensure that the surface of the workpiece is clean and no impurities.

2. Pickled

• Function: Remove the oxidation layer, rust and other metal oxides on the surface of the workpiece to increase the surface roughness and enhance adhesion.

• Treatment steps: Soak the workpiece in an acidic solution, such as the pickled groove, so that the surface can be effectively corroded and cleaned.

3. Phosphorusization treatment

• Function: A phosphorurative layer is formed on the surface of the workpiece to enhance the adhesion with the coating and improve the anticorrosiveness.

• Treatment steps: By immersion workpiece, a uniform phosphorurative layer is formed in a solution containing phosphoric acid to improve the surface quality.

4. Washing

• Function: Thoroughly clear the chemical residues used during the processing process to prevent adverse effects on coating.

• Treatment steps: Using water flushing the workpiece to ensure that all treatment liquids are completely cleaned.

5. dry

• Function: Ensure that the surface of the workpiece is dry and provide ideal conditions for subsequent powder paint.

• Treatment steps: Through hot air or other drying equipment, the surface of the workpiece is evaporated to ensure that the surface is dry and uniform.

6. Powder painting

• Function: Put the powder on the surface of the workpiece that has been processed before, forming a uniform and strong adhesion coating.

• Treatment steps: Use an automatic spray system to spray the powder evenly on the surface of the workpiece to ensure that the thickness of the coating is uniform.

7. Baking and curing

• Function: By melting, flowing and solidifying the powder coating by high temperature, a solid protective layer is formed.

• Treatment steps: Send the coating workpiece into the baking oven for constant temperature baking to ensure that the coating is strong and durable.

Through these previous processing steps, the powder spray production line can ensure that the coating has strong adhesion, high surface quality, and improve the painting effect and product durability. The application of the front processing system in the process of powder spray provides a solid foundation for the efficient operation of the production line and the improvement of the coating quality.