China Suppliers Factory Secondary Recycling Cabinet Coating Machines for Efficient Powder Recovery and Filtration
TOP coating machine Manufacturer in China About us
Our Customers
Why choose us
Order process
Send your requirements
First, please leave your contact information and we will contact you to understand your requirements. We will have professional technicians to communicate with you.
Plan the plan
The design team will carefully check your requirements and provide suggestions on how to improve your concept. We will plan the equipment plan for you and quote.
Wait for confirmation
After the plan and quotation are confirmed, we will design detailed drawings for you, check the details with you, and develop the final implementation plan.
Cooperation and delivery
Signing a contract ensures the quality of your cooperation project with us. All items are customized and arranged in cargo containers to ensure that they arrive safely and on time.
Assembly line process flow
Step 1: Pretreatment
This is the preparatory work before painting, the purpose is to remove impurities such as oil, dust, rust on the surface of the workpiece, and increase the adhesion between the coating and the surface of the workpiece.
Step 2: Drying moisture
After the pretreatment step is completed, some moisture and possible tiny particles will remain on the surface of the workpiece. The principle of drying moisture is mainly to evaporate the moisture on the surface of the workpiece by heating, ensuring that the surface of the workpiece is dry before entering the powder spraying link so that the powder coating can be evenly attached.
Step 3: Electrostatic powder spraying
Electrostatic spraying is the core link of the powder coating assembly line. In this process, the powder coating is fed into the spray gun, and the spray gun generates high-voltage static electricity through an electrostatic generator. When the powder coating passes through the spray gun, it will be charged. Because the workpiece is grounded, the charged powder coating is evenly adsorbed on the surface of the workpiece under the action of electrostatic attraction.
Step 4: Baking and curing
Baking and curing The sprayed workpiece then enters the baking and curing chamber. Under high temperature, the resin and curing agent in the powder coating react chemically to form a strong and durable coating. This process not only fixes the coating, but also gives it excellent corrosion resistance and weather resistance.
Step 5: Post processing Finally
Post-stage processing Finally, the workpiece goes through post-processing steps such as cooling, inspection and packaging to ensure that the coating quality meets the standards and is ready for shipment.
FAQ and answers by customers
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1. Why is the coating not shiny enough?
Reasons: The baking time is too long, the temperature is too high, other harmful gases are mixed in the baking, the workpiece surface is too rough, and the pre-treatment method is not selected properly.Solutions: Adjust the baking time and temperature, ensure the baking environment is clean, and select the appropriate pre-treatment method. -
2. Why does the coating change color?
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3. Why is the coating surface orange peel?
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4. Concave holes appear in the coating:
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5. Why do bubbles appear in the coating?
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6. Why is the coating uneven?
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7. Why is the impact strength and adhesion of the coating poor?
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8. Why does the coating produce pinholes?
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9. Why does a small amount of sand appear on the surface of the coating?
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10. Why does the coating fall off?
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11. Why is the powder supply uneven?
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12. Why is the powder flying and the adsorption poor?
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13. Why is the powder spraying amount small?
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14. Why is the powder spraying pipe blocked?
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