CHG International Limited
Your Trusted Partner in the Metal Surface Treatment Industry
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Pretreatment Spray System For Powder Coating Machinery Degreasing Phosphatization Rinsing Drying
Spray pretreatment plays a vital role in the coating process, involving detailed surface preparation of workpieces before powder coating. This step ensures that surfaces are meticulously cleaned and readied for coating, enhancing both adhesion and the durability of the final finish.
1. Surface Treatment Before Powder Coating: The spray cleaner is utilized for surface treatment of workpieces prior to powder coating.
2. Effective Cleaning and Phosphatization: The spray cleaner not only cleans but also facilitates the formation of a tightly bonded and uniform phosphatization layer on the surface. This preparation is critical for achieving strong adhesion between the shell surface and the coating, ensuring the coated surface is clean and resistant to corrosion prior to powder coating.
3. Advanced Equipment Design: Our equipment, leveraging advanced technology, is tailored to meet the specific requirements and actual conditions of each user.
4. Comprehensive Section Components: Each section comprises a spray booth shell and spray system, along with a reservoir. Depending on the user's needs, an additional heating device may also be included.
| Degreasing | In this step, a cleaning solution is sprayed onto the surface of the workpiece to remove any grease, oil, or contaminants that may be present. Degreasing is essential to ensure proper coating adhesion. |
| Phosphating | Phosphating is a chemical pretreatment process where a phosphate solution is sprayed onto the workpiece's surface. It creates a thin, adherent phosphate coating that improves the coating's adhesion and corrosion resistance. |
| Rinsing | After each pretreatment stage, the workpiece is typically rinsed with water to remove any remaining cleaning or pretreatment chemicals. |
| Surface Conditioning | Some pretreatment systems may include a surface conditioning step, where the workpiece is exposed to abrasive media to create a roughened surface. This helps improve coating adhesion, especially for certain materials. |
| Drying | Before the actual coating process, the workpiece is often dried to ensure a clean and moisture-free surface, which is vital for a successful coating application. |
