Robotized Spray Sliding Conveyor Line for Interior and Exterior Trim Parts

1. Solidify impurities within the furnace. The solution is to thoroughly clean the interior cavity of the curing oven using a damp cloth and a vacuum cleaner—paying special attention to the gaps around the suspension chain and ventilation ducts. If you notice large, grayish-black particulate impurities, you should check whether the exhaust duct filter screen has any tears or damage, and replace it immediately if necessary. 2. Impurities in the powder coating room. The main issues are dust, chemical fibers from clothing, abrasive particles from machinery and equipment, and scaling in the powder coating system. To address this, perform an air-compressed blow-down of the powder coating system before starting work each day, and thoroughly clean the powder coating equipment and booth using a damp cloth and a vacuum cleaner. 
3. Caused by the product workpiece: The coating is too thick—adjust the coating thickness; the workpiece contains excessive moisture—address this by properly preparing the surface beforehand; the working voltage is too high—reduce the working voltage; the spray gun is positioned too close—maintain an appropriate distance; the powder has absorbed moisture—replace it with dry, fresh powder. 
Spray coating production line issues include powder impurities—primarily caused by excessive powder preservatives, uneven dispersion of color pastes, and powder spots resulting from compression during molding. The solution is to enhance powder quality and improve powder storage and transportation methods. 
4. Pre-treat impurities. The main issues are large particulate impurities caused by phosphating sludge, as well as fine-scale impurities resulting from yellow rust on the phosphating film. To address these problems, promptly remove any accumulated sludge from the phosphating tank and spray lines, and carefully control both the concentration and flow rate of the phosphating bath solution. This approach should work effectively.

5. Powder architectural coatings are of poor quality , excessive filler application—using high-quality powder architectural coatings containing waterborne impurities. These impurities are primarily caused by excessive sand and salt content in the water used during pre-treatment. The solution is to upgrade the filtration system and use purified water as the final rinse medium. During the painting process, spray booth equipment often encounters numerous challenges; among them, the presence of raised particles on the surface of the powder coating—commonly referred to as "granules"—presents a persistent issue for both powder coating manufacturers and producers. These granules can significantly compromise the aesthetic quality of the surface finish, ultimately affecting the overall quality grade of the coated product.