Analysis of plastic plating process

Plastic plating is an electroplating process that has been developed with the widespread use of plastics. It not only saves a lot of metal materials, reduces complicated processing steps, reduces the weight of equipment, but also effectively improves the appearance, electrical and thermal properties of plastic parts, and improves the mechanical strength of the surface. Therefore, it has been widely used in household appliances, daily necessities, electronics industry and national defense research.

Wrinkles, seams, and bubbling on the plastic surface	Injection mold is not smooth; improper injection molding conditions; plastic moisture
Poor hydrophilicity after roughening	The surface of the plastic is contaminated by the release agent and mineral oil; the roughening is insufficient, such as low temperature and short time; the workpiece is not turned when roughened; the plastic grade is wrong, too much material is returned.
After roughening, the plastic surface has a yellow loose layer	Excessive coarsening, such as high temperature and long time; excessive concentration of sulfuric acid in roughening, excessive corrosion during deplating or multiple deplating
Partial plating or deposition is slow during electroless plating	The roughening solution is not thoroughly cleaned; the degumming solution is too dilute or the temperature is low; the main salt and reducing agent content in the electroless plating is low or the stabilizer content is high
No fixed part of a fixed part	There is stress in this part; insufficient roughening or no turning; this part should not be thoroughly cleaned when cleaning
Insulating foaming or knotting force difference	Insufficient roughening or roughening after cleaning; plastic itself has stress or too much material, the grade is wrong; the surface of the workpiece is not cleaned; the parts are not turned enough, the convex part is over-cleaned; there is gas attached to the surface of the workpiece
Rough surface or fine sand	The mold finish is not enough; the roughening is excessive; the suspended liquid in the electroless plating solution is excessive;
Product deformation	Operating temperature is too high; plastic is too thin; hanger contact is too elastic; drying temperature is too high
After electroless plating, there is powder on the surface.	Electroless plating reaction is too fast; insufficient complexing agent and stabilizer

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