Insulation process of plastic plating-partial plating parts

Insulation process of plastic plating-partial plating parts.
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Pre-insulation pretreatment of local electroplating parts.
After receiving the local electroplating drawings of the electroplated parts, we should first carefully analyze the drawings, be familiar with the insulation requirements and insulation parts, and accurately measure the location of the insulation, and finally use the needle to draw the range of insulation treatment to ensure that there is a clear dividing line between the non-insulated area and around the insulation, so as to achieve the clarity of the insulated area, so as to achieve the purpose of neatness and beauty of the electroplating parts.
Generally speaking, in order to improve the strength of the insulating film and avoid pre-treatment after coating the insulating film, the insulating film will be damaged. Therefore, a special pretreatment process should be carried out before insulation. In terms of quality, it is required to meet the requirements before electroplating. After pretreatment, the electroplated parts can be pre-plated or directly wipe off the free water on the surface with towels according to the actual needs, and then dry the adsorbed water on the surface with hot air blowing before different methods can be used for insulation. It should be noted here that some electroplated parts should be pre-plated before insulation treatment, such as pre-plating silver before silver plating, pre-plating copper before acid copper plating and chemical oxidation treatment before insulation treatment of aluminum anodized parts. this can effectively prevent a series of quality problems, such as the shedding of silver plating on the insulating edge of silver-plated parts, the matrix corrosion of insulating film on copper-plated parts and the shedding of aluminum anodized parts.