Plastic plating-coating insulation method.
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1Wax preparation was used. The characteristic of using wax for insulation treatment is that the bonding performance of the insulating layer and the matrix of local electroplated parts is more outstanding, and the end edge will not warp up in the process of operation, which is especially suitable for the plated parts with high dimensional tolerance of insulation end edge. In addition, the wax preparation can also be recovered and reused. The wax insulation method has higher requirements for the operation process. When the plating parts are coated with wax preparation, the plating parts should first be deoiled with organic solvents, and then the plating parts should be preheated in an oven at 60-70 ℃. The general time is determined according to the size of the plating parts, and the preheat treatment is completed to apply the first layer of wax. At this time, the temperature of the wax bath is 200-220 ℃, the first layer of wax should be thin and uniform, and the color is transparent when it is just applied. Then smear 2-3 times according to the thickness. After cooling, modify to the requirements of the plated parts. After being coated, the cotton ball is dipped in gasoline to scrub the plating surface carefully and repeatedly to ensure that the wax does not remain. When the electroplating is completed, the boiling water hot wax melting agent is used for recovery, and finally the water-soluble cleaning agent is used to wash the parts.
two.. Use paint or other paint. The operation of this kind of insulation method is very simple, and it is suitable for the insulation of all kinds of complex electroplating parts. When you receive the limitations of the use conditions or working conditions, you can coat all the plated parts, and then protect the parts that have been plated or want to be plated, and then remove the plating. In this way, the high temperature and harsh environment can be converted into milder environmental conditions. However, this method requires very high precision, and this method can not be used for local electroplating parts that do not come into contact with acid, alkali and other chemical reagents.
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