Operation method of plastic plating-Nano vacuum plating process.
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The practice of vacuum plating.
The general practice of vacuum plating is to spray a layer of primer on the material before electroplating. Because the material is plastic, air bubbles and organic gases will be left during injection molding, and moisture will be inhaled from the air during placement. In addition, due to the plastic surface is not smooth, direct plating workpiece surface is not smooth, low gloss, metal sensitivity is poor, and there will be bubbles, blisters and other bad conditions. After spraying a layer of primer, a smooth surface will be formed, and the bubble bubbles existing in the plastic itself will be eliminated, so that the effect of electroplating can be displayed.
Vacuum electroplating process.
Vacuum evaporation method is a method to heat metal in high vacuum, make it melt and evaporate, and form metal film on the surface of plastic after cooling. The commonly used metals are low melting point metals such as aluminum.
The method of heating metal: some use the heat generated by resistance, but also use electron beam.
When evaporating plastic products, in order to ensure that the heat emitted by the metal during cooling does not deform the resin, the evaporation time must be adjusted. In addition, metals or alloys with too high melting point and boiling point are not suitable for evaporation.
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