Vacuum ion plating, also known as vacuum coating

Vacuum ion plating, also known as vacuum coating. Vacuum plating is now a more popular practice, the product made of strong metal, high brightness. Compared with other coating methods, the cost is lower, the pollution to the environment is small, and it is widely used in various industries.

Vacuum plating has a wide range of applications, such as ABS material, ABS+PC material, and PC material. At the same time, due to its complicated process, high environment and equipment requirements, the unit price is more expensive than water plating. Now the process is briefly introduced: Surface cleaning -> destaticize -> spray primer -> baking primer -> vacuum coating -> spray topcoat -> baking topcoat -> packaging.

The general vacuum plating method is to spray a primer on theMulti-arc ion coating machine material and then do the plating. Since the material is a plastic part, air bubbles, organic gases are left in the injection molding, and the moisture in the air is taken in when placed. In addition, because the plastic surface is not flat enough, the surface of the directly electroplated workpiece is not smooth, the gloss is low, the metal feel is poor, and bubbles, blisters and other undesirable conditions may occur. After spraying a primer, a smooth and flat surface is formed, and the generation of bubble blisters in the plastic itself is eliminated, so that the effect of electroplating can be exhibited.

Vacuum plating can be divided into general vacuum plating, UV vacuum plating, vacuum plating special. The process has evaporation, sputtering, gun color and so on.

Water electroplating is simple because of the process, from the equipmentChrome metallization coating machine to the environment, there is no demand for vacuum ion plating, so it is widely used. However, water plating has a weakness, only ABS material and ABS + PC material can be plated (the effect of this material plating is not It is ideal.) The temperature of ABS material is only 80 °C, which limits its application range. Vacuum plating can reach about 200 °C, which can be electroplated for parts used at high temperatures. The air nozzle ring uses PC material, and these components are required to withstand a high temperature of 130 ° C. In addition, generally require high temperature resistant parts, vacuum plating should be sprayed with a layer of UV oil, so that the surface of the product is shiny and resistant to high temperatures. At the same time, it also guarantees adhesion.

The advantages and disadvantages of the two processes:

A. Simply put, vacuum plating is not just UV oil, its adhesion is very poor, it can't pass the TEST, and the water plating is obviously better than vacuum plating! Therefore, in order to ensure the adhesion of vacuum plating, special spraying treatment is required, and the cost is of course higher.

B, water plating color is more monotonous, generally only a few kinds of bright silver and silver, such as flash silver, magic blue, cracks, water drops and other seven colors of color can not help. And vacuum plating can solve the problem of seven colors.

C. Water plating The general plating material is “hexavalent chromium”, which is a non-environmental material. For “hexavalent chromium”, the following requirements are required:

EU: 76/769/EEC: Prohibited; 94/62/EC: <100ppm;

ROHS: <1000ppm

Such strict requirements, some domestic manufacturers have begun to try to use "trivalent chromium" instead of "hexavalent chromium"; and vacuum plating uses a wide range of coating materials, easy to meet environmental requirements.

To be simple, it is a surface treatment technique that deposits a film material that needs to be coated on the surface of a product by plasma ionization and deposits it on the surface of the workpiece under vacuum.

It has vacuum evaporation, sputtering, ion plating, etc. There are many ways to obtain these deposition methods: electric heating, ion beam, electron beam, DC sputtering, magnetron sputtering, medium frequency sputtering, RF construction, pulse Sputtering, microwave enhanced plasma, multiple arcs, etc., many methods,