Shenzhen Tengfei plastic products Co., Ltd. for the broad masses of friends introduced! In general, vacuum plating should be taken protective measures, non-metallic or metal surface after the appearance of metal, how to take coloring, dyeing or other surface finishing treatment, to ensure that the appearance of the effect of fine decoration can be durable.

The most common method used in vacuum plating is surface coating, usually with a transparent coating to protect the surface of the finish. In this way, they can adhere to the appearance of refined color, but also improve the appearance of corrosion resistance and abrasion resistance. But some paint itself has a certain gloss, so this appearance protection is also called cover light treatment. Will affect its decorative or protective effect, the coating in the process of vacuum plating or change color when in use. Should be paid attention to in the process of electroplating disposal, properly disposed of.

The reason for the discoloration of the coating is that the coating is not corrosion resistant in the aggressive medium (including air), and oxidation or other chemical reactions occur on the surface. The anti tarnish treatment of coating can be noticed in the following aspects:

Strict implementation of process specifications, first, optimize the electroplating process. This will greatly reduce the tendency of the coating to change color. For example, to prevent the poor cleaning after plating, the current density is too high, bath temperature is high, are conducive to prevent the yellow layer of tin. If a layer is plated on the coating. 0.2-0.25m gold and two are plated on the coating. For example, copper alloy, especially gold imitation coating, is easy to change color. For gold a precious one metal, color is not easy in the air, can make the plating product does not change in a long time. This process is widely used in Japan, China, Hongkong and other places. Includes coating coatings and other thin layer organic maintenance films; three is coated on the coating. Discoloration prevention treatment of silver plating is a typical, such as the use of the electrophoresis coating method of protection, which is currently in the music industry in the commonly used method of silver coating with organic solvent and also maintenance layer, such as BY-2DJB-823TX Silver Tarnishing prevention agent, can make the appearance of silver plating to form a layer of solid film, the shielding effect on corrosion medium, prevent discoloration.

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