Vacuum electroplating electric heating tube aluminum alloy film

Vacuum electroplating electric heating tube aluminum alloy film

After passivation of the aluminum alloy film, especially for some parts that have been mechanically polished, generally speaking, since the surface state should be relatively uniform and the film formation is relatively uniform, the appearance of asking for directions is mainly related to the cleaning method after passivation, rinsing Water and parts draining treatment methods are related to three factors; to solve the problem of texture, we must start with the above three main factors and eliminate them one by one; the problem of cleaning method is that the aluminum alloy should be fully cleaned after passivation, and the best Multiple cleaning processes are adopted instead of a simple rinse. In order to reduce the residue of water on the surface of the workpiece, a hot water rinse is adopted at the end; and the problem of rinsing water is mainly to ensure the cleanness of the rinse water and prevent the residue of the rinse water. Passivation of the surface of parts; part draining treatment method refers to the passivation arrangement of parts, which is drained by rotary draining or drying with compressed air.

After the vacuum electroplating electric heating tube is washed, the workpiece shall be subject to the following punishments depending on the situation

a. After the plating is realized, it needs to be rinsed with a large number of rinses, or simply rinsed in a clean water tank. The speed should be fast and the rinse should be thorough.

b. After flushing, the workpiece shall be punished as follows according to the situation:

1. Put it into the closing tank for pore closing treatment, and take it out for forced air-drying after a period of time.

2. After drying, spray a layer of anti-rust outside the coating

3. If the workpiece is not returned to the factory immediately after the punishment is realized, it should be kept dry and sealed, and it should not be placed in a humid place, exposed to the sun and rain, so as to avoid affecting the life of the coating.

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