The reason why the plating around the plating parts is extremely thin

    The coating around the plated parts is not easy to deposit. The reason may be that the hangers are over-etched when the plating is deplated. The plating in the plating has serious hydrogen evolution, and the hydrogen over-potential is too low, thus affecting the normal deposition of the coating. To this end, take full account of this when removing the coating on the hanger. For example, when the hanger is not in a hurry, it can be removed with a weak acid deplating solution.

    Corrosion of the hanger will not only cause the above-mentioned quality problems, but also increase the brittleness due to hydrogen permeation, and it may be easily broken, or thereby increase the plating solution in the gap between the weld and the riveted portion, and thereby contaminate the liquid. Various types of solutions in the process, and due to loose structure, can not be used normally.

    Most of the above phenomena occur on nickel-plated hangers. The over-thick nickel layer on the nickel-plated hanger is removed with nitric acid, which tends to cause excessive corrosion of the hanger substrate.

    In fact, the excessively thick nickel layer on the nickel-plated hanger is not too strong in combination with the base of the hanger, and can be removed by tapping. After tapping with a hammer, it can be peeled off with a wire cutter.

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