What is the fundamental difference between chrome plating and zinc plating

2015-07-13 800
1. Difference in surface color:
The surface of galvanized galvanized parts is a little blue and white, but it is not very bright. After passivation treatment, it can be made into blue white zinc, colorful zinc, black zinc, military green and other colors
The chrome plated surface is bright white and blue, and other chrome plated colors are black chrome.
2. Effect difference between chromium plating and zinc plating:
Zinc plating is only a layer of zinc metal of several microns to more than ten microns on the surface of galvanized parts. It is an anodic coating against iron base, with certain electrochemical protection. Galvanized parts have good rust resistance.
Chromium plating can be divided into decorative chromium plating and hard chromium plating. Chromium plating is a single chromium metal layer of several microns or more on the surface of the plated parts, which has excellent abrasion resistance. Decorative chromium should first be plated with copper or nickel, and then a very thin chromium layer. It has the effect of elegance and protection. It is important to process and use the products with high decorative requirements.
3. Cost difference between chromium plating and zinc plating
The cost of zinc plating is low, while the cost of chromium plating is high. In terms of the materials used in the electroplating process, the labor used in the electroplating process and the maintenance of the electroplating process, the cost of chromium plating is higher than that of zinc plating.

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