Nickel plating is one of the common electroplating processes in badge production. Generally, silver badges are mostly nickel-plated, but less silver-plated. Because the effect of nickel plating is very close to the effect of silver plating, the industry generally calls nickel plating silver plating. The appearance of the nickel-plated badge is very similar to the appearance of the silver-plated badge, both are bright silver. However, the characteristics of nickel are relatively stable, the color can be more stable after electroplating, and the property of silver is more lively than nickel, and it is easy to oxidize and become gray and black. This is also the case that many silver dollars circulated in the folk will have a gray-gray appearance, not silver-white . There are many nickel-plated materials for badges, and copper, zinc alloy, iron, etc. can all be nickel-plated to make metal badges with various surface effects.
Let’s take a look at the characteristics and performance of nickel electroplating.
1. The stability of the electroplated nickel layer in the air is very high. Due to the strong passivation ability of nickel metal, a very thin passivation film can be quickly formed on the surface, which can resist the corrosion of the atmosphere, alkali and certain acids .
- Nickel electroplating crystals are extremely fine and have excellent polishing performance. The polished nickel coating can give a mirror-like gloss appearance, while maintaining its gloss in the atmosphere for a long time.
- The hardness of the nickel plating layer is relatively high, which can improve the wear resistance of the surface of the product. The plating medium layer is commonly used in the printing industry to increase the hardness of the lead surface. Due to the high chemical stability of nickel metal, some chemical equipment also uses a thicker coating to prevent corrosion by the medium.
- Nickel plating has a wide range of applications and can be used as a protective decorative coating. On the surface of steel, zinc die castings, aluminum alloys and copper alloys, it protects the base material from corrosion or bright decoration; it is also often used as other coatings. The middle plating layer is plated with a thin layer of chromium or a layer of imitation gold, which has better corrosion resistance and more beautiful appearance.
- In electroplating, nickel electroplating has many excellent properties, its processing volume is second only to electroplating zinc, and its consumption accounts for about 10% of the total nickel output. In the production of badges, it is also one of the most used in various electroplating processes.
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