The color of electroplated nickel mainly depends on the thickness of the electroplated layer and the material structure.
Author: Marisa
I. Common colors of electroplated nickel
The color of electroplated nickel mainly depends on the thickness of the electroplated layer and the material structure. Common colors include:
1. White
When the thickness of the electroplated layer is less than 5um, the plated part appears white. This type of electroplated nickel is generally used for decorative parts and light-loaded parts that need to protect the surface.
2. Gray
When the thickness of the electroplated layer is more than 5um, the plated part appears gray. This type of electroplated nickel is widely used and can be used for various metal products with high corrosion resistance and decorative requirements.
3. Gold
The color of gold electroplated nickel depends on the sulfur content of the electroplated nickel and the amount of precipitated tin. Gold electroplated nickel is commonly found in high-end products such as electrical appliances, furniture and tableware.
4. Black
During the electroplating process, some special additives are added, and the electroplated coating will appear dark gray to black, which is generally used for high-end products such as automobiles, locomotives and mechanical parts.
II. Application scenarios and precautions of nickel plating of different colors
1. White nickel plating:
White nickel plating is often used for light-load parts that need to protect the surface and have high decorative requirements, such as eyeglass frames. During use, it is necessary to avoid the presence of chemical liquids such as electrolyzed water to avoid electrolytic corrosion.
2. Gray nickel plating:
Gray nickel plating is the most widely used electroplating layer. It can be used for various metal products with high corrosion resistance and decorative requirements. It has a very wide range of uses, such as automotive parts, measuring instruments and other products.
3. Gold nickel plating:
Gold nickel plating is used in high-end products such as electrical appliances, furniture and tableware. It has a good decorative effect and can also improve the corrosion resistance of the product. During use, it is necessary to avoid contact with chemicals or foods containing oxidizing and acidic components.
4. Black nickel plating:
Black nickel plating is often used in high-end products such as automobiles, locomotives and mechanical parts. It has strong corrosion resistance and good toughness. During use, it is necessary to avoid contact with substances such as strong alkali, acid, and gaseous liquids.
In short, electroplated nickel comes in a variety of colors. Different colors of electroplated nickel have different application scenarios and usage precautions, and need to be selected according to specific circumstances.