Electroplating color of plastic water plating-gun color.
Gun color is an iron black shining cold hue, named because it is similar to the light color on the surface of a steel gun. This elegant tone has occupied a place in the decorative coating, and has been gradually popularized and applied. The tone of gun color is obtained by electroplating tin-nickel alloy, tin-cobalt alloy or nickel. This hue is called rifle color in Japan, gun black in Europe and America, and gun color in China for short.
The novelty of gun color lies in that it can get different shades and lustre according to the needs due to the different content of gun color additives. In addition to the elegant tone, the gun color coating has hardness up to HV550~650, fine crystal without cracks, good wear resistance and corrosion resistance, and is not easy to change color in the atmosphere. The dispersion and covering performance of the gun color plating bath is also quite good, which is suitable for the electroplating of complex workpieces.
The key of electroplating gun color is gun color additive, which mainly introduces sulfur-containing amino acids, such as methionine, which makes the gun color coating blackness with different content in pyrophosphate tin-nickel gun color.
Gun colors are matched with other hues, such as gold, white or dark black. For example, the belt buckle uses the outer ring gun color and the middle gold collocation, the tone is elegant.
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