Engaged in lathe, machine processing industry for ten years, have a good understanding of metal surface treatment, today with you to learn about electroplating knowledge.
In industrial design, we often use electroplating technology. First, let’s understand what electroplating is.
Electroplating is the process of plating a thin layer of other metals or alloys on some metal surfaces by electrolysis principle. It is a process of using electrolysis to attach a metal film to the surface of metals or other materials so as to prevent metal oxidation (such as rust), improve wear resistance, conductivity and reflectivity. Corrosion resistance (copper sulfate, etc.) and aesthetic enhancement.
Electroplating is divided into copper plating, gold plating, silver plating, chromium plating, nickel plating and zinc plating and other specific processes, especially in the field of industrial design, zinc plating, nickel plating and chromium plating are the most widely used. And there must be some difference between them, right?
01- zinc plating
A kind of
Definition: Zinc plating refers to the surface treatment technology of plating a layer of zinc on the surface of metals, alloys or other materials to make them beautiful and rust-proof.
Features: Low cost, general anti-corrosion, silver-white color.
Application: 3C product requirements, etc.
Nickel plating on 02-
A kind of
Definition: Nickel plating is a method of electrolytic or chemical plating of nickel on metals or some non-metals.
Features: Beautiful, can do decoration, high price, slightly complex process, the color is silver and yellow.
Applications: Electronic products, copper parts, etc.
03- chrome plating
A kind of
Definition: Chromium is a slightly blue silver-white metal, electrolytically or chemically coated with a layer of chromium on metals or certain non-metals, known as chromium plating.
Features: There are two kinds of chromium plating, the first is to play a decorative role, bright appearance, good wear resistance, rust resistance is not as good as galvanizing, better than oxidation; the second is to increase the hardness and wear resistance of metal parts, which is the function of parts.
Application: Bright decorative parts and decorative joints on household appliances, electronics and other products.
Expand knowledge:
1-Electroplating production is mainly polluted by heavy metals in sewage and sewage. The state has strictly controlled the expansion of the electroplating industry and reduced it year by year.
2-The Main electroplating processes in China are zinc, copper, nickel and chromium plating, of which zinc plating accounts for 50%, copper, chromium and nickel plating accounts for 30%.
3-Galvanizing or cadmium plating can be used if the purpose is to prevent rust; nickel or chromium plating is the best choice if the focus is to prevent wear and tear.
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