Electroplating is the process of plating a thin layer of other metals or alloys on the surface of certain metals using the principle of electrolysis. It is a process of using electrolysis to attach a layer of metal film to the surface of metal or other material parts to prevent metal oxidation ( Such as rust), improve wear resistance, electrical conductivity, reflective properties, corrosion resistance (copper sulfate, etc.) and enhance the appearance.
Electroplating is further divided into specific processes such as copper plating, gold plating, silver plating, chrome plating, nickel plating and galvanizing. In the field of manufacturing, especially galvanizing, nickel plating and chrome plating are the most widely used. Here’s a quick rundown of the differences between the three:

        1: Chromium plating is mainly to improve surface hardness, appearance and rust prevention. Chromium plating has good chemical stability, and it does not act in alkali, sulfide, nitric acid and most organic acids, but it can dissolve in hydrohalic acid (such as hydrochloric acid) and hot sulfuric acid. Because chrome does not change color, it can maintain its reflective ability for a long time when used, which is better than silver and nickel. The process is generally electroplating.

        2: Nickel plating is mainly wear-resistant, anti-corrosion, anti-rust, generally thinner, and the process is divided into two types: electroplating and chemical.

       3: Galvanized is mainly beautiful and anti-rust. Zn is an active metal that can react with acid, so it has poor corrosion resistance and is the cheapest of the three.

       The difference in cost is that chrome plating is the most expensive, followed by nickel, and zinc is the cheapest. Among them, rack plating, barrel plating, etc. must be distinguished. Rack plating is expensive, barrel plating is cheap.