Electroplating is a process of plating a thin layer of other metals or alloys on the surface of some metals by using the principle of electrolysis, and it is a process of attaching a metal film on the surface of metals or other materials by using electrolysis to prevent metal oxidation (such as corrosion) and improve wear resistance, conductivity, reflectivity and corrosion resistance (such as copper sulfate). ) and enhance aesthetics. Many coins are also electroplated.

Chinese name

electroplate

Foreign name

electroplating

attribute

Specialized skills

principle

Principle of electrolysis

function

Improve wear resistance and corrosion resistance, etc.

quick

navigate by water/air

Related functional materials, requirements, working principle, typical process, electroplating method, coating classification, relevant appendices of electroplating power supply, classification of galvanizing solution, leakage, and local electroplating development stage regulations.

Basic meaning

In the electroplating process, the plated metal or other insoluble materials are used as the anode, the plated workpiece is used as the cathode, and the cations of the plated metal are reduced on the surface of the plated workpiece to form a coating. In order to eliminate the interference of other cations and make the coating uniform and firm, it is necessary to use a solution containing metal cations in the coating as electroplating solution to keep the concentration of metal cations in the coating unchanged. The purpose of electroplating is to coat a metal coating on the substrate and change the surface properties or dimensions of the substrate. Electroplating can enhance the corrosion resistance of metals (corrosion-resistant metals are mostly used for electroplating), increase hardness, prevent wear, and improve conductivity, smoothness, heat resistance and beautiful surface.

correlation effect

Metal coating is deposited on mechanical products with good adhesion but different properties from matrix materials by using electrolytic cell principle. Electroplated coating is more uniform than hot dip coating, generally thinner, ranging from several microns to dozens of microns. Through electroplating, we can obtain decorative protection and functional surface layer on mechanical products, and also repair worn and machined workpieces.