Metal heat treatment is a process in which a metal workpiece is heated to a suitable temperature in a certain medium, maintained at this temperature for a certain period of time, and then cooled at different rates to control its properties by changing the surface or internal structure of the metal material.
principle
Metal heat treatment is one of the important processes in mechanical manufacturing. Compared with other processing techniques, heat treatment generally does not change the shape and overall chemical composition of the workpiece. Instead, it imparts or improves the performance of the workpiece by changing the microstructure inside the workpiece or changing the chemical composition on the surface of the workpiece. Its characteristic is to improve the intrinsic quality of the workpiece, which is generally not visible to the naked eye.
In order to provide metal workpieces with the required mechanical, physical, and chemical properties, in addition to the rational selection of materials and various forming processes, heat treatment processes are often essential. Steel is the most widely used material in the mechanical industry, with a complex microstructure that can be controlled through heat treatment. Therefore, heat treatment of steel is the main content of metal heat treatment. In addition, aluminum, copper, magnesium, titanium and their alloys can also change their mechanical, physical and chemical properties through heat treatment to obtain different performance characteristics.
Heat treatment equipment is a device used for annealing, tempering, quenching, heating and other heat treatment processes on workpieces.
