Keywords: heat treatment, treatment, process, characteristics, metal heat treatment, microgroup, chemical composition, properties, quality, workpiece,

　　Characteristics of heat treatment process: Metal heat treatment is one of the important processes in machinery manufacturing, compared with other machining processes, heat treatment generally does not change the shape of the workpiece and the overall chemical composition, but by changing the internal microstructure of the workpiece, or changing the chemical composition of the surface of the workpiece, to give or improve the use of the workpiece properties. It is characterised by an improvement in the intrinsic quality of the workpiece, which is generally not visible to the naked eye.

 　　In order to make the metal workpiece with the required mechanical properties, physical properties and chemical properties, in addition to the reasonable choice of materials and a variety of forming processes, heat treatment process is often essential. Steel is the most widely used materials in the mechanical industry, steel microstructure complex, can be controlled by heat treatment, so the heat treatment of steel is the main content of metal heat treatment. In addition, aluminium, copper, magnesium, titanium and its alloys can also be heat treatment to change its mechanical, physical and chemical properties, in order to obtain different performance.

More Characteristics of the heat treatment process: www.quenchtank.com/view-53.html