vacuum heat treatment knowledge

Vacuum heat treatment is a new heat treatment technology combining vacuum technology and heat treatment technology. The vacuum environment of vacuum heat treatment refers to the atmosphere environment under one atmosphere pressure, including low vacuum, medium vacuum, high vacuum and ultra-high vacuum. In fact, vacuum heat treatment also belongs to atmosphere controlled heat treatment. Vacuum heat treatment refers to all and part of the heat treatment process in the vacuum state. Vacuum heat treatment can realize almost all the heat treatment processes involved in conventional heat treatment, but the quality of heat treatment is greatly improved. Compared with conventional heat treatment, vacuum heat treatment can achieve no oxidation, no decarburization, no carburization, can remove the surface of the workpiece phosphorus debris, and degrease degidation, so as to achieve the surface of bright purification effect.

Heat treatment of metal is one of the important parts in mechanical manufacturing

Metal heat treatment is one of the important processes in mechanical manufacturing. Compared with other processing technologies, heat treatment generally does not change the shape and overall chemical composition of the workpiece, but by changing the internal microstructure of the workpiece, or changing the chemical composition on the surface of the workpiece, endowing or improving the performance 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 make the metal workpiece have the mechanical properties, physical properties and chemical properties required, in addition to reasonable selection of materials and various forming processes, heat treatment technology is often essential. Iron and steel is the most widely used material in the mechanical industry. The microstructure of iron and steel is complex and can be controlled by heat treatment, so the 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.