What is vacuum heat treatment processing technology?

Vacuum heat treatment is a new heat treatment technology that combines vacuum technology and heat treatment technology. The vacuum environment in which vacuum heat treatment is located refers to an atmospheric environment under atmospheric pressure, including low vacuum, medium vacuum, high vacuum and ultra high vacuum. Vacuum heat treatment It actually belongs to the atmospheric heat treatment.

• What is vacuum heat treatment processing technology?

• What is the principle of vacuum heat treatment?

• What is the purpose of vacuum heat treatment?

What is vacuum heat treatmentprocessing technology?

It mainly refers to a new heat treatment technology combining vacuum technology and heat treatment technology. Among them, the vacuum environment in which vacuum heat treatment is located refers to an atmospheric environment under atmospheric pressure, including low vacuum, medium vacuum, high vacuum and ultra high vacuum, etc.

Therefore, vacuum heat treatment is actually part of atmospheric heat treatment. Vacuum heat treatment means that all or part of the heat treatment process is carried out in a vacuum state. Vacuum heat treatment can realize almost all heat treatment processes of conventional heat treatment, but the heat treatment quality is greatly improved. compared to conventional heat treatment.

Vacuum heat treatment technology can realize no oxidation, decarburization and carburization at the same time. It can remove phosphorus chips on the surface of the workpiece, and has the functions of degreasing and degassing to achieve the effect of a bright and clean surface.

What is the principle of vacuum heat treatment?

The process principle of vacuum heat treatment technology uses the phase conversion properties of metals in the vacuum state. In a vacuum that is only 0.1 MPa away from atmospheric pressure, the thermodynamics and kinetics of solid state phase conversion do not change. When formulating the process specification for vacuum heat treatment, it can be entirely based on the principle of solid-state phase transition under normal pressure.

The data of different tissue transformations under normal pressure can certainly be used. At the same time, the physical and mechanical properties of metallic materials can be improved under the influence of vacuum degassing. When heated in a vacuum state, elements on the surface of metal workpieces evaporate. The vacuum required to achieve non-oxidative heating of metals.

What is the purpose of vacuum heat treatment?

The applications of air-cooled vacuum high pressure quenching are quenching and tempering of materials, mixed crystals and aging of stainless steel and special alloys, ion carburizing and carbonitriding, as well as vacuum sintering, cooling and quenching after soldering. In mold heat treatment, the process parameters used also have a decisive influence on the performance of the mold: these include heating temperature, heating speed, holding time, cooling method, cooling speed, etc. Correct heat treatment process parameters can ensure the best performance of the mold, otherwise it will have bad or even serious consequences.

Beizhong Group maintains close relationships with customers in the vacuum heat treatment industry and is committed to strengthening production and operation, as well as improving quality and safety.