vacuum heat treatment technology advantages

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​Vacuum heat treatment is a metal heat treatment process in which the metal workpiece is heated below 1 atmosphere (that is, under negative pressure).

The anaerobic heat treatment of vacuum heat treatment can avoid the oxidation and decarburization of the workpiece, greatly improve its hardness and reduce its brittleness, at the same time, there is degreasing and degassing.

These characteristics of vacuum heat treatment can greatly improve the cleanliness of the workpiece surface. The mold becomes relatively brighter, reducing the deformation of the workpiece and the hardness of the workpiece after vacuum heat treatment is 3-5 times that of ordinary heat treatment.

For some high-value precision workpiece, such as large precision mold is particularly important, the vacuum heat treatment has greatly improved its service life, the final result was the enterprise used 10 precision molds a year, now only need to use 2-3 precision molds. Enterprises have greatly reduced production costs and improved economic benefits.

Vacuum heat treatment can be used for annealing, degassing, solution heat treatment, quenching, tempering and precipitation hardening processes. It can also be used for chemical heat treatment after proper medium is introduced.

The successful development and application of computer simulation technology (including organization simulation and performance prediction technology) in the heat treatment process make the intelligent heat treatment of die possible. As a result of the mold production of small batch (or even a single piece), the characteristics of many varieties, as well as high requirements for heat treatment performance and the characteristics of not allowing waste products, and make mold intelligent heat treatment become a must.

The intelligent heat treatment of the mold includes: clarifying the structure, material and heat treatment performance requirements of the mold; Computer simulation of temperature field and stress field distribution in die heating process; Computer simulation of temperature field, phase transition process and stress field distribution in mold cooling process; Simulation of heating and cooling process; Quenching process formulation; Automatic control technology of heat treatment equipment. Foreign industrial developed countries, such as the United States, Japan and so on, have carried out the research and development of vacuum high-pressure gas quenching technology, mainly for the target is mold.

Learn More : Vacuum Heat Treatment Furnace