Mold vacuum heat treatment technology

Vacuum heat treatment technology is developed in recent years, a new type of heat treatment technology, it has the characteristics of it is desperately needed in the mould manufacturing, such as preventing oxidation and decarburization, vacuum degassing and degassing, eliminate hydrogen embrittlement, so as to improve the plasticity, toughness and fatigue strength of materials. The vacuum heating is slow and the temperature difference between the parts inside and outside is small, which determines the small deformation of parts caused by vacuum heat treatment process.

The main applications of mold vacuum heat treatment are vacuum oil quenching, vacuum air quenching and vacuum tempering. In order to maintain the fine characteristics of vacuum heating of the workpiece (such as mold), the selection and formulation of coolant and cooling process are very important, and the process of mould quenching is mainly used in oil and air cooling.

Machining of mould for after heat treatment is no longer working face, as far as possible by vacuum tempering after quenching, vacuum quenching workpiece (mould), in particular, it can improve the surface quality of the related mechanical properties. Such as fatigue performance, surface brightness, corrosion, etc.