I'll tell you something about vacuum heat treatment

Type of vacuum heat treatment

Vacuum annealing: eliminate and reduce the heterogeneity of tissue, remove internal stress and improve its plasticity.

Vacuum tempering: eliminates internal stress during machining.

Vacuum quenching :(gas quenching, oil quenching) fast cooling after heating to harden the material,

Vacuum carburizing: carburizing is performed in vacuum heating and in a negative pressure carburizing atmosphere.

Vacuum ion carburizing: a new vacuum chemical treatment for hardening of metal surfaces.

Vacuum chemical heat treatment: vacuum carbonitriding, vacuum boronizing and other processes (being perfected).

Vacuum glow ion nitriding: generally ion nitriding under high voltage dc field.

Vacuum metallization: metallization in vacuum by high pressure.

TORCH specializes in the research and development of vacuum welding, vacuum sintering, vacuum eutectic, vacuum impregnation and other vacuum equipment and process technology. Those who are interested can search baidu (www.tourch.cc) for more information.gy.