To an increasing degree of success, vacuum heat treatment of high alloy steels and materials is being employed to an increasing degree of success. The heating is carried out under vacuum, and the charge is quenched with nitrogen at pressure of up to 6 bar absolute. Various technical features are provided by this vacuum treatment system which include:lakshmi vacuum heat treaters offers a vacuum heat treatment process for stress relieving, vacuum hardening, tempering, vacuum annealing, vacuum sintering, and vacuum pacity - 400 kg; size [in mm] - 500 x 500 x 800; vacuum level - 10-3 mbar; maximum temperature - 1350ºc; over pressure - 6 bar abs; and uniformity - ±5ºc.
