The working principle of vacuum gas quenching furnace treatment

The working principle of vacuum gas quenching furnace treatment

The vacuum quenching have liquid quenching and quenching. Gas quenching after vacuum heating the workpiece to the cooling chamber filled with high purity gas such as nitrogen for cooling. Suitable for gas quenching with high speed steel and high carbon high chromium steel martensite critical cooling rate lower material. Liquid quenching is the workpiece heated in the heating chamber, moved to the cooling chamber filled with high purity nitrogen and immediately into the quenching tank, fast cooling. If need high surface quality of workpiece vacuum quenching and tempering after solution heat treatment and precipitation hardening should still take place in a vacuum furnace.