The working principle of the vacuum quenching furnace

The working principle of the vacuum quenching furnace

The vacuum quenching have liquid quenching and quenching. Gas quenching line artifacts to cooling after vacuum heating chamber filled with high purity gases (such as nitrogen for cooling. Practical in gas quenching with high speed steel and high carbon high chromium steel martensite critical cooling rate is low.
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, rapid cooling. If demand high quality of appearance, workpiece vacuum quenching and tempering after solid solution heat to solve and accumulation to soften should still take place in a vacuum furnace.