Vacuum Heat Treatment

Vacuum heat treatment prevents distortion of the material and provides an oxidation free surface. HHV’s cold - walled horizontal vacuum heat treatment furnace has oil and gas quenching capability.
The furnace has a horizontally mounted double walled water cooled chamber fabricated with carbon steel in accordance with ASME code. It has a diameter of 1100 mm, wall thickness of 12mm and a cylindrical length of 1000mm housing the hot zone of size of 730mm (D) x 750mm Depth. A fork lift facility has been provided for loading and unloading of charge of up to 200 kg in weight.
The furnace provides a uniform operating temperature of up to 1250 deg.C in the hot zone utilizing resistance heating by molybdenum band type heating elements. A vacuum system comprising a high speed diffusion pump in combination with roots and rotary pumps enables achieving a vacuum of 1x10-5 m.bar.