The working principle is to form a low-pressure environment with almost no air by extracting a vacuum, and then using water to boil at low pressure (below atmospheric pressure) to produce steam, and the principle of heat output by condensation and heat exchange of soda works.
It is mainly used for vacuum heat treatment of cold and hot work mold steel, high speed steel, elastic alloy, high temperature alloy, stainless steel, titanium alloy, magnetic materials and other materials.
