NVPT series vacuum tempering furnace is a high-end industrial equipment specially designed for tempering, annealing and other heat treatment of metal materials. The equipment has a precision controlled and uniform cooling technology of heating and low pressure cooling under the protection of vacuum or inert gas, which effectively avoids the oxidation and decarbonization problems that may occur in the traditional tempering process. It can not only eliminate the residual stress after quenching of the workpiece, but also eliminate the residual stress of the workpiece. Improve the toughness and dimensional stability of the workpiece, but also optimize the organizational structure of the material, and greatly improve the surface quality and comprehensive mechanical properties of the workpiece; It can meet the tempering needs of different materials (such as alloy steel, titanium alloy, high-speed steel, etc.), and is widely used in aerospace, automobile manufacturing, mold processing, electronic components and many other fields, helping various industries to produce high-quality and high-performance parts.