PQ series vacuum brazing furnace is mainly used as a cutting-edge equipment to achieve high-precision connection of metal materials in a vacuum environment. By virtue of its non-oxidation heating and capillary action of liquid brazing metal, it can weld complex components such as narrow channels, honeycomb structures and multi-layer plate fin heat exchangers by using the high fluidity of brazing metal under vacuum, and realize the high-strength and high-air-tightness connection of complex structural parts. Especially suitable for precision welding of a variety of materials, high yield, has become the core equipment of high-end manufacturing complex component connection; Widely used in aerospace, electronics and semiconductors, nuclear energy equipment, automobile manufacturing, medical equipment and other fields.