Its features are:

 (1) In the whole brazing process, no flux is used, and the parts to be brazed are under vacuum conditions, and there will be no oxidation, carbon increase, decarburization and pollution deterioration, and the brazing seam is beautiful.

 (2) During brazing, the whole part is heated evenly, the thermal stress is small, the deformation can be controlled to the minimum degree, and the machining without allowance and precision brazing can be realized.

 (3) Multiple adjacent brazing seams can be brazed at one time, or multiple components can be brazed in the same furnace according to the capacity of the furnace to improve the brazing efficiency.

 (4) There are many kinds of basic metals that can be brazed, especially suitable for brazing aluminum alloys, titanium alloys, stainless steels, high temperature alloys, etc. It is also suitable for composite materials, ceramics, graphite, glass, diamond and other materials.

 (5) The product design approach is broadened, and it can be used for components with narrow grooves, extremely small transition tables, blind holes, closed containers, and components with complex shapes, without considering the corrosion, cleaning, etc. caused by flux. damage, etc.