1. Vacuum brazing, because no brazing flux is used, significantly improves the corrosion resistance of products, eliminates all kinds of pollution, and the cost of treatment equipment is pollution-free and the conditions for safe production are good.

2. Vacuum brazing not only saves a lot of expensive metal flux, but also does not need complicated flux cleaning process, which reduces the production cost.

3. The vacuum solder has good wettability and fluidity, and can be used to weld devices with more complicated and narrow channels. Vacuum brazing improves the yield of products and obtains a solid and clean working face.

4. Compared with other methods, the internal structure and fixture of the furnace have long service life, which can reduce the maintenance cost of the furnace.

5. There are many materials suitable for vacuum brazing, such as aluminum, aluminum alloy, copper, copper alloy, stainless steel, alloy steel, low carbon steel, titanium, nickel, Inconel, etc. Can be brazed in vacuum electric furnace. Designers determine the required materials according to the purpose of brazing devices, among which aluminum and aluminum alloys are the most widely used.