Introduction and use of vacuum brazing filler metal, understand!
Release time:
2022-06-13
【Summary Description】 Vacuum brazing refers to the heating of the workpiece in a vacuum chamber, which is mainly used for the welding of high-quality products and easy-to-oxidize materials.
vacuum brazing, It means that the workpiece is heated in a vacuum chamber and is mainly used for welding high-quality products and easily oxidized materials. The vacuum brazing furnace includes a pressure vessel having a cylindrical sidewall and a door sized and positioned to close one end of the cylindrical sidewall. A workpiece handling system is mounted on the pressure vessel door for supporting a metal workpiece for heat treatment or brazing. The workpiece handling system includes means for rotating the workpiece during processing. A vacuum system may be connected to the workpiece such that the pressure inside the workpiece during brazing is below atmospheric pressure.
Advantages:
1. Vacuum brazing, because no flux, significantly improves the corrosion resistance of the product, eliminates all kinds of pollution, pollution-free treatment equipment costs, and has good safety production conditions;
2. Vacuum brazing not only saves a lot of expensive metal flux, but also does not require complex flux cleaning process, reducing production costs;
3. Vacuum brazing solder has good wettability and fluidity, and can weld more complex and narrow channel devices. Vacuum brazing improves the yield of the product and obtains a solid and clean working surface;
4. Compared with other methods, the internal structure and fixture of the furnace have a long 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 (Inconei), etc. can be brazed in a vacuum electric furnace. Designers determine the required materials according to the use of brazing devices, of which aluminum and aluminum alloy are the most widely used.
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