Vacuum Brazing

Brazing under significantly reduced pressure that enables the evaporation of interfering surface films and prevents oxides. It is preferentially used for highly reactive materials such as titanium or nickel superalloys.

Vacuum brazing is done in a chamber from which the air is pumped out. Because there is no oxygen, oxides cannot form on the workpieces, and the surfaces stay clean. This is ideal for materials like titanium or nickel-based alloys that otherwise would tarnish quickly during brazing and not form a clean joint. You just have to make sure the vacuum holds during the whole process, otherwise the parts oxidize again and the seam won't work. After cooling, you can take the parts out as long as the chamber is clean and dry.

MetallurgieSchweißtechnik