Vacuum switching tube vacuum brazing furnace

Vacuum Brazing Furnace Hot Zone Temperature Control Partition

In the heating chamber vacuum furnace to form a magnesium-containing atmosphere to protect the exposed aluminum surface is no longer oxidation. On the other hand penetrate through an alumina film slit aluminum surface, forming alloy partially melted, further tunneling oxide film. Produce liquid solder wetting and flow on non-fresh surface oxide film, and filled weld formed under the action of capillary forces the fillet.