Abstract: By means of the heating action and cleaning action of ton bombardment, a workpiece, put on the cathode in glow discharge, can be brazed without flux and in a comparatively low vacuum, one at the level of about 1Pa. The Brazing temperature is controlled mainly by the working voltage and barometric pressure, and various technical measures are adopted to meet the requirements of oven heating, localized heating, activatory elements permeating and cleaning action improving. Compared with common vacuum brazing, the ion bombardment brazing has many advantages, such as high productivity, low equipment investment, uncritical requirements for surface and wide accomodation for application.

Key words: 放电, 离子, 钎焊