Brazing above 1450 degrees F. usually requires the use of gas shielding or vacuum processing. Gas shielding can be argon, nitrogen or hydrogen. Hydrogen creates a reducing atmosphere which acts to clean copper at elevated temperatures. Vacuum brazing provides the cleanest parts. Either method can produce braze joints without the use of flux.
Giltron, Inc. performs contract vacuum and atmosphere induction brazing and can also engineer an atmosphere brazing system for your application. E-mail us for details.
Three-station high vacuum brazing can process multiple parts per bell jar.
Two-station atmosphere brazing
