Vacuum and inert gas brazing
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.
Two-station atmosphere brazing
Three-station high vacuum brazing can process multiple parts per bell jar.
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