Vacuum Brazing is a joining process whereby
a filler metal is heated to its melting temperature above 450C
and distributed between two or more base materials by capillary
action while protected by an oxygen free (vacuum) atmosphere.
SRI Hermetics has several vacuum brazing stations that are
used for joining metal-to-metal as well as metal-to-ceramic.
The primary advantages of vacuum brazing over conventional
brazing is the high density, oxide free joints that are created
between the parent materials and the ability to bond materials
that cannot be bonded using other brazing processes.
The design of sophisticated hermetic assemblies often requires
the combination of many different materials to achieve desired
performance characteristics of the assembly. SRI Hermetics’ design
engineers use vacuum brazing as one of their fundamental methods
to join some of these different materials.