Braze furnace with improved inert gas system

Details Braze furnace with improved inert gas system Braze furnace with improved inert gas system

1993-08-16

1994-08-30

Heinrich, Samuel M.

Metal fusion bonding

Including means to apply flux or filler to work or applicator

Gaseous flux

228 46, 432 77, B23K 300

Patent

active

053419782

ABSTRACT:
A braze furnace of the inert gas type cooperatively uses the waste heat from the cooling chamber to vaporize liquid inert gas, while using the coolness of the inert gas being vaporized to accelerate the cooling process itself. The walls of the cooling chamber provide a hollow plenum into which stored liquified inert gas is metered and vaporized. From the plenum, vaporized gas is routed wherever needed to purge oxygen from the system. In addition, liquid gas can be injected directly into the cooling chamber for even quicker, direct part cooling and the purge the cooling chamber.

REFERENCES:
patent: 3756489 (1973-09-01), Chartet
patent: 4634044 (1987-01-01), Hargrove et al.
patent: 5172847 (1992-12-01), Barten et al.
patent: 5172848 (1992-12-01), Barten et al.
patent: 5195673 (1993-03-01), Irish et al.

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