Debrazing of structures with a powdered wicking agent

Details Debrazing of structures with a powdered wicking agent Debrazing of structures with a powdered wicking agent

1994-07-20

1995-08-08

Walsh, Donald P.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Post sintering operation

419 2, 419 23, 419 28, 419 30, 419 56, 501 1, B22F 700

Patent

active

054396379

ABSTRACT:
Brazed structures are disassembled with little or no physical damage to the components by coating the brazed joints with a powdered wicking agent, preferably mixed with a fugitive liquid binder to form an adherent slurry, then heating the joint to allow the brazing alloy to melt and be drawn into the powdered wicking agent by capillary action. After cooling, the powder and braze alloy are mixed together to form a loosely consolidated mass which can be readily removed by mechanical and/or chemical means so that the components can then be separated for repair or reuse.

REFERENCES:
patent: 4101691 (1978-07-01), Borchert
patent: 4274908 (1981-06-01), Fishter et al.
patent: 4302246 (1981-11-01), Brindisi, Jr.
patent: 4324626 (1982-04-01), McGivern, Jr.
patent: 5040718 (1991-08-01), Lee et al.
patent: 5167720 (1992-12-01), Diamond et al.
patent: 5219520 (1993-06-01), Brofman et al.

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