Method of removing a brazing alloy from stainless steel

Details Method of removing a brazing alloy from stainless steel Method of removing a brazing alloy from stainless steel

1974-03-18

1976-05-25

Satterfield, Walter R.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75118R, 134 2, 134 3, 148 1, 156 18, 156 19, 204146, C22B 300

Patent

active

039589846

ABSTRACT:
A method of removing high temperature brazing alloys from a stainless steel base wherein the brazing alloy is treated with an aqueous solution of an alkali cyanide and a nitro-substituted aromatic compound and also with an acid solution containing a minor amount of a base metal attack inhibitor.

REFERENCES:
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patent: 2649361 (1953-08-01), Springer et al.
patent: 2937940 (1960-05-01), Weisberg et al.
patent: 3367874 (1968-02-01), Haviland et al.
patent: 3543389 (1970-12-01), Baldauf et al.
patent: 3819494 (1974-06-01), Fountain
Tweney, C. (Ed.); Chamber's Technical Dictionary, New York, 1944, p. 579, (Nitric Acid).
Lyman, et al.; ASM Metals Handbook, Vol. 2, (Heat-Treating, Cleaning & Finishing) p. 605, (1964).
Hawley, G.; Condensed Chemical Dictionary, New York, 1971, (Aqua. Regis.) p. 74.

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