Method of brazing stainless steels

Details Method of brazing stainless steels Method of brazing stainless steels

1979-01-29

1980-09-23

Smith, John D.

Metal fusion bonding

Process

With pretreating other than heating or cooling of work part...

204 44, 228209, 228210, 228219, 228263, 427229, B23K 104, B23K 120, B23K 3528

Patent

active

042238269

ABSTRACT:
A method of brazing a stainless steel with a stainless steel or another metal wherein, in brazing the stainless steel with a stainless steel or another metal, the stainless steel side of both opposed jointing parts is plated with copper, then a copper base-tin alloy of a melting point of 850.degree. to 1081.degree. C. is used as a brazing material and said brazing material is heated together with the jointing parts to a temperature lower than the melting point of copper in a nonoxidizing gas atmosphere such that the brazing material may be melted at said temperature.
The brazed stainless steels are cooled by being quickly passed through a temperature range of 850.degree. to 600.degree. C. The bonding force of the resulting stainless steels is much higher than heretofore obtained.

REFERENCES:
patent: 2779999 (1957-02-01), Boam et al.
patent: 3440151 (1969-04-01), Duva et al.
patent: 3672036 (1972-06-01), Ziemianski
patent: 3821018 (1974-06-01), Grant
patent: 3844027 (1974-10-01), Hagen
Brazing Manual, published by American Welding Society Inc., pp. 36, 43, 44, 184-193, c 1963.
Metal Engineering Dictionary, Masao Terasawa, p. 505, Nov. 30, 1962.

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