Brazing preforms and method of brazing

Details Brazing preforms and method of brazing Brazing preforms and method of brazing

1974-09-26

1976-04-06

Jones, Jr., James L.

Metal fusion bonding

Process

With protecting of work or filler or applying flux

228254, 228263, 228238, 75161, B23K 104, B23K 3530

Patent

active

039484327

ABSTRACT:
Brazing preforms are disclosed which may take the form of wire, sheet or strip, and which are useful for joining copper, ferrous and nickel base alloys. The preforms of this invention are prepared from an alloy which contains manganese from 22 to 40%, iron from 0.1 to 2%, aluminum from 0.1 to 5%, zinc from 2 to 10%, balance essentially copper. A method of brazing is also disclosed which may be performed with or without a flux, and which is conducted in an inert atmosphere, at a temperature of from about 900.degree. to 1100.degree.C. The brazed products of this invention possess reduced brittleness and improved resistance to corrosion.

REFERENCES:
patent: 1892607 (1932-12-01), Bundy
patent: 2646620 (1953-07-01), Geddes et al.
patent: 2712175 (1955-07-01), Stark
patent: 3079252 (1963-02-01), Webb et al.
patent: 3134669 (1964-05-01), de Putter et al.
patent: 3197859 (1965-08-01), Cape
patent: 3323913 (1967-06-01), Bosman
patent: 3693246 (1972-09-01), Novikov et al.

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