Reaction bonding of ferrous metals

Details Reaction bonding of ferrous metals Reaction bonding of ferrous metals

1979-08-01

1981-06-23

Weidenfeld, Gil

Heat exchange

Radiator core type

Deformed sheet forms passages between side-by-side tube means

228198, 228263D, 428653, B23K 120, B23K 3534

Patent

active

042744830

ABSTRACT:
This invention relates to a method of bonding together a plurality of ferrous metal members, the resulting assembly and a heat exchanger comprising the thusly bonded metal members in which the members are bonded to each other by assembling them with aluminum metal between and in contact with them, coating this assembly with a liquid bonding composition as disclosed in Simpelaar U.S. Pat. No. 3,301,688 comprising a liquid solvent and a zinc halide and heating this assembly thereby causing the aluminum to displace zinc from the zinc halide with the zinc thereby uniting with the ferrous metal to form a secure joint comprising an alloy of iron from the ferrous metal members and zinc displaced from the zinc chloride.

REFERENCES:
patent: 2179258 (1939-11-01), Howarth
patent: 2368403 (1945-01-01), Barnes
patent: 2817895 (1957-12-01), Chill et al.
patent: 3069765 (1962-12-01), Simpelaar
patent: 3247899 (1966-04-01), Branch
patent: 3287540 (1966-11-01), Connelly
patent: 3301688 (1967-01-01), Simpelaar
patent: 4032059 (1977-06-01), Plegat
patent: 4150179 (1979-04-01), Jones

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