Reaction bonding of ferrous metals

Details Reaction bonding of ferrous metals Reaction bonding of ferrous metals

B - Operations, Transporting

23

K

26/110, 13/12, 2

B23K 1/20 (2006.01) B23K 20/16 (2006.01) B23K 35/34 (2006.01) B23P 15/26 (2006.01)

Patent

CA 1135034

Abstract of the Disclosure 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 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.

350032

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