FIELD: high-temperature soldering.
SUBSTANCE: sheet for high-temperature soldering contains base layer (5) and solder plating. Layer of base (5) is made of aluminum or aluminum alloy. Solder plating comprises (a) composite flux layer (2) comprising a matrix of aluminum or aluminum alloy, including flux particles; (b) at least one filler alloy layer (1) which does not contain flux particles; and (c) flux-free layer (3) of aluminum or aluminum alloy, forming outer surface of at least one side of said sheet. Composite layer (a) of flux is located between said layer (b) of filler alloy and said layer (c) of aluminum or aluminum alloy.
EFFECT: self-fluxing sheet for high-temperature soldering is easy to manufacture and exhibits good characteristics of high-temperature soldering at relatively low content of flux; present invention also discloses a method of producing said sheet, a cladding plate, use of said sheet and a brazed heat exchanger.
14 cl, 2 dwg, 3 tbl, 4 ex
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| HEAT EXCHANGER MANUFACTURING METHOD | 1990 |
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RU2043885C1 |
