Method for brazing strips of aluminium alloy

Details Method for brazing strips of aluminium alloy Method for brazing strips of aluminium alloy

2011-04-19

2011-04-19

Ward, Jessica L (Department: 1735)

Metal fusion bonding

Process

Critical work component, temperature, or pressure

C228S262900, C228S245000, C420S528000

Reexamination Certificate

active

07926701

ABSTRACT:
The invention relates to an aluminum alloy strip or sheet with the following composition (% by weight):Si 0.3-1.0; Fe<1.0; Cu 0.3-1.0; Mn 0.3-2.0; Mg 0.3-3.0; Zn<6.0; Ti<0.1; Zr<0.3; Cr<0.3; Ni<2.0; Co<2.0; Bi<0.5; Y<0.5, other elements <0.05 each and 0.15 total, the remainder being aluminum,coated on at least one face with an aluminum brazing alloy containing 4 to 15% of silicon and 0.01 to 0.5% of at least one of the Ag, Be, Bi, Ce, La, Pb, Pd, Sb, Y elements or mischmetal. Sheets and strips according to the invention can be used particularly for fluxless brazing of heat exchangers.

REFERENCES:
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Patent Abstract of Japan. vol. 0143, No. 56, Aug. 2, 1990 & JP 02 129333 A (Mitsubishi Alum Co. Ltd.) May 17, 1990. Abstract Example 6,7; table 1,2.

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