Metal fusion bonding – Process – With protecting of work or filler or applying flux
Patent
1977-09-26
1979-11-06
Larson, Lowell A.
Metal fusion bonding
Process
With protecting of work or filler or applying flux
228221, 228263, B23K 104, B23K 3528
Patent
active
041733029
ABSTRACT:
An aluminum-silicon base brazing alloy contains between 4 and 20 percent by weight of silicon and between 0.0001 and 1.0 percent by weight, preferably between 0.005 and 0.1 percent by weight, of at least one of the elements sodium, potassium and lithium. Optionally, the brazing alloy may further include between 0.01 and 10 percent by weight, preferably between 0.05 and 2 percent by weight, of at least one of the elements bismuth, strontium, barium and antimony as well as between 0.00001 and 1.0 percent by weight, preferably between 0.0002 and 0.1 percent by weight, of beryllium. The remainder of the alloy consists essentially of aluminum and impurities conditioned by production of the brazing alloy. The alloy is used for the fluxless brazing of aluminum-containing articles in substantially non-oxidizing atmospheres. The elements sodium, potassium and lithium make it possible to relax the requirements imposed on the brazing atmosphere from those imposed when using similar brazing alloys which, however, do not contain the last-mentioned elements.
REFERENCES:
patent: 2774686 (1956-12-01), Hodge
patent: 2943181 (1960-06-01), Gunow et al.
patent: 3081534 (1963-03-01), Bredzs
patent: 3272624 (1966-09-01), Quaas
patent: 3355281 (1967-11-01), Hansley
patent: 3373483 (1968-03-01), Miller
patent: 3395001 (1968-07-01), Stroup
patent: 3415697 (1968-10-01), Bredzs et al.
patent: 3673678 (1972-07-01), Moreau et al.
patent: 3678568 (1972-07-01), Knippenberg et al.
patent: 3782929 (1974-01-01), Werner
patent: 3811177 (1974-05-01), Schoer et al.
patent: 3898053 (1975-08-01), Singleton, Jr.
Schoer et al., German Printed Application 1,962,760, published 7/29/71.
Schoer et al., German Printed Application 2028683, published 12/16/71.
Schoer et al., German Printed Application 2143965, published 04/26/73.
Schoer Heinz
Schultze Werner
Larson Lowell A.
Ramsey Kenneth J.
Vereinigte Aluminium-Werke Aktiengesellschaft
LandOfFree
Process and alloy for brazing aluminum-containing articles does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process and alloy for brazing aluminum-containing articles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and alloy for brazing aluminum-containing articles will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-459045