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US 5,542,993 AGranted
Low melting nickel-palladium-silicon brazing alloy
AssigneeAlliedSignal Inc.
InventorAnatol Rabinkin
Life of this patent
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Abstract
A palladium-based alloy is disclosed having a composition consisting essentially of nickel in the range of about 3 to about 30 atom percent, silicon in the range of about 15 to about 20 atom percent, the balance being palladium plus incidental impurities. The alloys of the present invention are particularly suited for joining stainless steels employed in orthodontic devices at brazing temperatures less than about 900.degree. C.
Claims4
A process for brazing stainless steel, comprising the steps of:
- a) providing juxtaposing stainless steel parts to define a joint to be brazed;
- b) brazing said parts utilizing a homogeneous, ductile foil formed from an alloy having a composition consisting essentially of Ni.sub.a Si.sub.b Pd.sub.bal, where the subscripts "a" and "b" are in atomic percent and wherein the ratio of Ni to Pd is between about 1/7 and 1/16 and "b" is between about 15 and about 20, said foil having a thickness of at least about 150 .mu.m.
Dependencies are inferred from the claim text.