Metal fusion bonding – Process – With protecting of work or filler or applying flux
Patent
1977-03-28
1979-01-30
Kelly, Donald G.
Metal fusion bonding
Process
With protecting of work or filler or applying flux
228238, 228263, B23K 3102
Patent
active
041368134
ABSTRACT:
In a method of joining a pair of parts, wherein one of the parts is formed of a carbon-containing material and the other formed of a metal at least at its surface to be joined to said one part, the parts are first assembled with the surfaces to be joined in the required joining position, with a brazing material and a flux being provided at or adjacent the surfaces to be joined. The flux is chosen so that when raised to an elevated temperature above the melting point of the brazing material, it is capable of reacting with oxides and carbon at the surface of said one part, while the brazing material is chosen so as to be capable of being heated to said elevated temperature without decomposition. The assembly is then heated at least to said elevated temperature in a non-oxidizing atmosphere so as to melt the brazing material and cause the flux to react with surface oxides and carbon on said one part whereby, on cooling, a brazed joint is produced between the parts.
REFERENCES:
patent: 1722025 (1929-07-01), Wagener
patent: 2333622 (1943-11-01), McNab
patent: 2987808 (1961-06-01), Benham
patent: 3111746 (1963-11-01), Borg
patent: 3471921 (1969-10-01), Feenstra
patent: 3740831 (1973-06-01), Jordan
patent: 3778883 (1973-12-01), Bethsold
patent: 3894674 (1975-07-01), Weill
Kelly Donald G.
Lucas Industries Limited
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