Method of bonding substrates made of metal or alloy
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsMinoru Inamura, Noboru Takeuchi, Kazuhiro Inukai, Kentaro Taninouchi, Shin Utsunomiya
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Abstract
Substrates made of a metal or an alloy are bonded by coating a brazing flux incorporating a metallic powder or a metal compound powder on the surface of the substrate having a melting point of higher than 700.degree. C.; and heating them at a temperature higher than a melting point of the flux but lower than a melting point of the metal of the metallic powder or the metal compound powder whereby a molten crystallization and a mutual diffusion are caused between the substrates and the metal activated by the molten flux.
Claims9
A method of bonding metal or metal alloy substrates in air, comprising:
- coating a solid brazing flux containing a powdered metal or powdered metal compound onto the surface of said substrates having a melting point greater than 700.degree. C.;
- and
- heating said coated substrates to a temperature greater than the melting point of the flux but less than the melting point of the powdered metal or powdered metal compound, whereby molten crystallization and mutual diffusion occurs between metal of the surfaces of the substrates and the activated metal derived from the powdered metal or powdered metal compound containing flux.
Dependencies are inferred from the claim text.