Patent ID: 6872464
Filing Date: 2005-03-29
Classification: B23K,Y10T

Abstract:
1. A soldering agent for use in a diffusion-soldering process for producing soldered joints between metal parts, the soldering agent comprising: a solder material selected from the group consisting of a solder metal and a solder metal alloy; and a metal having a higher melting point than a melting point of said solder material, said solder material, a metal in the metal parts to be joined to one another, and part of said metal with said higher melting point forming an intermetallic phase during the diffusion-soldering process, said metal with said higher melting point and said solder material being present in a quantitative ratio such that in the diffusion-soldering process said solder material and said metal with said higher melting point merge into said intermetallic phase, in such a manner that said solder material reacts completely, to form said intermetallic phase with a thickness predetermined by an elastic deformability of said solder material, said metal with said higher melting point being retained in a quantity such that; in a soldered joint formed between the metal parts, a completely metallic electrically conductive solder seam being formed, and a maximum thickness of said intermetallic phase between retained parts of said metal with said higher melting point is defined by said metal with said higher melting point.