Patent ID: 8002905
Filing Date: 2011-08-23
Classification: B23K

Abstract:
1. A brazing flux for the brazing of individual heat exchanger parts, comprising: a flux, comprising a base material, an organic polymer, and nanoparticles, wherein the flux contains nanoparticles in an amount between 0.01% by volume and 10% by volume, and wherein the nanoparticles comprise nanoaggregates dispersed in the organic polymer, wherein the base material used is potassium fluoroaluminates with the empirical formula K wherein the nanoparticles comprise at least one kind of nanoparticle selected from the group consisting of carbon nanoparticles, nanoscale pigments oxides, oxide hydrates, nitrides, transition metals, carbides of aluminum, carbides of silicon, carbides of boron, and cerium.