Patent ID: 6648214
Filing Date: 2003-11-18
Classification: B05D,B23K

Abstract:
Method for partial or complete coating of surfaces of components of aluminum and its alloys with a uniform layer of homogeneously distributed solder, fluxing agent and binder for brazing of the components to one another,wherein solder, fluxing agent and binder are applied in powder form at high speeds up to 180 m/min onto the surfaces provided for brazing by means of electrostatic powder coating, wherein the powder particles are present in a particle size of 5 to 30 &mgr;m, preferably 10 to 15 &mgr;m, as well as a narrow particle size distribution with an average distribution of 10 to 15 &mgr;m, wherein the proportion of binder relative to the total quantity of powder is smaller than 35% by weight, wherein the uniform layer of homogeneously distributed solder, fluxing agent and binder has a layer thickness of less than 50 &mgr;m, preferably 15 &mgr;m, and heat is used for melting this layer.