Method for partially or completely coating the surfaces of components produced from aluminum or its alloys with solders, fluxing agents or binders for brazing
AssigneeErbsloh Aktiengesellschaft
InventorNorbert-William Sucke
Life of this patent
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Abstract
In a 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, the 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 electrostatic powder coating. The powder particles have a particle size of 5 to 30 μm. The proportion of binder relative to the total quantity of powder is smaller than 35% by weight. The uniform layer of homogeneously distributed solder, fluxing agent and binder has only a thickness of less than 50 μm. Heat is used melting this layer.
Claims25
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 μm, preferably 10 to 15 μm, as well as a narrow particle size distribution with an average distribution of 10 to 15 μm,
- 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 μm, preferably 15 μm, and
- heat is used for melting this layer.
Dependencies are inferred from the claim text.