Fluxing agent
AssigneeSolvay Fluor GmbH
InventorsHans-Walter Swidersky, Thomas Born
Life of this patent
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Abstract
A flux or a flux preparation, which contains complex alkali metal fluorides and additionally includes a water-soluble polymer, preferably polyvinyl alcohol or a polyvinyl alcohol derivative. The water-soluble polymer may be contained in the flux preparation as a granulate or powder or used as a water—soluble package for the flux or flux preparation.
Claims14
A flux composition comprising complex alkali metal fluorides and containing a water-soluble polymer.
A method of formulating a flux composition comprising introducing a water-soluble polymer into a composition comprising a fluxing agent.
A method of brazing a component of aluminum or an aluminum alloy to another component of aluminum or an aluminum alloy or a brazeable component of copper, brass, iron or stainless steel, said method comprising applying a flux composition comprising at least one complex alkali metal fluoride and a water-soluble polymer to said component, placing said component in contact with said another component to form an assembly, and heating the assembly until a brazed joint is formed.
An article of manufacture comprising a flux formulation composed of complex alkali metal fluorides enclosed within an outer package made of water-soluble polymer.
Dependencies are inferred from the claim text.