Sand containing flux
AssigneeW. R. Grace & Co.
InventorJoseph Vastag
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Abstract
Zinc ammonium chloride type fluxes can be made that have longer life and reduced smoke characteristics by incorporating 1 to 50% sand into conventional fluxes for use on metal container side seam soldering baths, as well as into galvanizing fluxes.
Claims7
A composition consisting of (a) about 1 to 50 parts by weight of ordinary sand, and (b) a zinc ammonium chloride flux, sand flux being further characterized by a minimum weight content of zinc chloride-ammonium chloride mixture of at least 60% and an ammonium chloride within the range of 10 to 35%.
The process of fluxing metal surfaces to be coated by a layer of molten metal which comprises interposing between a molten metal bath and a supernatent zinc ammonium chloride flux, a layer of ordinary sand with a weight equal to at least about 1 to 50% of the weight of the flux.
Dependencies are inferred from the claim text.