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Primary Examiner: Satterfield, Walter R.
Assistant Examiner:
Attorney: Bachman; Robert H., Dawson; Robert A.

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Title: Method of melting copper alloys with a flux

Abstract: Improved method for melting copper base alloys containing from 2 to 12% aluminum including the steps of covering a molten mass of said copper base alloy with an essentially continuous flux layer of a molten salt consisting essentially of from 10 to 90% by weight of potassium chloride, from 10 to 90% by weight of sodium chloride and less than 5% by weight of other materials, said salt having a melting point of from 660 to 800.degree. C, and adding additional amounts of said alloy through said flux layer.

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Other info:

Inventors: Tyler, Derek E. (Cheshire, CT, US)
Dickinson, David W. (Hinckley, OH, US)
Dore, James E. (Ballwin, MO, US)

Application Number: 659241
Filing Date: 1976-02-19
Publication_date: 1977-07-26
Assignee: Olin Corporation (New Haven, CT)
Primary Class(es): 75/646 75/638, 75/652, 420/478, 420/489
Other Classes:
US Patent Ref:

446351	Feb, 1891	Jeancon	75/162.
2944890	Jul, 1960	Klement	75/162.
3754897	Aug, 1973	Derham	148/26.
3958979	May, 1976	Valdo	75/135.

Other Refs: Other References: Levin, E. et al., Phase Diagrams..., (KCl-NaCl), Columbus, 1964, FIG. 1258.
Lyman, T. (Ed.), Metals Handbook, vol. 2, Cleveland (ASM) 1964, p. 59.