FORFARANDE FOR SMELTNING AV KOPPARLEGERINGAR

摘要

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. The salt has a melting point of from 660 to 800.degree.C. Additional amounts of said alloy are added through said flux layer.