Yield of alloying elements fed by cored wire into a copper melt

摘要

Alloying elements such as Fe, Zr and Mg in Cu were added by direct addition of powders and by feeding of cored alloy wire filled with alloying element powder in a lab scale furnace. The yield of Fe was the highest for both addition methods. Cored wire feeding was significantly more effective than the direct powder addition into the copper melt. Though the yield of Mg was almost zero by the addition of Mg powder, it was increased remarkably by the Mg cored wire feeding. Through the calculation of the model which was designed based on an industrial scale line, it was confirmed that the yield of the alloying elements was affected by the wire feed rate and the thickness of the copper tube that envelops an alloy powder.