Method of treating molten metal in centrifugal castings

摘要

A pouring chute is positioned with its discharge end disposed within an elongated hollow casting mold which is rotatably supported on a plurality of rollers. A molten metal is poured from a ladle into a receiving end of the pouring chute while the casting mold is rotating. A treating agent in wire form is fed by a wire feed mechanism along a guide member positioned adjacent the pouring chute and into the stream of molten metal flowing through the pouring chute adjacent the discharge end thereof for meltably intermixing with the molten metal. The wire feed mechanism and hence the feed rate of the wire is controlled in direct proportion to the flow rate of the molten metal through the pouring chute.