TREATMENT OF CAST METAL IN COPE MOULD POURING BASIN

摘要

A method and means are provided for treating molten metal with an additive in a foundry mold. A recessed treatment chamber for an additive is provided in the top of a mold. The chamber is covered with a discrete refractory core body. Molten metal poured on the core body is directed into the chamber where it reacts with the additive before entering the casting cavity. The subject invention is particularly adapted to making nodular or compacted graphite iron castings by treating grey iron with a magnesium containing additive.