Method and apparatus for introducing solid substances into liquid metals
AssigneeItalsider S.p.A.
InventorsGiovanni Guarino, Alberto Praitoni, Vittorio Saverese
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Abstract
Solid substances are introduced into a bath of molten metal by pushing a hollow metal tube filled with the solid substance, through a tubular former that imparts a spiral shape to the carrier tube. The spiral rotates about a vertical axis as it descends into the bath of molten metal.
Claims6
A method for the introduction of a solid substance into a molten metal bath, comprising feeding a hollow tubular carrier containing the said substance into a molten metal bath in the form of a spiral, and rotating the spiral about the axis of the spiral while immersing the spiral in the bath.
A cored spiral tube comprising a hollow tubular carrier containing deoxy-desulphurizing substances for introduction into a metallic bath.
Dependencies are inferred from the claim text.