摘要 |
A method of and apparatus for treating molten metal to achieve effective removal of such unwanted inclusions as gases, alkali metals, entrained solids, and the like. The method comprises continuously introducing molten metal into a container forming a trough or trough section, such as the trough provided between a melting furnace and a casting machine, providing at least one mechanically movable gas dispenser (11) submerged within the metal (15) in the container and introducing a gas into the metal adjacent to a gas disperser (14) in a part of the trough forming a treatment zone such that the gas is broken into smaller bubbles by the gas dispenser (11) and dispersed through the treatment zone. The trough or trough section is such that it exhibits a metal holdup of less than 50 %.
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申请人 |
ALCAN INTERNATIONAL LIMITED;WAITE, PETER, D.;LAVOIE, SERGE, EUGENE;DUBE, GHYSLAIN;DUMONT, ROBERT |
发明人 |
WAITE, PETER, D.;LAVOIE, SERGE, EUGENE;DUBE, GHYSLAIN;DUMONT, ROBERT |