Apparatus for producing solidified metals of high cleanliness

Details Apparatus for producing solidified metals of high cleanliness Apparatus for producing solidified metals of high cleanliness

1991-11-05

1992-12-15

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 1023, 75584, 266227, C22B 400

Patent

active

051713586

ABSTRACT:
An apparatus for producing solidified metals of high cleanliness removes floating matter such as oxides from the surface of molten metals prior to melt atomization. The apparatus includes a water-cooled melt vessel having a dam extending from a sidewall of the vessel at an acute angle to the sidewall. The dam extends above a preselected metal surface level of the interior of the vessel to form a floating matter trap region within the apex of the acute angle. There is a passageway through the dam sufficiently remote from the trap region that floating matter in the trap region is not in communication with the passageway. The passageway may be entirely below the metal surface level or extend from below the metal surface level to above the metal surface level, but sufficiently far away that floating matter can be forced away from the passageway, as by the herding action of a plasma torch. A receptacle may be placed adjacent to the trap region so that the floating matter can be directed into the receptacle and removed from the melt surface.

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