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US 4,233,007 AGranted
Apparatus for powder manufacture by atomizing a molten material
AssigneeUddeholms Aktiebolag
InventorStig A. Karlsson
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AssigneeUddeholms Aktiebolag
InventorStig A. Karlsson
Estimating the term…
The invention relates to an apparatus for atomizing a molten material, by disintegration of a stream of the molten material by fluid jets directed under high pressure against said stream, a first and a second fluid jet generated at opposite sides of the stream being converged towards a point of intersection lying aside of the stream of molten material, said first fluid jet being spread out in a plane intersecting the stream of molten material at an acute angle, said second fluid jet extending within .+-.10.degree. relative to the original direction of the stream of molten metal. The invention is characterized in that said second fluid jet is imparted the shape of a curved curtain with its concave side facing the stream of molten material, and the second nozzle, in a plane perpendicular to the pouring direction, is curved with its concave side facing the casting opening and directed essentially in the same direction as said casting opening.
An apparatus for granulating a molten material, preferably molten metal, by disintegration of a stream of the molten material by fluid jets, directed under high pressure against said stream, comprising a casting tundish of at least one casting opening, a first slit nozzle, and a second slit nozzle, one on each side of said casting opening, the first of said nozzles being directed in relation to the center axis of the casting opening such that said nozzle and fluid jet emanating therefrom form an acute angle to said stream, wherein the improvement comprises a second nozzle, in a plane perpendicular to a pouring direction from said casting tundish, as a concave segment of a curve with the concave side of said nozzle facing the casting opening and directed essentially in the same direction as said casting opening and defining a concave segment of less than about 180.degree..
Dependencies are inferred from the claim text.