Metallurgical apparatus – Means for melting or vaporizing metal or treating liquefied... – Slag refining means
Patent
1992-11-02
1994-05-10
Wyszomierski, George
Metallurgical apparatus
Means for melting or vaporizing metal or treating liquefied...
Slag refining means
266202, 222603, B22F 908
Patent
active
053101650
ABSTRACT:
A method of atomization of refined metal is taught. The method starts with the introduction of unrefined metal into an electroslag refining process in which the unrefined metal is first melted at the upper surface of the refining slag. The molten metal in the form of droplets is refined as it passes through the molten slag. The refined metal droplets are collected in a cold hearth apparatus having a skull of refined metal formed on the surface of the cold hearth and protecting the cold hearth from the leaching action of the refined molten metal. A cold finger bottom pour spout is formed at the bottom of the cold hearth to permit dispensing of molten refined metal from the cold hearth. The rate of flow of molten metal through the cold finger apparatus is controlled principally by controlling the rate of melting of the unrefined metal. The metal flowing from the cold finger apparatus is introduced to the upper end of a ceramic melt guide tube. Liquid metal emerging from the lower end of the melt guide tube is atomized by a gas orifice closely coupled to the lower end of the melt guide tube.
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Benz Mark G.
Miller Steven A.
Sawyer Thomas F.
General Electric Company
Magee Jr. James
Wyszomierski George
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