Molten metal heating, stirring and casting apparatus
AssigneeASEA Aktibolag
InventorsBertil Hanas, Sven-Einar Stenkvist
Life of this patent
Estimating the term…
Abstract
A molten steel ladle has a melt electrode in its side wall near its bottom so a DC arc can be formed with molten metal in the ladle for heating and stirring the metal, the ladle being also used for casting. The melt electrode is free from the ladle's casting nozzle and the outside of the ladle is free from projections extending beyond the ladle's trunions, so the ladle can be crane-carried in the usual manner.
Claims5
A metal heating, stirring and casting apparatus comprising a ladle having bottom and side walls and refractory lining covering the insides of said walls for containing the molten metal, a valved casting nozzle in said bottom wall, an electric contact in said side wall at a position offset from said nozzle and adjacent to said bottom wall so as to be contacted by the molten metal when in said ladle, an arcing electrode positioned above said ladle so as to form an arc with the molten metal when in the ladle, and means for connecting said contact and electrode with DC for powering said arc.
Dependencies are inferred from the claim text.