Process and apparatus for resistance heating of electrically conductive workpieces
AssigneeLicencia Talalmanyokat Ertekesito Vallalat
InventorAndor Mandoki
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Abstract
Elongated electrically-conductive workpieces such as bars, strips and wire, are resistance heated by passing an electric current through a length of the workpiece between a pair of spaced contacts. The contacts are electrically-conductive molten metal or molten salt, the molten material being continuously circulated to move it toward and into contact with the workpiece, so that it is not necessary to bend the workpiece to immerse it in a bath of molten material. The molten material is moved against the workpiece to form an extending portion of the molten material as a contact, by projecting it as a jet, pouring it as a stream, or causing it to flow over a subjacent supporting surface.
Claims9
A process for the resistance heating of electrically conductive workpieces, comprising establishing a solid support surface for a liquid, flowing a molten electrically-conductive material over said support surface with linear flow, maintaining a said workpiece in an undeformed condition in contact with said molten material flowing over said support surface with linear flow, and passing an electric current through said workpiece between said molten material and another electrical contact.
Apparatus for the resistance heating of electrically conductive workpieces, comprising a pair of contacts at least one of which is comprised by a molten electrically-conductive material, a solid support surface, means for continuously circulating said molten material with linear flow over said solid support surface, means for maintaining a said workpiece in an undeformed condition in contact with said molten material passing over said solid support surface with linear flow, and means for passing an electric current from one contact to the other through said workpiece.
Dependencies are inferred from the claim text.