Apparatus and method for electrically heating a moving wire containing treating agents
an apparatus electrically heats a wire containing treating agents to a preselected temperature while controllably passing the heated wire into molten metal of a mold. The apparatus includes an insulated guide tube which has inlet and outlet contact orifices and wire feed apparatus for urging the wire through the guide tube at a preselected rate. A power supply is connected to the inlet and outlet contact orifices and the wire is in contact with the inlet and outlet orifices and forms an electric circuit. The circuit delivers electric current to the wire of a magnitude sufficient for increasing the temperature of the wire to a preselected temperature at the outlet orifices prior to entry of the wire into the molten metal.A method of heating the moving wire prior to entry of the wire into molten metal of a mold is provided by connecting the power supply to the wire and forming the electric circuit, urging the wire through the circuit and into the mold at a preselected rate, and heating the wire to a preselected temperature by passing electric current of a preselected magnitude through the circuit.
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Type: Grant
Filed: Nov 25, 1977
Date of Patent: Sep 5, 1978
Assignee: Caterpillar Tractor Co. (Peoria, IL)
Inventor: Bruce T. Blatzer (Peoria, IL)
Application Number: 5/855,036
International Classification: C21D 962;
