Electric induction impeder
AssigneeInductotherm Corp.
InventorsPaul F. Scott, Michael A. Nallen, Oleg S. Fishman, John H. Mortimer
Life of this patent
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Abstract
An impeder for use in an electric induction welding process is provided. A cooling medium is circulated centrally through the impeder's magnetic material and between the interior of the impeder's high temperature enclosure and the exterior of the magnetic material within the impeder with the impeder entry and exit passages for the cooling medium located on the same side of the impeder.
Claims14
An impeder for controlling the magnetic field path in a workpiece in an electric induction welding process, the impeder comprising:
- a magnetic material having at least one entry passage formed centrally therethrough for an entry flow of a cooling medium at a first end of the magnetic material;
- and
- a high temperature enclosure surrounding the magnetic material, the exterior of the magnetic material spaced apart from the interior wall of the high temperature enclosure to form at least one exit passage for exit flow of the cooling medium at the first end of the magnetic material, the at least one exit passage in communication with the at least one entry passage, the high temperature enclosure having at least one inlet port connected to the at least one entry passage for injecting the cooling medium into the at least one entry passage and at least one outlet port connected to the at least one exit passage for discharging the cooling medium from the at least one exit passage.
An impeder for controlling the magnetic field path in a workpiece in an electric induction welding process, the impeder comprising:
- a plurality of magnetically conductive, high Curie temperature solid wires assembled in a bundle, each of the plurality of wires electrically isolated from each other, the plurality of magnetically conductive, high Curie temperature solid wires having at least one entry passage formed centrally therethrough for an entry flow of a cooling medium at a first end of the plurality of magnetically conductive, high Curie temperature solid wires;
- and
- a high temperature enclosure surrounding the exterior of the plurality of magnetically conductive, high Curie temperature solid wires, the plurality of magnetically conductive, high Curie temperature solid wires spaced apart from the interior wall of the high temperature enclosure to form at least one exit passage for exit flow of the cooling medium at the first end of the plurality of magnetically conductive, high Curie temperature solid wires, the at least one exit passage in communication with the at least one entry passage, the high temperature enclosure having at least one inlet port connected to the at least one entry passage for injecting the cooling medium into the at least one entry passage and at least one outlet port connected to the at least one exit passage for discharging the cooling medium from the at least one exit passage.
An impeder for controlling the magnetic field path in a workpiece in an electric induction welding process, the impeder comprising:
- a rolled sheet of magnetically conductive, high Curie temperature material having at least one entry passage formed centrally therethrough for an entry flow of a cooling medium at a first end of the rolled sheet of magnetically conductive, high Curie temperature material;
- and
- a high temperature enclosure surrounding the rolled sheet of magnetically conductive, high Curie temperature material, the exterior of the rolled sheet of magnetically conductive, high Curie temperature material spaced apart from the interior wall of the high temperature enclosure to form at least one exit passage for exit flow of the cooling medium at the first end of the rolled sheet of magnetically conductive, high Curie temperature material, the at least one exit passage in communication with the at least one entry passage, the high temperature enclosure having at least one inlet port connected to the at least one entry passage for injecting the cooling medium into the at least one entry passage and at least one outlet port connected to the at least one exit passage for discharging the cooling medium from the at least one exit passage.
Dependencies are inferred from the claim text.