Abstract: An induction heating apparatus having a refractory vessel for holding a quantity of material to be heated by the apparatus. The vessel being surrounded by, but does not touch, an induction coil having a plurality of helical turns. The turns of the induction coil have a surface on which is disposed a layer of high temperature superconducting material.
Abstract: A packaging system for an induction furnace has an equipment housing within which is located all the operating equipment for the furnace. The equipment is centrally located within the housing and is reached from either side by access panels in the housing cover, which forms a deck. The operating equipment is fully enclosed and protected by the housing, yet can be easily reached by means of the access panels for maintenance, trouble shooting and the like.
Abstract: A plurality of zones of an induction heating coil are individually controlled by varying the current through one or more zones of the coil to obtain a desired temperature profile in a workpiece. The current flow through a zone of the coil is determined by the conduction state of an associated saturable reactor, which is controlled in accordance with a preselected value or a variable value generated, for example, by a computer.
Type:
Grant
Filed:
August 29, 1983
Date of Patent:
March 19, 1985
Assignee:
Inductotherm Industries Inc.
Inventors:
Paul C. Boehm, John H. Mortimer, Henry M. Rowan, Robert C. Turner