Channel electric inductor assembly
AssigneeInductotherm Corp.
InventorsBernard M. Raffner, Karen Sarkissian
Life of this patent
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Abstract
The present invention relates to an electric channel inductor assembly and method of forming an electric channel inductor assembly. A nonremovable, hollow, nonmagnetic channel mold is used to form the one or more flow channels of the assembly. A heated fluid medium is circulated in the hollow interior of the mold after the mold is situated in the assembly to heat treat the refractory surrounding the exterior walls of the mold. After heat treatment a liquid is supplied to the hollow interior of the mold to chemically dissolve the mold.
Claims7
A method of forming an electric channel inductor assembly comprising the steps of:
- forming an outer shell of the a electric channel inductor assembly;
- locating one or more bushings in the electric channel inductor assembly;
- locating a hollow, substantially nonmagnetic, channel mold conformed to a shape of one or more flow channels between the interior wall of the outer shell and exterior surfaces of the one or more bushings, the exterior walls of the channel mold spaced apart from the interior wall of the outer shell and the exterior surfaces of the one or more bushings to form a refractory volume;
- installing refractory in the refractory volume;
- circulating a heated fluid medium through the hollow channel mold to heat the walls of the channel mold whereby the refractory adjacent to the outer surfaces of the hollow channel mold is subjected to a heat treatment to form a sealed refractory wall;
- and
- supplying a liquid to the hollow interior of the channel mold to chemically dissolve the hollow channel mold in the liquid.
Dependencies are inferred from the claim text.