Detection of melt adjacent to the exterior of the bushing in an induction channel furnace
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United States of America Patent
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Nov 29, 2016
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N/A
app pub date -
Nov 8, 2011
filing date -
Nov 8, 2010
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Abstract
Apparatus and method are provided for the detection of melt adjacent to the exterior of a bushing in an induction channel furnace. An electrically conductive mesh is disposed around the exterior surface of the bushing facing a refractory that separates the bushing from a channel in which molten metal (melt) flows. The mesh is connected to a grounded voltage source so that when an electrically conductive melt at ground potential in the channel breaches the refractory and penetrates the electrically conductive mesh an electrical circuit is completed through the melt and the grounded voltage source.
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