Induction furnace with unique carbon foam insulation
AssigneeGrafTech International Holdings Inc.
InventorsDouglas J. Miller, Irwin C. Lewis
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Abstract
An insulative cap for an induction furnace comprising a carbon foam having a pore distribution such that at least about 90% of the pore volume of the pores have a diameter of between about 10 and about 150 microns and at least about 1% of the pores have a diameter of between about 0.8 and about 3.5 microns.
Claims9
An insulative plug for a furnace, comprising a plug having an outwardly extending peripheral flange and formed of a carbon foam having a pore distribution such that at least about 90% of the pore volume of the pores have a diameter of between about 10 and about 150 microns and at least about 1% of the pore volume of the pores have a diameter of between about 0.8 and about 3.5 microns.
Dependencies are inferred from the claim text.