Induction melting furnace
AssigneeU.S. Philips Corporation
InventorsPieter Aart Naastepad, Jacob Willem DE Ruiter
Life of this patent
Estimating the term…
Abstract
An induction melting furnace comprising a conical crucible and a conical induction coil which envelops the crucible. The induction furnace comprises means for bringing the crucible under a compression stress and for maintaining this compression stress during the melting process.
Claims13
An induction melting furnace comprising a prefabricated conical crucible, a water-cooled induction coil and a supporting body having a conical inner circumference for supporting said conical crucible, and tensioning means arranged to subject the prefabricated crucible to an axial load during mounting to bring it under a radial compression stress and for maintaining said radial compression stress during the operation of the furnace.
An induction type melting furnace comprising a conical shaped water-cooled induction coil and a support body having a conical inner surface, a conical shaped crucible supported within said support body and induction coil, and means for applying an axial force to said crucible so as to bring it under a radial compression stress and for maintaining said stress during furnace operation, the apex angle of the inner surface of the support body being related to the coefficient of friction between the crucible and support body so as to provide a self-clamping effect between the crucible and support body during furnace operation.
Dependencies are inferred from the claim text.