Electromagnetic induction casting apparatus
AssigneeSumitomo Mitsubishi Silicon Corporation
InventorsNaritoshi Kimura, Kenichi Sasatani, Kyojiro Kaneko
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Abstract
To restrict to a low level a temperature gradient of an ingot immediately after solidification in a bottomless crucible in a electromagnetic induction casting method using an electrically conductive bottomless crucible. An upper section and a lower section of an electrically conductive bottomless crucible to be disposed inside an induction coil are configured as a water-cooled section and a non-water-cooled section. Both the water-cooled section and the non-water-cooled section are divided by vertical slits into a plurality of portions in a circumferential direction. Rapid cooling with water in the lower section of the crucible is restricted.
Claims5
An electromagnetic induction casting apparatus for electromagnetically melting a raw material in an electrically conductive bottomless crucible which is disposed inside an induction coil and has at least a vertical portion divided by vertical slits into a plurality of portions in a circumferential direction, and pulling out the melt of raw material downward while allowing the raw material to be solidified,
- wherein an upper section and a lower section of said electrically conductive bottomless crucible are configured as a water-cooled section and a non-water-cooled section, and at least vertical portions of both the water-cooled section and the non-water-cooled section are divided by vertical slits into a plurality of portions in the circumferential direction.
Dependencies are inferred from the claim text.