ELECTROMAGNETIC CASTING SYSTEMS INCLUDING FURNACES AND MOLDS FOR PRODUCING SILICON TUBES

A furnace for electromagnetic casting a tubular-shaped silicon ingot is provided. The furnace includes a mold, outer and inner induction coils and a support member. The mold includes an outer crucible and an inner crucible. The outer crucible is annular-shaped. The inner crucible is disposed in the...

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Bibliographic Details
Main Authors NITHIANANTHAN, Vijay, PEIDOUS, Igor
Format Patent
LanguageEnglish
French
German
Published 12.08.2020
Subjects
CASTING
CASTING OF METALS
CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
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Summary:A furnace for electromagnetic casting a tubular-shaped silicon ingot is provided. The furnace includes a mold, outer and inner induction coils and a support member. The mold includes an outer crucible and an inner crucible. The outer crucible is annular-shaped. The inner crucible is disposed in the outer crucible and spaced away from the outer crucible to provide a gap between the inner crucible and the outer crucible. The mold is configured to receive granular silicon in the gap. The outer induction coil disposed around the outer crucible. The inner induction coil disposed in the inner crucible. The outer induction coil and the inner induction coil are configured to heat and melt the granular silicon in the mold to form a tubular-shaped silicon ingot. The support member is configured to hold and move a seed relative to the mold during formation of the tubular-shaped silicon ingot on the seed.
Bibliography:Application Number: EP20180865244