| 摘要 |
PURPOSE:To continuously and efficiently cast silicon improved in the quality and prevented in the generation of cracks by disposing a prescribed casting section, a heat-insulating container, and an ingot-lowering means for inserting a support bar into the heat-insulating container and subsequently lowering the ingot. CONSTITUTION:A bottom-less crusible 22 whose axially directional part is divided into plural pieces in the circumferential direction is disposed, and silicon is melted in the crucible 22 by an electromagnetic induction method in a state not contacting with the inner wall of the crucible. The obtained silicon molten liquid 11 is supplied in a casting section 20, downward lowered and simultaneously solidified. The obtained bar-like ingot 10 is lowered, guided into a cylindrical heat-insulating container 30 and subsequently subjected to heat insulation. The support bar 41 of an ingot-lowering means 40 is inserted into the lower part of a container 30. The ingot 10 is supported with a support bed 42 from the lower direction, and the support bar 41 is simultaneously pulled down in the lower direction to continuously produce the ingot 10. |
