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Title:
ELECTROMAGNETIC CASTING DEVICE FOR SILICON INGOTS
Document Type and Number:
WIPO Patent Application WO/2012/011160
Kind Code:
A1
Abstract:
Disclosed is an electromagnetic casting device for continuously casting silicon ingots by introducing a silicon material into a bottomless cooling crucible that is arranged inside a chamber, melting the silicon material through induction heating caused by an induction coil, and solidifying the molten silicon while lowering same from the cooling crucible. The electromagnetic casting device includes a ventilation pipe that is connected to the upper and lower sections of the side wall of the chamber, and that takes in atmospheric gas above the cooling crucible and sends out the atmospheric gas below the cooling crucible. A dust collector and a magnetic separator are provided on the path of the ventilation pipe. Thus, during continuous casting, the molten silicon can be prevented from being contaminated by metal impurities due to the free convection of the atmospheric gas inside the chamber.

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Inventors:
NAITOU, Nobumasa (2-1 Shibaura 1-chome, Minato-k, Tokyo 34, 〒1058634, JP)
内藤　宣正 (〒34 東京都港区芝浦一丁目２番１号株式会社ＳＵＭＣＯ内 Tokyo, 〒1058634, JP)
KUSABA, Tatsumi (2-1 Shibaura 1-chome, Minato-k, Tokyo 34, 〒1058634, JP)
Application Number:
JP2010/006739
Publication Date:
January 26, 2012
Filing Date:
November 17, 2010
Export Citation:
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Assignee:
SUMCO CORPORATION (2-1 Shibaura 1-chome, Minato-ku Tokyo, 34, 〒1058634, JP)
株式会社ＳＵＭＣＯ (〒34 東京都港区芝浦一丁目２番１号 Tokyo, 〒1058634, JP)
NAITOU, Nobumasa (2-1 Shibaura 1-chome, Minato-k, Tokyo 34, 〒1058634, JP)
内藤　宣正 (〒34 東京都港区芝浦一丁目２番１号株式会社ＳＵＭＣＯ内 Tokyo, 〒1058634, JP)
International Classes:
C01B33/02; B22D11/00; B22D11/041; B22D11/11; B22D21/00; B22D23/00; B22D23/06; B22D25/04; B22D27/02; B22D11/12
Attorney, Agent or Firm:
MORI, Michio et al. (M. MORI PATENT OFFICE, 17-23 Higashinaniwa-cho 5-chome, Amagasaki-sh, Hyogo 92, 〒6600892, JP)
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Claims:



 
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