Title:
VACUUM MELTING AND CASTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/067910
Kind Code:
A1
Abstract:
Disclosed is a vacuum melting and casting device in which a melting furnace (2), a cooling roll (4), a rotary drum (5) for performing secondary cooling on a cast formed by the cooling roll are housed in a sealed container (1) to which an evacuation tube (6) and a gas introduction tube (7) are connected, wherein the durability of a support roller (51) for supporting the rotary drum so as to be rotatable is prevented from being decreased by the influence of dust within the sealed container.
A partition (8) which partitions off a roller disposition space (1a) in which the support roller (51) is disposed from a principal space (1b) within the sealed container (1) is provided. The partition (8) is configured from a first partition plate (81) affixed to the outer peripheral surface of the rotary drum (5) and a second partition plate (82) affixed to the inner wall surface of the sealed container (1) so as to face the first partition plate (81), and a ventilation path (83) through which the roller disposition space (1a) and the principal space (1b) communicate with each other is formed between both the partition plates (81, 82). The evacuation tube (6) is connected to the sealed container (1) so as to communicate with the principal space (1b), and the gas introduction tube (7) is connected thereto so as to communicate with the roller disposition space (1a).
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Inventors:
NAITOU, Satoshi (INC. 2500, Hagisono, Chigasaki-sh, Kanagawa 43, 〒2538543, JP)
Application Number:
JP2010/006934
Publication Date:
June 09, 2011
Filing Date:
November 29, 2010
Export Citation:
Assignee:
ULVAC, INC. (2500, Hagisono Chigasaki-sh, Kanagawa 43, 〒2538543, JP)
株式会社アルバック (〒43 神奈川県茅ヶ崎市萩園２５００番地 Kanagawa, 〒2538543, JP)
株式会社アルバック (〒43 神奈川県茅ヶ崎市萩園２５００番地 Kanagawa, 〒2538543, JP)
International Classes:
B22D11/06; B22D11/106; B22D18/06
Attorney, Agent or Firm:
SEIGA PATENT AND TRADEMARK CORPORATION (9th Fl, Saisho Bldg. 1-14 Nishi-Gotanda 8-chome, Shinagawa-k, Tokyo 31, 〒1410031, JP)
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