MOLTEN METAL TRANSPORTATING LADLE AND METHOD OF TAPPING MOLTEN METAL

Title:

MOLTEN METAL TRANSPORTATING LADLE AND METHOD OF TAPPING MOLTEN METAL

Document Type and Number:

WIPO Patent Application WO/2005/009650

Kind Code:

A1

Abstract:

A molten metal-transporting ladle of a pressure tapping type has a ladle body for receiving molten metal, an upper lid for covering an upper end opening portion of the ladle body, a lid for work openably covering an opening portion formed in a part of the upper lid, and a tapping portion extending from a lower end portion of the ladle body to above the ladle body. The lid (1) for work has lid bodies (13a, 13b) covering from the above the opening portion in the upper lid, a gas-introducing portion (11) provided in the top surface of the lid bodies (13a, 13b), and a heat-resistant layer provided inside the lid for work. The heat-resistant layer is constituted of an air-permeable fire-resistant material layer (12). A gas pressurizing the inside of the ladle body is introduced from the gas-introducing portion (11) into the ladle body through the air-permeable fire-resistant material layer (12). A heat-insulating material layer having an air-permeable heat-insulating material layer or a gas-circulating portion can be included between the air-permeable fire-resistant material layer (12) and the gas-introducing portion (11).

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Inventors:

Ukaji, Bunji c/o YOKI CO. LTD. (1, Kitayama, Hokoji-ch, Nishio-shi Aichi 92, 44508, JP)
Ogawa, Kenji c/o DAIKI ALUMINIUM INDUSTRY CO. LTD. (46, Minamikyuhoji 3-chom, Yao-shi Osaka 76, 58100, JP)
Matsumoto, Toshiyuki c/o CHUO CERAMIC CO. LTD. (5-1159, Kozoji-cho Kit, Kasugai-shi Aichi 16, 48700, JP)
Nishihira, Akira c/o NIPPON CRUCIBLE CO. LTD. (11-32, Inadashinmachi 3-chom, Higashiosaka-shi Osaka 04, 57700, JP)
Mukai, Katsuyoshi c/o NIPPON CRUCIBLE CO. LTD. (2-22, Inadauemachi 1-chom, Higashiosaka-shi Osaka 02, 57700, JP)

Application Number:

PCT/JP2004/010901

Publication Date:

February 03, 2005

Filing Date:

July 23, 2004

Export Citation:

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Assignee:

NIPPON CRUCIBLE CO., LTD. (21-3, Ebisu 1-chome Shibuya-ku, Tokyo 13, 15000, JP)
DAIKI ALUMINIUM INDUSTRY CO., LTD. (46 Minamikyuhoji 3-chome, Yao-shi, Osaka 76, 58100, JP)
Ukaji, Bunji c/o YOKI CO. LTD. (1, Kitayama, Hokoji-ch, Nishio-shi Aichi 92, 44508, JP)
Ogawa, Kenji c/o DAIKI ALUMINIUM INDUSTRY CO. LTD. (46, Minamikyuhoji 3-chom, Yao-shi Osaka 76, 58100, JP)
Matsumoto, Toshiyuki c/o CHUO CERAMIC CO. LTD. (5-1159, Kozoji-cho Kit, Kasugai-shi Aichi 16, 48700, JP)
Nishihira, Akira c/o NIPPON CRUCIBLE CO. LTD. (11-32, Inadashinmachi 3-chom, Higashiosaka-shi Osaka 04, 57700, JP)
Mukai, Katsuyoshi c/o NIPPON CRUCIBLE CO. LTD. (2-22, Inadauemachi 1-chom, Higashiosaka-shi Osaka 02, 57700, JP)

International Classes:

B22D35/00; B22D39/06; B22D41/00; B22D41/12; (IPC1-7): B22D39/06; B22D35/00; B22D41/12; B22D41/00

Attorney, Agent or Firm:

Saegusa, Eiji (Kitahama TNK Building, 1-7-1 Doshomachi, Chuo-k, Osaka-shi Osaka 45, 54100, JP)

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