Title:
METHOD AND DEVICE FOR PRODUCING METALLIC SLURRY FOR CASTING
Document Type and Number:
Japanese Patent JP3313220
Kind Code:
B2
Abstract:
PURPOSE: To obtain a slurry having fine and uniform non-dendritic crystal grains by rapidly cooling molten metal to half-solidified state while flowing in an inclining surface and thereafter, holding the slurry to the overheat condition.
CONSTITUTION: The molten metal (m) in a molten metal holding furnace 1 is held to the temp. near the liquids. This molten metal (m) is poured on a cooling plate 2. The molten metal (m) is rapidly cooled in the half-solidified state during flowing down on the cooling plate 2 to promote the generation of the crystal nuclei. Successively, this half-solidified metal is heated during flowing down on the overheating plate 3 and the growth of the crystal nuclei is promoted and introduced and incorporated into a mold 41 in a heating furnace 4 as the half-solidified metal state from a flow-down port 32 of the heating plate 3. The half-solidified metal is held for a prescribed time at the solid-liquid coexisting temp. in the mold 41 to promote good spheroidizing of the fine crystal grains and the metallic slurry for casting can be obtd.
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Inventors:
Shigeki Fukai
Susumu Orii
Susumu Orii
Application Number:
JP34149293A
Publication Date:
August 12, 2002
Filing Date:
December 10, 1993
Export Citation:
Assignee:
Ahresty Co., Ltd.
International Classes:
B22D11/00; B22D1/00; B22D17/30; B22D25/06; B22D27/04; C22C1/02; (IPC1-7): B22D1/00; B22D11/00; B22D17/30; B22D25/06; B22D27/04; C22C1/02
Domestic Patent References:
| JP1192446A |
Attorney, Agent or Firm:
Sadayuki Hosoi
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