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Title:
LOW-PRESSURE CASTING MACHINE, AND LOW-PRESSURE CASTING METHOD
Document Type and Number:
Japanese Patent JP2009101404
Kind Code:
A
Abstract:

To provide a low-pressure casting machine whose cost can be made low and which can produce a casting of high quality, and a low-pressure casting method.

Disclosed is a low pressure casting machine provided with: a holding furnace 4 having a molten metal waiting tank 2 and a molten metal pouring tank 3; a stoke 9 communicating the molten metal pouring tank 3 and a mold 5; a check valve 11 interposed in a communication path 10 between the molten metal waiting tank 2 and the molten metal pouring tank 3, allowing the flow of the molten metal from the molten metal waiting tank 2 to the molten metal pouring tank 3 and regulating the flow of the molten metal from the molten metal pouring tank 3 to the molten metal waiting tank 2; and an inner pressure regulation means 12 capable of individually regulating the inner pressure of the molten metal waiting tank 2 and the molten metal pouring tank 3, and increasing the inner pressure of the molten metal waiting tank 2 and replenishing the molten metal in the molten metal waiting tank 2 to the molten metal pouring tank 3 till the molten metal in the molten metal pouring tank 3 reaches a set level LS.


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Inventors:
AZEYANAGI MOTOHIRO
Application Number:
JP2007277562A
Publication Date:
May 14, 2009
Filing Date:
October 25, 2007
Export Citation:
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Assignee:
OSAKA GIKEN KK
International Classes:
B22D18/04; B22D18/08; B22D23/00; B22D21/04
Domestic Patent References:
JP2000271723A2000-10-03
JPS61249657A1986-11-06
JPS6376359U1988-05-20
JPH058024A1993-01-19
JPH04198433A1992-07-17
JP2001321914A2001-11-20
JP2007203316A2007-08-16
JP2006231341A2006-09-07
Attorney, Agent or Firm:
Takao Yanagino
Norio Morioka
Hisayoshi Sekiguchi