Title:
METHOD FOR REMOVING CORE SAND STUCK TO CAST PRODUCT
Document Type and Number:
Japanese Patent JP2006181580
Kind Code:
A
Abstract:
To easily and fully remove sand from a cast product having fine and complicated core shape, such as automobile engine in a method for removing the core sand stuck to a workpiece.
This method for removing the core sand is performed as the followings, by which a cast product formed with the casting and stuck to the core sand is held for 10-30 min at ≥0.9 ml/min flow speed in fluid mainly containing carbon dioxide pressurized at ≥10 MPa pressure and heated at ≥40°C, or the above cast product is held for ≥0.5 ml/min flow speed and for 10-30 min in the fluid mainly containing the water having ≥20 MPa and at ≥150°C temperature to remove the core sand.
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Inventors:
ICHIHASHI KAORU
TOKUMITSU KATSUHISA
TANAKA AKIRA
TOKUMITSU KATSUHISA
TANAKA AKIRA
Application Number:
JP2004375461A
Publication Date:
July 13, 2006
Filing Date:
December 27, 2004
Export Citation:
Assignee:
SHIGA YAMASHITA KK
International Classes:
B22D29/00; F02F1/00
Attorney, Agent or Firm:
Hitoshi Someya
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