METHOD FOR REMOVING MOLD REMAINING IN CAST PRODUCT

Japanese Patent JP2018020344

A

PROBLEM TO BE SOLVED: To provide a method for removing a mold remaining in a cast product capable of facilitating collapse of the mold remaining in the cast to be removed.SOLUTION: The invention relates to a method for removing a mold remaining in a cast product when the cast product, which is obtained by molding using a mold formed by binding molding sand with organic binder, is removed from the mold. The method for removing a mold remaining in the cast product comprises: carbonizing as well as activating the organic binder of the mold attached to the cast product; and then removing the remaining mold attached to the cast product. Thus, carbonization makes the organic binder become carbide with a porous structure, and activation makes the carbide develop porous micro structure and become very brittle so as to facilitate collapsing the remaining mold attached to the cast product to be easily removed from the cast product.SELECTED DRAWING: None

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IDE ISAMU

JP2016152615A

February 08, 2018

August 03, 2016

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LIGNYTE CO LTD

B22D29/00; B22C1/22

JP2013040054A	2013-02-28
JP2006239707A	2006-09-14
JPS62259661A	1987-11-12
JPH08132220A	1996-05-28
JPS63224862A	1988-09-19

Atsuo Mori

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