Title:
鋳造物に残存する鋳型の除去方法
Document Type and Number:
Japanese Patent JP6728550
Kind Code:
B2
Abstract:
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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Inventors:
Isamu Ide
Application Number:
JP2016152615A
Publication Date:
July 22, 2020
Filing Date:
August 03, 2016
Export Citation:
Assignee:
Rignite Co., Ltd.
International Classes:
B22D29/00; B22C1/22
Domestic Patent References:
| JP2013040054A | ||||
| JP2006239707A | ||||
| JP62259661A | ||||
| JP8132220A | ||||
| JP63224862A |
Attorney, Agent or Firm:
Atsuo Mori