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Title:
HYDRAULIC COMPOSITION FOR ADDITIVE MANUFACTURING DEVICE, AND PRODUCTION METHOD FOR CASTING MOLD
Document Type and Number:
WIPO Patent Application WO/2020/122109
Kind Code:
A1
Abstract:
The present invention is a hydraulic composition for an additive manufacturing device. The hydraulic composition includes at least sand, an inorganic bonding material, and polyvinyl alcohol and satisfies conditions (1) and (2). (1) The mass ratio of sand/(inorganic bonding material+polyvinyl alcohol) is 4–12. (2) The mass ratio of polyvinyl alcohol/inorganic bonding material is 0.1–0.4. The hydraulic composition for an additive manufacturing device also preferably satisfies condition (3). (3) The mass ratio of water/(inorganic bonding material+polyvinyl alcohol) is 0.30–1.30.

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Inventors:
OHGI YOSHIFUMI (JP)
ISHII YUSUKE (JP)
Application Number:
PCT/JP2019/048448
Publication Date:
June 18, 2020
Filing Date:
December 11, 2019
Export Citation:
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Assignee:
TAIHEIYO CEMENT CORP (JP)
International Classes:
C04B28/06; B28B1/30; C04B7/32; C04B7/345; C04B14/30; C04B24/26
Domestic Patent References:
WO2013054833A12013-04-18
Foreign References:
CN106799461A2017-06-06
JP2018193295A2018-12-06
JP2018154511A2018-10-04
JP2018002587A2018-01-11
Other References:
IIE, HIROSHI ET AL.: "Effects of compounding agent on making high thermal resistant die using inkjet-type 3D printer", JOURNAL OF THE REPORTS OF THE JAPAN FOUNDRY ENGINEERING SOCIETY MEETING 163, October 2013 (2013-10-01), XP055720150
Attorney, Agent or Firm:
ARAI Norihiko (JP)
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