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Title:
HYDRAULIC COMPOSITION FOR ADDITIVE MANUFACTURING DEVICE, AND PROCESS FOR PRODUCING CASTING MOLD
Document Type and Number:
WIPO Patent Application WO/2018/003832
Kind Code:
A1
Abstract:
The present invention has solved the problems of conventional shaping materials, and provides a hydraulic composition for additive manufacturing devices which has high strength-developing properties, in particular, early-stage strength-developing properties, and is less apt to cause gas defects or defects due to graphite spheroidizing failures. Specifically, the hydraulic composition for additive manufacturing devices of the present invention at least contains calcium aluminate. It is preferable that the hydraulic composition contain 0.5-10 parts by mass of gypsum per 100 parts by mass of the calcium aluminate.

Inventors:
OHGI Yoshifumi (Central Research Laboratory 4-2, Osaku 2-chome, Sakura-sh, Chiba 55, 〒2858655, JP)
OGAWA Yoji (Central Research Laboratory 4-2, Osaku 2-chome, Sakura-sh, Chiba 55, 〒2858655, JP)
TANIMURA Makoto (Central Research Laboratory 4-2, Osaku 2-chome, Sakura-sh, Chiba 55, 〒2858655, JP)
TOBA Atsuya (Industrial Technology DepartmentIndustrial Research Institute,Kita 19-jo Nishi 11-chome,Kita-ku,Sapporo-sh, Hokkaido 19, 〒0600819, JP)
SUZUKI Hayato (Industrial Technology DepartmentIndustrial Research Institute,Kita 19-jo Nishi 11-chome,Kita-ku,Sapporo-sh, Hokkaido 19, 〒0600819, JP)
Application Number:
JP2017/023690
Publication Date:
January 04, 2018
Filing Date:
June 28, 2017
Export Citation:
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Assignee:
TAIHEIYO CEMENT CORPORATION (3-5 Daiba 2-chome, Minato-ku Tokyo, 78, 〒1358578, JP)
International Classes:
B22C1/10; B22C1/18; B22C9/02; B28B1/30; C04B22/10; C04B28/06
Domestic Patent References:
2013-04-18
2014-11-20
Foreign References:
JP5867938B12016-02-24
JP5867939B12016-02-24
JP2011051010A2011-03-17
JPS5884637A1983-05-20
Other References:
REN'ICHI KONDO: "Alumina Cements no Kagaku", CONCRETE JOURNAL, vol. 6, no. 12, December 1968 (1968-12-01), pages 4 - 8
MAIER, A.-K. ET AL.: "Three-dimensional printing of flash-setting calcium aluminate cement", J. MATER. SCI., vol. 46, 2011, pages 2947 - 2954, XP019883209
TAKAYUKI HIGUCHI ET AL.: "Effect of Sodium Aluminate on Initial Hydration of Amorphous Calcium Aluminate", J. SOC. INORG. MATER., vol. 11, 2004, pages 92 - 97
KOJI NAKAGAWA ET AL.: "Influences of Glass Contents and Chemical Composition on the very early Hydration of Amorphous Calcium Aluminate", GYPSUM & LIME, vol. 231, 1991, pages 10 - 15
MITSURU OCHIAI: "Fumed Silica", JOURNAL OF AEROSOL RESEARCH, vol. 5, no. 1, 1990, pages 32 - 43
SHAKOR, P. ET AL.: "Modified 3D printed powder to cement-based material and mechanical properties of cement scaffold used in 3D printing", CONSTRUCTION AND BUILDING MATERIALS, vol. 138, 20 February 2017 (2017-02-20), pages 398 - 409, XP055450710
Attorney, Agent or Firm:
ARAI Norihiko (LEAD INTERNATIONAL PATENT OFFICE, Avisuta Ichigaya Building 5F 2-11, Kudanminami 4-chome, Chiyoda-k, Tokyo 74, 〒1020074, JP)
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