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1. (WO2018003832) HYDRAULIC COMPOSITION FOR ADDITIVE MANUFACTURING DEVICE, AND PROCESS FOR PRODUCING CASTING MOLD

Pub. No.:    WO/2018/003832    International Application No.:    PCT/JP2017/023690
Publication Date: Fri Jan 05 00:59:59 CET 2018 International Filing Date: Thu Jun 29 01:59:59 CEST 2017
IPC: B22C 1/10
B22C 1/18
B22C 9/02
B28B 1/30
C04B 22/10
C04B 28/06
Applicants: TAIHEIYO CEMENT CORPORATION
太平洋セメント株式会社
Inventors: OHGI Yoshifumi
扇 嘉史
OGAWA Yoji
小川 洋二
TANIMURA Makoto
谷村 充
TOBA Atsuya
戸羽 篤也
SUZUKI Hayato
鈴木 逸人
Title: HYDRAULIC COMPOSITION FOR ADDITIVE MANUFACTURING DEVICE, AND PROCESS FOR PRODUCING CASTING MOLD
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.