POWDER FOR LAMINATION MOLDING, SLURRY FOR LAMINATION MOLDING, THREE-DIMENSIONAL LAMINATION MOLDED BODY, SINTERED COMPACT, METHOD FOR PRODUCING SLURRY FOR LAMINATION MOLDING, LAMINATION MOLDING METHOD AND SINTERING METHOD

To provide a powder for lamination molding in which, even in the case the concentration of organic powders in slurry for lamination molding is high, the slurry for lamination molding can have satisfactory installability and thixotropic properties, further, a three-dimensional lamination molded body...

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Bibliographische Detailangaben
Hauptverfasser:	TSUBOTA SHUHO, OGUMA HIDETAKA, BONO TAKUMI, TANIGAWA HIDETSUGU
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ADDITIVE MANUFACTURING TECHNOLOGY ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY PERFORMING OPERATIONS REFRACTORIES SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SLAG TRANSPORTING TREATMENT OF NATURAL STONE WORKING CEMENT, CLAY, OR STONE WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	To provide a powder for lamination molding in which, even in the case the concentration of organic powders in slurry for lamination molding is high, the slurry for lamination molding can have satisfactory installability and thixotropic properties, further, a three-dimensional lamination molded body with a shape more complicated than that in the case of being molded by injection, and further slurry for lamination molding, a method for producing slurry for lamination, a lamination molding method and a sintering method capable of forming a sintered compact having a low shrinkage percentage after sintering treatment.SOLUTION: A powder 10 for lamination molding comprises coarse-grained inorganic powders 1, and fine inorganic powders 2 having an average grain size smaller than the coarse-grained inorganic powders 1, and a grain size volume ratio between the coarse-grained inorganic powders 1 and the fine inorganic powders 2 is 28.0 to 53.0.SELECTED DRAWING: Figure 1 【課題】積層造形用スラリー中の無機粉末の濃度が高い場合であっても、積層造形用スラリーが良好な敷設性、チクソトロピー性を有することができる積層造形用粉末を提供し、また、射出で成型した場合よりも複雑な形状の３次元積層造形体及び焼結処理後の収縮率が低い焼結体を形成することができる、積層造形用スラリー、積層造形用スラリーの製造方法、積層造形方法、焼結方法を提供する。【解決手段】積層造形用粉末１０は、粗粒無機粉末１と、平均粒径が粗粒無機粉末１より小さい微細無機粉末２と、からなり、粗粒無機粉末１と微細無機粉末２との粒径体積比率が２８．０〜５３．０である。【選択図】図１