GRANULAR MATERIAL, GRANULAR MATERIAL MANUFACTURING METHOD, THREE-DIMENSIONAL LAMINATED AND SHAPED MOLD MANUFACTURING APPARATUS, AND THREE-DIMENSIONAL LAMINATED AND SHAPED MOLD MANUFACTURING METHOD

• Main Authors: NAGAI, Yasuhiro, OKANE, Toshimitsu, TAKESHITA, Kosuke
• Format: Patent
• Language: English
• Published: 26.04.2018
• Subjects: 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; CASTING; CHEMISTRY; COMPOSITIONS BASED THEREON; FOUNDRY MOULDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; POWDER METALLURGY; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The present invention is a granular material that can be well recoated regardless of the type of the granular material, and enables a refractory aggregate in an unprinted portion to be used without any regeneration process, in the manufacture of a three-dimensional laminated and shaped mold. This granular material is a granular material for use in three-dimensional laminated mold shaping, and obtained by adding a material that causes a hydration reaction having a moisture absorbing function and generates a catalytic effect to a coating material mixed with or coated with an acid as a catalyst which activates and hardens an organic binder for binding the granular material.