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MIXTURE POWDER FOR THREE-DIMENSIONAL MOLDING AND THREE-DIMENSIONAL MOLDED ARTICLE
PROBLEM TO BE SOLVED: To provide a mixture powder for three-dimensional molding, which suppresses occurrence of a defect in a part of a three-dimensional molded article.SOLUTION: A mixture powder 10 for three-dimensional molding contains an inorganic powder of hydrophilic particles having an average particle diameter of 15 μm or less, by 0.01 wt.% or more and 5 wt.% or less with respect to the mixture powder 10 for three-dimensional molding. Since cohesive force of α-hemihydrate gypsum is decreased, the obtained mixture powder 10 for three-dimensional molding has a compaction degree of 25% or less and higher fluidity and thereby, the powder can be uniformly and horizontally supplied by a roller 29 to a thickness equal to that of a single layer of a layered solidified product 32 in a molding tank 31 of a three-dimensional molding apparatus 12. This prevents occurrence of a defect in a part of a three-dimensional molded article 30 to be molded.SELECTED DRAWING: Figure 5
【課題】立体造形物の一部に欠陥が発生することを抑制する立体造形用混合粉体を提供する。【解決手段】立体造形用混合粉体１０によれば、無機粉体は平均粒径１５μｍ以下の親水性粒子であり、立体造形用混合粉体１０に対して０．０１重量％以上５重量％以下の範囲内で含有される。このため、α半水石膏の凝集力が低下され、立体造形用混合粉体１０は圧縮度が２５％以下となりその流動性が高められることから、立体造形物成形装置１２の造形槽３１内において層状固化物３２の一層分の厚みと等しく水平に均一にローラ２９により充填される。これにより、成形される立体造形物３０の一部に欠陥が発生することを抑制することができる。【選択図】図５
MIXTURE POWDER FOR THREE-DIMENSIONAL MOLDING AND THREE-DIMENSIONAL MOLDED ARTICLE
PROBLEM TO BE SOLVED: To provide a mixture powder for three-dimensional molding, which suppresses occurrence of a defect in a part of a three-dimensional molded article.SOLUTION: A mixture powder 10 for three-dimensional molding contains an inorganic powder of hydrophilic particles having an average particle diameter of 15 μm or less, by 0.01 wt.% or more and 5 wt.% or less with respect to the mixture powder 10 for three-dimensional molding. Since cohesive force of α-hemihydrate gypsum is decreased, the obtained mixture powder 10 for three-dimensional molding has a compaction degree of 25% or less and higher fluidity and thereby, the powder can be uniformly and horizontally supplied by a roller 29 to a thickness equal to that of a single layer of a layered solidified product 32 in a molding tank 31 of a three-dimensional molding apparatus 12. This prevents occurrence of a defect in a part of a three-dimensional molded article 30 to be molded.SELECTED DRAWING: Figure 5
【課題】立体造形物の一部に欠陥が発生することを抑制する立体造形用混合粉体を提供する。【解決手段】立体造形用混合粉体１０によれば、無機粉体は平均粒径１５μｍ以下の親水性粒子であり、立体造形用混合粉体１０に対して０．０１重量％以上５重量％以下の範囲内で含有される。このため、α半水石膏の凝集力が低下され、立体造形用混合粉体１０は圧縮度が２５％以下となりその流動性が高められることから、立体造形物成形装置１２の造形槽３１内において層状固化物３２の一層分の厚みと等しく水平に均一にローラ２９により充填される。これにより、成形される立体造形物３０の一部に欠陥が発生することを抑制することができる。【選択図】図５
MIXTURE POWDER FOR THREE-DIMENSIONAL MOLDING AND THREE-DIMENSIONAL MOLDED ARTICLE
立体造形用混合粉体および立体造形物
YOSHIKAWA HIROSHI (author)
2016-04-11
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
,
Verbindungen der Metalle Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium oder der Seltenen Erden
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