A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
POWDER FOR MOLDING
PROBLEM TO BE SOLVED: To provide powder for molding from which a molded object can be made without preliminarily heating a powder layer in the process of manufacturing a molded object by a powder bed melt-binding process.SOLUTION: The powder for molding of the present invention is to be used for a powder bed melt-binding process and comprises powder containing a ceramic material and/or metal, and a thermoplastic binder. The thermoplastic binder contains at least one compound selected from the group consisting of petroleum wax, fatty acids, fatty acid esters, fatty acid amides and polyvinyl acetal. The thermoplastic binder has a melting point or a glass transition point in a range of 20°C or higher and 130°C or lower. The powder for molding preferably has a Hausner ratio (a ratio of (tap density)/(bulk density)) of 1.10 or more and 1.40 or less.SELECTED DRAWING: None
【課題】粉末床溶融結合法によって造形物を製造する際、粉末層を予熱しなくても造形物を作成することができる造形用粉末を提供する。【解決手段】本発明の造形用粉末は、粉末床溶融結合法に使用される造形用粉末であって、セラミックス及び／又は金属と、熱可塑性バインダーとを含む粉末からなり、前記熱可塑性バインダーは石油ワックス 、脂肪酸、脂肪酸エステル、脂肪酸アミド、及びポリビニルアセタールから なる群より選ばれた少なくとも１種類を含み、前記熱可塑性バインダーの融点又はガラス転移点が２０℃以上１３０℃以下の範囲にあることを特徴とする。造形用粉末のＨａｕｓｎｅｒ比(タップ密度/かさ密度の比)は１．１０以上１．４０以下であることが好ましい。【選択図】なし
POWDER FOR MOLDING
PROBLEM TO BE SOLVED: To provide powder for molding from which a molded object can be made without preliminarily heating a powder layer in the process of manufacturing a molded object by a powder bed melt-binding process.SOLUTION: The powder for molding of the present invention is to be used for a powder bed melt-binding process and comprises powder containing a ceramic material and/or metal, and a thermoplastic binder. The thermoplastic binder contains at least one compound selected from the group consisting of petroleum wax, fatty acids, fatty acid esters, fatty acid amides and polyvinyl acetal. The thermoplastic binder has a melting point or a glass transition point in a range of 20°C or higher and 130°C or lower. The powder for molding preferably has a Hausner ratio (a ratio of (tap density)/(bulk density)) of 1.10 or more and 1.40 or less.SELECTED DRAWING: None
【課題】粉末床溶融結合法によって造形物を製造する際、粉末層を予熱しなくても造形物を作成することができる造形用粉末を提供する。【解決手段】本発明の造形用粉末は、粉末床溶融結合法に使用される造形用粉末であって、セラミックス及び／又は金属と、熱可塑性バインダーとを含む粉末からなり、前記熱可塑性バインダーは石油ワックス 、脂肪酸、脂肪酸エステル、脂肪酸アミド、及びポリビニルアセタールから なる群より選ばれた少なくとも１種類を含み、前記熱可塑性バインダーの融点又はガラス転移点が２０℃以上１３０℃以下の範囲にあることを特徴とする。造形用粉末のＨａｕｓｎｅｒ比(タップ密度/かさ密度の比)は１．１０以上１．４０以下であることが好ましい。【選択図】なし
POWDER FOR MOLDING
造形用粉末
SHIMAMURA AKIHIRO (author) / HOTTA MIKINORI (author) / KONDO NAOKI (author) / DAIJI TATSUKI (author) / TOKIZONO TAKEO (author) / KAWAHARA AKIHIRO (author) / FUJI YUSUKE (author) / MURAKAMI KENJI (author)
2017-07-27
Patent
Electronic Resource
Japanese
IPC:
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
/
B22F
Verarbeiten von Metallpulver
,
WORKING METALLIC POWDER
/
B33Y
ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
,
Additive (generative) Fertigung, d. h. die Herstellung von dreidimensionalen [3D] Bauteilen durch additive Abscheidung, additive Agglomeration oder additive Schichtung, z. B. durch 3D- Drucken, Stereolithografie oder selektives Lasersintern
/
C04B
Kalk
,
LIME
POWDER MATERIAL FOR USE IN POWDER LAMINATE MOLDING AND MOLDING PRODUCTION METHOD
| European Patent Office | 2020