Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a method for preparing porous alumina ceramic through fused deposition printing, which comprises the following steps: (1) preparing a wire material for FDM: taking alumina powder as a raw material, and matching the alumina powder with a thermoplastic material, a dispersant and a binder; (2) preparing a porous ceramic blank: putting the prepared wire into FDM printing equipment, and printing a porous aluminum oxide ceramic blank; and (3) conducting degreasing and sintering. According to the preparation method, the alumina powder is adopted as a raw material and matched with polyethylene plastic, paraffin and stearic acid, a double-screw internal mixer and an extruder are adopted for wire drawing to prepare a wire material, a ceramic blank with a designed pore structure is prepared through FDM printing equipment, and the porous alumina ceramic is prepared through degreasing and sintering processes. Compared with an existing porous ceramic preparation process, the method has the advantages that forming is fast, the designability of the pore structure is high, and the prepared porous alumina ceramic is uniform in pore structure size and distribution.
本发明公开了一种熔融沉积打印制备多孔氧化铝陶瓷的方法，包括如下步骤：(1)制备FDM用丝材：以氧化铝粉末为原料，配以热塑性材料、分散剂和粘结剂；(2)多孔陶瓷胚体制备：将上述制备的丝材放入FDM打印设备中，打印出多孔氧化铝陶瓷胚体；(3)脱脂和烧结。本发明中，采用氧化铝粉为原料，配以聚乙烯塑料、石蜡和硬脂酸，采用双螺杆密炼机和挤出机进行拉丝，制成丝材，经FDM打印设备，制备出所设计的孔结构的陶瓷胚体，经脱脂和烧结工艺制备出多孔氧化铝陶瓷。与现有多孔陶瓷制备工艺相比，具有成型快，孔结构可设计性高，制备的多孔氧化铝陶瓷孔结构大小均一、分布均匀。
The invention discloses a method for preparing porous alumina ceramic through fused deposition printing, which comprises the following steps: (1) preparing a wire material for FDM: taking alumina powder as a raw material, and matching the alumina powder with a thermoplastic material, a dispersant and a binder; (2) preparing a porous ceramic blank: putting the prepared wire into FDM printing equipment, and printing a porous aluminum oxide ceramic blank; and (3) conducting degreasing and sintering. According to the preparation method, the alumina powder is adopted as a raw material and matched with polyethylene plastic, paraffin and stearic acid, a double-screw internal mixer and an extruder are adopted for wire drawing to prepare a wire material, a ceramic blank with a designed pore structure is prepared through FDM printing equipment, and the porous alumina ceramic is prepared through degreasing and sintering processes. Compared with an existing porous ceramic preparation process, the method has the advantages that forming is fast, the designability of the pore structure is high, and the prepared porous alumina ceramic is uniform in pore structure size and distribution.
本发明公开了一种熔融沉积打印制备多孔氧化铝陶瓷的方法，包括如下步骤：(1)制备FDM用丝材：以氧化铝粉末为原料，配以热塑性材料、分散剂和粘结剂；(2)多孔陶瓷胚体制备：将上述制备的丝材放入FDM打印设备中，打印出多孔氧化铝陶瓷胚体；(3)脱脂和烧结。本发明中，采用氧化铝粉为原料，配以聚乙烯塑料、石蜡和硬脂酸，采用双螺杆密炼机和挤出机进行拉丝，制成丝材，经FDM打印设备，制备出所设计的孔结构的陶瓷胚体，经脱脂和烧结工艺制备出多孔氧化铝陶瓷。与现有多孔陶瓷制备工艺相比，具有成型快，孔结构可设计性高，制备的多孔氧化铝陶瓷孔结构大小均一、分布均匀。
Method for preparing porous alumina ceramic through fused deposition printing
一种熔融沉积打印制备多孔氧化铝陶瓷的方法
MA TAO (Autor:in)
02.11.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
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
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