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Method for preparing cordierite ceramic with ultralow thermal expansion coefficient through 3D printing
The invention relates to a method for preparing cordierite ceramic with an ultralow thermal expansion coefficient through 3D printing. The method comprises the following steps: (1) adding dried cordierite ceramic powder, a polymer skeleton, a support binder, a surfactant and other additives into a preheated roller type mixing mill, and mixing to obtain cordierite ceramic slurry; (2) cooling, granulating and screening the cordierite ceramic slurry to obtain a mixture for 3D printing; (3) the temperature of the whole printing space is controlled, the designed cordierite ceramic structure is formed through 3D printing, and a cordierite ceramic green body is obtained; (4) cooling the green body to room temperature, putting the green body into a solvent heated in a constant-temperature water bath for preliminary degreasing, and taking out and drying the green body when the quality of the green body basically does not change; and (5) carrying out thermal degreasing, pre-sintering and hot isostatic pressing treatment on the dried green body to obtain the cordierite ceramic with the ultralow thermal expansion coefficient.
本发明涉及一种3D打印制备超低热膨胀系数堇青石陶瓷的方法。所述方法包括：(1)将烘干后的堇青石陶瓷粉体、高分子骨架、支撑粘结剂、表面活性剂和其他添加剂加入到预热后的辊式混炼机中进行混合，得到堇青石陶瓷浆料；(2)将堇青石陶瓷浆料冷却、造粒、筛分，得到3D打印用混合料；(3)控制整个打印空间的温度，3D打印成型设计好的堇青石陶瓷结构，得到堇青石陶瓷生坯；(4)将生坯冷却至室温，放入恒温水浴加热的溶剂中进行初步脱脂，待生坯质量基本不发生变化，取出生坯烘干；(5)将烘干后的生坯进行热脱脂、预烧结和热等静压处理，得到所述超低热膨胀系数堇青石陶瓷。
Method for preparing cordierite ceramic with ultralow thermal expansion coefficient through 3D printing
The invention relates to a method for preparing cordierite ceramic with an ultralow thermal expansion coefficient through 3D printing. The method comprises the following steps: (1) adding dried cordierite ceramic powder, a polymer skeleton, a support binder, a surfactant and other additives into a preheated roller type mixing mill, and mixing to obtain cordierite ceramic slurry; (2) cooling, granulating and screening the cordierite ceramic slurry to obtain a mixture for 3D printing; (3) the temperature of the whole printing space is controlled, the designed cordierite ceramic structure is formed through 3D printing, and a cordierite ceramic green body is obtained; (4) cooling the green body to room temperature, putting the green body into a solvent heated in a constant-temperature water bath for preliminary degreasing, and taking out and drying the green body when the quality of the green body basically does not change; and (5) carrying out thermal degreasing, pre-sintering and hot isostatic pressing treatment on the dried green body to obtain the cordierite ceramic with the ultralow thermal expansion coefficient.
本发明涉及一种3D打印制备超低热膨胀系数堇青石陶瓷的方法。所述方法包括：(1)将烘干后的堇青石陶瓷粉体、高分子骨架、支撑粘结剂、表面活性剂和其他添加剂加入到预热后的辊式混炼机中进行混合，得到堇青石陶瓷浆料；(2)将堇青石陶瓷浆料冷却、造粒、筛分，得到3D打印用混合料；(3)控制整个打印空间的温度，3D打印成型设计好的堇青石陶瓷结构，得到堇青石陶瓷生坯；(4)将生坯冷却至室温，放入恒温水浴加热的溶剂中进行初步脱脂，待生坯质量基本不发生变化，取出生坯烘干；(5)将烘干后的生坯进行热脱脂、预烧结和热等静压处理，得到所述超低热膨胀系数堇青石陶瓷。
Method for preparing cordierite ceramic with ultralow thermal expansion coefficient through 3D printing
一种3D打印制备超低热膨胀系数堇青石陶瓷的方法
ZHANG JIAN (author) / JI HAOHAO (author) / WANG JUNPING (author) / LIU WENLONG (author) / GE YE (author) / MAO XIAOJIAN (author) / WANG SHIWEI (author)
2024-08-09
Patent
Electronic Resource
Chinese
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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