Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Photocuring 3D printing high-precision ceramic core and preparation method thereof
The invention relates to a photocuring 3D printing high-precision ceramic core and a preparation method thereof, and relates to the technical field of additive manufacturing ceramic materials. The preparation method of the photocuring 3D printing ceramic core comprises the following steps: preparing a photocuring ceramic slurry from ceramic mixed powder, photocuring resin, a dispersing agent and an initiator; wherein the ceramic mixed powder is prepared from the following components in percentage by mass: 60 to 90 weight percent of framework powder, 5 to 25 weight percent of filler and 5 to 15 weight percent of shrinkage compensation agent; wherein the shrinkage compensation agent is selected from one or more of kyanite, sillimanite and andalusite; the photocuring ceramic slurry is subjected to photocuring 3D printing treatment, and a photocuring ceramic core biscuit is obtained; and sequentially carrying out degreasing treatment and sintering treatment on the photocuring ceramic core biscuit to obtain the photocuring 3D printing ceramic core. According to the invention, the bending strength of the ceramic core can be improved while the small sintering shrinkage rate of the ceramic core is ensured to improve the dimensional precision of the ceramic core.
本发明关于一种光固化3D打印高精度陶瓷型芯及其制备方法，涉及增材制造陶瓷材料技术领域。其中，所述光固化3D打印陶瓷型芯的制备方法，包括如下步骤：将陶瓷混合粉体、光固化树脂、分散剂及引发剂配制成光固化陶瓷浆料；其中，以质量百分数计，陶瓷混合粉体包括60‑90wt％的骨架粉体、5‑25wt％的填料、5‑15wt％的收缩补偿剂；其中，收缩补偿剂选用蓝晶石、硅线石、红柱石中的一种或多种；对光固化陶瓷浆料进行光固化3D打印处理，得到光固化陶瓷型芯素坯；对光固化陶瓷型芯素坯依次进行脱脂处理、烧结处理，得到光固化3D打印陶瓷型芯。本发明在确保陶瓷型芯较小烧结收缩率以提高陶瓷型芯的尺寸精度的同时，还能提高陶瓷型芯的抗弯强度。
Photocuring 3D printing high-precision ceramic core and preparation method thereof
The invention relates to a photocuring 3D printing high-precision ceramic core and a preparation method thereof, and relates to the technical field of additive manufacturing ceramic materials. The preparation method of the photocuring 3D printing ceramic core comprises the following steps: preparing a photocuring ceramic slurry from ceramic mixed powder, photocuring resin, a dispersing agent and an initiator; wherein the ceramic mixed powder is prepared from the following components in percentage by mass: 60 to 90 weight percent of framework powder, 5 to 25 weight percent of filler and 5 to 15 weight percent of shrinkage compensation agent; wherein the shrinkage compensation agent is selected from one or more of kyanite, sillimanite and andalusite; the photocuring ceramic slurry is subjected to photocuring 3D printing treatment, and a photocuring ceramic core biscuit is obtained; and sequentially carrying out degreasing treatment and sintering treatment on the photocuring ceramic core biscuit to obtain the photocuring 3D printing ceramic core. According to the invention, the bending strength of the ceramic core can be improved while the small sintering shrinkage rate of the ceramic core is ensured to improve the dimensional precision of the ceramic core.
本发明关于一种光固化3D打印高精度陶瓷型芯及其制备方法，涉及增材制造陶瓷材料技术领域。其中，所述光固化3D打印陶瓷型芯的制备方法，包括如下步骤：将陶瓷混合粉体、光固化树脂、分散剂及引发剂配制成光固化陶瓷浆料；其中，以质量百分数计，陶瓷混合粉体包括60‑90wt％的骨架粉体、5‑25wt％的填料、5‑15wt％的收缩补偿剂；其中，收缩补偿剂选用蓝晶石、硅线石、红柱石中的一种或多种；对光固化陶瓷浆料进行光固化3D打印处理，得到光固化陶瓷型芯素坯；对光固化陶瓷型芯素坯依次进行脱脂处理、烧结处理，得到光固化3D打印陶瓷型芯。本发明在确保陶瓷型芯较小烧结收缩率以提高陶瓷型芯的尺寸精度的同时，还能提高陶瓷型芯的抗弯强度。
Photocuring 3D printing high-precision ceramic core and preparation method thereof
一种光固化3D打印高精度陶瓷型芯及其制备方法
LI QIAOLEI (Autor:in) / LIU SHENGQI (Autor:in) / LI JINGUO (Autor:in) / LIANG JINGJING (Autor:in) / ZHOU YIZHOU (Autor:in) / SUN XIAOFENG (Autor:in)
06.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
B22C
FOUNDRY MOULDING
,
Gießformen
/
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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