Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Photocuring 3D printing low-sintering-shrinkage ceramic core and preparation method thereof
The invention relates to a photocuring 3D printing low-sintering-shrinkage-rate ceramic core and a preparation method thereof.The preparation method of the photocuring 3D printing low-sintering-shrinkage-rate ceramic core comprises the following steps that mixed powder and photocuring resin prepolymer liquid are prepared into photocuring 3D printing ceramic core slurry; wherein the mixed powder comprises skeleton powder, filler and a shrinkage compensation agent; wherein the shrinkage compensation agent is one or two of Al powder and Cr powder; the photocuring 3D printing ceramic core slurry is subjected to photocuring 3D printing treatment, and a photocuring 3D printing ceramic core biscuit is obtained; the photocuring 3D printing ceramic core biscuit is sequentially subjected to degreasing treatment and sintering treatment, and the photocuring 3D printing low-sintering-shrinkage-rate ceramic core is obtained; wherein the shrinkage compensation agent can be gradually and completely oxidized into oxides in the degreasing and sintering treatment processes. The method is mainly used for reducing the sintering shrinkage rate of the ceramic core in the preparation process so as to improve the dimensional precision of the ceramic core.
本发明是关于一种光固化3D打印低烧结收缩率陶瓷型芯及其制备方法，其中，所述光固化3D打印低烧结收缩率陶瓷型芯的制备方法，包括如下步骤：将混合粉体和光固化树脂预聚液配制成光固化3D打印陶瓷型芯浆料；其中，混合粉体包括骨架粉体、填料和收缩补偿剂；其中，收缩补偿剂为Al粉、Cr粉中的一种或两种；对光固化3D打印陶瓷型芯浆料进行光固化3D打印处理，得到光固化3D打印陶瓷型芯素坯；对光固化3D打印陶瓷型芯素坯依次进行脱脂处理、烧结处理，得到光固化3D打印低烧结收缩率陶瓷型芯；其中，收缩补偿剂在所述脱脂、烧结处理的过程中会逐渐全部氧化成氧化物。本发明主要用于降低陶瓷型芯在制备过程中的烧结收缩率，以提高陶瓷型芯的尺寸精度。
Photocuring 3D printing low-sintering-shrinkage ceramic core and preparation method thereof
The invention relates to a photocuring 3D printing low-sintering-shrinkage-rate ceramic core and a preparation method thereof.The preparation method of the photocuring 3D printing low-sintering-shrinkage-rate ceramic core comprises the following steps that mixed powder and photocuring resin prepolymer liquid are prepared into photocuring 3D printing ceramic core slurry; wherein the mixed powder comprises skeleton powder, filler and a shrinkage compensation agent; wherein the shrinkage compensation agent is one or two of Al powder and Cr powder; the photocuring 3D printing ceramic core slurry is subjected to photocuring 3D printing treatment, and a photocuring 3D printing ceramic core biscuit is obtained; the photocuring 3D printing ceramic core biscuit is sequentially subjected to degreasing treatment and sintering treatment, and the photocuring 3D printing low-sintering-shrinkage-rate ceramic core is obtained; wherein the shrinkage compensation agent can be gradually and completely oxidized into oxides in the degreasing and sintering treatment processes. The method is mainly used for reducing the sintering shrinkage rate of the ceramic core in the preparation process so as to improve the dimensional precision of the ceramic core.
本发明是关于一种光固化3D打印低烧结收缩率陶瓷型芯及其制备方法，其中，所述光固化3D打印低烧结收缩率陶瓷型芯的制备方法，包括如下步骤：将混合粉体和光固化树脂预聚液配制成光固化3D打印陶瓷型芯浆料；其中，混合粉体包括骨架粉体、填料和收缩补偿剂；其中，收缩补偿剂为Al粉、Cr粉中的一种或两种；对光固化3D打印陶瓷型芯浆料进行光固化3D打印处理，得到光固化3D打印陶瓷型芯素坯；对光固化3D打印陶瓷型芯素坯依次进行脱脂处理、烧结处理，得到光固化3D打印低烧结收缩率陶瓷型芯；其中，收缩补偿剂在所述脱脂、烧结处理的过程中会逐渐全部氧化成氧化物。本发明主要用于降低陶瓷型芯在制备过程中的烧结收缩率，以提高陶瓷型芯的尺寸精度。
Photocuring 3D printing low-sintering-shrinkage ceramic core and preparation method thereof
一种光固化3D打印低烧结收缩率陶瓷型芯及其制备方法
LIANG JINGJING (Autor:in) / LI QIAOLEI (Autor:in) / LI JINGUO (Autor:in) / ZHOU YIZHOU (Autor:in) / SUN XIAOFENG (Autor:in)
08.03.2022
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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