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Preparation method of easily collapsible high-strength composite ceramic core for hot isostatic pressing
The invention relates to a preparation method of a collapsible high-strength composite ceramic core for hot isostatic pressing. The preparation method comprises the following steps: S1, preparing skeleton ceramic slurry; s2, designing a three-dimensional model of a mold core framework according to a required mold core structure; s3, according to the pre-designed three-dimensional model of the mold core framework, a ceramic framework easy to collapse is formed through a 3D printing technology; s4, preparing matrix ceramic slurry; s5, compounding the ceramic skeleton with a ceramic matrix by using a gel casting process, filling gaps of the ceramic skeleton with the matrix ceramic slurry prepared in the step S4, and performing gel shaping to obtain a ceramic core green body; and S6, drying, degreasing, sintering and post-processing to obtain the required ceramic core. According to the ceramic core prepared by the method, the ceramic framework provides support for the ceramic matrix, the mechanical property is good, and the ceramic core adapts to a high-temperature and high-pressure working environment of a hot isostatic pressing process; when the mold core is corroded and depoled, the ceramic framework can be easily removed, the ceramic matrix automatically falls off after losing support, and the depoling performance is excellent.
本发明涉及一种热等静压用易溃散高强度复合陶瓷型芯的制备方法，包括以下步骤：S1：配置骨架陶瓷浆料；S2：根据所需型芯结构，设计型芯骨架三维模型；S3：依据预先设计的所述型芯骨架三维模型，利用3D打印工艺成形出易溃散的陶瓷骨架；S4：配置基体陶瓷浆料；S5：利用凝胶注模工艺将所述陶瓷骨架与陶瓷基体复合，用步骤S4中配置得到的所述基体陶瓷浆料填满所述陶瓷骨架空隙，凝胶定型得到陶瓷型芯生坯；S6：干燥脱脂烧结后处理得到所需陶瓷型芯。通过本方法制备的陶瓷型芯，陶瓷骨架对陶瓷基体提供支撑，力学性能良好，适应热等静压工艺高温高压的工作环境；型芯腐蚀脱芯时，陶瓷骨架能够轻易脱除，陶瓷基体失去支撑后自行脱落，脱芯性能优异。
Preparation method of easily collapsible high-strength composite ceramic core for hot isostatic pressing
The invention relates to a preparation method of a collapsible high-strength composite ceramic core for hot isostatic pressing. The preparation method comprises the following steps: S1, preparing skeleton ceramic slurry; s2, designing a three-dimensional model of a mold core framework according to a required mold core structure; s3, according to the pre-designed three-dimensional model of the mold core framework, a ceramic framework easy to collapse is formed through a 3D printing technology; s4, preparing matrix ceramic slurry; s5, compounding the ceramic skeleton with a ceramic matrix by using a gel casting process, filling gaps of the ceramic skeleton with the matrix ceramic slurry prepared in the step S4, and performing gel shaping to obtain a ceramic core green body; and S6, drying, degreasing, sintering and post-processing to obtain the required ceramic core. According to the ceramic core prepared by the method, the ceramic framework provides support for the ceramic matrix, the mechanical property is good, and the ceramic core adapts to a high-temperature and high-pressure working environment of a hot isostatic pressing process; when the mold core is corroded and depoled, the ceramic framework can be easily removed, the ceramic matrix automatically falls off after losing support, and the depoling performance is excellent.
本发明涉及一种热等静压用易溃散高强度复合陶瓷型芯的制备方法，包括以下步骤：S1：配置骨架陶瓷浆料；S2：根据所需型芯结构，设计型芯骨架三维模型；S3：依据预先设计的所述型芯骨架三维模型，利用3D打印工艺成形出易溃散的陶瓷骨架；S4：配置基体陶瓷浆料；S5：利用凝胶注模工艺将所述陶瓷骨架与陶瓷基体复合，用步骤S4中配置得到的所述基体陶瓷浆料填满所述陶瓷骨架空隙，凝胶定型得到陶瓷型芯生坯；S6：干燥脱脂烧结后处理得到所需陶瓷型芯。通过本方法制备的陶瓷型芯，陶瓷骨架对陶瓷基体提供支撑，力学性能良好，适应热等静压工艺高温高压的工作环境；型芯腐蚀脱芯时，陶瓷骨架能够轻易脱除，陶瓷基体失去支撑后自行脱落，脱芯性能优异。
Preparation method of easily collapsible high-strength composite ceramic core for hot isostatic pressing
一种热等静压用易溃散高强度复合陶瓷型芯的制备方法
CAI CHAO (author) / LU JIAHAO (author) / CAI JILI (author) / SHI YUSHENG (author)
2024-08-06
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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