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Method for preparing large-size ceramic part through 3D printing
The invention discloses a method for preparing a large-size ceramic part by utilizing 3D printing, which comprises the following steps: weighing ceramic powder, a dispersing agent, an isobutylene-maleic anhydride copolymer, acrylamide and N, N-dimethylformamide; the preparation method comprises the following steps: mixing and ball-milling N, N, N ', N'-tetramethylethylenediamine and ammonium persulfate into ceramic slurry to obtain ceramic slurry, adding N, N, N ', N'-tetramethylethylenediamine and ammonium persulfate into the ceramic slurry, continuously ball-milling, defoaming the obtained slurry, pouring the slurry into a charging barrel, sealing and baking to obtain printing feed, performing screw extrusion printing by adopting direct-writing 3D printing equipment to obtain a wet blank, and performing secondary gelling and drying on the wet blank to obtain the 3D printing material. And sintering the green body to obtain a ceramic blank, and carrying out precision machining and polishing to obtain the large-size ceramic part. According to the method, the printing working stroke is large, the printing feeding binder content is low, the solid content is high, cracking is not prone to occurring in the drying and sintering process, and rapid and safe preparation of large-size ceramic parts can be achieved.
本发明公开了一种利用3D打印制备大尺寸陶瓷零件的方法，该方法包括称取陶瓷粉末、分散剂、异丁烯‑马来酸酐共聚物、丙烯酰胺、N,N’‑亚甲基双丙烯酰胺和水进行混合球磨，得到陶瓷浆料，向陶瓷浆料中加入N,N,N',N'‑四甲基乙二胺和过硫酸铵继续球磨，所得浆料除泡后倒入料筒中密封烘烤，得到打印喂料，采用直写3D打印设备进行螺杆挤出打印，得湿坯，将湿坯二次凝胶、干燥，得到生坯，将生坯烧结，得到陶瓷毛坯，经精密加工和抛光，得到大尺寸陶瓷零件。本发明的方法打印工作行程大，打印喂料粘结剂含量低，固含量高，干燥、烧结过程中不易开裂，可以实现大尺寸陶瓷零部件的快速安全制备。
Method for preparing large-size ceramic part through 3D printing
The invention discloses a method for preparing a large-size ceramic part by utilizing 3D printing, which comprises the following steps: weighing ceramic powder, a dispersing agent, an isobutylene-maleic anhydride copolymer, acrylamide and N, N-dimethylformamide; the preparation method comprises the following steps: mixing and ball-milling N, N, N ', N'-tetramethylethylenediamine and ammonium persulfate into ceramic slurry to obtain ceramic slurry, adding N, N, N ', N'-tetramethylethylenediamine and ammonium persulfate into the ceramic slurry, continuously ball-milling, defoaming the obtained slurry, pouring the slurry into a charging barrel, sealing and baking to obtain printing feed, performing screw extrusion printing by adopting direct-writing 3D printing equipment to obtain a wet blank, and performing secondary gelling and drying on the wet blank to obtain the 3D printing material. And sintering the green body to obtain a ceramic blank, and carrying out precision machining and polishing to obtain the large-size ceramic part. According to the method, the printing working stroke is large, the printing feeding binder content is low, the solid content is high, cracking is not prone to occurring in the drying and sintering process, and rapid and safe preparation of large-size ceramic parts can be achieved.
本发明公开了一种利用3D打印制备大尺寸陶瓷零件的方法，该方法包括称取陶瓷粉末、分散剂、异丁烯‑马来酸酐共聚物、丙烯酰胺、N,N’‑亚甲基双丙烯酰胺和水进行混合球磨，得到陶瓷浆料，向陶瓷浆料中加入N,N,N',N'‑四甲基乙二胺和过硫酸铵继续球磨，所得浆料除泡后倒入料筒中密封烘烤，得到打印喂料，采用直写3D打印设备进行螺杆挤出打印，得湿坯，将湿坯二次凝胶、干燥，得到生坯，将生坯烧结，得到陶瓷毛坯，经精密加工和抛光，得到大尺寸陶瓷零件。本发明的方法打印工作行程大，打印喂料粘结剂含量低，固含量高，干燥、烧结过程中不易开裂，可以实现大尺寸陶瓷零部件的快速安全制备。
Method for preparing large-size ceramic part through 3D printing
利用3D打印制备大尺寸陶瓷零件的方法
YANG XIANFENG (author) / HOU LONGKE (author) / LIU PENG (author)
2025-01-03
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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