Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Argon atmosphere sintering method of 3D printing ceramic core
The invention relates to an argon atmosphere sintering method of a 3D printing ceramic core, and the ceramic core is an alumina-based ceramic core and is formed by a photocuring 3D printing technology. The method comprises flatly laying mixed alumina powder obtained by mixing alumina powder with different particle sizes in a flat-bottom crucible, putting the alumina-based ceramic core biscuit intoa flat-bottom crucible thereby completely covering the alumina-based ceramic core biscuit with the mixed alumina powder, putting the alumina-based ceramic core biscuit into a muffle furnace, sintering in an air atmosphere, transferring into a tubular furnace, and cooling the ceramic core along with the furnace, thereby completing the sintering process of the 3D printing ceramic core. The aluminumoxide powder formed by mixing aluminum oxide powder with different particle sizes plays a role in supporting the ceramic core in the primary sintering process, then secondary sintering strengtheningis conducted in the argon atmosphere, and the ceramic core which is free of deformation and cracks and has certain strength can be obtained.
本发明涉及一种3D打印陶瓷型芯的氩气气氛烧结方法，其中陶瓷型芯为氧化铝基陶瓷型芯，且由光固化3D打印技术成型得到。将由不同粒径的氧化铝粉混合得到的混合氧化铝粉平铺于平底坩埚中；将氧化铝基陶瓷型芯素坯置于平底坩埚中，且被混合氧化铝粉完全覆盖；氧化铝基陶瓷型芯素坯置于马弗炉中，在空气气氛中烧结，再转移至管式炉中，随后陶瓷型芯随炉冷却，即完成3D打印陶瓷型芯的烧结过程。本发明由不同粒径混合组成的氧化铝粉在一次烧结过程中起到支撑陶瓷型芯的作用，然后在氩气气氛中进行二次烧结强化，可得到无变形、无裂纹、且具有一定强度的陶瓷型芯。
Argon atmosphere sintering method of 3D printing ceramic core
The invention relates to an argon atmosphere sintering method of a 3D printing ceramic core, and the ceramic core is an alumina-based ceramic core and is formed by a photocuring 3D printing technology. The method comprises flatly laying mixed alumina powder obtained by mixing alumina powder with different particle sizes in a flat-bottom crucible, putting the alumina-based ceramic core biscuit intoa flat-bottom crucible thereby completely covering the alumina-based ceramic core biscuit with the mixed alumina powder, putting the alumina-based ceramic core biscuit into a muffle furnace, sintering in an air atmosphere, transferring into a tubular furnace, and cooling the ceramic core along with the furnace, thereby completing the sintering process of the 3D printing ceramic core. The aluminumoxide powder formed by mixing aluminum oxide powder with different particle sizes plays a role in supporting the ceramic core in the primary sintering process, then secondary sintering strengtheningis conducted in the argon atmosphere, and the ceramic core which is free of deformation and cracks and has certain strength can be obtained.
本发明涉及一种3D打印陶瓷型芯的氩气气氛烧结方法，其中陶瓷型芯为氧化铝基陶瓷型芯，且由光固化3D打印技术成型得到。将由不同粒径的氧化铝粉混合得到的混合氧化铝粉平铺于平底坩埚中；将氧化铝基陶瓷型芯素坯置于平底坩埚中，且被混合氧化铝粉完全覆盖；氧化铝基陶瓷型芯素坯置于马弗炉中，在空气气氛中烧结，再转移至管式炉中，随后陶瓷型芯随炉冷却，即完成3D打印陶瓷型芯的烧结过程。本发明由不同粒径混合组成的氧化铝粉在一次烧结过程中起到支撑陶瓷型芯的作用，然后在氩气气氛中进行二次烧结强化，可得到无变形、无裂纹、且具有一定强度的陶瓷型芯。
Argon atmosphere sintering method of 3D printing ceramic core
一种3D打印陶瓷型芯的氩气气氛烧结方法
LIU YONGSHENG (Autor:in) / LI HE (Autor:in) / LIU YANSONG (Autor:in) / ZENG QINGFENG (Autor:in) / DONG NING (Autor:in) / WANG JING (Autor:in)
19.06.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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