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Two-step degreasing method for 3D printing ceramic core biscuit
The invention relates to a two-step degreasing method of a 3D printing ceramic core biscuit, a ceramic core is an alumina-based ceramic core, and the ceramic core is formed by a photocuring 3D printing technology. The degreasing method comprises the following steps: putting an aluminum oxide-based ceramic core biscuit into a tubular furnace, heating to 300-600 DEG C in an argon atmosphere, keepingthe temperature, then cooling a sample along with the furnace, transferring the cooled sample into a muffle furnace, heating to 300-600 DEG C in an air atmosphere, keeping the temperature, and cooling along with the furnace, thereby completing the degreasing process of the photo-cured 3D printed aluminum oxide-based ceramic core biscuit. The decomposition rate of organic matters in the ceramic core biscuit is reduced through a two-step degreasing process of argon firstly and then air, so that the degreased ceramic core is free of cracking and deformation phenomena. The method can be applied to the field of production of photocuring 3D printing aluminum oxide-based ceramic cores.
本发明涉及一种3D打印陶瓷型芯素坯的两步脱脂方法，其中陶瓷型芯为氧化铝基陶瓷型芯，由光固化3D打印技术成型得到。具体脱脂方法如下：将氧化铝基陶瓷型芯素坯置于管式炉中，在氩气气氛中升至300～600℃，并保温然后样品随炉冷却；将冷却后的样品转移至马弗炉中，在空气气氛中升至300～600℃，并保温后随炉冷却，即完成光固化3D打印氧化铝基陶瓷型芯素坯的脱脂过程。本发明通过先氩气、再空气的两步脱脂工艺，降低陶瓷型芯素坯中有机物的分解速率，使得脱脂后的陶瓷型芯无开裂、变形现象。可应用于光固化3D打印氧化铝基陶瓷型芯的生产领域。
Two-step degreasing method for 3D printing ceramic core biscuit
The invention relates to a two-step degreasing method of a 3D printing ceramic core biscuit, a ceramic core is an alumina-based ceramic core, and the ceramic core is formed by a photocuring 3D printing technology. The degreasing method comprises the following steps: putting an aluminum oxide-based ceramic core biscuit into a tubular furnace, heating to 300-600 DEG C in an argon atmosphere, keepingthe temperature, then cooling a sample along with the furnace, transferring the cooled sample into a muffle furnace, heating to 300-600 DEG C in an air atmosphere, keeping the temperature, and cooling along with the furnace, thereby completing the degreasing process of the photo-cured 3D printed aluminum oxide-based ceramic core biscuit. The decomposition rate of organic matters in the ceramic core biscuit is reduced through a two-step degreasing process of argon firstly and then air, so that the degreased ceramic core is free of cracking and deformation phenomena. The method can be applied to the field of production of photocuring 3D printing aluminum oxide-based ceramic cores.
本发明涉及一种3D打印陶瓷型芯素坯的两步脱脂方法，其中陶瓷型芯为氧化铝基陶瓷型芯，由光固化3D打印技术成型得到。具体脱脂方法如下：将氧化铝基陶瓷型芯素坯置于管式炉中，在氩气气氛中升至300～600℃，并保温然后样品随炉冷却；将冷却后的样品转移至马弗炉中，在空气气氛中升至300～600℃，并保温后随炉冷却，即完成光固化3D打印氧化铝基陶瓷型芯素坯的脱脂过程。本发明通过先氩气、再空气的两步脱脂工艺，降低陶瓷型芯素坯中有机物的分解速率，使得脱脂后的陶瓷型芯无开裂、变形现象。可应用于光固化3D打印氧化铝基陶瓷型芯的生产领域。
Two-step degreasing method for 3D printing ceramic core biscuit
一种3D打印陶瓷型芯素坯的两步脱脂方法
LIU YONGSHENG (author) / LI HE (author) / LIU YANSONG (author) / ZENG QINGFENG (author) / DONG NING (author) / WANG JING (author)
2020-06-19
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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