行星式球磨法制备粒径可控的陶瓷型芯用CaO粉末  

Preparation of ceramic core CaO powder with controllable particle size using planetary ball milling method

作　　者：张进 胡华鑫 吴国清[3,4] 季昕阳 刘双齐 丁文钊 任国成 丁修鹏[1] 赵忠魁 ZHANG Jin;Hu Huaxin;WU Guoqing;JI Xinyang;LIU Shuangqi;DING Wenzhao;REN Guocheng;DING Xiupeng;ZHAO Zhongkui(School of Materials Science and Engineering,Shandong Jianzhu University,Jinan 250101,Shandong China;School of Materials Science and Engineering,Linyi University,Linyi 276000,Shandong China;School of Materials Science and Engineering,Beihang University,Beijing 100191,China;Shandong Yuanhang Youcai Ceramic Technology Co.,Ltd.,Linyi 276000,Shandong China)

机构地区：[1]山东建筑大学材料科学与工程学院,山东济南250101 [2]临沂大学材料科学与工程学院,山东临沂276000 [3]北京航空航天大学材料科学与工程学院,北京100191 [4]山东源航优材陶瓷科技有限公司,山东临沂276000

出　　处：《中国铸造装备与技术》2025年第2期27-36,共10页China Foundry Machinery & Technology

摘　　要：以钛合金精密铸件用CaO基陶瓷型芯的开发为背景,对行星式球磨仪参数对CaO粉末研磨的影响进行研究。分析了进料粒径、球料比和磨球填充率对CaO粉体粒度分布的影响,结果显示提高了粒度分布在目标区间(75~150μm)的CaO粉体的出粉率和台时产量。随后研究了不同制粉设备对CaO粉体圆度的影响,并研究了球磨粉末占比对坯料流动性的影响。最后本文采用注射成型技术制备了CaO基陶瓷型芯,并研究了坯料中球磨粉末占比对陶瓷型芯微观结构和性能的影响。结果发现,球磨粉末拥有更高的圆度,随着球磨粉末在坯料中占比提高,坯料流动性和陶瓷型芯的抗弯强度得到了提高。The influence of the parameters of the planetary ball mill on the grinding of CaO powder was investigated against the background of the development of CaO-based ceramic cores for titanium alloy precision castings.The effects of feed particle size,ball material ratio and grinding ball filling rate on the particle size distribution of CaO powder were analyzed,and the results showed that the milling rate and table hour output of CaO powder with particle size distribution in the target interval(75~150 μm)were improved.Subsequently,the effect of different powder making equipment on the roundness of CaO powder was investigated,and the effect of the percentage of ball milled powder on the fluidity of blanks was studied.Finally,in this paper,CaO-based ceramic cores were prepared by injection molding technology,and the effects of the percentage of ball-milled powder in the blanks on the microstructure and properties of the ceramic cores were investigated.It was found that the ball milled powder possessed higher roundness,and the flowability of the blank and the flexural strength of the ceramic cores were improved with the increase of the percentage of ball milled powder in the blank.

关 键 词：行星式球磨 粒度分布 CaO基陶瓷型芯 

分 类 号：TG221[金属学及工艺—铸造]