一种氮化硅球模压模具的设计  

Design of a Pressing Die for Silicon Nitride Balls

作　　者：徐振宇[1,2,3] 周鹏飞 姚玉婷 万磊 张永乾[1,2,3] XU Zhenyu;ZHOU Pengfei;YAO Yuting;WAN Lei;ZHANG Yongqian(Luoyang Bearing Research Institute Co.,Ltd.,Luoyang 471039,China;Henan Key Laboratory of High Performance Bearing Technology,Luoyang 471039,China;China International Science and Technology Cooperation Base for Digitization Design of High Performance Bearings,Luoyang 471039,China)

机构地区：[1]洛阳轴承研究所有限公司,河南洛阳471039 [2]河南省高性能轴承技术重点实验室,河南洛阳471039 [3]高性能轴承数字化设计国家国际科技合作基地,河南洛阳471039

出　　处：《轴承》2021年第5期18-21,共4页Bearing

摘　　要：氮化硅是一种优良的轴承滚动体材料,其压制模具决定了氮化硅球制造的效率和质量。通过简化装卡方式优化模具结构,并使用冲击韧性更优良的CPM-3V材料制造冲头,结合类金刚石镀膜技术,可以显著延长冲头球窝磨损周期,并同时解决安装难,易碰损、崩角问题,将现有氮化硅球坯的生产效率提高了2~4倍,配套6 t粉末自动成型机,压制速率可达60~144粒/min。Silicon nitride is an excellent material for rolling elements of bearings,and its pressing die determines efficiency and quality for manufacturing of silicon nitride balls.By simplifying clamping,optimizing die structure and using CPM-3V material with better impact toughness to manufacture punch,combing with diamond-like carbon coating technology,the wear cycle of punch ball socket is significantly extended,and the problems of difficult installation,easy damage and edge crack are solved at the same time.The current production efficiency of silicon nitride billet is increased by 2~4 times.Equipping with 6 ton powder automatic molding machine,the pressing rate reaches 60~144 granules/min.

关 键 词：滚动轴承 氮化硅陶瓷 球 挤压成型 模具 结构 材料 

分 类 号：TH133.331[机械工程—机械制造及自动化] TP202[自动化与计算机技术—检测技术与自动化装置]