摘要
研究空心氧化铝微球质量分数和粒径(0.2,0.4,0.6 mm)对砂轮的总气孔率、抗弯强度、硬度和微观结构的影响,制备以空心氧化铝微球为造孔剂的陶瓷结合剂金刚石砂轮,并研究砂轮对石英玻璃的磨削性能。结果表明:随着空心氧化铝微球质量分数增加,砂轮总气孔率升高,抗弯强度和硬度降低;空心氧化铝微球质量分数相同时,其粒径越小,砂轮的总气孔率越高,抗弯强度和硬度越低;制备的空心氧化铝微球陶瓷结合剂金刚石砂轮可用于磨削石英玻璃,加工后石英玻璃的表面粗糙度从0.5113μm降至0.0206μm。
The effect of the content and the size(0.2,0.4,0.6 mm)of the hollow corundum microspheres on the total porosity,the flexural strength,the hardness and the microstructure of vitrified bond was investigated.The ceramic bon-ded diamond grinding wheel with hollow alumina microspheres as pore forming agent was prepared,and the grinding performance of the grinding wheel on quartz glass was studied.The results show that with the increase of the content of hollow corundum microspheres,the porosity increases,and the flexural strength and the hardness decreases at the same time.With the same content of hollow corundum microspheres,addition the smaller size of microspheres could lead to the increase of the porosity and the decrease of flexural and hardness.The vitrified bond diamond wheel contained with hollow corundum microspheres can used to grind quartz glass,and the surface roughness can be reduced from 0.5113μm to 0.0206μm.Diamond wheel contained with hollow corundum microspheres can used to grind quartz glass,and the surface roughness can be reduced from 0.5113μm to 0.0206μm.
作者
轩闯
王超超
白福厚
张凤林
XUAN Chuang;WANG Chaochao;BAI Fuhou;ZHANG Fenglin(School of Electromechanical Engineering,Guangdong University of Technology,Guangzhou 510006,China)
出处
《金刚石与磨料磨具工程》
CAS
北大核心
2022年第4期442-448,共7页
Diamond & Abrasives Engineering
基金
广东省“珠江人才计划”本土创新科研团队项目(2017BT01C169)
佛山市核心技术攻关项目(1920001000361)。
关键词
空心氧化铝微球
陶瓷结合剂
金刚石砂轮
总气孔率
力学性能
磨削性能
hollow corundum microspheres
vitrified bond
diamond grinding wheel
total porosity
mechanical prop-erties
grinding performance
