陶瓷cBN超硬砂轮造孔工艺试验探究  

Experimental study on perforation technology of ceramiccBN superhard grinding wheel

作　　者：韩效奇 刘振波 杨菲 涂俊群 HAN Xiaoqi;LIU Zhenbo;YANG Fei;TU Junqun(Jiangsu Saiyang Precision Tools Technology Co.,Ltd.,Suzhou 215121,China)

机构地区：[1]江苏赛扬精工科技有限责任公司,江苏苏州215121

出　　处：《超硬材料工程》2023年第1期12-16,共5页Superhard Material Engineering

摘　　要：探究了在陶瓷cBN砂轮中碳粉造孔和陶瓷空心球造孔两种造孔类型的区别,实验了碳粉+淀粉混合的造孔剂在不同加入比例5 wt%、15 wt%和25 wt%,以及在1000℃、1050℃和1100℃不同烧结温度下,陶瓷cBN造孔砂轮性能表现,探究造孔工艺对cBN陶瓷砂轮的影响。实验结果证明,在文中的结合剂配方体系下,陶瓷cBN砂轮使用碳粉和淀粉混合造孔剂对砂轮进行空位造孔,加入比例为15 wt%,在1050℃下烧结,砂轮有着更好的机械性能,砂轮的磨削效率较好,抗折强度70.4 MPa,加工功率634 W,与不造孔砂轮相比降低了33.5%。The difference between the two types of pore-making which are carbon powder and ceramic hollow ball in ceramic cBN grinding wheel is investigated.The effect of pore-forming process on the performance of ceramic cBN grinding wheel is investigated by experiments with different addition ratios of carbon powder and starch pore-forming agents of 5 wt%,15 wt%and 25 wt%,and at different sintering temperatures of 1000℃,1050℃and 1100℃.The test result shows that under the binder formulation system in this paper,the ceramic cBN grinding wheel uses the carbonite and starch pore-making agent to make holes in the grinding wheel,adding the proportion of 15 wt%and sintering at 1050℃.The grinding wheel has better mechanical properties,grinding efficiency,bending strength of 70.4 MPa and processing power of 634W,which is reduced by 33.5%compared with the grinding wheel without hole.

关 键 词：造孔剂 陶瓷结合剂 CBN 磨削效率 

分 类 号：TQ164[化学工程—高温制品工业]