金刚石微粉在电镀砂轮制造中的实验研究  

Experiment research on diamond powder for the manufacture of electroplated wheels

作　　者：王永宝[1] 王战[1] 刘建双[1] 

机构地区：[1]郑州磨料磨具磨削研究所,郑州450001

出　　处：《金刚石与磨料磨具工程》2012年第6期42-45,共4页Diamond & Abrasives Engineering

摘　　要：通过对金刚石微粉的表面洁净化处理、粒度组成分析及粒度分布优选处理,得出了采用体积比V(HNO3)∶V(H2O2)=7∶3的HNO3+H2O2的混合液常温浸润2 h处理工艺,使得金刚石团聚消失,有效改善了电镀砂轮的团聚结瘤问题;粒度组成检测结果表明,同批次样品采用同厂家不同型号的激光粒度分析仪的检测结果存在差异;大颗粒金刚石发生共沉积后,不易通过机械修整去除,为电镀砂轮的质量稳定性埋下隐患;通过对金刚石微粉粒度分布进行优选处理,提高了粒度分布集中度。Through surface cleaning, size distribution analysis and optimization of diamond powder, a treatment process of diamond powder by infiltration in the mixture of HNO3 and H2O2 on volume ratio V（ HNO3 ）： V（ H2O2 ） = 7：3 at normal temperature for 2 hours was proposed. This process made diamond aggregation disappear and effectively improved aggregation nodulation problem of electroplated wheels. The inspection result of grain size distribution showed that there existed some difference in the inspection results of same lot samples when adopting different types of laser particle size analyzer of the same manufacturer. The large diamond grits were not easy to remove by mechanical dressing after co-deposition, which would bring hidden trouble for the quality stability of the electroplated wheels. Through optimization treatment, diamord grit size distribution was much improved.

关 键 词：金刚石微粉 表面洁净化 粒度组成 优选 电镀砂轮 

分 类 号：TG74[金属学及工艺—刀具与模具] TQ164[化学工程—高温制品工业]