烧结工艺条件对BCB砂轮性能影响的实验研究  

Experimental study of influence of sintering parameters on properties of BCB grinding wheel

作　　者：李伟[1] 孙强[1] 

机构地区：[1]浙江工业大学机械制造及自动化教育部重点实验,杭州310014

出　　处：《金刚石与磨料磨具工程》2010年第2期8-11,共4页Diamond & Abrasives Engineering

基　　金：国家自然科学基金资助项目(50775207);浙江工业大学机械电子重中之重学科开放基金资助项目(2009EP017)

摘　　要：在竹炭结合剂(Bamboo Charcoal Bonded,BCB)砂轮的制造过程中,制造工艺对BCB砂轮机械性能具有重要的影响。本文介绍了BCB砂轮的烧结工艺过程,探讨了烧结温度、树脂比例等工艺条件对BCB砂轮组织及机械性能的影响,并通过X射线衍射、SEM图对BCB砂轮内部组织的形成进行了观察与分析。结果表明,BCB砂轮的抗压强度和硬度会随着树脂含量的增加而增大;碳化处理改变了BCB砂轮材料的结构与性能,随着碳化温度的升高,砂轮抗压强度有增加的趋势,但变化并不显著。A kind of bamboo charcoal bonded（BCB） grinding wheel for ELID grinding was developed with bamboo charcoal-phenolic resin composite as bond under vacuum condition.The pyrolysis behavior of the new bamboo charcoal-phenolic resin material was studied by thermo gravimetric analysis（TGA）,and the structural characterization of the new material was performed by scanning electron microscopy（SEM） and X-ray diffraction（XRD）.Their mechanical characteristics were also investigated in the paper.The results showed that the compressive strength and hardness of BCB grinding wheel increased with the resin content increasing;the carbonization changed the structure and characteristics of BCB wheel;the mechanical strength of BCB wheel increased slightly with the carbonization temperature increasing.

关 键 词：BCB砂轮 烧结工艺 机械性能 

分 类 号：TG74[金属学及工艺—刀具与模具]