磁流变抛光液沉降稳定性的研究  

Study on the sedimentation stability of magnetorheological fluid

作　　者：顾勇兵[1] 张云[2] 王于岳[2] 朱永伟[1] 

机构地区：[1]南京航空航天大学机电学院,南京210016 [2]清华大学机械工程系,北京100084

出　　处：《金刚石与磨料磨具工程》2013年第5期27-30,34,共5页Diamond & Abrasives Engineering

基　　金：国家自然科学基金(51275256)

摘　　要：沉降稳定性是磁流变液性能的评价指标之一,沉降率能好的抛光液能够保证磁流变加工特性稳定。实验选取了两种类型的表面活性剂,探索了搅拌时间、球磨工艺等因素对磁流变液沉降特性的影响。结果表明:表面活性剂的种类对铁粉的分散特性影响明显,延长搅拌时间可改善铁粉的分散特性,并最终确定了表面活性剂和搅拌时间的最佳工艺。Sedimentation stability is one of the property evaluation index of magnetorheological fluid( MR fluid). MR fluid with low sedimentation rate can ensure stability during processing. Based on analysis of the causes of sedimentation,two kinds of surfactants are selected for anti-sedimentation. Effects of stirring time and ball milling process on sedimentation stability of MR fluid are tested. The results indicate that the kind of surfactant has a significant influence on sedimentation. Prolonging the stirring time can improve the dispersion characteristics of iron. Optimum process on surfactant and stirring time are concluded.

关 键 词：磁流变液 表面活性剂 沉降稳定性 

分 类 号：TB381[一般工业技术—材料科学与工程]