毛坯尺寸对金属橡胶微观组织结构特性的影响  

Effect of original size of MR elements on its inner micro-structural characteristics

作　　者：夏宇宏[1] 姜洪源[1] 张蕊华[1] 孟庆鑫 ANATOLY BELOUSOV 

机构地区：[1]哈尔滨工业大学机电工程学院,哈尔滨150001 [2]哈尔滨工程大学机电工程学院,哈尔滨150001 [3]俄罗斯萨玛拉国立航空航天大学,萨玛拉443086

出　　处：《哈尔滨工业大学学报》2006年第9期1461-1464,共4页Journal of Harbin Institute of Technology

基　　金：国家自然科学基金资助项目(50075017);哈尔滨市青年基金资助项目(2003AFQXJ035)

摘　　要：引入形状因子,分析了金属橡胶材料毛坯的尺寸对成型后金属橡胶节流元件内部微观孔隙分布的影响.用定量金相分析仪获得了圆柱形金属橡胶节流元件沿轴向不同截面的金相显微照片,采用定量立体法求得不同截面上的孔隙度的分布情况.逐渐改变毛坯的尺寸,通过曲线回归和计算,得到了制备圆柱形金属橡胶节流元件的最佳形状因子,进而求得毛坯尺寸和成型后样件的尺寸之间关系的理论计算公式.The factor of shape is introduced into the research of inner micro - structural porous distribution of MR throttling elements by analyzing the dimension of MR original product. A SEM analyzer is used to obtain the section photo of cylindrical MR throttling elements in the axis direction, and the distribution of porosity in MR is explored by quantitive cubic method. Changing the size of MR original products gradually, we can optimize the factor of the shape for MR cylindrical elements through curve fitting and calculating, then get the theoretical calculation expression for the relation between original and final size of MR products.

关 键 词：金属橡胶 节流 形状因子 制备工艺 

分 类 号：TH133.36[机械工程—机械制造及自动化]