Smooth finished disc flats : these “ mate ” with seat flats to give a highly efficient seal ; prevents leakage into shaft areas 光滑表面的阀板：这些阀板上的“配套”使得密封非常有效，防止泄漏到轴区域内。
Use ： the product applies to any glossy surface any glossy surface dust , dirt such as clean wood , dolomite , granite , makes the floor bright and clean becoming clear 用途：本品适用于清洁墓、云石、花岗岩等任何光滑表面的尘埃、污垢、令地面光洁明亮。
In this paper , the super - smooth surface measurement and preparation methods and their development are summarized , and the chemical mechanical and mechanism of polishing is also discussed 系统介绍了超光滑表面的检测、制备技术及其发展，并讨论了抛光过程中的机械化学作用机理。
The scratching test was carried out with a single diamond tool to study the removal mechanism of litao3 wafer by load . the ae signals were measured , and the scratched surfaces of litao3 wafers in different conditions were observed by metallography microscope 通过单颗粒金刚石压入钽酸锂晶片光滑表面的划痕实验，研究钽酸锂晶片的机械力学性能和断裂破坏情况，寻找合理的抛光压力。
It is found that the great cracks on the coarse surface are initiated easily than on the smooth surface by the sem observation and the crack size obtained at the dynamic indentation experiment is bigger than at the static indentation experiment under the same load . it is showed the single crystal silicon is easier to initiate the crack and fracture under dynamic load , the single crystal silicon ’ s 然后通过sem观察单晶硅试件表面压痕形貌,发现粗糙表面比光滑表面容易生成大裂纹,在相同载荷作用下单晶硅材料在动态压痕试验得到的裂纹要大于在静态压痕试验得到的裂纹,表明在动态加载条件下单晶硅材料更容易生成裂纹和破碎。
This paper first analyzes the particle removing mechanisms by means of dry laser cleaning and stream laser cleaning respectively in detail . based on those , the effective ways to cleaning classic super - smooth optical wafers are put forward and optimized cleaning parameters are gained through a serial of experiments 本文针对典型的光学玻璃基片，分析了激光清洗的机理，讨论了激光清洗超光滑光学基片表面的方式，进行了激光清洗的工艺试验，并且开发了超光滑表面清洁度自动分析软件。
Optics material such as optical glass , optical crystal and glass ceramic can be machined with mrf . the mrf machine tool is the fundamental equipment to fulfill advanced techniques of manufactory . as a part of the key project , “ research on nano - scaled ultra - smooth surface magnetorheological finishing technique ” , the mrf machine cnc system was developed and some key techniques such as surface control , contour control , servo control and interpolate algorithm are deeply studied in this dissertation 磁流变抛光机床是实现磁流变抛光技术的重要基础设备,本论文结合“纳米级超光滑表面磁流变加工新技术研究”的课题,开发了磁流变抛光机床数控系统,并对其诸如面形控制、轮廓控制、伺服控制及插补算法等关键技术进行了比较深入的研究。
The drag reduction of riblet biomimetic non - smooth surface is given out by numerical simulation with cfx . through analysis of velocity vector field and velocity fluctuation this article probe into drag reduction mechanism of unsmooth surface . through analysis of behavior of single microbubble and turbulent kinetic energy this article indicate drag reduction mechanism of microbuble 对仿生非光滑表面减阻机理,采用流体力学分析软件cfx进行了数值模拟,通过对速度场、剪切应力、涡量的计算结果进行分析,得出了仿生非光滑表面减阻几种主要原因。
The character of tube roll mill is that it combines the advantages of ball mill and roller , then great improves the grinding efficiency through the study of the grinding theory of tube roll mill , pressing stress , grinding effect and the comparation between roller and vertical mill , this text combined the national important technology equipment crert item - - tube roll milling developing item , gets following results : firstly , because of the special structure of tube and roll , powder from single particle grinding in the early peried contincely transit press grinding stage , it better stops the loss of splash energy , secondly , during the grinding progress , powder form loose to dense fully uses the nonsmoth surface of particle and stress focus to make its stress lower than roller " s 本文结合国家重大技术装备国产化创新项目-筒式辊碾磨开发项目，通过对筒辊磨的粉磨机理、层压应力的分析、粉磨效果的研究及与辊压机、立磨粉磨效果、粉磨机理的比较，可知：首先，由于筒与辊的特殊结构方式，筒辊磨内粉体由初期的单颗粒破碎逐渐过渡到层压粉碎阶段，较好地防止了飞溅能的损失，其次，在粉磨过层中，粉体由疏松到密实，充分利用了颗粒的非光滑表面及应力集中效应使其应力低于辊压机。实验证实，筒辊磨的粉磨效果大大优于立磨和辊压机。
Based on g - w contact model , two rough surfaces in contact were simplified to a smooth one and a rough one which has regular rectangular asperities , and a three - dimensional transient thermal and stress coupled fem model was established using thermal - structure sequential coupling . the course of the sliding with friction was simulated using the nonlinear multiphysics field fem , meanwhile considering thermal - elastic problems of the two bodies , to calculate and analyze the temperature , contact pressure and stress of the sliding contact surfaces with frictional heating 基于g - w接触模型，将两个粗糙表面简化为一个有规则排列的长方体微凸体的粗糙表面与一光滑表面，利用热结构顺序耦合建立三维瞬态有限元计算模型，考虑两个物体摩擦接触的热弹性问题，采用非线性有限元多物理场来实现，对粗糙表面接触模型的瞬时摩擦温度场、压力场和应力场进行了计算分析。
