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, and the average sliding friction coefficient is between 0.55 and 0.73. The friction coefficients of the interfaces are large, and the friction performance are unstable. It is not suitable for stone structure isolation joint. By smearing the molybdenum disulfide grease in the double-layer steel plate interface, the friction coefficient of the interfaces can be efficiently decreased......
-ying, GAO Fei. Experimental study on braking temperature and friction coefficient deviation between reduced and 1:1 friction pair[J]. The Chinese Journal of Nonferrous Metals, 2021, 31(3): 707-714... dry and wet friction conditions[J]. Nonferrous Metals, 2011, 63(2): 32-37. Experimental study on braking temperature and friction coefficient deviation between reduced and 1:1 friction pair LI Bing......
compression was established. Based on crack-line analysis method, the approximately solutions for the crack tip stress intensity factor(SIF) were deducted. The influences of friction coefficient and side... compression; finite-rock-plate; closed-crack; stress intensity factor; friction coefficient; side pressure coefficient ......
. Key words: CrTiAlN coatings; mechanical property; structural property; friction coefficient 铝合金是目前重要的轻合金结构材料之一,在汽车和航空航天等相关领域具有巨大的应用前景.为了改善铝合金表面的力学性能和减摩特性,许多的研究致力于铝合金的表面涂层处理技术,如喷涂,化学转化以及微弧氧化等[1-3... V时摩擦因数最大.N2水平和衬底偏压对摩擦因数的影响与涂层内氮化物离子键的浓度,涂层的致密度以及沉积结构等有关. 图6 CrTiAlN涂层的摩擦因数-循环次数曲线 Fig.6 Friction coefficient-cycle number curves of CrTiAlN multilayer coatings......
, rolling friction coefficient, spring constant, were systematically investigated. Results show that by increasing the rolling friction coefficient, the structural relative displacement due to seismic..., and the rolling friction coefficient. Furthermore, increasing the spring constant can decrease the structural relative displacement, as well as residual displacement, however, it increases the structural response......
phases in the deposited coatings evolved from Cr+Cr2N to Cr2N+CrN,the microstructure became denser and the hardness increased;in addition,reduced coefficient of friction and improved wear resistance...The Effect of Unbalanced Coefficient of Magnetron on the Structure and Properties of CN_x Coatings文晓斌,李显School of Material Science and Engineering,Xi’an University of Technology摘 要:
and the friction coefficient declines.When sliding speed is lower than 1.0 m/s the wear rate of the FL Ti-50Al alloy increased with the load and sliding speed,but the friction coefficient is relatively... rate of the FL Ti-50Al alloy declines significantly and the friction coefficient increases.Compared to the as-cast alloy,the FL Ti-50Al alloy has better wear resistance.关键词:......
Experimental and field study on dissipation coefficient of supersaturated total dissolved gasFENG Jing-jie(冯镜洁), LI Ran(李然), MA Qian(马倩), WANG Le-le(王乐乐) (State Key Laboratory of Hydraulics... the dissipation coefficient accurately. In agreement with field observations and experiment data, dimensional analysis and regression were performed to propose a formula for estimating the dissipation coefficient......
一种新型的基于最小二乘回归St14钢变形抗力模型的方法杨景明1,杨志芬1,车海军1,张青1,郝瑞峰1(1.河北省秦皇岛市燕山大学工业计算机控制工程河北省重点实验室)摘 要:冷连轧的主要工艺参数为轧制力和前滑,而轧制力和前滑设定计算的精度取决于轧件的变形抗力和摩擦因数的精度,变形程度是影响变形抗力的一个重要因素,将所选变形抗力回归模型经过取对数等变换成线性函数,以鞍钢生产的St14钢为例,利用现场实际数据通过最小二乘来逐次拟合变形抗力回归模型中的系数.在同一轧制条件下,摩擦因数用3种不同的获得方法,其中前2种是由......
