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表面粗糙度国家标准规定,形状参数采用幅度分布,轮廓支承长度率作为评定截面轮廓的综合参数。 幅度分布是轮廓微观不平高度的分布函数,幅度分布曲线即是轮廓偏距的概率分布曲线。在轮廓的取样长度内,分为等间距的N个纵坐标。在轮廓峰顶线至轮廓谷底线的区域内,作若干条平行于中线的等间距平行线。两相
Surface roughness national standards, the shape parameters using the amplitude distribution, contour length of the rate of support as a comprehensive profile to assess the profile parameters. The amplitude distribution is the distribution function of the height of the profile micro unevenness, and the amplitude distribution curve is the probability distribution curve of the contour offset. Within the sample length of the profile, there are N ordinate points equidistantly spaced. In the region of the contour peak line to the bottom line of the contour, a number of parallel lines at equal intervals parallel to the median line are made. Two-phase