女人怎么靠自己赚钱

掌握表面粗糙度评定三原则 提高履带旋耕机配件使用安全性

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表面粗糙度是一种微观的几何形状误差。它是指履带旋耕机配件在机械加工过程中,由于刀痕、切屑分离时的塑性变形


(一)表面粗糙度的基本定义

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女人怎么靠自己赚钱  

在履带旋耕机配件测量中,表面粗糙度是评价产品表面质量的一项指标,它对零件的使用性能有影响


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履带旋耕机配件表面粗糙度的数值,是在垂直于被测表面的法向截面上给定的


(二)评定履带旋耕机配件表面粗糙度的基本原则

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3.测量部位。由于种种因素的影响,用同一加工方法加工出的表面,其不同部位的粗糙度值也不一样,因此测量粗糙度数值时,应在不同部位上测量。在实际测量时,若出现下列情况,则可以确认被测面为合格:第一个测得值不超过规定值的70%;较初的3个测得值均不超过规定值;较初的6个测得值只有一个超过规定值;较初的12个测得值只有两个超过规定值。【具体可参考《履带旋耕机配件延寿五要诀_来自专业管理者的经验分》的相关内容】

女人怎么靠自己赚钱  

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