So high precision of the mechanical cutting of each segment end face was required. For example,it was specified that planeness≤0.25mm,roughness≤12.5μm,inclination error between the axes and end face≤20"(1/10000).
钢塔节段端面机械切削加工及精度管理南京长江三桥每个钢塔柱共有22个节段,节段间采用“端面金属接触+摩擦型高强度螺栓”连接传力,这就要求每个节段有很高的端面机械切削加工精度,如:端面平面度≤0.25mm,粗糙度≤12.5μm,节段轴线与端面直角度≤20″(1/10000)。
参考来源 - 南京长江三桥钢塔节段制造及整体预拼的三维仿形分析·2,447,543篇论文数据，部分数据来源于NoteExpress
Using the complex optimization method, the planeness error value can be evaluated quickly and accurately on a microcomputer.
利用复合形优化方法，在微型计算机上可迅速、准确地求出此准则下的平面度误差值。
The main roller and the auxiliary roller and of a differential design so as to effectively enhance the planeness and evenness of the ironed fabrics.
主辊筒和副辊采用差动设计，有效地提高被熨织物的平整度。
According to different craft stages under bituminous pavement construction, discusses the important point of controlling the planeness of bituminous pavement.
根据沥青砼路面施工中不同工艺阶段，论述了沥青砼路面平整度的控制要点。
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