3种典型热轧无缝钢管机组的产品壁厚精度浅析

如何获得更高的热轧无缝钢管的尺寸精度是新建或改造轧管机组重点考虑的问题。在简要介绍几种类型热轧管机组基本生产工艺过程和实际生产情况的基础上,对不同轧管机组所轧钢管的壁厚尺寸进行了随机检测;分析了各种机组产品壁厚的实际精度水平和影响产品壁厚精度的因素。

An Initial Discussion on Wall Thickness Tolerances of Seamless Steel Tubes Hot-rolled with Three Different Types of Pipe Mills

The wall thickness tolerance of hot-rolled seamless steel tubes is a major issue Which has to be addressed in case of operation of any newly-built or modified hot-rolling tube mill. Briefed here in the paper are the basic manufacturing process flows and operation practices of several types of tube mills. Random inspections of wall thickness tolerances of the tubes as produced by the said tube mills are made, based on which, the tube wall thickness tolerance as resulting from each individual mill and the elements responsible for the wall thickness tolerance are analyzed.