无缝钢管管端超差部分的切除,以往是根据多次实测结果,作为各种规格钢管的标准,按照一定长度进行切断。因而,管端尺寸正确与否,只能在切管后经检查才能判定。这样,难免在工时和成品率方面造成浪费。为了改善这种状况,日本住友金属工业公司研制了能够同时测量管端外径和壁厚,并恰当确定切断位 In the past, the ultra-poor part of the seamless steel pipe was cut off according to a number of measured results as a standard for various specifications of steel pipes in accordance with a certain length. Therefore, the pipe end size is correct or not, can only be judged after cutting pipe. This inevitably leads to waste in terms of man-hours and yield. In order to improve this situation, Japan’s Sumitomo Metal Industries has developed a pipe can be measured at the same time the outer diameter and wall thickness, and the right to determine the location of cutting