穿孔工序是无缝钢管生产中的主要工序之一。介绍了近15年来穿孔工艺的发展,从设有导板的斜轧穿孔机到轧辊上下布置和导盘水平布置的Dicschcr穿孔机,以及随后的轧辊水平布置、带导盘或导板的锥辊式穿孔机,并较详细地介绍了锥辊式穿孔机主要技术特征及设计方面的新进展。 Perforating process is one of the main processes in seamless steel pipe production. The development of the perforation process in the last 15 years was introduced. From a cross-piercing mill with a guide plate to a Dicschcr piercer with a roll up and down and a horizontal guide plate, followed by a horizontal roll-to-roll arrangement of conical roller perforations with guide plates or guides Machine, and introduces the main technical features and the new progress in the design of the cone roller piercer in more detail.