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无缝钢管生产工艺现状的特点是多种工艺并存。这和无缝钢管生产工艺发展的历史有关。这种并存的局面是一种非稳态,优胜劣汰,势在必行。值得注意的是:就先进的连轧管工艺来说,限动芯棒连轧管工艺发展特别迅速,当前正在向三辊式机架、紧凑式轧机的方向发展。再加上NRE工艺的出现,这种工艺将在各种口径钢管生产中占优势。从长远的经济效益出发,把握住文中所述的基本发展趋势,对于建新厂或改造老厂时的工艺抉择都将是有益的。
Seamless steel pipe production process is characterized by a variety of processes co-exist. This is related to the history of seamless steel tube production technology development. This coexistence situation is a non-steady state, the survival of the fittest, it is imperative. It is noteworthy that: on the advanced pipe rolling process, the limited mandrel pipe rolling process is particularly rapid development, is currently moving to the three-roll rack, compact mill direction. Coupled with the emergence of NRE process, this process will be in a variety of caliber pipe production dominated. Starting from the long-term economic benefits, grasping the basic development trends mentioned in the text will be beneficial for the process decision-making when building a new factory or renovating an old factory.