在连轧中造成钢管壁厚超差的主要原因是“竹节”。本文着重分析了润滑条件、润滑状态、孔型设计和工具使用状态、外张力的给定及合理的调整对“竹节”的影响,并提出了一些克服“竹节”的工艺措施。 In the continuous rolling caused by the wall thickness of the main reason is “bamboo.” This paper focuses on the analysis of the lubrication conditions, lubrication conditions, the use of hole design and tool state, the external tension given and the rational adjustment of the “bamboo”, and put forward some to overcome the “bamboo” process measures.