开发了与钢管减径过程相关的辅助工艺系统，能够用来确定轧辊的速度制度及张力系数等。
A process design system for tube reducing process has been developed to determine the roll speeds and tension coefficients at individual rolling stands.
分析了钢管在张力减径过程中产生管端增厚的原因，阐述了切头端控制(c.e.c)的原理、方法，并就其关键问题进行了探讨。
The reason of thickness of pipe end increasing in tension reducing is analyzed. The principle and method of cutting end control (CEC) are introduced. The key problems are discussed.
钢管在减径过程中，减径量一定时，影响其增壁量的主要因素是钢管的轧制温度和张力系数等。
During the process of reducing, in case of constant diameter reduction, the major elements responsible for tube wall increase are the rolling temperature and the stretch factor, etc.
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