The technologic study in tension-reducing steel tube

The paper provides the related formula on the tension-reducing technology. According to the relevant formula, the software of Visual Basic 6.0 is used to design the process. Then the programs and methods also are introduced. The results of software will be applied in practical so that the process parameters are obtained more efficiently and convenient. According to the technology of stretch-reducing rolling process, the three-dimension model of 12-stand tension reducing is built. And finite element software of MARC is used to analysis thermal-mechanical coupled state by the non-linear of elastic-plastic method. The stress distribution of pipe is obtained in the process of reducing tension process. Theoretical calculation values are compared with simulation and measured values, whose results are consistent. It provides the theory basis for the study of the tension reducing process, and guidance for real production.