扭转参数对铜合金接触线扭转圈数影响研究

铜合金接触线在安装、使用等过程中不可避免存在扭转现象,不同的扭转参数对铜合金接触线的最大扭转圈数存在一定影响。本文通过扭转试验研究了扭转速度、张力以及扭转方向等参数对CTMH150接触线扭转圈数的影响,并分析了扭矩与扭转圈数的关系。研究发现,铜合金接触线的扭转圈数随着扭转速度、张力的增大先降低再增加,均存在一个转换点；双向扭转过程中的扭矩圈数大于单向扭转。此外,接触线的扭矩与扭转圈数成线性相关性。

Research on the Influence of torsion parameters on the number of turns of copper alloy contact line

The torsion of copper alloy contact line is inevitable in the process of installation and use. Different torsion parameters have certain influence on the maximum number of torsion turns of copper alloy contact line. In this paper, the influence of torsion speed, tension and direction on the number of torsion turns of CTMH150 contact line is studied by torsion test, and the relationship between torsion moment and the number of torsion turns is analyzed. It is found that the number of torsion turns of copper alloy contact line decreases first and then increases with the increase of torsion speed and tension, and there exists a transition point. The number of torsion turns in the process of bidirectional torsion is larger than that of unidirectional torsion. In addition, the torque of the contact line is linearly correlated with the number of torsion turns.