道岔与无缝线路焊接后，随着轨温的变化，长钢轨纵向温度力将直接作用于道岔的撤叉和转撤部分。
When a turnout is connected with CWR through welded joints, the longitudinal rail temperature force ACTS directly on the frog and the switch section along with the variation of rail temperature.
结果表明：钢轨焊接所需顶锻力随顶锻量、顶锻速度的增加而增大，随焊口温度的降低而升高。
The results show that the upset force increases with the increasing of the upset length and upset speed, and increases with the reducing of the heating temperature.
论述了自行研制的钢轨全断面有效温度测试仪的原理及结构。
The principle and structure of the self made testing instrument for measuring the effective temperature in the full cross section of steel rail are described and discussed in this paper.
无缝道岔温度力的特点在于基本轨要承受附加温度力的作用，岔内钢轨受力和位移状况复杂。
The characteristic of the temperature stress in the jointless switch lies in supporting additional temperature stress on the stock rail, the stress and the displacement presents the complex nature.
自然环境条件下的温度变化会在钢轨内部产生拉伸应力，影响无缝线路轨道的稳定性。
The variability of weather and climate is a cause of considerable stress to CWR track which has influence on the stability of rail.
自然环境条件下的温度变化会在钢轨内部产生拉伸应力，影响无缝线路轨道的稳定性。
The variability of weather and climate is a cause of considerable stress to CWR track which has influence on the stability of rail.
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