针对钢轨焊接的电压控制要求，研制了钢轨闪光焊稳压调压电源系统。
To effectively control the voltage of rail flash welding, a kind of adjustable power supply system is developed.
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.
钢轨焊接是无缝线路建设的重要环节，它直接决定了钢轨接头的质量并影响到铁路运输的安全性。
The rail welding plays a significant role in the construction of continuous railways, for it directly determines the quality of rail welding joints and the security of railways transportation.
在阅读相关文献的基础上，设计并制作了一种新型的钢轨焊接接头平直度测量仪的相关软件和硬件。
Based on a lot of related documents, in this article, the hard and soft system of a new style of E-Class rail foot flatness measuring instrument was designed and made.
研究目的：为了研究轨道不平顺对轮轨作用力的影响，从而为钢轨焊接接头不平顺限值提供技术依据。
Research purposes: By analyzing the effect on impact force between wheel and rail by track irregularity, technical evidences on limit of irregularity on rail welded joints are provided.
平直度作为钢轨焊接接头外观质量的重要指标，其合格与否直接关系到列车运行平稳性及乘坐舒适性。
Flatness, as an important factor to evaluate the quality of outward appearance of welded joints, its compliance is directly related to train running stability and ride comfort.
研究目的：为了研究轨道不平顺对轮轨作用力的影响，从而为钢轨焊接接头不平顺限值提供技术依据。
Using this model, the dynamic responses of the rail joints are calculated, which provides the theoretical basis for raising speed of Jing Jiu Railway.
钢轨焊接是无缝线路建设工程中的关键环节，它直接决定了钢轨接头的质量，从而对铁路安全有重要影响。
The rail welding plays an important role in the engineering of laying continuous welded railway (c WR), and decides the quality of rail tie-in directly, which has great influence on railway security.
利用所研制的该平直度检测仪进行了钢轨焊接接头的平直度测量，应用表明：所研制的装置能够实现钢轨焊接接头的平直度测量。
Measurement of the flatness of rail hand been finished by the rail foot flatness measuring instrument, it shows that the device designed can achieve the measure of Smoothness of welded joints.
模拟钢轨焊接及焊后热处理工况，采用热膨胀方法分别测定uic 900a及u75 V钢轨钢的连续冷转变曲线(CCT曲线)。
By simulating welding and simulating heat treatment after welding, CCT Curves of UIC900A and U75V rail steels are determined by the expansion method.
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.
采用两种过渡层方法，使用研制的过渡层焊接材料，结合强制成形电弧焊工艺进行了高锰钢辙叉与钢轨双过渡层对接焊试验。
By two double-mediate layer method, using developed welding materials and technology of forced arc molding, butt joining tests of high manganese steel with rail steel are completed.
碳钢钢轨与高锰钢辙叉的焊接难度很大，仍属国际性难题。
It is very difficult to welding a high carbon steel rail and a high manganese steel frog, which is still a worldwide puzzle.
由于钢轨接触焊接头灰斑与性能受众多参数综合影响，故采用正交设计安排试验。
Because of that both the grey spots and the performances of the rail resistance welding joints are under the synthetical influence of many parameters, the orthogonal design was used to settle tests.
该控制系统经在实际生产中应用表明：气体流量控制及混合比控制方便、可靠、精度高，大大提高和稳定了钢轨的焊接质量。
The control system is convenient, and of high reliability and precision. Its applying in production highly improved the welding quality of the steel rail.
影响钢轨闪光焊接头焊接质量的因素很多，其中焊机动力柱的送进速度就是重要因素之一。
The feeding speed of shifting unit of welding machine is one of the most important factors of rail continuous flash welding quality.
有效地控制钢轨连续闪光焊的动力柱送进速度，可以使整个焊接过程保持连续和稳定的闪光，从而获得优良的焊接接头。
Flash can be continual and steady, and then, the good welding joints could be obtained by properly controlling feeding speed of shifting unit of rail continuous flash welding.
本文基于闪光焊接理论研究及钢轨闪光焊接的工艺要求，设计了一种智能控制的钢轨闪光焊焊接系统。
In this paper, on the base of the study of flash butt welding theory, a new intelligent control system of rail flash butt welding is developed.
本文介绍了移动式钢轨气压焊接技术在上海地铁轨道维修中的应用，表明移动式钢轨气压焊接技术适合地铁维修施工，值得推广运用。
This article introduce the application of mobile rail gas pressure welding technology in the track maintenance of Shanghai Metro, and bring forward this technology is applicable and worthy to spread.
脉动闪光工艺的有效热输入大，有利于降低落锤断口灰斑，适合焊接U75V钢轨。
The effective thermal input of pulse flash process is large, it can help reduce the drop weight test fracture of flat spot, which is suitable for welding U75V rail.
无缝线路长钢轨通常由铁路焊轨厂或现场焊轨基地焊接。
Long rails in jointless track are usually made on welded rail site or in railway welded rail factory.
高速轨道工程建设急需钢轨高效化焊接技术。
High speed rail engineering developments need high efficiency welding.
灰斑已成为无缝线路钢轨结构接触焊接头最突出的缺陷。
Grey spot has become the most conspicuous defect in resistance welding joint of the structure of continuous welded rail track.
本文对不同焊接方法的钢轨焊头质量进行比较，提出线路上应优选移动式闪光焊焊接钢轨，并提出基地焊接长定尺钢轨的参考工位工序配置。
This paper makes a comparison of the quality of rail joints welded by different methods, proposes that the movable flashed welded rail should be adopted on passenger dedicated line, and pres...
本文对不同焊接方法的钢轨焊头质量进行比较，提出线路上应优选移动式闪光焊焊接钢轨，并提出基地焊接长定尺钢轨的参考工位工序配置。
This paper makes a comparison of the quality of rail joints welded by different methods, proposes that the movable flashed welded rail should be adopted on passenger dedicated line, and pres...
应用推荐