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- Body ? streamlined flow path minimizes pressure drop. Butt weld, venturi or flanged ends provide piping alternatives. 阀体?流线形流道，最大限度减少压降。对焊、缩喉管或法兰连接端口几种可供选择的连接方式。
- Butt welded and seamless pipe fitting Products: elbow,tee,nipple,stub end, MAIN TECHNICAL PARAMETE... 发布者：梁海龙所在地：浙江温州市行业：建筑、建材职位：业务主管工作年限：二年以上
- Turbulence, erosion and pressure drop are minimized.Flanged End-Crane cast steel gate valves are available in flanged end and butt weld ends. 所有阀盖构件都是铸件，并且按照严格的一致的公差标准进行抛光，使得阀体与阀杆能够准确校准，密封更加容易。
- Body: Strong construction assures maximum safety over the recommended pressure and temperature range. Both flange and butt weld ends are available. 阀体：坚固耐用的结构，确保在相应的压力温度等级范围内的安全性。可提供法兰和对焊两种连接方式。
- The rail flash butt welding machines are widely used in continuous welded rai ltrack in our country, but they are mainly imported abroad. 我国主要依靠引进国外钢轨闪光焊机进行焊轨生产和无缝线路铺设施工,而具有全部自主知识产权的国产钢轨闪光焊机目前尚属空白。
- The design, characteristics and advantages of jointless line continuous welded rail on the railway bridge in our country were introduced. 介绍无缝线路的优点、我国铁路桥上无缝线路的设计及其特点。
- Some crack extension probably developed from the unfused section of the butt weld across the thickness of the stiffener during transport and erection. 有些裂纹可能在运输和安装过程中就从加劲肋对接焊未熔透处开始发展。
- With the development of high-speed and high-haul railway lines, the continuous welded rail (CWR) has been used in many countries. 随着铁路高速化与重载化的发展,世界各国均广泛采用无缝线路技术。
- This indicated that the fracture had initiated at the unfused butt weld in the longitudinal stiffener. 研究表明裂纹是从纵向加劲助未熔透的对接焊缝中起始的。
- Tracks [Long welded rails] are being laid for[on] this line. 这条线路正在铺设铁轨[长轨]。
- The butt weld is easier to inspect nondestructively than the fillet welds. 对接焊缝比角接焊缝更容易进行无破坏检查。
- Tracks [Long welded rails] are being laid for[om] this line. 这条线路正在铺设铁轨[长轨]。
- It is proved by experiments that this closed loop control system can eliminate the influence by man made effects, assure the weld parameters? repetition? simplify the operation, stabilize the quality of the welded rail. 控制系统现场应用表明,采用该系统进行的钢轨气压焊焊接,可大大减少人为因素的影响,保证焊接参数的复现性,简化操作,稳定钢轨焊接质量。
- This article introduced the experiment of residual stress in flat tubeplate head of large scale fuel boiler that was manufactured by cold rotary extruding and butt weld. 本文介绍了大型燃油锅炉经拼板焊接和冷旋压加工制造而成的平管板封头残余应力试验。
- As the use of continuous welded rail (CWR) increases in track structure, the derailing disasters associated with track also increase in great numbers due to the high compressive thermal stress. 摘要把温度力作用下的无缝线路简化为纵向力作用的弹性等间距支承的无限长均匀梁结构，通过连续梁理论，建立了纵向力作用下无缝线路钢轨的振动模型。
- Fractured 1Cr18Ni9Ti butt welding flange was analysed by OM, SEM and EDX. 用光学显微镜、扫描电镜和能谱仪分析了 1 Cr1 8Ni9Ti对接焊法兰盘断裂原因。
- The joint less switch is one of the critical technology for the implementation of trans-section Continuous Welded Rail (CWR), which enables that CWR will no longer be a barricade of driving speed. 无缝道岔是实现跨区间无缝线路的关键技术之一，使无缝线路真正不再成为提高行车速度的制约因素。
- Statuses of CO2Laser-MIG Hybrid Butt Welding with Various Parameters[J]. 引用该论文 双元卿;王康健;陈武柱;单际国;张永强.
- As the use of continuous welded rail(CWR)increases in track structure,the derailing disasters associated with track also increase in great numbers due to the high compressive thermal stress. 把温度力作用下的无缝线路简化为纵向力作用的弹性等间距支承的无限长均匀梁结构,通过连续梁理论,建立了纵向力作用下无缝线路钢轨的振动模型。
- Welded rail tunnels used mobile CWR rail contact welding method for China's domestic initiative. 隧道内焊轨采用移动式无缝线路钢轨接触焊施工方法，为中国国内首创。
