您要查找的是不是：
- By way of studying thehardness of rail weld after flash welding or thermit welding, it is shown that bainite rail AB1 has higher. 介绍了熄焦车轨道改造前存在的问题,对铝热焊接进行了理论分析,阐述了铝热焊接行车轨道的社会效益及经济效益。
- This paper analyzes various welding defects appearing in the process of thermit welding, and advances some control measures. 分析了铝热焊焊接过程中出现的各种焊接缺陷,并提出了预防措施。
- Thermit welding and elastic fastening device can reduce the number of joints, overcome the thermal expansion and cold shrinkage of rails, and make the operation of traveling crane smooth and steady. 采用钢轨弹力紧固装置和钢轨铝热焊技术,减少钢轨接头,克服钢轨热胀冷缩带来的弊端,使得行车在钢轨上运行平稳可靠。
- nonpressure thermit welding (NTW) 热剂铸焊
- The control and improvement of thermit welding of jointless track 无缝线路钢轨铝热焊接质量的控制与提高
- Control over quality of thermit welding for rail connection 钢轨接头铝热焊焊接质量的控制
- Keywords rail welding;thermit welding;wielding defect; 钢轨焊接;铝热焊;焊接缺陷;
- Microporosity in thermite weld joint consiste of blow hole and shrinkage cavities. 氧或硅含量过高形成氧化物或硅酸盐;
- Keywords thermit welding elastic fastening device united application; 铝热焊;钢轨弹力紧固装置;联合应用;
- Study of defect due to preheating in thermit welds 预热不当导致的铝热焊接头缺欠研究
- The pattern of fracture by impact penetration test and tensile fatigue test of thermite welding with stereoscan was observed,and the component of defect with energy spectrum was analyed. 结果表明:微观缺陷主要包括微孔和夹杂,其中微孔由微气孔和微缩孔组成,夹杂物按形态和尺寸分为团簇状夹杂、锥状夹杂、粒状夹杂、积聚物夹杂、丝状夹杂和混合形夹杂。
- Some metals weld better than others. 有些金属容易焊，有的不容易焊。
- The quality control of thermit welding during the stress relief of jointless track at low temperature 低温环境下无缝线路应力放散施工铝热焊焊接质量的控制
- Exploration on causes of unusual reflection in ultrasonic flaw detection for rail thermit welding 关于铝热焊超声波探伤异常反射的原因探讨
- On reaching welding heat, the metal surfaces are pressed together. 当金属表面达到焊接热度时就会压在一起。
- Study and prevention of defects in rail thermit welds 钢轨铝热焊缺陷的研究与防止
- Some of the students are welding capacitor; the others resistor. 学生中的一些人在焊接电容，另一些人在焊接电阻。
- It is proved that the mechanical properties of the welds are much higher than that of the thermite welds and approach the properties of flush butt welds. 采用这种新方法,可大幅度提高铝热焊接头质量,使接头各项性能接近闪光对焊的水平。
- Keywords armored steel;thermit welding;welding joint;anti-break performance;anti-shock strength; 装甲钢;铝热焊;焊接接头;抗断性能;抗击强度;
- Some of the students are welding capacitors; the others resistors. 学生中的一些人在焊接电容，另一些人在焊接电阻。
