查询词典 butt chisel

The feedback of К190ПК rail flash welding machine was low, and it's difficult to weld U75V steel alloy rail with continuous flash butt welding process. The software and hardware of control system has been reconstructed to solve these problems.

针对К190ПК钢轨闪光焊机响应速度慢，只具有连续闪光焊工艺，难以实现U75V钢轨的焊接等问题，对焊机控制系统的软、硬件进行了改造。

I concluded early in the company's products steel products joint electricity pressure welding slag, flash butt welding at the same time, developed a cone thread, cold extrusion reinforced mechanical joints.

我公司产品在总结早期产品钢筋接头用电渣压力焊、闪光对焊的同时，又开发研制了锥螺纹、冷挤压钢筋机械连接接头。

The flash butt welding parameters, such as flash model, flash velocity and initial clamp distance were analyzed quantitatively. The rule of heat producing and temperature distribution by different welding parameters in coupling with electric and heat was researched.

对钢轨闪光焊过程中闪光模式、闪光速度及起始夹具距离等规范参数的变化规律进行了定量分析，揭示了电热耦合过程中不同焊接规范组合下的产热规律和温度分布规律。

The results of the experiments show that the model simulated the actual process by flash butt welding accurately.Using the electric-heat coupling model built, this work discussed how to get the temperature field with different welding parameters and its effect conditions.

对电阻闪光对焊过程中伸出长度、闪光模式、闪光速度等规范参数的变化规律进行了定量分析，揭示了电热耦合过程中不同焊接规范组合下的产热规律和温度分布规律；利用所建立的闪光对焊热力耦合模型计算了顶锻过程中顶锻接触行为的主要影响因素与规律。

Three types of SiCp/3003Al composites which was with the volume fraction of reinforcement of 0%,15% and 30% were welded by continuous flash butt welding under the same welding technology parameters.

用连续闪光对焊方法在同种焊接规范下分别对增强相含量为0%、15%、30%的SiCp/3003Al复合材料进行了连接，利用光学显微镜、SEM、AG-25TA型电子拉伸试验机对焊缝组织及性能进行分析，结果表明：含15%、30%SiCp的复合材料焊缝成型良好，含30%SiCp的复合材料接头强度最高。

The steel is provided with the characteristics of ultra fine grain and ultra purity, so the result has the excellent mechanical properties with combination of strength and toughness. DC flash butt welding is a kind of solid joining method with high efficiency. The micro characteristics of HAZ affect the weld joints greatly.

直流电阻闪光对焊是一种高效的固态连接方法，其焊接热影响区的显微特性对焊接接头的性能有着重要的影响，由于这种方法与熔化焊具有本质的区别，所以对超细晶粒钢的闪光对焊焊接适用性研究会有助于推进新一代钢铁材料的研究和应用开发。

Based on these, pulse flash butt welding function was carried out with the use of the method of joining proportional control and ON-OFF control and current feedback. Welding prcess was automatically controled by Programmable Logical Computer.

在此基础上，以焊接电流作为反馈参数，采用比例控制与ON-OFF控制相结合的方式实现了钢轨脉冲闪光焊功能；采用可编程控制器控制焊接过程，实现焊接过程自动化。

According to equivalent circuit of the main welding circuit, a mathematic model was derived for maximum output power of theК-type alternative current rail flash butt welding machines. Based on the model, a high efficiency welding procedure was proposed, and the control program was designed.

针对目前国内大量使用的К型交流钢轨闪光焊机，根据焊接主回路等效电路建立了最大功率输出和高效焊接控制的数学模型，编制了过程控制程序。

An interface between controller and hydraulic system was designed in Simulink and AMESim, by which the eletro-hydraulic co-simulation was achieved. The result shows that the forecast controller exhibits excellent performance on eliminating synchronism of upsetting force in flash butt welding.

仿真模型中建立了AMESim软件和Simulink软件的通信接口，通过这个接口实现了基于AMESim/Simulink的电液联合仿真；仿真结果表明基于单神经元预测控制的同步误差调节器在消除顶锻阶段同步误差上具有明显的作用。

UN-25, 75 , 100-type flash method used for welding low carbon steel and non-ferrous metal butt parts.

UN-25、75、100型对焊机采用闪光法对接低碳钢及有色金属零件。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。