查询词典 gas welding equipment

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。

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。

The feeding speed of shifting unit of welding machine is one of the most important factors of rail continuous flash welding quality.

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。

It is introduced the technological features and experimental research of pulse flash welding process using domestic-made K 900 rail welding machine .

进行了国产K900钢轨焊机脉动闪光焊接工艺的试验研究；介绍了脉动闪光焊接的工艺特点和应用前景。

The " flash" welding of thermocouples is a fusion or arc welding process, where enough electrical

闪光焊接热电偶是一个熔融或电弧焊接过程，在焊接点会释放出足够的电能，从而熔化需要焊接的材料。

Experiments were conducted on a К900 rail flash welding machine by setting different welding currents at high voltage stages to determine the time at this stage.

采用К900钢轨焊机设置不同的高压阶段焊接电流进行试验，以测量在相同烧化量时的高压阶段时间。

In this paper, according to the endless rolling technology requirements, some key technologies for movable flash welding machine such as the precision control of the hydraulic systems, the main power circuit design and synchronous control of welding machine walking system are studied further.

本文针对无头轧制技术的要求，对移动式闪光焊机的关键技术—液压系统精确控制，大功率主电路设计以及焊机行走系统的同步控制进行了深入的研究。

The results show that : basic manufactured tank, welders were no longer needed in Tooling process, the cutting process is not strictly adhered to. Defects generated through the floor to form oil leakage is the main reason production base metal microstructure revealed the existence of a more serious segregation, makes steel welding performance is changing for the worse. Failure welding defects as easily lead to hidden dangers.

结果表明：油罐基本制造完成后，焊工在切除不再需要工装过程中，不严格遵守切割工艺，所产生的底板贯穿性缺陷是形成油罐泄漏的主要原因，金相显示制作母材中存在着较严重的偏析，使得钢材的焊接性能变得较差，容易引起焊接缺陷成为失效隐患。

The hidden welding of box frame member's dummy plate should use Electro-slag Welding.

箱型构件中隔板的隐蔽焊接，需采用电渣焊焊接。

It is suggested that TDS can be used as a new method for the analysis of pedogenesis and climatic change.

总之，热处理过程中磁化率的变化能非常灵敏地反映磁性矿物的转化情况，而且，这种转化往往与样品所经历的土壤化作用强度密切相关，因此，TDS可做为分析成土作用强度和古气候变化的一种新方法。

Therefore, in this chapter, I will research into the conflict and contradiction of the paternity. Also, in this novel, the father's behavior of "He who loves well chastises well." is quite suspicious, one of the reasons is that the father thought his son belonged to him. And then, this thesis quoted Lacan's theory to touch upon that someone who has accepted the concept of patriarchal society, he will be influenced for his whole life. That also reveals that human being has no choice sometimes in this society.

因此本章会先就父子关系的冲突与矛盾做深入的探讨，小说中的父亲似有对儿子爱之深责之切的行为，其原因可能在於父亲将儿子视为所有物所致；其次，论文将引用拉冈相关理论，讨论在父权社会中，不论身分为何，只要是已受父权社会观念根深蒂固影响的人物，终生都将受其所苦，此也揭示出人生存於社会上的无奈。