焊接

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。

The depth of groove resulting from trimming the internal flash of pipe shall not undercut the contour of the pipe by more than 0.4mm according to paragraph 7.8.7 of API 5L specification.

因裁切内部闪光焊接痕迹所致的焊接坡口深度应按 API 5L 中第7.8.7节下所规定的不可超过管道底部边缘0.4毫米。

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 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。

This article has mainly studied one kind improved two person two-sided synchronized GTAW craft for the austenite stainless steel. This craft makes the improvement in the original two person two-sided synchronized GTAW craft foundation which one time welding two-sides formings. A series of welding engineer testing on 8 mm SUS304 were carried on. The new craft could guarantee the welding quality in contrast with the original two person two-sided synchronized GTAW.

主要研究了一种改进了的奥氏体不锈钢的双人双面同步钨极氩弧焊工艺，此工艺是在原有的双人双面同步钨极氩弧焊工艺的基础上进行的改进，即将原有的一次焊双面成形改为两次焊成型，并在厚度为8 mm SUS304上进行了一系列焊接工艺试验，验证了这项新工艺与常规双人TIG双面焊相比，能保证焊接质量。

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。

Meanwhile, the microstructures and mechanical properties of friction welded drill pipes have been compared with those of hot-upsetting drill pipes.

试验结果表明，采用摩擦焊接及焊后调质热处理工艺制造的DZ60地质钻杆焊接接头的常规力学性能指标均高于地矿部DZ60地质钻杆管材的技术标准规定的数值，并优于采用现行热墩粗工艺制造的钻杆管材的力学性能数值。

Mechanical properties of the friction weld drill rod, which is guaranteed with the rational welding technology and the rational heat treatment technology, must meet the requirements of profession standards.

摩擦焊接钻杆要求其机械性能达到行业标准要求，钻杆焊后的机械性能是由合理的焊接工艺和正确的热处理工艺保证的。

A new view of characteristic zone of fusion welding joint is put forward through observations and researches of many fusion welding joints.

通过大量的熔化焊接头试样的观察和研究，提出了熔化焊接头特征区域划分新方案。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！