查询词典 welding

Weld line is the key part of ERW steel pipe because the impact toughness of its raw material is multiple times higher than that of seamless steel pipes. The impact energy of weld line can reach 60% of the raw material by controlling impurity content in raw material, the height and direction of the burr, mold border shape, welding leg, welding speed, heating power and frequency, welding extrusion capacity, the depth and temperature of intermediate frequency, as well as air-cooled length. Seamlessness can be realized if further optimization methods are adopted.

由于ERW钢管母材的冲击韧性数倍于无缝钢管，焊缝处的冲击韧性是ERW钢管的关键，通过控制原材料杂质含量、纵剪毛刺高度与方向、成型边部形态、焊角、焊接速度、加热功率与频率、焊接挤压量、中频退伙温度与深度、空冷段长度等工艺参数保证了焊缝的冲击功达到母材的60%以上，如进一步优化，可实现焊缝冲击功接近母材，从而实现性能无缝化。

Ranslated Title: Thailand and Asia Seif - Professional Welding Machines - Welding Machine | Cutting Machine | Welding Materials | Labor | Tools ...

itle：泰亚赛福-专业焊接切割设备-焊接机|切割机|焊接材料|劳保产品|工具。。。

The results indicate that the welding temperature is the most important factor for diffusion welding of composite. When the welding temperature range is between solidus and liquidus, the peak joint strength can reach 170 MPa.

指出焊接温度是复合材料扩散焊接最重要的工艺参数，焊接温度介于基体合金固相线与液相线之间，接头强度最高值可达到170 MPa；接合界面的氧化膜阻碍基体原子的扩散，是复合材料接头强度下降的原因之一。

This model can be used to study thermal process of spring steel spot welding systematically,providing theoretical basis for designing spot welding technology parameters and numerical prediction of microstructure and properties of spring steel spot welding.

利用该模型可以系统地研究弹簧钢的点焊热过程，为正确选择点焊工艺参数提供了理论依据，并可进一步实现弹簧钢点焊接头组织及性能的数值预测。

The main loop of the welder uses a thyratron transistor non-contact switch circuit ,quick and reliable close time ,accurate timing of welding, high precision of welding ,good repeatability, bring a high quality welding.

焊机主回路采用晶闸管无触点开关电路，关断时间快、可靠，焊接定时精确，焊接精度高，重复性好，可实现高品质焊接。

Welding control system comprises hardware and software, using C language welding program, and it reduces difficulty of control system exploitation. Scheduling control, sampling disposal of feedback signals and digital PI modulation are achieved through program control, and this controls veraciously welding process.

焊接控制系统由硬件和软件两部分组成，焊接程序采用C语言编写，降低了控制系统软件开发的难度，通过程序控制实现时序控制、反馈信号的采样处理及数字PI调节，对焊接过程进行准确的控制。

Based on the developed variable polarity TIG welding power supply ,it establishes variable polarity TIG welding arc multi-information measuring and processing system by adopting memory oscilloscope,high speed video-recorder?spectrograph?welding arc dynamic analyzer and computer.

以研制的变极性TIG 焊接电源为实验平台，采用记忆示波器、高速摄像仪、光谱分析仪、焊接电弧动态分析仪，建立起变极性TIG焊接电弧多信息测试分析系统，同时采集焊接电流、电弧电压、电弧形态和电弧光谱等重要信息，并基于VisualC++语言开发的软件系统对采集的各种信息进行融合及分析。

The weldability of aluminium and copper and the welding characteristic of fiction welding and cold pressure welding have been analyzed.

对铝和铜的焊接性能，及摩擦焊和冷压焊的焊接特点进行了分析。

Choose small diameter welding rod and adopt low current slow welding to reduce the welding stress

选择小直径焊条及采用小电流慢焊速的焊接规范，减小焊接应力的产生

This article introduced the automatic welding technology and equipment of American CRC-Evans Corporation which are using in our country, the automatically system of the double welding torch ,welding craft and application situation of the project.

介绍了在我国应用的美国CRC-Evans公司的自动焊技术和设备，及其双焊矩自动焊系统的焊接工艺和工程应用情况。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。