查询词典 tack welding

The sepctrum structures and the differences between TIG and MIG welding arc are analysed.The corresponding relations between metal transfer and welding arc spectrum structure are pointed out especially.

通过分析得出了TIG焊电弧光谱空间分布的差异性和MIG焊电弧光谱空间分布的相似性，着重指出MIG焊电弧光谱与熔滴过渡之间存在密切关系。

Aiming at the toughness fluctuation of the high grade thick plate pipeline steel submerged arc welding.SEM and energy spectrum analysis had been used to analyze weld microstructure, appearance of impact fracture,composition segregation,weld inclusions,welding wire purity,etc..

针对这种高钢级厚板管线钢埋弧焊接条件下出现的焊缝韧性波动，采用SEM、能谱分析等对焊缝微观组织、冲击断口形貌、成分偏析、焊缝夹杂物、焊丝纯净度等进行了分析。

Results of experiments under different conditions show that, compared with arc electrical signal and arc light signal, arc spectrum signal is of more advantageous property. It can not only detect short-circuit metal transfer, but also more effectively detect droplet in free transfer mode than electrical signal. It can not only detect the droplet transfer in the CO〓 welding, but also can detect spray transfer in Ar welding with advantage over arc light signal. Especially, its outstanding capability of detecting steam spray transfer where other approaches fail, shows that are spectrum information has the utmost signal quality in metal droplet transfer detecting.

多种工艺条件下的对比实验表明，与电弧电信号及光强信号相比，电弧光谱信号具有更为优越的信号品质，其不仅可以检测熔滴短路过渡而且优于电信号可以有效地检测自由过渡；不仅可以检测活性气体保护条件下的熔滴过渡，而且优于光强信号可以检测惰性气体保护条件下的喷射过渡，特别是其可以实现熔滴射流过渡的检测，解决了这一用其它信号无法克服的难题，体现出电弧光谱信息在熔滴过渡研究中所独具的优越性。

Based on the theory of magneto-hydro dynamics and real welding conditions,a three-dimension united mathematical model of TIG welding arc and weld pool was established.

根据磁流体动力学理论以及焊接的实际情况，建立了三维TIG焊接电弧与熔池的统一数学模型，避免了对电弧以及熔池界面条件的假定，使得对焊接电弧与熔池行为的分析与实际情况更近了一步。

gas shielded arc welding ; gas in weld metal ; CO_2; welding current ; mathematical model

有人曾对Ar -CO2 混合气体保护下焊缝金属中的气体含量与被焊金属和焊接参

Keywords low carbon steel steel pipe weld argon arc welding welding wire research and development

低碳钢；钢管；焊接；氩弧焊；焊丝；研制

In the robots machining unit, because of the diversity and complexity of the welding parts, the arc welding robot cant weld the complicated part independently, this makes it necessary to have a teaching system that has teaching function.

在机器人加工单元中，由于焊接工件的多样性和复杂性，弧焊机器人不可能独立完成复杂工件的焊接，这就需要具有示教功能的示教系统。

In addition, more than 20 kW of high-power lasers for welding of more than 10 mm thick steel plate, as a result of higher heat input, low cooling rate, the degree of hardening of the weld with manual arc welding and gas close to Paul.

另外，使用超过 20 kW的大功率激光器来焊接10 mm 以上的厚钢板，由于输入热量更高，冷却速度变低，焊缝的硬化程度将与手工电弧焊和气保焊水平接近。

The weld arc property characteristic, weld microstructures and mechanical properties are researched systematically, by carrying out welding technology tests for many typical welding materials.

采用多种典型焊接材料，系统进行了外加纵向磁场对GTAW焊接电弧特性、焊缝组织和接头性能的试验研究。

I plant the production of welding equipment and cutting equipment SCR rectifier arc welder, SCR DC argon arc welding machine, AC arc welder, air plasma cutting machine and carbon dioxide gas shielded welder six series, more than 20 varieties.

我厂生产的焊接设备和切割设备可控硅整流弧焊机、可控硅直流氩弧焊机、交流弧焊机、空气等离子切割机和二氧化碳气体保护焊机等六大系列，二十多个品种。

We stopped by the old fashion ice cream parlor Manhattan Beach Creamery for some refreshment. The "No Shoes, No Shirt, No Problem" sign on the wall epitomizes the beach lifestyle.

我们去商店区的一家老式冰淇淋店坐坐，墙上挂著「没鞋，没上衣，没问题」的牌子完全捕捉了海滩生活的随性及风格。

"If therefore", argues Bellarmine we can offer our prayers and our satisfactions in behalf of those detained in purgatory, because we are members of the great body of Christ, why may not the Vicar of Christ apply to the same souls the superabundant satisfaction of Christ and his saints--of which he is the dispenser?

" "因此，如果"，认为贝拉明（德indulgentiis ，十四）"我们可以提供我们的祈祷和我们满意的代表那些被拘留在炼狱，因为我们是成员的伟大基督的奥体，为什麼可能不是牧师基督适用於同样的灵魂满意的过剩是耶稣和他的圣人-他是在配药？