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1·The problems of the peculiarities of arc welding and the estimation of weld quality are discussed.

主要考虑了弧焊特性的提取以及焊接质量的估计。

2·The plasma arc welding have a high energy density, thick welding thickness that can weld for single time.

等离子弧焊具有能量密度高，一次性可焊厚度大等优点。

3·Produced stress concentration if weld reinforcement too large for submerged arc welding, so it should be control.

埋弧自动焊焊缝余高过大会对压力容器产生应力集中的影响，因此应加以控制。

4·Keyhole stability during plasma arc welding welding process is critical to the process stability and weld quality.

在穿孔等离子弧焊接过程中，小孔稳定性对焊接过程的稳定和优质的焊缝成形是非常关键的。

5·Regarding to submerged arc weld multi-pass weld track and height of weld gun, two-dimension track system is designed.

针对埋弧焊多道焊的焊缝跟踪以及焊枪高度跟踪问题，设计了一种二维跟踪系统。

6·The experimental results and application effects of weld toughness of spirally submerged arc welded pipe are introduced.

本文介绍了埋弧焊钢管焊缝韧性试验研究的结果及工业生产应用效果。

7·This paper presents a new developed system that can automatically plan welding path of space weld for arc welding robot.

开发了面向空间焊缝的弧焊机器人焊接路径自动规划系统。

8·The etched section also reveals that multiple weld passes were made over the top of the original submerged arc weld pass.

从酸蚀断面还可以看出：在原自动埋弧焊的上面覆盖有多层焊道。

9·CO2 gas shielded arc welding is widely used in production, but the spatter produced in the weld process badly affects the quality of weld.

CO2气体保护焊是广泛应用在生产中的焊接方法，但因为焊接时飞溅过大影响了焊接质量。

10·The utility model relates to an automatic arc blocking device for electric and arc weld, which belongs to the photoelectric control field.

本实用新型涉及一种电、氧焊自动挡弧装置，它属于光电控制领域。