主回路冷却系统的窄间隙焊接及其应用。
Narrow gap welding and its applications in primary cooling systems.
介绍了钻铤钢管的结构特点、焊接修复的意义，以及窄间隙焊接工艺与设备。
The structural characters of steel pipe drilling rod, the signification of welding repair for the rods and the narrow gap welding process and equipment are introduced in the paper.
就目前的技术水平而言，国内的哈尔滨焊接研究所的双丝埋弧窄间隙焊接技术较为被市场所认可。
On the current technical level, the double wire submerged arc narrow groove welding technology invented by Harbin welding Institute was recognized by the market.
窄间隙焊接是将常规的焊接工艺与窄间隙坡口结合在一起，通过专门的装置和控制技术而集成的一种新型焊接技术。
Narrow gap welding is a new welding technology, in which unusual welding technique and narrow gap are integrated with the special equipment and control technology.
窄间隙焊接是把常规的焊接工艺与窄间隙坡口结合在一起，通过专门的装置和控制技术而集成的一种新型焊接技术。
Narrow gap welding is a new welding technology, in which unusual welding technique and narrow gap are intergrated with the special equipment and control technology.
在该系统中，焊丝穿过电机的空心轴后从导电嘴的偏心孔送出，电机带动导电杆和偏心导电嘴旋转，从而使焊丝端部的电弧以一定直径高速旋转，以保证窄间隙焊接接头具有足够的侧壁熔深。
The hollow-axis motor drives the offset nozzle and rotates the arc on the tip of wire at high speed, so as to ensure enough penetration into the sidewalls in narrow gap welding.
窄间隙MIG焊(熔化极气体保护焊)是一种先进的高质量焊接方法。
Narrow gap MIG welding is an advanced welding technic with high quality.
讨论了窄间隙深槽打底焊焊接方法和工艺，认为用手工氩弧焊进行单面深槽打底焊效果最好。
Welding methods and technology of narrow gap quirk backing weld were discussed. Indirect quirk backing weld using manual hydrogen arc welding is considered as the best result.
介绍了窄间隙焊的特点，对坡口形式的确定、埋弧焊剂的筛选、焊接工艺参数的选择进行了详细分析。
Introduces the feature of the narrow gap welding, and analyses how to determine the form of groove, screen out submerged-arc welding flux and choose welding condition in detail.
发现超窄间隙焊的焊接电压范围在21 ~24v，电流在210 ~ 270a能够得到较好的焊缝成形。
When welding voltage is between 21v and 24v and welding current is between 210a and 270a, better welding line can be obtained.
采用先进的双丝窄间隙埋弧焊设备和专用焊接工艺，成功地焊接了大厚壁高压蓄势器，质量检查全部合格。
An advanced double wires narrow gap SAW technique, equipment and special procedure have been used to weld high pressure storage tanks successfully with high quality welding joints.
在厚壁管、压力容器及电站锅炉的窄间隙全位置焊接中，钨极运动轨迹是动态的。
The synthesizing control scheme is put forward based on the requilement of narrow-gap all-position welding technology in terms of the moving track of tungsten electrode.
在厚壁管、压力容器及电站锅炉的窄间隙全位置焊接中，钨极运动轨迹是动态的。
The synthesizing control scheme is put forward based on the requilement of narrow-gap all-position welding technology in terms of the moving track of tungsten electrode.
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