The method mainly comprises back welding and front welding.
该方法主要包括反面焊接、正面焊接。
Segmental back welding is adopted for each welding seam to minimize the residual stress and deformation of welding.
每条焊缝采用分段退焊法，减小焊接残余应力和变形。
Welding flash damages, moving back space and resetting distance can be adjusted freely.
焊接闪光烧损量、退回距离及复位距离都可自由调整。
The results indicate that defect free joints with excellent appearance could be acquired by continuous laser welding with flowing helium from top and back sides.
研究结果表明，连续激光氦气双面保护可以获得保护效果可靠、无缺陷、成型良好的焊接接头。
Flux-cored wire is applied to the austenitic stainless steel pipe by back weld, MAG for the filling and cosmetic weld, at horizontal fixed round welding vertically up.
采用药芯焊丝对奥氏体不锈钢管道进行打底焊接，MAG焊填充及盖面焊，立向上的水平固定全位置焊接。
The cooling water jackets are arranged on the welding torch from the front part to the back part.
在焊炬上从前部到后部均设有冷却水套。
A cut-off wheel is useful for grinding back any excess welding buildup at the tacks.
可以用切割轮打磨掉突出的粗大焊缝。
The method adopts visual sensor monitoring and captures images of field of welding temperature of back of weld.
该方法利用视觉传感来对焊缝背面焊接温度场热图像进行实时检测及处理，从而达到控制焊缝熔透的目的。
The research of back chipping can be basis of processes planning and technology parameters optimization. Meanwhile, it will be a theory foundation for the subsequent welding.
清根规律的研究，不仅能够为工艺制定和优化清根工艺参数提供依据，也为后续焊接过程做好基础理论准备。
Therefore, the law of welding seam back chipping was studied based on the newly developed automatic back chipping machine with a disk-type non-consumable electrode.
因此，本文基于新研制的非熔化盘式电极自动清根技术，对焊缝清根规律进行了研究。
Based on the combustion characteristics of oxyhydrogen flame, a new flash-back arrestor faced on oxyhydrogen flame applied for oxyhydrogen welding and cutting equipment is designed.
基于氢氧焰的燃烧特性，设计了一种用于氢氧焊割设备的新型氢氧焰回火防止器。
This welding backing is used with all one-side processes. Especially for those which do not demand back bead cleaning.
本衬垫可用于各种单面焊接工艺的位置，特别适用于不一定要求封底焊道的场合。
The utility model can reduce the strength and speed of a descending welding head to a frame surface, and the utility model efficiently overcomes chip incline caused by poor back flowing of lead tin.
本实用新型可减缓焊头下降到达框架表面的力量和速度，有效地克服由于铅锡回流不良而引起的芯片倾斜。
The invention is used for automatic air gouging back gouging of the straight welding line and the girth welding line of the large cylindrical welding structure.
本发明用于大型圆筒形焊接结构的直焊缝和环行焊缝自动气刨清根。
The quality of back chipping is not only in relation to the quality of final welding seam, but also the schedule and cost of the whole project.
清根质量好坏不仅关系到焊缝的最终质量，同时还影响工程的进度和成本。
Some technological problems such as precision of antenna ca-liber, one-side welding with back formation, etc. were solved. EBW procedure of pyramidal horn antenna was applied successfully.
解决了喇叭口径精度、单面焊双面成形等技术难点并成功应用于产品。
Some technological problems such as precision of antenna ca-liber, one-side welding with back formation, etc. were solved. EBW procedure of pyramidal horn antenna was applied successfully.
解决了喇叭口径精度、单面焊双面成形等技术难点并成功应用于产品。
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