Aimming at the safety of welding of long-distance pipeline, this paper analyzes the hazardous substance of welding process, and puts forward the relevant precautionary measures.
针对长输管道焊接过程出现的安全问题，分析了焊接过程中的有害因素，并就相关有害因素提出了防范措施。
The key in long-distance pipeline construction is welding process, long-distance pipeline construction quality is inextricably linked with quality control of welding process.
在长输管道工程施工中的关键是焊接过程，长输管道工程的施工质量好坏与焊接过程的质量控制是密不可分。
This welding process, with continuous welding wire feeding, fast deposit speed and quality welding pass, is especially suitable for long distance pipeline with large diameter and thick wall.
全位置自动焊接技术的特点是，焊丝可以连续送进，焊丝熔敷速度快，焊接质量较高，尤其适用于大口径、厚壁管的焊接。
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