文档介绍：摘要
X80管线钢管道是目前世界管道中真正进入工程建设用的最高钢级管道,本文首先全面分析了国内外油气管道及X80管线钢管道的发展、应用和焊接技术状况。然后对X80级管线钢进行了焊接性分析,其次研究了X80管线钢管道现场焊接的工艺方案。本论文共提出三种焊接工艺方案:即焊条电弧焊、STT根焊+自保护药芯焊丝半自动焊和全自动焊,并对三种焊接工艺实验结果进行分析,得出全自动焊方案比较适合西气东输现场管道焊接,最后,将自动焊方案运用于现场X80管线钢管道环焊缝焊接。
吸收和借鉴国内外先进的工艺设计理念,提出了一套自己的X80管线钢管道焊接施工方案,包括施工准备、运管步管,管道组对,焊接设备选取、焊材选择、坡口加工、工装应用和焊接工艺参数的确定等一系列工作。这一系列工作是在已有生产实际的基础之上,加以改进的。对X80管道焊接有一定的指导意义。
关键词: X80管线钢接性接方法焊缝焊接工艺
ABSTRACT
X80 pipe steel pipe in the world is now truly into construction with the highest level of steel pipe, this prehensively analyzed the gas pipeline and the development of pipeline steel X80 and welding technology and application situation. Then to X80 pipe steel grade weldability analysis, X80 pipeline steel pipe of the second field welding technology program,This paper made a total of three welding programs:SMAW, STT root welding + self shielded flux cored wire semi-automatic welding and automatic welding,Three welding process and analysis of experimental parison of automatic welding solutions obtained for natural gas on-site pipe welding, and finally, the program will automatically be applied to on-site X80 pipeline steel welded pipeline girth welds。
Absorb and learn from the advanced technology design concept, a set of X80 pipeline steel pipe welding their construction plan, Including the construction preparation, transport tube steps, tubes group, welding equipment selection, welding materials selection, groove machining, tooling, applications and the determination of welding parameters and a series of work,Work is already in this series based on actual production, to be improved. X80 pipeline welding on a certain significance。朗读显示对应的拉丁字符的拼音
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Key words: oil and gas pipeline;welding X80 pipe;welding method of steel welded;welding process
目录
摘要 1
ABSTRACT II
1 绪论 1
1
X80管线钢的发展与现状 2
X80管线钢的焊接发展现状 3
4
4
2 X80管线钢焊接性分析 5
5
X80焊接性分析 7
3 X80管线钢焊接工艺研究 10
焊接方法选择原则 10