| 双金属复合管焊接技术分析 |
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| 引用本文： | 李发根,孟繁印,郭霖,常泽亮.双金属复合管焊接技术分析[J].焊管,2014(6):40-43. |
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| 作者姓名： | 李发根 孟繁印 郭霖 常泽亮 |
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| 作者单位： | [1]中国石油集团石油管工程技术研究院石油管工程重点实验室,西安710077 [2]中国石油塔里木油田公司,新疆库尔勒841000 [3]西安向阳航天材料股份有限公司,西安710025 |
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| 摘 要： | 双金属复合管的焊接接头结构复杂,焊接难度较大。通过对双金属复合管端面处理工艺和对接焊接工艺分析,提出了端部堆焊工艺较端部封焊工艺易于焊接但不够经济的现状,指出对于薄壁小直径双金属复合管道的焊接宜采用合金焊丝对接焊工艺,而对于厚壁大直径双金属复合管道则宜采用过渡焊方法焊接。另外,还分析了当前的焊接评定标准,强调了制定适宜复合管的焊接工艺评定标准的必要性。
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| 关 键 词： | 焊接 双金属复合管 端面处理 对接焊接 焊接工艺评定 |
Analysis of Welding Technology about Bimetal-lined Pipe |
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| LI Fagen,MENG Fanyin,GUO Lin,CHANG Zeliang.Analysis of Welding Technology about Bimetal-lined Pipe[J].Welded Pipe and Tube,2014(6):40-43. |
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| Authors: | LI Fagen MENG Fanyin GUO Lin CHANG Zeliang |
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| Affiliation: | 1. CNPC Tubular Goods Research Institute, OCTG Engineering Key Laboratory,Xi ＇an 710077, China; 2. PetroChina Tarim Oilfield Company, Korla 841000 ,X injiang, China; 3. X i ＇ an Sunward Aerospace Material Co. ,Ltd. ,X i ＇ an 710025, China) |
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| Abstract: | The welded joint structure of bimetal-lined pipe is complex and is difficult to be welded. Through analysis on pipe end treatment and butt welding procedure for bimetal-lined pipe, it indicated the overlaying was easy to weld but not to be economic comparing with seal welding, it also pointed out that alloy wire butt welding might be used to weld thin wall and small diameter bimetal-lined pipes, while for thick wall and large diameter pipes the buffer layer welding method can be used. Additionally, the existing standards about welding procedure qualification were analyzed in the paper, and the necessity of drafting welding procedure qualification standard about bimetal-lined pipes was emphasized. |
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| Keywords: | welding bimetal-lined pipe pipe end treatment butt welding welding procedure qualification |
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