| SA335/P91钢管的焊接和热处理工艺性分析 |
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| 引用本文： | 石建材,李松.SA335/P91钢管的焊接和热处理工艺性分析[J].河北科技师范学院学报,2005,19(2):42-45. |
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| 作者姓名： | 石建材 李松 |
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| 作者单位： | 唐山信德锅炉集团有限公司,河北,唐山,063020 |
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| 摘 要： | 为确定240T/HCFB锅炉制造中直径D=325mm,壁厚b=30mmSA335/P91钢管的焊接工艺,进行了焊接试验。工艺条件:采用U型坡口,ER90S-B9焊丝,E9015-B9焊条,手工氩弧焊打底,焊条电弧焊盖面,250~350℃预热,焊后在300~400℃后热,保温2h。焊后热处理加热温度(750±20)℃,保温3h。经检测,焊缝性能符合《蒸汽锅炉安全技术监察规程》。
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| 关 键 词： | SA335／P91钢管 热处理 焊接 |
| 文章编号： | 1672-7983(2005)02-0042-04 |
| 修稿时间： | 2005年4月10日 |
Analysis of Welding and Heat Treatment Process of SA335/P91 Steel Pipe |
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| SHI Jian-cai,LI Song.Analysis of Welding and Heat Treatment Process of SA335/P91 Steel Pipe[J].Journal of Hebei Normal University of Science & Technology,2005,19(2):42-45. |
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| Authors: | SHI Jian-cai LI Song |
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| Abstract: | Welding experiments were done to assure the welding process for a D=325 mm,b=30 mm SA335/P91 steel pipe in a 240 T/H CFB boiler.The welding conditions were as follows:a U groove,ER90S-B9 welding wire and E9015-B9 covered electrode,using the GTAW backing welding method,with the filled and surface layer covered by SMAW.The pipes were preheated at 250350 for 2 hours;the post-heat was kept at 300400 for 2 hours,and the heat treatment was controlled at 75020 for 3 hours.The performance of the weld was tested to fit the standards demanded by the Supervision code of Safety and Technology for Steam Boilers. |
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| Keywords: | SA335/P91 heat treatment welding |
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