| F91锻钢阀焊接热影响区硬度异常的分析与处理 |
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| 引用本文： | 朱正杰,王璐,沈兴伟,黄建林,柯伟芳.F91锻钢阀焊接热影响区硬度异常的分析与处理[J].阀门,2022(1). |
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| 作者姓名： | 朱正杰 王璐 沈兴伟 黄建林 柯伟芳 |
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| 作者单位： | 上正阀门集团有限公司;浙江迈瑞科阀门有限公司;保一集团有限公司 |
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| 摘 要： | 针对火电厂管道用F91材质阀门与管道焊接相邻处存在硬度降低问题进行分析,确定了故障位置及原因,改进了阀门焊接与现场施焊工艺,阀门硬度达到标准要求。经验证,改进后焊接热影响区没有出现硬度降低问题,阀门运行良好。
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| 关 键 词： | F91钢 阀门 焊接 热影响区 硬度 |
Analysis and Treatment of Hardness Abnormality in Welding Heat Affected Zone of F91 Forged Steel Valve |
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| ZHU Zheng-jie,WANG Lu,SHEN Xing-wei,HUANG Jian-lin,KE Wei-fang.Analysis and Treatment of Hardness Abnormality in Welding Heat Affected Zone of F91 Forged Steel Valve[J].Valve,2022(1). |
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| Authors: | ZHU Zheng-jie WANG Lu SHEN Xing-wei HUANG Jian-lin KE Wei-fang |
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| Affiliation: | (Sungo Valves Group Co.,Ltd.,Wenzhou 325105,Zhejiang,China;ZHEJIANG MARCO VALVE Co.,Ltd.,Wenzhou 325105,Zhejiang,China;Baoyi Group Co.,Ltd.,Wenzhou 325105,Zhejiang,China) |
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| Abstract: | In this paper,the hardness of F91 material valve used for pipeline in thermal power plant is analyzed at the adjacent place of pipe welding,the fault location and reason are determined,the valve welding and field welding process is improved,and the valve hardness reaches the standard requirements.It has been proved that there is no hardness reduction in the heat affected zone of welding after improvement,and the valve runs well. |
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| Keywords: | F91 steel valve welding heat affected zone hardness |
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