| 热煨弯管产生裂纹的原因分析 |
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| 引用本文： | 曹晓燕,李天雷,罗光文.热煨弯管产生裂纹的原因分析[J].天然气与石油,2011,29(1):59-62,9. |
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| 作者姓名： | 曹晓燕 李天雷 罗光文 |
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| 作者单位： | 1. 中国石油集团工程设计有限责任公司西南分公司,四川,成都,610017;中国石油天然气集团公司石油管力学和环境行为重点实验室四川研究室,四川,成都,610017
2. 中国石油天然气股份有限公司西南油气田公司川东北高含硫项目部,四川,成都,610051 |
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| 摘 要： | 针对某容器厂在热煨弯管推制过程产生裂纹现象，进行裂纹产生原因分析。通过对弯管的化学成分、金相组织以及裂纹开裂处的微区能谱分析，发现由于弯管局部存在富Cu相，易发生铜脆现象，弯管产生裂纹。
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| 关 键 词： | 热煨弯管 裂纹 能谱分析 铜脆 |
Analysis on the Reasons Causing Cracks in Hot Bends |
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| Cao Xiaoyan,Li Tianlei,Luo Guangwen.Analysis on the Reasons Causing Cracks in Hot Bends[J].Natural Gas and Oil,2011,29(1):59-62,9. |
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| Authors: | Cao Xiaoyan Li Tianlei Luo Guangwen |
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| Affiliation: | Cao Xiaoyan,Li Tianlei(China Petroleum Engineering Co.,Ltd.Southwest Company,Chengdu,Sichuan,610017,China)Cao Xiaoyan,Li Tianlei(Research Office of Sichuan,CNPC Oil Pipeline Mechanic and Environmental Behavior Key Laboratory Chengdu,China)Luo Guangwen(PetroChina Southwest O&G Field Company CDB High Sour Gas Field Development Project Department,610051,China) |
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| Abstract: | Analyzed are causes of crack formation in hot bend fabrication of certain vessel plant.Through analysis on chemical composition and microstructure in bends and micro-area energy spectrum analysis on their cracks,it is found that cracks in hot bends result from local rich Cu phase and copper brittleness in the hot bends.Therefore,their local rich Cu phase and copper brittleness shall be reduced as far as possible in order to reduce or avoid cracking. |
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| Keywords: | Hot bend Crack Energy spectrum analysis Copper brittleness |
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