| 储气塔阀门紧固螺栓的断裂分析 |
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| 引用本文： | 谷志刚,郝德中,李伟航. 储气塔阀门紧固螺栓的断裂分析[J]. 理化检验(物理分册), 2007, 43(3): 147-149,162 |
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| 作者姓名： | 谷志刚 郝德中 李伟航 |
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| 作者单位： | 辽宁工学院材料与化学工程学院,锦州,121001;锦州石化公司,锦州,121001 |
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| 摘 要： | 储气塔运行半年即发生了阀门紧固螺栓的断裂事故。采用化学成分分析、硬度测定、金相检验以及断口的宏、微分析等方法,对螺栓断裂原因进行了分析。结果表明,由于塔内腐蚀性介质的微量渗出,导致了阀门紧固螺栓的应力腐蚀断裂。
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| 关 键 词： | 紧固螺栓 脆性断口 应力腐蚀 断裂 |
| 文章编号： | 1001-4012（2007）03-0147-03 |
| 收稿时间： | 2006-08-22 |
| 修稿时间： | 2006-08-22 |
FAILURE ANALYSIS OF THE FASTENING BOLT OF THE VALVE ON THE GAS TOWER |
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| GU Zhi-gang,HAO De-zhong,LI Wei-hang. FAILURE ANALYSIS OF THE FASTENING BOLT OF THE VALVE ON THE GAS TOWER[J]. Physical Testing and Chemical Analysis Part A:Physical Testing, 2007, 43(3): 147-149,162 |
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| Authors: | GU Zhi-gang HAO De-zhong LI Wei-hang |
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| Affiliation: | 1.School of Material and Chemical Liaoning Institute of Technology, Jinzhou 121001, China;2.Jinzhou Oil and Chemicol Company, Jinzhou 121001, China |
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| Abstract: | Fastening bolts at valve on gas tower was cracked after used 6 months.The failure analysis of the bolt was made by chemical composition,hardness,microstrcture examination and macrostrcture,SEM,EDX analysis for the fracture.The results show that the stress crrosion,wich is duo to the less leaking of the crrosion media in tower,cause the fastening bolt of valve failure. |
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| Keywords: | Fastening bolt Brittle fracture Stress crrosion Crack |
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