| 用超声波评估火电厂汽缸螺栓松弛损伤失效 |
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| 引用本文： | 蔡锌如,章国顺,杨杉,熊先仁.用超声波评估火电厂汽缸螺栓松弛损伤失效[J].江西科学,2003,21(1):30-33. |
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| 作者姓名： | 蔡锌如 章国顺 杨杉 熊先仁 |
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| 作者单位： | 江西电力职业技术学院,江西,南昌,330032 |
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| 基金项目： | 江西省电力工业局资助项目. |
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| 摘 要： | 针对火电厂常用高温高压螺栓材料25Cr2MolV钢常由于松驰失效导致脆性断裂事故，本文从损伤学观点出发，结合无损探伤理论，提出用超声波与声发射特性评估火声厂高温高压汽缸连接螺栓松驰损伤失效方法，并使所测损伤参数量实现量化。
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| 关 键 词： | 超声波 定量评估 火电厂 螺栓 松驰失效 |
| 文章编号： | 1001-3679(2003)01-0030-04 |
| 修稿时间： | 2002年12月6日 |
Measuring Loose Invalidation of Cylinder Bolt with Ultrasonic in Thermal Power Plant |
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| CAI Xin_ru,ZHANG Guo_shun,YANG Shan,XIONG Xian_ren.Measuring Loose Invalidation of Cylinder Bolt with Ultrasonic in Thermal Power Plant[J].Jiangxi Science,2003,21(1):30-33. |
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| Authors: | CAI Xin_ru ZHANG Guo_shun YANG Shan XIONG Xian_ren |
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| Abstract: | High temperature and hign pressure bolt material Steel_25Cr2MolV has been used widely in thermal power plant.Due to its loose invalidation,it often leads to brittleness fracture accident.Based on damage mechanics and integrated with nondestructive inspection theory,this paper proposes a solution which measures loose invalidation of bolt conjunctted high temperature and high pressure with ultrasonic and sound scatter character of harmed part,and quantitate the fact of damage. |
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| Keywords: | Ultrasonic Quantitative estimate Thermal power plant Bolt Loose invalidation |
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