| 高温高压汽缸连接螺栓松弛评估新方法 |
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| 引用本文： | 蔡锌如.高温高压汽缸连接螺栓松弛评估新方法[J].江西电力职业技术学院学报,2003,16(1):1-3. |
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| 作者姓名： | 蔡锌如 |
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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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| 摘 要： | 针对火电厂常用高温高压螺栓材料25Cr2Mo1V钢常因松弛失效导致脆性断裂事故这一现象,从损伤力学观点出发,结合无损探伤理论,提出用超声波与声发射特性评估火电厂高温高压汽缸连接螺栓松弛损伤失效方法,并使所测损伤参变量实现量化。
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| 关 键 词： | 超声波 定量评估 火电厂 螺栓 松弛失效 |
| 文章编号： | 1008-6862(2003)01-0001-(03) |
| 修稿时间： | 2002年11月28 |
A New Method for Evaluating the Slack of Connecting Bolt in High Temperature and High Pressure Cylinders |
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| Abstract: | High temperature and high pressure bolt material steel-25Cr2Mo1V which is used widely in thermal power station. Due to its loose invalidation, often leads to brittleness fracture accident. Based on harm mechanics and integrated with nondestructive inspection theory. This paer proposes a solution which measure loose invalidation of bolt conjunctted high temperature and high pressure with ultrasonic and sound scatter character of harmed part, and quantitate the extend of damaged. |
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| Keywords: | ultrasonic quantitative estimate thermal power station bolt loose invalidation |
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