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| 汽轮机高压主汽门螺栓断裂失效分析 | |
| 引用本文： | 马国林,孙永莹,乔立捷,王吉升,安江英.汽轮机高压主汽门螺栓断裂失效分析[J].华北电力大学学报,2009,36(3). |
| 作者姓名： | 马国林 孙永莹 乔立捷 王吉升 安江英 |
| 作者单位： | 1. 中国电力投资集团,北京,100032 2. 华北电力大学,能源与动力工程学院,北京,102206 3. 抚顺发电有限责任公司,辽宁,抚顺,113000 |
| 摘 要： | 采用宏观检验、紧固工艺分析、化学成分分析、力学性能试验、金相检验和断口分析等对抚顺发电有限责任公司1号机组高压主汽门断裂螺栓进行了失效分析,结果表明:螺栓硬度偏低,断口附近金相组织存在偏析且有混晶现象,断口边缘有蠕变空洞及裂纹,断裂从螺栓根部向另一侧扩展,无明显塑性变形属于蠕变脆性断裂。 |
| 关 键 词： | 汽轮机 主汽门 螺栓 断裂 失效分析 |
Analysis of bolt fracture failure for high-pressure main stop valve of turbine |
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| MA Guo-lin,SUN Yong-ying,QIAO Li-jie,WANG Ji-sheng,AN Jiang-ying.Analysis of bolt fracture failure for high-pressure main stop valve of turbine[J].Journal of North China Electric Power University,2009,36(3). | |
| Authors: | MA Guo-lin SUN Yong-ying QIAO Li-jie WANG Ji-sheng AN Jiang-ying |
| Affiliation: | 1.China Power Investment Corporation;Beijing 100032;China;2.Department of Power Engineering;North China Electric Power University;Beijing 102206;3.Fushun Power Plant;Fushun 113000;China |
| Abstract: | By means of macroscopic inspection,fastening technology analysis,chemical composition analysis,mechanical performance test,metallographic examination,and fracture surface analysis etc.,the bolt fracture failure of high-pressure main stop valve for steam turbine no.1 in FuShun Power Generation Co Ltd has been analysed,the results show that the hardness of the bolt to be lower,the metallographic structure of fracture surface to be segregated,the grain size to be uneven,a mass of creep cavities to be existed i... |
| Keywords: | team turbine main stop valve bolt fracture Failure Analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |