| 风力发电机连接螺栓断裂失效分析 |
| |
| 引用本文： | 徐君,陈纪东,李生初,杨航飞,胡水江,樊佳能.风力发电机连接螺栓断裂失效分析[J].工程与试验,2010,50(3):34-36,60. |
| |
| 作者姓名： | 徐君 陈纪东 李生初 杨航飞 胡水江 樊佳能 |
| |
| 作者单位： | 绍兴市质量技术监督检测院,浙江,绍兴,312071 |
| |
| 摘 要： | 某外资企业生产的风力发电机连接螺栓,使用很短时间即发生断裂失效,通过对断裂螺栓的断口宏观检查、金相组织的全面检验和开裂部位与非开裂部位的解剖对比分析,结果表明:螺栓断裂是由于淬火时形成了很深的裂纹;淬火裂纹的形成与冷速过快、表面脱碳及螺纹根部应力集中有关。
|
| 关 键 词： | 连接螺栓 表面淬火 表面脱碳 |
Fracture Failure Analysis on Connecting Bolts of Wind Generator |
| |
| Xu Jun,Cheng Jidong,Li Shengchu,Yang Hangfei,Hu Shuijiang,Fan Jianeng.Fracture Failure Analysis on Connecting Bolts of Wind Generator[J].ENGINEERING & TEST,2010,50(3):34-36,60. |
| |
| Authors: | Xu Jun Cheng Jidong Li Shengchu Yang Hangfei Hu Shuijiang Fan Jianeng |
| |
| Affiliation: | (Shaoxing Testing Institute of Quality Technical Supervision,Shaoxing 312071,Zhejiang,China) |
| |
| Abstract: | After using for a short time,fracture failures occur in the connecting bolts of wind generator which is made by a foreign capital corporation.Through the macro-fracture analysis,the distinguishing of metallographical structure and the comparative analysis for crack positions and non-crack positions,the results show that the fracture of bolts is due to the cracks in the quenching process.The reasons for the quenching cracks are the over-high cooling rate,the surface decarburization and the stress concentration in the thread root. |
| |
| Keywords: | connecting bolt surface quenching surface decarbonization |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
