| 磨煤机磨辊断裂失效分析 |
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| 引用本文： | 王建斌,毕虎才,高义斌. 磨煤机磨辊断裂失效分析[J]. 山西电力, 2012, 0(4): 45-47 |
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| 作者姓名： | 王建斌 毕虎才 高义斌 |
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| 作者单位： | 1. 大唐国际运城发电有限责任公司,山西运城044602
2. 山西电力科学研究院,山西太原030001 |
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| 摘 要： | 某电站磨煤机磨辊发生断裂，针对断裂磨辊进行化学分析、力学性能分析、金相分析，结果表明磨煤机磨辊断裂是典型的疲劳断裂失效，主要由于热处理工艺控制不当使组织性能达不到要求，在运行工况中产生表面损伤，在长期交变载荷作用下导致断裂失效。
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| 关 键 词： | 拉杆 断裂 失效 疲劳 |
Failure Analysis of Grinding Roller Rupture on Coal Pulverizer |
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| WANG Jian-bin,BI Hu-cai,GAO Yi-bin. Failure Analysis of Grinding Roller Rupture on Coal Pulverizer[J]. Shanxi Electric Power, 2012, 0(4): 45-47 |
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| Authors: | WANG Jian-bin BI Hu-cai GAO Yi-bin |
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| Affiliation: | 1.Datang International Yuncheng Power Generation Co.,Ltd,Yuncheng,Shanxi 044602,China; 2.Shanxi Electric Power Research Institute,Taiyuan,Shanxi 030001,China) |
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| Abstract: | Rupture occurred on the grinding roller of coal pulverizer in a power plant.Chemical analysis,mechanics property analysis and metallographic analysis were done to figure out the reason of rupture,and the results show that it was a typical fatigue failure.Unsuitable control of heat treatment led to substandardness of structure property so that rupture failure happened under long-term alternate load. |
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| Keywords: | grinding roller rupture invalidation fatigue |
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