| 大坝发电厂GH4145/SQ汽缸螺栓断裂原因分析 |
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| 引用本文： | 徐贤,刘励,吴国忠,赵惠萍,夏福庆.大坝发电厂GH4145/SQ汽缸螺栓断裂原因分析[J].宁夏电力,2005(4):31-33. |
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| 作者姓名： | 徐贤 刘励 吴国忠 赵惠萍 夏福庆 |
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| 作者单位： | 宁夏电力科技教育工程院,银川市,750002;宁夏大坝发电有限责任公司,青铜峡市,751607 |
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| 摘 要： | 通过对大坝发电厂#3、#4汽轮机汽缸18条断裂螺栓、1条未断裂螺栓及2条备品螺栓进行的综合分析，指出GH4145/SQ材质的汽缸螺栓断裂的主要原因为原材料存在冶金缺陷，其材质不良对螺栓的断裂有促进作用。提出了机组运行及检修应注意的问题及改进措施。
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| 关 键 词： | 螺栓 断裂 GH4145/SQ 粗晶 夹杂物 |
| 文章编号： | 1672-3643（2005）04-0031-03 |
| 收稿时间： | 2005-03-28 |
| 修稿时间： | 2005年3月28日 |
The analysis of GH4145/SQ cylinder bolt breaking of Daba Power Plant |
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| XU Xian,LIU Li,WU Guo-zhong,ZHAO Hui-ping,XIA Fu-qing.The analysis of GH4145/SQ cylinder bolt breaking of Daba Power Plant[J].Ningxia Electric Power,2005(4):31-33. |
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| Authors: | XU Xian LIU Li WU Guo-zhong ZHAO Hui-ping XIA Fu-qing |
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| Affiliation: | XU Xian, LIU Li, WU Guo-zhong, ZHAO Hui-ping, XIA Fu-qing ; 2.Daba Power Generation Co. Ltd. ) |
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| Abstract: | By comprehensive analyzing eighteen pieces of breaking bolts, one piece of unbroken bolt and two pieces of spare bolts of No.3 and No.4 turbine units in Daba Power Plant, points out the main reason of GH4145/SQ cylinder bolt breaking is that raw materials have metallurgic defects, and it is the inferior materials to quicken bolts breaking, puts forward some attentive issues and improvement measures of units operation and repair. |
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| Keywords: | bolt break GH4145/SQ coarse crystal inclusion |
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