| 张河湾抽水蓄能电站蜗壳焊接问题分析 |
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| 引用本文： | 张安旭.张河湾抽水蓄能电站蜗壳焊接问题分析[J].电力建设,2007,28(6):0-0. |
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| 作者姓名： | 张安旭 |
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| 作者单位： | 中国水利水电第四工程局机电安装分局,甘肃省兰州市,730060 |
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| 摘 要： | 针对张河湾抽水蓄能电站1 号机蜗壳安装中出现的间隙、错牙偏大、坡口型式不符合要求及焊接中容易产生裂纹等问题, 采取了一些针对性的焊接措施和施工工艺, 如焊接设备及材料的选择、焊缝坡口型式的制定等, 使蜗壳焊缝超声波探伤一次合格率达99.9%, 着色探伤一次合格率达100%, 确保了蜗壳的焊接质量。
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| 关 键 词： | 蜗壳 缺陷处理 高强钢焊接 焊接工艺 |
| 文章编号： | 1000-7229（2007）06-0084-03 |
| 收稿时间： | 2010-01-25 |
| 修稿时间： | 2007-03-05 |
Analysis of Spiral Casing Welding in Zhanghewan Pumped-Storage Power Station |
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| ZHANG An-xu.Analysis of Spiral Casing Welding in Zhanghewan Pumped-Storage Power Station[J].Electric Power Construction,2007,28(6):0-0. |
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| Authors: | ZHANG An-xu |
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| Affiliation: | Mechanical and Electric Engineering Branch, Sino Hydro Engineering Bureau 4, Lanzhou 730060, China |
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| Abstract: | Aiming at problems of the No.1 unit spiral casing installation in Zhangjiawan pumped-storage power station, such as large clearances and mismatches, groove type failing to meet requirements, and cracking during welding, etc., some measures and techniques, such as welding equipment and material selection, bevel edge setting, etc., are applied, resulting in 99.9% and 100% first-time passing rate in ultrasonic inspection and dye penetrate inspection, respectively, which insures the spiral casing welding quality. |
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| Keywords: | spiral casing defect treatment high strength steel welding welding process |
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