| 过热器管异种钢焊接接头早期失效的调查分析 |
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| 引用本文： | 梁军,李青. 过热器管异种钢焊接接头早期失效的调查分析[J]. 华北电力技术, 2006, 0(7): 48-50 |
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| 作者姓名： | 梁军 李青 |
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| 作者单位： | 山西电力科学研究院,山西,太原,030001;山西电力科学研究院,山西,太原,030001 |
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| 摘 要： | 针对1 650 t/h锅炉过热器管珠光体/奥氏体异种钢焊接接头早期失效进行了失效分析和调查研究。结果表明:早期失效的主要原因是焊接接头存在严重的焊接缺陷及采用的焊接材料不当,在运行过程中由于高温、应力、腐蚀等因素影响而形成裂纹,由此引发异种钢接头早期失效。
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| 关 键 词： | 失效分析 异种接头 过热器 |
| 文章编号： | 1003-9171(2006)07-0048-03 |
| 收稿时间： | 2006-07-18 |
| 修稿时间： | 2006-07-18 |
Inquiry and Analysis on Early Failure of Dissimilar Metal Weld Joint in Superheater |
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| Liang Jun,Li Qing. Inquiry and Analysis on Early Failure of Dissimilar Metal Weld Joint in Superheater[J]. North China Electric Power, 2006, 0(7): 48-50 |
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| Authors: | Liang Jun Li Qing |
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| Affiliation: | Shanxi Electric Power Research Institute,Taiyuan 030001 ,China |
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| Abstract: | In this paper,the early failure of pearlitel austenite dissimilar metal weld joint is superheater of(1 650) t/h boiler is studied and analyzed.Acording to the results,the steel weld joint with serious weld defects and the improper material adopted is prone to produce cracks under the influence of high temperature,stress,corrosion during the running process. |
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| Keywords: | failure analysis dissimilar metal joint superheater |
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