| 带防腐层在役压力容器表面磁粉探伤灵敏度的试验研究 |
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| 引用本文： | 王彤.带防腐层在役压力容器表面磁粉探伤灵敏度的试验研究[J].洛阳工业高等专科学校学报,2008,18(1). |
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| 作者姓名： | 王彤 |
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| 作者单位： | 河南省锅炉压力容器安全检测研究院,河南,郑州,450004 |
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| 摘 要： | 采用人工裂纹试样的方法,模拟压力容器涂刷油漆防腐层的状况进行磁粉探伤,得出了油漆防腐层厚度与裂纹检出灵敏度的定量关系;结合CVDA<压力容器缺陷评定>规范,探讨了试验方法对一般在役压力容器带有油漆的情况下进行磁粉探伤检验的可行性.研究表明:采用交流磁化法进行探伤,当漆层厚度小于250 μm时灵敏度影响较小,同时亦表示不宜使用直流磁化方法.该结论对承受低应力工况条件下的压力容器安全质量检验和评估有重要参考价值.
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| 关 键 词： | 压力容器 防腐层 磁粉探伤 缺陷评定 |
Experimental Study on Sensitivity of Magnetic Probe for In-service Pressure Vessel Coated with Anti-Corrosive Layer |
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| WANG Tong.Experimental Study on Sensitivity of Magnetic Probe for In-service Pressure Vessel Coated with Anti-Corrosive Layer[J].Journal of Luoyang Technology College,2008,18(1). |
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| Authors: | WANG Tong |
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| Institution: | WANG Tong ( Henan Boiler & Pressure Vessel Safety Inspection Institute,Zhengzhou 450004,China) |
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| Abstract: | By means of artificial crack sampling method, magnetic probe is simulated on the pressure container coated with anti-corrosive paint layer. The quantitative relationship between the thickness of the anti-corrosive paint and the sensitivity of the probe is obtained. According to CVDA Pressure Container Defect Evaluation norms, the feasibility of magnetic probe for the in-service pressure container with paint coating is discussed. The result indicates that when the thickness of the paint layer is less then 25... |
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| Keywords: | Pressure vessel Anti-corrosive layer Magnetic probe Defect evaluation |
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