Reason and Improvement Method of Excessive Background in Fluorescent Penetrant Inspection of Vanes
摘 要
某机压气机转子叶片在荧光渗透检测时发现荧光背景过度的现象,经过第一次除氧化膜和第二次除氧化膜返修处理后,查找出背景过度的原因是叶片表面氧化膜未去除干净。因此,在压气机转子叶片的荧光渗透检测前增加了目视检查工艺,确保叶片表面氧化膜去除干净。
Abstract
The fluorescence background of compressor rotor blade is excessive when it is detected by fluorescence penetrant inspection. After the first and the second removing of the oxide film, the cause of excessive background is that the oxide film on the surface of the blade is removed incompletely. Therefore, a visual inspection process is added before the fluorescent penetration test of the compressor rotor blade to ensure the surface oxidation of the blade is removed completely.
中图分类号 V232.4 TG115.28 DOI 10.11973/wsjc201805019
所属栏目 实践经验
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收稿日期 2017/12/14
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联系人作者徐亚亚(xyyluck@163.com)
备注徐亚亚(1976-),女,本科,高级工程师,主要从事荧光渗透检测工作
引用该论文: XU Yaya,LIU Xingyong. Reason and Improvement Method of Excessive Background in Fluorescent Penetrant Inspection of Vanes[J]. Nondestructive Testing, 2018, 40(5): 76~78
徐亚亚,刘兴勇. 叶片荧光渗透检测背景过度的产生原因及改进方法[J]. 无损检测, 2018, 40(5): 76~78
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参考文献
【1】周菊元,王于梅,陈金伟. 大型铝叶片压差铸造工艺[J]. 热加工工艺,1990(3):56-58.
【2】章海霞,李中奎,许并社,等. 氧化膜结构及内应力对新锆合金腐蚀机理的影响[J]. 金属学报,2014, 50(12):1529-1537.
【2】章海霞,李中奎,许并社,等. 氧化膜结构及内应力对新锆合金腐蚀机理的影响[J]. 金属学报,2014, 50(12):1529-1537.
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