废旧曲轴R角处缺陷的超声波检测

基金项目:

广东省主题科研机构创新能力建设专项资助项目(粤科规财字［2014］208号)

详细信息

Ultrasonic Testing of the Defect around R Corner in Old Crankshaft

摘要: 针对发动机再制造前废旧曲轴R角处缺陷进行了超声波探伤。根据曲轴的材料和结构特点, 选择了合适的探头, 设计了专用的校准试块, 对缺陷的定位问题进行了分析; 采用当量对比法, 对缺陷的定量问题进行了探讨。结果表明, 在选择合适的检测参数的条件下, 该方法能够对曲轴R角处缺陷进行定位、定量检测,并在实际工程应用中, 取得了良好的效果。
- 曲轴 /
- 缺陷 /
- 超声波检测 /
- 探头
Abstract: Ultrasonic testing was done to detect the defects around R corner in old crankshaft before remanufacturing. According to the characteristics of material and construction of the crankshaft, appropriate probe was applied and special calibration block was designed to locate the defects, then the equivalent method was used to quantify the defects. The results indicate that the defects around R corner in old crankshaft can be located and quantified by ultrasonic testing if the appropriate parameters are used. Moreover, the technique is successfully applied to the practical engineering testing.
- Crank shaft /
- Defect /
- Ultrasonic Testing /
- Probe

[1]	XU Bin-shi,ZHANG Wei,LIU Shi-can.Remanufacturing technology for the 21st century［C］∥Proceedings of the 15th European Maintenance Conference. Gothenburg, Sweden: European Maintenance Association, 2008:335-339.
[2]	董世运, 徐滨士, 何鹏. 重型汽车发动机曲轴断裂分析［J］. 失效分析与预防, 2009, 4(3):138-142.
[3]	魏俊, 彭应秋, 罗顺明. 曲轴R处缺陷的超声探伤及定位问题的研究［J］. 无损探伤, 2006, 30(2):20-22.
[4]	陈文华. 汽车发动机构造与维修［M］. 北京: 人民交通出版社, 2007.
[5]	SILVA F S. Analysis of a vehicle crankshaft failure［J］. Engineering Failure Analysis, 2003, 10: 605-616.
[6]	刘贵民. 无损检测技术［M］. 北京: 国防工业出版社, 2006.
[7]	郑中兴. 材料无损检测与安全评估［M］. 北京: 中国标准出版社, 2004.
[8]	李坚, 胡智, 郭洪涛. 单晶双斜探头探伤时缺陷定位问题的研究［J］. 南昌航空工业学院学报, 2001, 9(3): 12-16.