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| DF4D型机车在役车轴超声波探伤方法探讨 | |
| 引用本文： | 黄镜平,安萍,刘宪.DF4D型机车在役车轴超声波探伤方法探讨[J].内燃机车,2003(8). |
| 作者姓名： | 黄镜平 安萍 刘宪 |
| 作者单位： | 1. 北京铁路局,机务处,北京,100860 2. 天津机务段,天津,300011 3. 湖东电力机务段,山西,大同,037300 |
| 摘 要： | 分析了DF4D型机车在役车轴疲劳裂纹产生的原因,介绍了车轴疲劳断裂过程。根据疲劳裂纹的特点确定了探伤条件,通过选择正确的探头角度、制作实物试块而明确提出了超声波探伤方法,并介绍了车轴疲劳裂纹波形特点和疲劳裂纹定量的影响因素。 |
| 关 键 词： | DF4D型机车 车轴 探伤 波形特点 定量 |
Discussion on ultrasonic flaw detection for the car axles in use for DF4D locomotive |
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| HUANG Jing ping ,AN Ping ,LIU Xian.Discussion on ultrasonic flaw detection for the car axles in use for DF4D locomotive[J].Diesel Locomotives,2003(8). | |
| Authors: | HUANG Jing ping AN Ping LIU Xian |
| Affiliation: | HUANG Jing ping 1,AN Ping 2,LIU Xian 3 |
| Abstract: | The reason of the axle fatigue crack is analysed. The fatigue fracture process is described. The detection conditions are determined based on the characteristic of the fatigue crack. The ultrasonic flaw detection method is promoted by choosing the right probe angle and making the material object test modul. The characteristic of the fatigue crack wave form and the influence factors in the quantization of the fatigue crack are also pointed out in this paper. |
| Keywords: | DF4D car axle ultrasonic flaw detection wave form characteristic quantization |
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