铁道车辆车轮辐板孔的磁记忆检测  

METAL MAGNETIC MEMORY TESTING RESEARCH OF THE WHEELS OF RAILBOUND VEHICLES

作　　者：万升云[1] 简虎[2] 李毅[2] 姚高尚[2] 熊腊森[2] 

机构地区：[1]中国南车集团武汉江岸车辆厂,武汉430012 [2]华中科技大学材料学院,武汉430074

出　　处：《理化检验（物理分册）》2006年第11期558-560,570,共4页Physical Testing and Chemical Analysis(Part A:Physical Testing)

基　　金：中国南车集团科技项目(2004NCK057)

摘　　要：研究了磁记忆检测技术在铁道机车承力部件上的应用,在对铁道机车车辆的辐板孔进行了磁记忆检测后,用磁粉检测进行了复检。结果表明,磁记忆技术可以有效发现表面裂纹等缺陷,并且能对铁道车辆车轮辐板孔产生破坏的可能性进行预测。Metal Magnetic Memory Technology （MMMT） can be used to find out the stress concentration zone and provide early diagnosis for ferromagnetic structure. The MMMT was applied to test the components on railway vehicles in this paper, and magnetic particle testing was used for re-examination. The results showed the flaws such as crack on the surface of railway vehicles can be found by MMMT. It can predict the dangerous zone on the holes of railway wheels.

关 键 词：金属磁记忆 无损检测 铁道车辆 磁粉检测 裂纹 

分 类 号：U260.33[机械工程—车辆工程]