便携式磁粉探伤机设计的关键技术  

Key Technologies of Portable Magnetic Powder Testing Instrument

作　　者：郑国恒[1] 张柯[1] 周瑶[1] 刘岩 

机构地区：[1]郑州大学物理工程学院,郑州450001 [2]河南省濮阳市锅检所,濮阳457000

出　　处：《无损检测》2010年第4期267-270,共4页Nondestructive Testing

摘　　要：利用磁粉探伤理论,建立了单个球形磁粉在漏磁场中的受力的物理和数学模型。阐述了磁化电流、磁轭探头等因素在实际使用中对磁粉探伤机性能的影响;通过对磁粉探伤机的核心部分,即磁化电源的改进,给出了便携式磁粉探伤机的关键技术,即利用变频逆变产生的方波进行复合磁化的技术。Based on the magnetic particle flaw detection theory and the establishment of physical and mathematical models of mechanics of the spherical magnetic particle in leak field,the effect of various factors including the magnetization current,magnetic yoke probe,etc.in the actual use on the performance of magnetic powder testing instrument was expounded in this paper.Then through improving the magnetization power which was the core part of the magnetization powder testing instrument,the key technology of the magnetic powder testing instrument was offered,which was to select the square-wave produced by frequency inverter as the composite magnetization technology.

关 键 词：磁粉探伤 磁化电源 变频逆变 复合磁化 硬件设计 

分 类 号：TG115.28[金属学及工艺—物理冶金]