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阐述金属磁记忆的基本原理。介绍MTR 1型铁路专用金属磁记忆检测仪的研制内容和主要功能。检测仪由主机和检测小车两部分组成。给出检测仪主要技术参数。在10个厂段、总长为1820m、81个焊接接头的钢轨检测应用试验中,磁记忆检测技术显示出良好的重复性和规律性。初步试验表明,它有望成为一种新的探测金属材料或设备的早期失效或故障的有效手段。
Describe the basic principle of metal magnetic memory. Introduce the research content and main functions of MTR 1 railway dedicated metal magnetic memory tester. Detector by the host and test car composed of two parts. Given the main technical parameters of the detector. In 10 plant sections with a total length of 1820 m, 81 tests of rail joints for welded joints were performed, and the magnetic memory testing technique showed good repeatability and regularity. Preliminary tests show that it is expected to become a new effective means of detecting the early failure or failure of metal materials or equipment.