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摘自《R＆D 神户製鋼技報》,1988,Vol. 38,№3,63～65。 鉴于近年来对钢铁产品的质量要求日益严格,必须对半成品的方坯也要实行严格的质量检查。日本神户钢铁公司在神户钢厂和加古川钢厂设置了方坯连续自动探伤设备。 用肉眼作磁粉探伤时,即使是熟练的技术人员也不易识别真缺陷和表面不平及磁粉分布不均产生的伪缺陷,在连续探伤时也常常出现错误的判断。该公司新开发的磁粉探伤设备解决了上述问题。该设备由喷撒萤光磁粉用的喷嘴、磁铁、紫外线灯、工业电视摄像机、图象处理设备、花样识别和信号处理设
From “R & D Kobe Steel Technology”, 1988, Vol. 38, № 3, 63 ~ 65. In view of the increasingly stringent quality requirements for steel products in recent years, stringent quality inspections must be carried out on the billets of semi-finished products. Kobe Steel in Japan and Kakogawa steel mills set up a continuous billet automatic testing equipment. With the naked eye for magnetic particle inspection, even skilled technicians are not easy to identify true defects and surface unevenness and uneven distribution of magnetic particles generated false defects, often in the continuous testing of the wrong judgment. The company’s newly developed magnetic particle inspection equipment solves the above problems. The device consists of a nozzle for spraying fluorescent magnetic powder, a magnet, an ultraviolet lamp, an industrial television camera, an image processing device, a pattern recognition and a signal processing device