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一、前言一九七一年二月,冶金部、一机部和三机部在北京召开航空轴承钢质量会议,着重指出钢材表面存在着严重的裂纹缺陷。为此,决定组织技术攻关组,目的在于研制一套检查航空轴承钢质量的无损探伤自动装置,提高探伤速度和实现探伤自动化问题。参加攻关组单位有冶金部钢铁研究院、大连钢厂、上海第五钢铁厂、四一○厂、四二○厂、四三○厂、上海微型轴承厂和营口仪器厂,组成了科研、生产、使用部门三结合小组,
I. Preface In February 1971, the Metallurgical Department, the First Machinery Department and the Third Machinery Department held the aviation bearing steel quality conference in Beijing, stressing that there were serious crack defects on the steel surface. To this end, the decision to organize technical research group, the purpose is to develop a set of inspection of aviation bearing steel quality non-destructive testing automatic device to improve the testing speed and to achieve automation testing problems. Participated in the research group unit of the Ministry of Metallurgical Iron and Steel Research Institute, Dalian Steel, Shanghai No. 5 Iron and Steel Plant, 410 plants, 420 plants, 430 plants, Shanghai Micro Bearing Factory and Yingkou Instrument Factory, formed a research, production , The use of three departments combined unit,