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随着我国工业生产的飞速发展,用破坏性方法检查热处理的质量已经越来越不适应。无损检查热处理质量方法,逐渐引起人们的重视,它是保证机械零件、机电产品热处理质量的重要一环。营口市精密仪器厂,在批林批孔运动的推动下,高举《鞍钢宪法》伟大红旗,大搞技术革新和科学实验,在上海工艺研究所的大力协助下,用较短的对间,于1974年9月
With the rapid development of industrial production in our country, it has become increasingly unsuitable to examine the quality of heat treatment in a destructive way. Nondestructive inspection heat treatment quality methods, gradually aroused people’s attention, it is to ensure the mechanical parts, mechanical and electrical products, an important part of the quality of heat treatment. Yingkou Precision Instrument Factory, driven by the pro-Lin Pok campaign, hold high the “Great Red Flag of the Ansteel Constitution”, vigorously promote technological innovation and scientific experiments with the strong support of the Shanghai Institute of Technology, with a shorter pair, at September 1974