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在毛主席革命路线的指引下,中国计量科学研究院和第三机械工业部、第七机械工业部、中国民用航空总局等有关单位,对黑色金属的“硬度”指标和“强度”指标间对应的换算关系进行了研究,系统地导出了碳钢、铬钢、铬钒钢、铬镍钢、铬钼钢、铬镍钼钢、铬锰硅钢、不锈钢、超高强度钢等九个钢系的换算公式,探索了整个黑色金属的换算规律,为国民经济建设和国防建设提供了广泛适用的换算表,填补了我国科学技术领域中的一项空白。
Under the guidance of Chairman Mao’s revolutionary line, relevant research institutes such as China Institute of Metrology and Third Machinery Industry, Seventh Machinery Industry and Civil Aviation General Administration of China responded to the “hardness” and “strength” indicators of ferrous metals The relationship between the conversion was studied systematically derived carbon steel, chrome steel, chrome vanadium steel, chrome-nickel steel, chrome molybdenum steel, chrome-nickel molybdenum steel, chrome manganese silicon steel, stainless steel, ultra-high strength steel, nine steel Conversion formula to explore the entire law of the conversion of ferrous metals for the national economy and national defense construction provides a widely applicable conversion table to fill a blank in the field of science and technology in China.