论文部分内容阅读
我厂广大革命职工,于一九六七年开始试验稀土—镁球墨铸铁,至目前为止,中压阀门和部分高压阀门件已大量投产使用。过去,我厂生产的高、中压阀门一直采用苏修的选材方案,用大量的钢材,不仅成本高,加工工时长,铸钢还需外厂协作,生产无保证。工人同志看在眼里,急在心上,决心发扬“独立自主、自力更生”的革命精神,为革命试制稀土—镁球铁阀门。我们试制的球铁阀门,经过流程试验,不仅能满足流程需要,而且耐蚀性远
I revolutionized the vast majority of workers in the factory, in 1967 began testing rare earth - magnesium ductile iron, so far, medium-pressure valves and some high-pressure valve has been put into operation a large number of parts. In the past, the high and medium pressure valves produced by our factory always adopted the material selection plan of the Soviet Union. With a large amount of steel, not only the high cost and the long working time, but also the external cooperation of the cast steel and the production without guarantee. The workers’ comrades, in their eyes, are eager for their hearts and determined to carry forward the revolutionary spirit of “independence and self-reliance,” and try out the rare earth-magnesium iron ductile iron valve for the revolution. Our trial of the ductile iron valve, after the process test, not only to meet the needs of the process, and corrosion resistance far