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1962年我厂在党的社会主义建设总路线的光辉照耀下,高举毛泽东思想伟大红旗,贯彻了奋发图强,自力更生,大搞科学试验的革命精神,经过无数次的试验研究,在全厂职工的努力下,试制成功了我国第一台自行设计的高精度半自动万能外圆磨床,为我国外圆磨床的设计制造技术向前推进了一步。高精度机床磨削的工件精度很高:外圆光洁度达到▽14级,母线不直度达到1微米,不圆度0.6微米内。内圆光洁度▽12以上,不圆度在2微米内。因此,对机床的几何精度也
In 1962, under the brilliant shining of the general line of the party’s socialist construction, our factory held high the great red banner of Mao Zedong Thought, implemented the revolutionary spirit of making every effort to strengthen itself and make scientific experiments. Through countless experiments and studies, , Successfully trial-produced China’s first self-designed high-precision semi-automatic universal cylindrical grinder, cylindrical grinder for our design and manufacturing technology to move forward one step forward. High-precision machine tool grinding workpiece accuracy is high: the outer surface finish ▽ 14 level, the bus bar does not reach 1 micron, non-roundness within 0.6 microns. Inner surface finish ▽ 12 or more, not roundness within 2 microns. Therefore, the geometric accuracy of the machine also