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为保证机床铸件几何精度的稳定性,不断提高我国机床工业水平,努力改善铸件时效炉内各点的温差值具有特别重要的意义。为此,从1966年2月就由有关部门组成了攻关小组,在伟大的毛泽东思想的指引下,采用领导、工人和技术人员三结合的方法,通过调查研究,大搞科学试验,经过四个月的努力,改善了炉型结构,提高了操作熟练程度,使炉温差由过去的±200℃以上,降低到
In order to ensure the stability of the geometric accuracy of the machine tool casting, continuously improve the level of China’s machine tool industry, and strive to improve the temperature difference between the casting furnace aging point is of special significance. To this end, from February 1966, a research team composed of relevant departments formed under the guidance of the great Mao Tse-tung’s thought, adopting a combination of leadership, workers and technicians through scientific research through investigations and studies. After four Month’s efforts to improve the furnace structure, improve operational proficiency, the furnace temperature difference from the past ± 200 ℃, down to