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天津冶金实验厂每年修磨方型钢坯6000吨,其截面尺寸有48×48毫米和60×60毫米,长2米左右,钢材品种有轴承钢(约80%)、碳工钢(约15%)、不锈钢(约2~5%)等均采取横磨。因钢坯表面缺陷较多,大部分钢坯需全部修磨,局部修磨的较少。原来用吊挂砂轮机人力修磨时,一般地说,每部机每班可修磨约40根钢坯,用自动修磨机生产正常时每部机每班可修磨约90根。根据生产任务需要,天津冶金实验厂目前先搞一部半自动修磨机和四部自动修磨机,其中一部既能磨四面又能磨四棱角。
The Tianjin Metallurgical Experimental Plant is capable of grinding 6,000 tons of square billet each year. Its cross-sectional dimensions are 48 × 48mm and 60 × 60mm, about 2m long. The varieties of steel include bearing steel (about 80%), carbon steel (about 15% ), Stainless steel (about 2 ~ 5%), etc. are taken to cross mill. Because the billet surface defects more, most of the billet to be all grinding, grinding less local. The original use of hanging grinder manpower grinding, generally speaking, each machine can repair about 40 billets per class, with automatic grinding machine production normal each machine can repair about 90. According to the needs of production tasks, Tianjin Metallurgical Experimental Plant currently engaged in a semi-automatic grinding mill and four automatic grinding mill, one of which can not only grind four corners but also grinding corners.