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1980年12月,阿尔欠德厂萨尔炼钢车间为了充分发挥连铸机的生产能力,加大连铸坯的断面,由生产100mm方坯改为生产150mm方坯,从而产量大幅度上升。1981年12月,小型轧机在连轧机组前面增设了一套四架45°二辊紧凑式开坯机,以解决连轧机组所需100mm方坯问题。所设四架轧机总长仅7m,非常紧凑。而且采用下传动,地面空出不少地方。轧机的基本参数如下:
December 1980, Arrienne factory Saar steelmaking plant In order to give full play to the continuous casting machine production capacity, increase the continuous casting billet section, from the production of 100mm billet to the production of 150mm billet, which greatly increased production. In December 1981, an additional four 45 ° two-roll compact blanks were added to the front of the rolling stand in the mini mill to solve the 100 mm billet problem required for the continuous rolling mill. The total length of four mills is only 7m, very compact. And use the next drive, the ground vacated a lot of places. The basic parameters of the mill are as follows: