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1、前言为了适应我国四个现代化建设的需要,今后除安装专用H型钢轧机生产H型钢外,充分利用我国现有的大中型横列式轧机,用从动立辊框架组成四辊孔型轧制H型钢也是经济可行的重要途径。国外生产的经验表明,当H型钢比重不大(总产量的10～15％)用框架法是合理的;当比重超过40％时采用万能机座则是可行的。如用框架法组成四辊孔型轧制工字
1. Preface In order to meet the needs of our country’s four modernizations, in addition to installing H-section steel for special H-beam mills, we will make full use of the existing large and medium-sized horizontal row mills in our country to form four-pass pass rolling with driven vertical frame H-section steels are also an economically viable way. The experience of foreign production shows that when the proportion of H-beam is small (10-15% of the total output), the frame method is reasonable. When the proportion is more than 40%, it is feasible to use universal frame. Such as frame method composed of four-pass pass rolling word