论文部分内容阅读
叙述了310乙字钢的用途、经济意义及其断面特点;强调了合理选择孔型系统的重要性和孔型设计的基本原则,指出应将不均匀变形集中在高温区(950轧机第Ⅰ孔),使轧件尽早达到要求的厚度比,而使后面各孔始终保持压下系数相等,才能消除“歪扭”现象,达到稳定轧制;论述了以腰部中点为中心,按孔型中心线长度来考虑孔型的展宽和宽度的原则,以及合理设计和正确安装导卫装置的重要性,并指出严格控制钢坯温度是稳定轧制的关键。
The application, economic significance and cross-section features of 310 B-steel are described. The importance of choosing the hole-type system rationally and the basic principle of hole design are emphasized. It is pointed out that the inhomogeneous deformation should be concentrated in the high temperature zone (the first hole of 950 rolling mill) , So that the rolling as soon as possible to achieve the required thickness ratio, leaving behind the hole always maintain the same reduction factor in order to eliminate the “crooked” phenomenon, to achieve stable rolling; discusses the midpoint of the waist as the center, according to the hole centerline Length to account for the principle of hole width and width, as well as the importance of proper design and proper installation of guide, and pointed out that strict control of billet temperature is the key to stable rolling.