2250mm热轧横切生产线强力矫直机换辊调整机理的分析

矫直机是热轧横切机组中的核心设备,具有矫直和消除原料残余应力的作用。邯钢2 250 mm热轧横切机组矫直机具有矫直能力强、布置紧凑的特点,在生产过程中为了实现矫直机稳定矫直和正常换辊,必须保证下辊面高度不变,从而找到了矫直机辊心的位置调整方法。通过对2 250 mm热轧横切机组矫直机在定径制度下辊箱整体更换时辊心位置的数值分析,找出了在不同辊径时辊心的位置信息,以此作为不同辊径辊子更换调整的依据,对换辊机理进行了分析,提出了换辊过程中发现问题的解决思路。

ANALYSIS ABOUT MECHANISM OF ROLL EXCHANGE AND REGULATION FOR STRENGTHENED STRAIGHTENER OF 2250 mm HOT-ROLLING CROSS-CUTTING LINE

Straightener is the core equipment in hot-rolling cross-cutting set, plays a role to straighten and eliminat residual stress in raw material.The straightener of 2 250 mm hot-rolling cross-cutting set of Han Steel has characteristics of strong straightening ability and compact arrangement. To realize steady straightening and normal roll exchange in production, the height of lower roll surface must be kept unchanged and so a location adjusting method for roll center of straightener has to be found out.With numerical analysis for roll core location of the above straightener in overall roll box replacement under sizing system, the roll core location information for different roll diameters is got to act as the reliance in exchange of roll with different diameters.The roll exchange mechanism is analyzed, the solving thinking for problems in roll exchange procedure proposed.