METHOD OF OPERATIVE DETERMINATION OF ELASTIC DEFORMATION PARAMETERS OF SHEET MILL STAND Russian patent published in 2005 - IPC

FIELD: rolling.

SUBSTANCE: invention can be used in automation of hot and cold rolling mills. Method provides determination of parameters of elastic deformation of stand: modulus of rigidity of stand, correction factor for transfer from absolute roll-to-roll clearance of stand to relative position in respect to roll pass design point, efforts on stand elastic deformation line corresponding to beginning of linear section and use of obtained parameters for refined determination of parameters of adjustment (rearrangement) of stand. Method of determination of parameters of stand elastic deformation line is combined with process of stand designing and it is implemented at step or continuous loading of stand rolls by roll compression force created by hydraulic pressure devices from minimum stand off-loading force to designing force. Proposed method improves accuracy of adjustment (rearrangement) of rolling stand by roll-to-roll clearance, decreases breaking of strips and increases yield of good strips by decreasing rejection of metal caused grow-back defect, reduces consumption of metal and work and support rolls owing to exclusion of additionally changing and re-grinding of rolls in case of strip break in stand.

EFFECT: increased yield of strips.

3 cl, 4 tbl, 2 ex, 4 dwg