| 摘要 |
<p>PURPOSE:To decrease the broadside shape defects of products after the end of rolling by performing edging at the broadside rolling reduction calculated by the length of the fish tails produced from dogbones, the remaining broadside rolling ratio after edging and the broadside shape produced by broadside rolling. CONSTITUTION:A broadside rolling ratio alpha is calculated from rolling width/slab width and a broadside shape margin Smm. is calcualted by the equationI. Thereafter a fishing length FTmm. is calculated by the equation II from the remaining broadside ratio alpha' after broadside edging and the margin Smm.. From the fishing length FTmm. obtained by the calculation, broadside rolling reduction DELTAW is calculated by the equation III. Slabs are subjected to broaside rolling by using the broadside rolling reduction DELTAW, whereby the fluctuations in the width of the products after the end of the rolling are decreased.</p> |
