| 摘要 |
<p>PURPOSE:To improve work efficiency by specifying the moving amount of work roll in the axial direction and controlling the quantity of taper effect in the crown control of cold rolling. CONSTITUTION:At the time of crown control in cold rolling, the quantity ( h) of taper effect is calculated by the equation. Where, (ah + b) is taken as a constant that is determined by the dimensions of the roll of rolling mill, WRT as a value that is determined by the taper angle (theta) of work roll, WRdelta as the shift position of work roll. The work roll is moved in the axial direction and set so that the quantity of taper effect is <=1% of the thickness (h) on the outlet side. In this way, the shift position of work roll can be adequately set before rolling and work efficiency is improved.</p> |
