| 摘要 |
PURPOSE:To enable the control of a cooling speed, by altering the moving length of a steel strip from a cooling start point to a cooling finish point while keeping the sum total of contact arc lengths of a plurality of cooling rolls and the steel strip constant. CONSTITUTION:For example, in using three cooling rolls, each roll is made movable to the direction shown by a double arrow. Whereby, the relative position of each cooling roll is altered while the sum total of the contact length of the cooling rolls and the steel strip is kept constant and the moving length of the steel strip from a cooling start point to a cooling finish point can be altered. When the cooling speed of the steel strip is controlled by this mechanism, the material quality of a product can be enhanced without changing production cost. |
