On the Distance between the Rolling MillsAuthor : hani Time : 2017/11/01
How much distance between the rolling mills should be set, in fact, is an old question of process. Indeed, the process of tandem rolling is arranged according to the function.
Take rough rolling as an example. This region is the extension of large deformation, and there is no specific process requirements about the layout. As long as the maintenance location is left (1 to 2 meters’ maintenance channel between equipment).
Flying shear area should be connected with the control section, insuring that the detector and the feedback speed can make the flying shear runs normally.
Where there is a cooling tank, keep an eye to the cooling section of the tank and the length of the recovery section.
Where there is a loop, pay attention to the height and the length of the loop and the angle between them, and the length of the guide should be considered.
As for semi – continuous rolling, the length of the intermediate rolled piece should be taken into account.
About plate rolling, the length of the rolled piece in each pass and the length of the cooling water section should be considered.
The requirement of the continuous rolling is high in the control process; in the procedure of tension-free rolling, it’s unrealistic to require rigid second volume flow, which depends on the ability of the motor to achieve. But we know that it’s impossible not to reduce the dynamic speed of the motor during the load process. And if the dynamic drop requirement is too high, the motor manufacturing costs will increase greatly. In order to ease this contradiction, in the process design, consider to pre-speed up in advance to compensate for the slow down of load process. Hence, the concept of the dynamic compensation and dynamic drop were generated, and the concept of loop also produced. This amount is intuitively described as a change in speed.