Fully integrate the characteristics of the machine equipment and processing technology in the whole process of hot rolling coiling, select the spiral opening barrel type mode, fully consider the uneven distribution of ground stress and deformation along
the circumference in the whole process of unwinding, and that the coil head coil and the wire rope drum are not completely contacted.
Color coated roll
A set of solid model of in-situ stress in coil steel suitable for hot-dip color coating and unwinding is put forward, and the relative resolution standard of interlayer slip is obtained, and the mobile phone software for weather
prediction of relative in-situ stress and interlayer slip of coil steel is developed and applied to production practice.
In the whole process of unwinding, the coil diameter will be expanded. For a certain layer of color steel coil, its axial working pressure will be enlarged. For the inner layer of color coated coil, that is, the leader takes the lead to improve,
especially in a relatively large area, so that the probability of interlayer bonding will continue to rise.
However, the axial working pressure decreases from inside to outside and from top to bottom. However, the regularity of circumferential geostress
is different, and its minimum value is generated in a certain layer inside the coil steel. The circumferential geostress at the top of the color coated coil head decreases with the increase of its working pressure. Some layers in the middle of the coil
steel are greatly reduced. If the original unwinding support force is large, there will be a negative number.