The ends of the iron plate rolled by the plate rolling machine are straight or not round, so how can it be round?
I do tin insulation. The round iron sheet I rolled out will be installed on the pipe and fixed with rivets and live screws. So it won't deform. About the problem of no deformation after rolling. I think the first thing to do is to adjust the plate rolling machine. Push harder. Then find a way to fix the butt joint, and the rolled iron plate must be placed upright. Only in this way will it not be deformed.