| 摘要 |
<p>A method of rolling a plate to form a substantially cylindrical article on apparatus comprising a support bed for the plate, a rotatable mandrel with a gripper for engaging an edge of the plate, pressure rollers adjacent said mandrel adapted to engage said plate, including the steps of engaging an edge of the plate by said gripper, turning the mandrel to advance said plate past said pressure rollers to curve said plate into a cylinder shape characterized in that said mandrel and said pressure rollers are relatively movable to create a force on said advancing plate at least during the final stages of rolling to prevent relative movement of the plate and said mandrel. Apparatus for carrying out the method is also disclosed. - 1a</p> |
