Longitudinally-slotted steel tube producing process involves supporting plate on flat or slightly concave surface of roll-out body

摘要

The tube producing process involves rolling a plate (4) round a shaping body (1). The plate is pressed by the shaping body against an elastic flat or slightly concave support surface (2a) during the rolling out. The plate is thus bent round the shaping body. The shaping body is supported by support devices (3) on the opposite side.