公开(公告)号：US20190315589A1

公开(公告)日：2019-10-17

申请号：US16380611

申请日：2019-04-10

Applicant: CROSSLINKING AB

Inventor： BENGT LAURELL ,  EBERHARD FOELL

IPC: B65H27/00 ,  G21K5/08 ,  B65H20/02

Abstract: A roller is described for an irradiation apparatus, wherein the roller is designed to guide a material web to be irradiated past at least one electron emitter. The roller comprises a first end face region of the roller, wherein the diameter of the first end face region is smaller than the diameter of the roller, and a jacket surface of the roller, which takes the form of a jacket surface of a right circular cylinder. The jacket surface extends in the axial direction from a first axial position to a second axial position of the roller, wherein the first axial position has an axial spacing from the edge of the first end face region which amounts to between 3% and 25% of the length of the roller, and wherein the second axial position is further away from the first end face region than the first axial position. The roller comprises a first curved transitional region, which extends from the edge of the first end face region annularly and continuously as far as the first axial position of the roller. Viewed in a longitudinal plane through the center axis of the roller, a curvature of the contour of the roller at the transition from the first end face region to the first curved transitional region, within the first curved transitional region and at the transition from the first curved transitional region to the jacket surface is in each case less than a maximum curvature which corresponds to a minimum radius of curvature of 5% of the diameter of the roller.