A YANKEE DRYING CYLINDER FOR DRYING A FIBROUS WEB AND A METHOD OF MAKING A YANKEE DRYING CYLINDER

摘要

The present invention relates to a Yankee drying cylinder (1) for drying a fibrous web (W) such as a tissue paper web. The Yankee drying cylinder (1) comprises a circular cylindrical shell (2) that has an axial extension and a first axial end (4) and a second axial end (5). The shell also has an internal surface (6) and an external surface (7). For 5 each axial end (4, 5) of the circular cylindrical shell, there is an end wall (8, 9) joined to the circular cylindrical shell (2) such that the circular cylindrical shell (2) and the end walls (8, 9) define an enclosed space (13). A central a central tie member (14) extends between the end walls (8, 9) and is joined to the end walls (8, 9) by weld joints (19, 24, 25, 26). The invention also relates to a method of manufacturing the Yankee drying 10 cylinder.