Patent ID: 6018870
Filing Date: 2000-02-01
Classification: D21F,D21G,F26B,Y10T

Abstract:
A method for fabricating a roll having a cylindrical outer wall defined by outer and inner cylindrical surfaces between which surfaces are formed a plurality of circumferentially spaced, parallel and axially extending through bores, the method comprising the steps of:(1) forming a pair of cylindrical roll sections each having a plurality of through bore portions;(2) aligning the cylindrical roll sections in circumferential abutting relation to lie generally on a common axis and with the bore portions generally aligned to define said through bores;(3) plugging the abutting ends of adjacent bore portions with plugs of a weld backing material;(4) forming a common outer annular weld groove defined by outer cylindrical surface edge portions of said cylindrical wall sections and radially outer surface portions of the backing material plugs; and,(5) applying a continuous weld to the groove.