EP 1041198 B1 20060621 - Soft roll and process for making such a roll
Title (en)
Soft roll and process for making such a roll
Title (de)
Elastische Walze und Verfahren zum Herstellen einer solchen
Title (fr)
Rouleau élastique et procédé de fabrication d' un tel rouleau
Publication
Application
Priority
DE 19914710 A 19990331
Abstract (en)
[origin: EP1041198A1] The roller, especially for polishing paper webs, has a metal core (1) and an outer elastic cladding layer (2) with fibers (4 embedded in an elastic matrix material (3,3'). The fiber content is variable outwards from within, within the cladding layer (2) and especially decreases. The fiber content is generally zero at the radial outer zones of the roller cladding layer (2). The roller cladding layer ( has a radially outer functional layer (9) and a radially inner bonding layer (10), to bond the functional layer to the roller core ( The bonding layer (10) is composed of an elastic matrix (3') material with embedded fibers. The matrix material (3,3') is the sa in the functional (9) and bonding (10) layers and/or the fibers (4,4') are of the same material in the functional (9) and bondin (10) layers and/or the fiber content is higher in the bonding layer (10) than in the functional layer (9) and/or the fibers (4,4 are evenly distributed radially over the bonding layer (10) and/or the fiber content in the bonding layer (10) varies outwards f within and especially decreases and/or the fiber content in the radial outer zone of the bonding layer (10) equals the fiber con of the radially inner zone of the functional layer (9). The fibers (4,4') are arranged in radially spaced fiber layers (7,7'), w the radial gap between the radially outer fiber layers (7) is larger than the gap between radially inner layers (7'). The averag fiber content of the functional layer (9) is 5-20 vol% and especially 8-12 vol% and/or the average fiber content of the bonding layer (10) is 40-70 vol% and especially 50-60 vol% and preferably. 55 vol%. The fibers (4,4') are of glass and/or carbon and/or matrix material (3,3') is of plastics and especially a heat-setting or thermoplastic and/or the matrix material (3,3') is a combination of resin and a hardener. An Independent claim is included for a roller cladding process, where the fiber content in the cladding layer is varied in radial direction, and especially is decreased radially outwards from within. Preferred Features: The fibers, in a number of bund are wound around the roller core in overlapping layers. The fiber bundles are rovings where each roving is composed of adjacent fibers of the same type and/or the fiber bundles are formed by a fiber web. Before the fiber bundles are wound around the roller core, they are impregnated in a matrix bath, or they are dry when wound around the roller core to be treated with the matrix material during or after winding so that the fibers are wholly embedded in the matrix. The fibers are of glass and/or carbon.
IPC 8 full level
D21G 1/02 (2006.01)
CPC (source: EP US)
D21G 1/0233 (2013.01 - EP US)
Designated contracting state (EPC)
DE FI FR GB SE
DOCDB simple family (publication)
EP 1041198 A1 20001004; EP 1041198 B1 20060621; EP 1041198 B2 20100203; DE 19914710 A1 20001005; DE 50013013 D1 20060803; US 6319185 B1 20011120
DOCDB simple family (application)
EP 00105583 A 20000316; DE 19914710 A 19990331; DE 50013013 T 20000316; US 53828500 A 20000330