Elastische Walze und Verfahren zum Herstellen einer solchen

Es wird eine Walze, insbesondere zum Glätten von Papierbahnen, mit einem insbesondere aus Metall bestehenden harten Walzenkern beschrieben. Der Walzenkern ist an seiner Außenseite mit einer elastischen Bezugsschicht versehen, die aus einem Matrixmaterial und in das Matrixmaterial eingebetteten Füllstoffen besteht. Erfindungsgemäß besteht das Matrixmaterial aus einem weichen Metall. Weiterhin wird ein Verfahren zum Herstellen einer solchen Walze beschrieben. The roller, especially for polishing a paper web, has a hard metal core (1) with an elastic cladding (2). The cladding is of a matrix material of a soft metal (3), with embedded filling materials (4). The soft metal (3) for the roller cladding has a melting point of ≤ 600 degrees C and preferably of 480 degrees C or less and/or the filling material (4) has a higher elasticity than the metal (3) of the matrix. The matrix metal (3) has a higher thermal conductivity than the filling material (4) and/or the thermal coefficient of expansion of the matrix metal (3) is equal to that of the roller core (1). The filling material is of synthetic particles (4), especially as fibers or rovings. A part or most of the fibers have an axial alignment and/or a radial alignment and/or are in a statistical alignment distribution and/or the fibers are in a fiber layer or in radially successive fiber layers. Additional filling materials are added to the matrix as fibers or a powder especially as quartz and/or a polymer and/or carbon and/or glass fibers. An Independent claim is included for the production of a roller with an elastic cladding, where a soft metal coating is applied to the hard roller core.