The Influence of the Visco-Elastic Properties of Covering Materials on the Rolling Process of Two Cylinders

The stress strain behaviour of visco-elastic Materials has been investicated . A special measuring device was used d to characterize the visco-elastic properties of cylinder coverings. The data for some typical covering materials used for inking and pressure rollers will be discussed . A theoretical analysis of the stress and strain in the nip will be presented as a function o f the visco-elastic properties of the materials. The results wlill be compared to measurements of the vertical and tangential forces developed between a hard roller and an inking roller and the pressure distribution in the nip .