EFFECT OF HOT-ROLLING ON THE PROPERTIES OF POLYOXYMETHYLENE SHEETS

The rolling of commercial extruded sheets of polyoxymethylene (POM) was carried out at the roll temperature of 150-degrees-C. The action of a tensile force was applied to the product during the hot rolling. A stable rolling process has been conducted experimentally. The relationships between mechanical properties and rolling conditions were studied. The tensile force applied to the product affected both the rolling force and the rolling ratio. The main effect of increasing the rolling ratio was to increase the tensile modulus and the strength of the rolled sheet. A striking feature of specimens obtained at high rolling ratio is their high degree of transparency.