Highly Porous Granulated Corundum Filler of Alumina-Foam Polystyrene Mixture. Part 5. Effect of Molding Mixture Fineness and Moisture Content on Filler Granulation Capacity and Physicotechnical Properties1

Abstract

It is established that there are three stages in molding mixture pelletization: nucleus formation, granule growth, and mass transfer between them. Addition of a surfactant improves granulation capacity and reduces molding moisture content, and increases raw granule strength. The fineness of the starting material has a significant effect on capillary reaction forces that are fundamental during molding mixture pelletization.