Rolls for rolling mills.

摘要

A roller for rolling mill comprising an entirely non-metallic sintered body composed principally of at least one material selected from silicon carbide, silicon nitride, sialon, alumina and zirconia and having a relative density which is at least 96% of the theoretical density, the roller having an initial crown in the range of -300 µm to +300 µm, is provided. This roller for rolling mill has a high hardness and high wear resistance and can be used as a work roll. The body can be a sleeve 2 fastened on a steel core 1 by threaded rings 3 and washers 5.