ELASTOMERIC MATERIAL COVERED ROLLS AND A METHOD OF MAKING THE SAME

摘要

A roll comprising a metallic roll core having a roughened surface, a fibrous reinforcing layer impregnated with a thermosetting resin and surrounding the roll core, wherein the reinforcing layer comprises: at least one layer formed by a nonwoven fabric impregnated with a mixture of the thermosetting resin and a finely powdered inorganic material; and an elastomeric material layer surrounding the nonwoven fabric layer and united integrally therewith. The roll can be further improved by winding a layer of an inorganic fiber cloth tape about the roll core and winding a layer of an inorganic roving about the inorganic fiber cloth tape. Both the inorganic fiber cloth tape and roving are impregnated with a thermosetting resin or a mixture of a thermosetting resin with a finely powdered inorganic material. A process for producing the rolls described above is also disclosed. These rolls have greater durability than conventional rolls and find a wide industrial application.