Method of making an abrasion-resistant plate

Abstract

A solid or perforated plate, serving as a support for a screen conveyor in paper-making machinery or the like, consists of a multiplicity of juxtaposed coplanar sections of sintered refractory, predominantly ceramic material joined to one another by thin layers of a bonding agent. The ceramic component, e.g. alumina, may be admixed with a small proportion of a vitreous substance facilitating the use of a siliceous bonding agent, such as glass, enamel or silicon carbide. Alternatively, the bonding agent may be a solder (with preliminary metallization of the adjoining section edges) or an organic cement. A method for making the plate includes filling gaps between the sections with a bonding agent of silicon carbide formed by melting pieces of graphite in the gaps in an atmosphere of silicon vapor, thereby uniting the sections.

Dependencies are inferred from the claim text.