Reinforced flexible hose and method of manufacturing same

Abstract

Abstract Flexible reinforced hose is manufactured by extruding curable material onto a mandrel to form a tubular inner part of the hose, applying a wire reinforcement about the inner part, extruding a further layer of curable material about the reinforcement to form a tubular outer part. The assembly is then heated to cure the inner and outer parts simultaneously, with the assembly supported as a catenary during an initial part of the curing treatment to avoid imparting a non-rectilinear set to the hose. The respective co-efficient of thermal expansion of the mandrel and of the reinforcement are such that mandrel expands radially relative to the reinforcement as the assembly is heated, with the result that material from the inner part is forced into interstices in the reinforcement and a closely embracing and surface keying relation is established between the reinforcement and the inner part of the hose.

Inventors

• 👤 K Ingham

Bibliographic Details