Method to improve adhesion between pre-cured elastomer and metal surface
AssigneeEagle-Picher Industries, Inc.
InventorsBruce Christenson, Gary Veselica
Life of this patent
Estimating the term…
Abstract
The bond strength between a pre-cured elastomeric member and a metal surface is increased by applying a phosphate coating to the metal surface. This is particularly suitable for use in formation of torsional vibration dampeners wherein an elastomeric member is compression fitted between an outer annular ring and a hub thereby decreasing slippage between the annular weigh and the hub.
Claims4
A vibration dampener comprising a metal weight, a pre-cured elastomeric member and a metal hub adapted to attach to an automotive engine wherein said metal weight and said metal hub have a phosphate-coated surface and wherein said elastomeric member is compression fitted between said metal weight and said metal hub contacting said phosphate-coated metal surfaces wherein said elastomeric member is selected from the group consisting of ethylene propylene diene monomer rubber and ethylene acrylate copolymer.
Dependencies are inferred from the claim text.