Plastic and nonmetallic article shaping or treating: processes – With printing or coating of workpiece – Coating or impregnating workpiece before molding or shaping...
Patent
1991-06-26
1993-05-25
Woo, Jay H.
Plastic and nonmetallic article shaping or treating: processes
With printing or coating of workpiece
Coating or impregnating workpiece before molding or shaping...
156245, 264259, 264265, 264DIG65, B29C 4516
Patent
active
052137392
ABSTRACT:
A process for bonding elastomeric material to a metal part includes coating a heat curable adhesive on surfaces of the metal part to be bonded, placing the metal part in a mold, preheating a bottom plate and an upper transfer pot of a transfer molding machine to a predetermined cure temperature, loading a predetermined quantity of uncured elastomeric material into the transfer pot, clamping the mold containing the adhesive coated metal part to the bottom plate, and almost contemporaneously, pressing the uncured elastomeric material into the mold while maintaining heat and pressure in the mold for a time sufficient to vulcanize and thereby cure the elastomeric material simultaneously with the adhesive, whereby contacting surfaces of the metal part are strongly bonded to the vulcanized elastomeric material.
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Dickerson George E.
Kelley Henry L.
Davis Robert B.
Helfrich George F.
The United States of America as represented by the Administrator
Woo Jay H.
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