Process for bonding elastomers to metals
US5213739A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 1991 |
| Grant date | May 25, 1993 |
| Priority date | — |
| Expiry date | Jun 26, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/65
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.