Method for manufacturing substrate-integrated gasket
US10391689B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2014 |
| Grant date | Aug 27, 2019 |
| Priority date | — |
| Expiry date | Oct 29, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention provides a method for manufacturing a substrate-integrated gasket, the method integrating a fiber substrate which is constructed by a pulp fiber having cellulose as a main component and a gasket body which is constructed by a rubber-like elastic body according to a rubber impregnation, wherein a plurality of substrate-integrated gaskets are obtained by executing an injection molding by plural stages of rubber metal molds. Further, the rubber material is filled in plural stages of metal mold cavities by passing the rubber material through the fiber substrate in which a rubber material flow channel in the metal mold is closed at its injection pressure. The invention can reduce a man hour for removing burr and cleaning a metal mold by suppressing generation of rubber burr at the molding time and can reduce an amount of disposal of a molding material, thereby achieving a good manufacturing efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.