Injection molding method for manufacturing a functional part having a recess
US9296137B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 28, 2010 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | Sep 30, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24521
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An injection molding method for manufacturing a functional part having a recess, e.g., a borehole, includes a) injecting a first thermoplastic component into an injection mold, in the cavity of which a first mold core is situated, b) replacing the first mold core with a second mold core, the second mold core being smaller than the first mold core, and the second mold core being situated in the cavity formed in the first thermoplastic component by the first mold core in such a way that the second mold core is situated at a distance from the first thermoplastic component by an intervening space, c) injecting a second thermoplastic component into the space between the second mold core and the first thermoplastic component, and d) removing the second mold core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.