Method for injection molding into a resonating mold
US5017311A · kind A · utility
34Cited by
4References
4Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 17, 1989 |
| Grant date | May 21, 1991 |
| Priority date | — |
| Expiry date | Jul 17, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C45/568
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An injection molding method in which a molding material is injected into a cavity formed in a mold to be molded. The mold is driven to resonate so that resonance occurs in the mold at n wavelengths, where n=m/2 and m is a positive integer, and an injection molding apparatus provided with a fixed mold and a movable mold; the movable mold having a cavity in one side thereof, and an ultrasonic vibration feed device being connected to the other side thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.