Graphite fiber mold
US4581263A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 27, 1984 |
| Grant date | Apr 8, 1986 |
| Priority date | — |
| Expiry date | Aug 27, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249924
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A single piece carbon fiber composite article suitable for use as a hot-press mold is has an inner volume of chopped fiber and an outer volume of continuous carbon fiber all in a common graphite support matrix. The article is assembled by winding continuous carbon fiber around a mandrel formed of chopped carbon fiber in a matrix of carbon, impregnating the interstice in the winding and mandrel with graphite precursor material. The precursor material is converted to graphite, creating a common matrix between the internal mandrel and the external windings. The internal volume is machinable to form a graphite mold cavity, and has essentially the same coefficient of thermal expansion as the external volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.