Alternating pressure melt impregnation device and melt impregnation method using the same
US10744726B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2017 |
| Grant date | Aug 18, 2020 |
| Priority date | — |
| Expiry date | Jul 27, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2101/12
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An alternating pressure melt impregnation device and a melt impregnation method, including having a resin melt squirted from each resin melt runner on an upper die and a lower die of a melt injection area, and thus the squirted resin melt is enable to be squirted directly on an upper surface and a lower surface of a continuous fiber bundle which is entering into an impregnation chamber. Impregnation and infiltration for both surfaces of the continuous fiber bundle are primarily completed by a squirted pressure. The resin melt inside the impregnation chamber flows to a decompression chambers at both sides of the impregnation chamber. When the resin melt flows to a throttle plate, a re-impregnation for the continuous fiber bundle is realized. Then the pressure is decreased and a section of the resin melt is enlarged and a radial flow is generated due to the Barus effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.