Method of forming shaped body from fine particles with carrier fluid under pressure gradient
US5215697A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 1992 |
| Grant date | Jun 1, 1993 |
| Priority date | — |
| Expiry date | Mar 11, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F3/004
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A shaped body is formed from fine particles such as powder, whiskers or short fibers of ceramics or metal, by preparing a mold having a mold chamber, an inlet port open to the mold chamber at its first portion and adapted to introduce a mixture of the fine particles and a carrier fluid into the mold chamber, and an outlet port open to the mold chamber at its second portion substantially opposite to the first portion and adapted to exhaust substantially only the carrier fluid in a gaseous state out of the mold chamber; preparing the mixture of the fine particles and the carrier fluid; and supplying the mixture under a pressure elevated substantially above atmospheric pressure into the mold chamber through the inlet port while exhausting the carrier fluid out of the mold chamber through the outlet port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.