Method of isostatic hot pressing of powder
US3932178A · kind A · utility
2Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1972 |
| Grant date | Jan 13, 1976 |
| Priority date | — |
| Expiry date | Oct 16, 1992 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F3/1258
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In isostatic hot pressing of powder in a collapsible container, the powder is enclosed in a container which is provided with one or more evacuation openings, and a conical support is held in position adjacent the evacuation openings. A funnel-shaped body of sheet metal is secured above the support and the evacuation openings by welding its edge to the wall of the container. The body is evacuated through a suction tube connected to the funnel and the tube is sealed. Thereafter the container is subjected to heat and pressure, and the funnel-shaped member collapses into engagement with the conical support.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.