Wrought P/M processing for prealloyed powder
US4464206A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 1983 |
| Grant date | Aug 7, 1984 |
| Priority date | — |
| Expiry date | Nov 25, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2998/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for producing a wrought product of improved ductility from substantially noncompactible prealloyed metal powder. The process comprises the steps of: comminuting substantially noncompactible prealloyed metal powder so as to flatten the particles thereof; heating the comminuted particles of metal powder at an elevated temperature, the particles adhering and forming a mass during heating; crushing the mass of metal powder; compacting the crushed mass of metal powder; sintering the metal powder; and hot working the metal powder into a wrought product. The wrought product has a chemistry which is substantially the same, with the exception of carbon and certain residuals, as the chemistry of the prealloyed powder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.