Extrusion die for extruding metallic powder material
US4601650A · kind A · utility
3Cited by
2References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 2, 1985 |
| Grant date | Jul 22, 1986 |
| Priority date | — |
| Expiry date | May 2, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB30B11/221
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed are extruded dispersion strengthened metallic materials which are substantially free of texture as well as a method for producing such materials. The method comprises extruding a billet of dispersion strengthened metallic powder material comprised of one or more metals and one or more refractory compounds said powder material having a mean grain size less than about 5 microns and whose grain size is substantially stable at the extrusion conditions, through a die having an internal contour such that the material is subjected to a natural strain rate which is substantially constant as it passes through the die.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.