Apparatus for continuous friction-actuated extrusion
US6419473B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 11, 2000 |
| Grant date | Jul 16, 2002 |
| Priority date | — |
| Expiry date | Apr 11, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F3/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A continuous, friction-actuated extrusion apparatus, comprised of a cylindrical first member having a circumferential groove formed in its peripheral surface. A stationary second member projects into the groove and defines a passageway between the first member and the second member, the passageway having an entry end and an exit end. A metal feeding device for feeding metal into the passageway at the entry end as the cylindrical first member rotates toward the exit end. An abutment member extends across the passageway at the exit end and at least one die orifice is located at the exit end of the passageway. At least one restriction member is located in the passageway between the orifice and the entry end, the restriction member constricting the passage for a portion thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.