Graded pitch electromagnetic pump for thin strip metal casting systems
US4579167A · kind A · utility
6Cited by
7References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 14, 1983 |
| Grant date | Apr 1, 1986 |
| Priority date | — |
| Expiry date | Dec 14, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D11/0611
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A metal strip casing system is provided with an electromagnetic pump which includes a pair of primary blocks having a graded pole pitch, polyphase ac winding and being arranged on opposite sides of a movable heat sink. A nozzle is provided for depositing liquid metal on the heat sink such that the resulting metal strip and heat sink combination is subjected to a longitudinal electromagnetic field which increases in wavelength in the direction of travel of the heat sink, thereby subjecting the metal and heat sink to a longitudinal force having a magnitude which increases in the direction of travel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.