Casting metal strip
US5345994A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Feb 17, 1993 |
| Grant date | Sep 13, 1994 |
| Priority date | — |
| Expiry date | Feb 17, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D11/0642
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Method and apparatus for casting metal strip in which molten metal is introduced between a pair of parallel casting rollers via a tundish and a metal delivery nozzle. Casting rollers are cooled so that shells solidify on the moving roller surfaces and are brought together at the nip between them to produce a solidified strip product at the roller outlet. The delivery nozzle comprises an elongate trough to receive molten metal and an outlet slot extending longitudinally along the bottom of the trough. The floor of the delivery nozzle is formed with an upwardly facing channel extending longitudinally of the trough in side by side relationship with the outlet slot. The channel merges smoothly at one of its sides with a side wall of the trough and rises at the other side above the root of the channel to the outlet slot. The side wall of the trough is disposed at an acute angle to the vertical and molten metal is supplied in free falling streams to impinge against and adhere to that side wall to form a sheet which flows smoothly downwards into the channel. The channel may be one of pair of similar channels dispose one to either side of the outlet slot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.