Patent ID: 8151866

Claim:
A method for casting NF metal baths to produce flat products with a thickness of at least 20 mm, the method comprising the following steps: providing a tundish or distribution container; providing a revolving strip-casting mould having an entry leading to a molten bath; providing at least one flow-off element connected to the tundish or distribution container for introducing a metal melt into the molten bath at the entry of the mould, the at least one flow-off element being a channel defined by a base and two sidewalls, the channel being disposed at a defined casting angle running obliquely downwards and having a central outlet opening immersed in the molten bath of the mould, the channel having a cover disposed in vicinity of the entry of the melt into the mould forming a peripherally enclosed section as a sleeve-shaped limitation of the central outlet opening, the cover extending between the two sidewalls, the channel having a partially or completely open upper surface upstream of the cover; continuously feeding a liquid metal melt from the tundish into the molten bath of the mould substantially by gravity with the at least one flow-off element while defining a free space above a top surface of the at least one flow-off element; conducting a flow of the melt from the tundish continuously to a bath level of the mould at a defined casting angle of up to 15° running obliquely downwards along the at least one flow-off element at a constant or decreasing speed; conducting the melt below a pool of the mould without further influence on a flow rate; the cover preventing vortexes generated when the melt hits a bath surface from extending two-dimensionally within the mould; and allowing gaseous components produced during the melt flow to escape at the free space above the melt flow.