Patent ID: 7905272

Claim:
A method for producing wide strips of copper or copper alloys, which comprises the steps of: guiding a molten metal from a distribution container into a lower wide strip mold via a pour nozzle inclined at an angle; maintaining a surface of the molten metal in the distribution container at a constant level above a place where the pour nozzle is fixed in the distribution container in a range of 75 mm to 90 mm with respect to a level of a mold bath surface of the lower wide strip mold; guiding the molten metal by an ascending channel from the distribution container to the pour nozzle and the molten metal is distributed within the pour nozzle symmetrically over a width which corresponds to a width of a strip to be produced; and guiding the molten metal within the pour nozzle through at least one first flow restrictor and redirected at an exit point of the pour nozzle through a second flow restrictor in a direction of the mold bath surface and separated into numerous small individual flows in a vertical direction over an entire strip width of the lower wide stripe mold, the individual flows being carried into a molten metal bath of the lower wide stripe mold as a laminar flow which forms a wedge-type outflow profile with an opening angle, running in a direction of discharge of the lower wide stripe strip, of between 15° to 30° to the mold bath surface of the lower wide stripe mold.