Mannesmann Aktiengesellschaft

Klaus-Peter Ehlert

Achim Kubon

Peter Voss-Spilker

Dietmar Zebrowski

Start-up head for continuous casting in the horizontal has a coupling member that will be embedded from three sides in molten metal, the coupling member has a hooklike portion having an undercut portion below a center line of the casting and having a point of curvature inflection, the undercut portion running from that point of inflection towards the center line along a circular path having a center of curvature above a horizontal plane that runs through the center line; a front end of the hooklike portion has a circular contour beginning from a point below the center line at a distance that is about the same distance the point of inflection has from the center line, the circular contour extending to the upper side of the member has a center of curvature above the first mentioned center of curvature but a larger distance from the center line; and the center for uncoupling the member from the casting is situated between the first and second centers of curvature.

Start-up head for horizontally continuous casting

The invention provides for a lowering of sheet stock into a mold for continuous casting. The rate of cooling of the molten metal as so fed within the mold is determined by a particular mass throughput in conjunction with the surface area being offered by the sheet stock as it is being lowered into the mold. That surface area in particular will be determined by providing more than one sheet to be run into the mold in parallel relationship. Of course the number of sheets may be determined by the laminate structure being desired. It is important that the casting of metal around the lowered sheet stock occurs outside of the range of feeding molten metal into the mold. This way it is avoided that the temperature in the mold is lowered to the point of 'freezing' while on the other hand cooling is not unduly delayed.

Continuous casting of laminate products

A method of horizontal continuous casting of thin and wide ingots. The method includes providing a withdrawal or extraction length of 50 to 300 mm at a speed in excess of 3 meters per second up to 20 meters per second and holding the ingot for 1 to 5 seconds. Further, the ingot can be retracted to correspond to the length reduction due to cooling. The effect of the invention is an improvement in ingot quality.

Horizontal continuous casting method

A flame cutting rollerbed which is specifically intended for use in metal strand casting plants serves to cut metal strands longitudinally and/or transversely. A flame cutting rollerbed of this type comprises uniformly spaced support rollers which are arranged across the longitudinal motion direction of the cast strands. The support rollers are each equipped with spaced disk rollers on the edges of which the metal strands contact and are supported. In order to protect the stationary support rollers from being damaged by the flame cutting jet, it is proposed that sections between adjacent disk rollers be coated with a porous protective coating which is resistant to the heat flow of the flame cutter jet. The protective coating is either metal-porous or ceramic-porous. Furthermore, the coating may be cooled by a cooling fluid, in which case the porous protective coating forms storage spaces for the cooling fluid. Nozzles for the cooling fluid are arranged opposite the disk rollers and/or the support rollers.

Growing community of inventors

Moers, Germany

Klaus-Peter Ehlert