Mannesmann Aktiengesellschaft

Hüttenwerke Krupp Mannesmann Gmbh

Armin Burau

Fritz-Peter Pleschiutschnigg

Lothar Parschat

Werner Rahmfeld

Rainer Lenk

Gerd Moellers

Hans U Franzen

Hans-Juergen Ehrenberg

Hans-Georg Eberhardt

Manfred Pfluger

Hans G Eberhardt

Hans J Ehrenberg

Martin Zinselmeyer

A method for continuous casting of thin slab ingots with reduced thickness following immediately the casting particularly of steel under utilization of a mold which is open at the bottom and under further utilization of roller pairs arranged along the withdrawal path, at least some of them are driven and at least some of the rollers are hydraulically adjustable perpendicular from the path so as to act as ingot deforming rolls. The invention is further improved by determining the speed of driven rollers, and the pressure force of adjustable roller pairs acting against the ingot and providing feedback control for the speed and the force. Additionally, providing a master control action for the speed control such that a point of solidification is dynamically maintained in a particular geometric position as far as the passing ingot is concerned; and by limiting the adjustment of rollers as far as the gap between pairs of such rollers is concerned downstream from that point.

Method for continuous casting of thin slab ingots

A method for continuous casting metal products under utilization of a mold and pouring molten metal into the mold to obtain a flat stock with a thickness below 100 mm, includes withdrawing the partially solidified casting by at least one roll pair which reduce the thickness of the stock upstream from complete solidification by at least 10% but not more than 70% while further reduction in thickness by at least 30% obtains downstream from complete solidification is improved by requiring that the product being cast has a thickness not below 50 mm; that exclusively internally cooled rollers are used for obtaining the reduction; and that the thickness is reduced downstream from the complete solidification at a point where the temperature is only little below the solidus temperature particularly in the case of steel being a temperature between 1500 and 1200 degrees C.

Combined continuous casting and rolling

Growing community of inventors

Muelheim, Germany

Armin Burau