Mannesmann Aktiengesellschaft

Ulrich Siegers

Fritz-Peter Pleschiutschnigg

Lothar Parschat

Giovanni Arvedi

Giovanni Gosio

Werner Rahmfeld

Fritz P Pleschiutschnigg

Ernst Windhaus

Hans Butz

Luciano Manini

Peter Meyer

Klaus Bruckner

Harald Ludorff

Peter Wahls

Georg Hofmann

Hans-Gunther Thurm

Liquid-cooled ingot mold for the continuous casting of steel billets in

The invention is directed to an immersion casting pipe for feeding molten steel from a casting vessel into a mold having wide side walls and narrow side walls for the production of flat products. The immersion casting pipe has a pipe piece which adjoins the casting vessel and expands in cross section in the direction of the narrow side walls of the mold. The pipe piece is provided with a central base member at the lower end which allows for outlet openings for the melt. For the purpose of developing an immersion outlet which allows higher slab withdrawal speed of up to 6 m/min with slabs measuring 50 to 100 mm in thickness and 600 mm to 2000 mm in width, the inner wall of the portion of the immersion casting pipe which widens in cross section forms flow channels in conjunction with the opposite wall parts of the base member. The axes of the flow channels enclose an angle .alpha. between 10.degree. and 22.degree., where the smaller angle corresponds to a distance of approximately 600 mm between the narrow side walls of the mold and the larger angle corresponds to a distance of 2000 mm or more between the narrow side walls of the mold. The distance between the wide side walls of the mold is 50 to 100 mm.

Immersion casting pipe for thin slabs

A method and system for continuously producing a flat steel product from flat stock produced by the arcuate continuous casting method with a horizontal direction of emergence are disclosed. In one form of the invention, flat stock is shaped after solidification of a strand in a first shaping stage at temperatures exceeding about 1100.degree. C. The stock is then inductively reheated to a temperature of about 1100.degree. C. with approximate temperature equalization of an entire cross-section of the flat stock. The flat stock is additionally shaped in at least one additional shaping stage with rolling speeds in accordance with the stock's accompanying reduction in thickness per pass.

Method and system for continuously producing flat steel product by the

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Berlin, Germany

Ulrich Siegers