Mannesmann Aktiengesellschaft

Gustav Wiegard Maschinenfabrik

Gerd Diederich

Fritz-Peter Pleschiutschnigg

Hans Schrewe

Hans Gruner

Hans Butz

Lothar Parschat

Fritz P Pleschiutschnigg

Dietmar Lohse

Hans-Juergen Ehrenberg

Karl Holter

Peter Wahls

Engelbert Weins

Claus-Dieter Haufe

Rolf Solmecke

Hans Husselmann

Frithjof Schauffele

Casting spout for metallurgical vessels

The particular pipe is provided with a system of blind bores being gas conductively interconnected and an inert gas is fed to this duct and channel system to traverse the gas permeable material of which the pipe is made to emerge particularly from surfaces in contact with molten steel to thereby prevent the precipitation of deposits, particularly on the inside of the pipe, but also on the outside surface thereof where being submerged in the bath of molten steel.

Injection and feeder pipe for apparatus for continuous casting of steel

A pipe like feeder nozzle for injecting molten steel into a mold for continuous casting is constructed from a refractory material and has its lower part covered with a porous e.g. fibrous, refractory cover bonded to the feeder pipe by a refractory bonding agent.

Charging a mold for continuous casting

The apparatus includes a parallelogram-like foldable frame, opposite corners of which carry centering rollers to position the frame between two opposite track rollers; feelers measure the distance to the latter. The frame can be hung between the tracks or can be self-propelled by a belt drive. Some of the centering rollers can be used for reeling tests of the track rollers.

Apparatus for measuring gap width of dual roller track

Molten steel pouring from a ladle into a tundish is surrounded by a vessel which is pressurized to maintain an excess pressure of an inert gas and/or a gas or vapor of a material that treats the steel, e.g., for deoxidizing, desulfurizing and/or other cleansing action. The excess pressure per se inhibits any reoxidation. Reactant material is fed to the chamber at a rate to maintain the excess pressure and/or to ensure sufficient presence of reacting material commensurate with the amount of steel passing through.

Treating a stream of molten metal

Continuously cast ingots are spray-cooled by a fanned-out flow of water which has been accellerated by pressurized air with an original nozzle direction parallel to the surface of the ingot and transversely to the direction of ingot withdrawal. The arrangement avoids cooling impediment on account of the Leiden frost phenomenon.

Spray cooling of continuously cast ingots

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Erpel, Germany

Gerd Diederich