Abstract: A vertical strip storage system has a support structure and a storage car connected to the support structure by cables in the fashion of a pulley block so as to be lifted and lowered relative to the support structure. The storage car is provided with a counterweight and with deflection pulleys which deflect and guide an incoming and/or outgoing strip in cooperation with stationary deflection pulleys on the ground. The support structure is a free-standing column without lateral supports and the storage car is a salient vehicle running on the outer surface of the column, wherein the column has an interior and the counterweight is guided in the interior of the column.

Abstract: A roll support frame without housing for pairs of rolls is supported on two sides in bearing chocks, wherein the roll support frame can be moved into and out of a unilaterally open housing which contains the drive transmission and adjusting devices for the rolls. The roll support frame is composed of a box-shaped element with entry and exit passages, guides for the rolling stock and support and guide elements arranged at the box-shaped element for the bearing chock pairs of each of the two rolls.

Abstract: A strand guiding segment for slab casting plants with a guiding width for the cast strand is adjustable between guide rollers of a frame on a fixed side and a frame on a detachable side, wherein the frames interact with adjusting units for overcoming the ferrostatic pressure and for adjusting the desired sectional width of the strand. The adjusting units are four independently adjustable pressure cylinders arranged outside of the radiation range at the upper side of the segment, wherein the distance between the segment middle and cylinder which determines the segment width is reduced on both sides by the dimension of the cylinder which has been moved to the upper side of the segment. The segment crossbeams are provided with radiation protection plates instead of water cooling means and cooled side frames are laterally flanged to the bottom frames.

Abstract: A mold wall of a continuous casting mold includes an inner mold plate and a water box connected to the inner mold plate through screw connections, wherein the inner mold plate has on its side facing the water box webs with grooves extending between the webs, and wherein filler pieces are arranged in the grooves. The filler pieces each have at least one expanding element for producing a frictionally engaging connection of the filler pieces to the inner mold plate. The screw connections are arranged between the water box and the filler pieces.

Abstract: A method of straightening rolled sectional steel includes clamping and subsequently cooling at least a sectional steel whose maximum local cross-sectional temperature is below Ar1 and whose minimum local cross-sectional temperature is above a lower limit temperature, wherein already the lower limit temperature produces as a result of clamping a thermal elongation in all fibers of the sectional steel which is greater than the elongation which would be required for a plastification of the fibers which would be subjected to the greatest internal compressive stresses if the sectional steel were exclusively air cooled without clamping.

Abstract: In a method for manufacturing a sidewall member of a continuous casting mold from a copper blank, wherein the sidewall member has an upper and a lower edge and a curved widened area beginning at the upper edge and tapering in a direction to the lower edge and to the sides of the sidewall member, the copper blank is hot-forged via several intermediate shapes to a rectangular plate with an initial wedge shape. The rectangular plate is then further formed by final hot-forging in a longitudinal direction of the rectangular plate with a straight saddle, having a width that is only a portion of a width of the rectangular plate measured relative to the longitudinal direction of the rectangular plate, and the curved widened area is pre-forged. Subsequently, the rectangular plate is quenched and work-hardened. The rectangular plate is then cold-hammered via a wedge-shaped bottom saddle for work-hardening a middle portion of the rectangular plate and for producing a final wedge shape of the rectangular plate.

Abstract: A continuous casting plant suitable for casting steel slabs, wherein the partially solidified strand composed of a strand shell and a partially liquid core is guided after emerging from the mold during the further solidification between the rollers of a strand guiding unit which has a loose or movable side and a fixed side, and wherein the strand shell forms in the areas between always two rollers spaced apart from each other in the casting direction a deformation in the form of a bulge with an increase of the cross-section. For compensating for an increase of the cross-section of a respective strand portion, a counter-pressure is applied from the outside against the strand area located opposite the strand portion with the increased cross-section in order to reduce the cross-section.

Abstract: In a method and a device for descaling a metal strip, the metal strip is guided in a transport direction from a first roll stand to a second roll stand. A descaling device is positioned between the first and second roll stands. A descaling liquid is sprayed onto the metal strip from a working distance relative to the metal strip via the descaling device. The metal strip is moved at the location of the descaling device by a forced deflection amount in a direction transverse to the transport direction via an advancing element. A position of the descaling device is adjusted based on the forced deflection amount such that the working distance stays the same.

Abstract: A method of rolling finished sections from preliminary sections by means of roll stand arrangements which operate in reversing operation and include a compact rolling group composed of a first universal stand at the entry side and a second universal stand at the exit side and an intermediate edging stand arranged between the universal stands, and a roughing group arranged in front of the compact rolling group and composed of vertical roll stands and horizontal roll stands and/or universal stands. A rectangular preliminary section or a preliminary section having the approximate final dimensions is preshaped in the roll stands of the roughing rolling group in a number of shape changing passes and/or shape reduction passes, possibly reversing with or without the use of selectable grooves. Subsequently, the section is further shaped in the compact rolling group in several shape changing passes or shape reduction passes in the universal stand on the entry side.

Abstract: A mold wall of a continuous casting mold is composed of an inner mold plate and a water box connected to the inner mold plate through screw connections, wherein the inner mold plate has on its side facing the water box webs with grooves extending between the webs, and wherein the grooves have a groove width and filler pieces are arranged in the grooves. The grooves of the mold plate have undercuts with an undercut thickness, the filler pieces have connecting elements with a connecting element thickness, the filler pieces engage releasably in the undercuts, and the screw connections are arranged between the filler pieces and the water box.

Abstract: A frame for supporting structural components of a blast furnace includes a bottom section connected to a foundation, a middle section and a top structure arranged above the furnace top, wherein the frame is manufactured as a latticework construction and/or framework construction and extends in four planes. The bottom section of the frame is provided in the four planes thereof with support members which extend toward each other and meet each other in a base point.

Abstract: The invention relates to a strip winder (1) for winding a hot or cold strip (25) into a coil, comprising a winder mandrel (2), pressure rolls (6-8) which can be in the form of comb rolls (6′-8′) deflection cups (9-11), and a feed shaft (20). The aim of the invention is to improve a strip winder of this type so that a hot or cold strip (25) can be wound securely on the winder mandrel (2) even at high speeds and when the strip is thin. To that end, the deflection cups (9-11) have channels (18) whose outlet openings (19) are located in the cup area and the channels (18) are connected to a medium supply system.

Abstract: A method and an apparatus for continuous casting plants for producing strands whose cross-section is reduced during solidification. The continuous casting method for producing strands, wherein the cross-section of the strands is reduced during the solidification, includes casting into a mold, particularly an oscillating mold, and reducing the strand cross-section linearly over a minimum length of the strand guiding unit immediately underneath the mold, i.e., casting and rolling, and subsequently carrying out a further strand cross-section reduction through the remaining strand guiding unit, i.e., soft reduction, up to maximum reduction immediately in front of the final solidification or sump tip.

Abstract: A continuous casting mold for casting strands, preferably of steel, includes mold plates and water boxes, and a connecting plate for connecting each mold plate to one of the water boxes. A water cooling system is formed by water conduits between the mold plates and the water boxes, wherein the water conduits are arranged in a side of the water box facing the mold plate and not in the mold plate. The water box and the connecting plate of the water box are joined together by connecting screws and nuts, wherein the connecting screws are arranged in the mold plate and the nuts are arranged on the water box. The connecting screws have internal cooling ducts and the internal cooling ducts are connected to the water conduits.

Abstract: A method and a plant for manufacturing steel in an electric steel furnace wherein the electric steel furnace is charged with at most 70% scrap and with at most 60% liquid pig iron obtained in a mini-blast furnace, and optionally with additional iron carriers, and wherein the mini-blast furnace is operated for producing the pig iron with iron pellets and/or coarse or lump ore and coke as well as coal. The melting process in the electric steel furnace is operated using electrical energy and by simultaneously using oxygen and injected coal. The plant for carrying out the method is composed of a mini-blast furnace and an electric steel furnace.

Abstract: A strand pulling-off method for a metal strand, particularly a steel strip, cast in a curved continuous casting plant, wherein the metal strand is initially vertically pulled from a casting mold, wherein a curved shape is then imparted on the metal strand in a curved entry driver driven with an entry torque, and wherein, after reaching a horizontal strand travel direction, the metal strand is finally straightened in a curved exit driver driven with an exit torque. An entry speed is assigned to the curved entry driver and an exit speed is assigned to the curved exit driver, the entry torque and the exit torque are determined, and the exit speed is adjusted in such a way that the entry torque as well as the exit torque have a positive value.

Abstract: A cooling element for shaft furnaces provided with a refractory lining, particularly blast furnaces is made of copper or a low copper alloy and is provided with coolant ducts arranged in the interior of the element. The cooling element is composed of an extruded or rolled section which in the interior thereof has a plurality of cooling ducts which are round or have a shape which deviates from the circular shape. The cooling element is provided with lateral webs. The cooling element is equipped on the side facing away from the blast furnace wall in vertical direction with at least one continuous slag rib and the cooling element is equipped on the side facing the blast furnace wall with at least one fastening rib.

Abstract: A method of manufacturing microalloyed structural steels by rolling in a CSP plant or compact strip production plant, wherein the cast slab strand is supplied divided into rolling lengths through an equalizing furnace to a multiple-stand CSP rolling train and is continuously rolled in the rolling train into hot-rolled wide strip, wherein the strip is cooled in a cooling section and is reeled into coils, and wherein, for achieving optimum mechanical properties, a controlled structure development by thermomechanical rolling is carried out as the thin slab travels through the CSP plant. For manufacturing high-strength microalloyed structural steels with a yield point of ≧480 MPa, the available strengthening mechanisms are utilized in a complex manner in order to achieve an optimum property complex with respect to strength and toughness of the structural steels, by carrying out, in addition to the thermomechanical rolling with the method steps according to U.S. patent application Ser. No. 09/095,338 filed Jun.

Abstract: A device for coupling and uncoupling the media supply lines at bearing chocks of rolls, particularly back-up rolls, mounted in roll housings, wherein the coupling elements of the media supply lines are arranged commonly in a carrier member so as to face the media connections in the bearing chock, wherein the carrier member is guided in a guide frame so as to be movable parallel to the direction of the adjustment movement of the bearing chocks, and wherein the guide frame is mounted in guide members connected to the roll stand so as to be movable in the axial direction of the rolls toward the bearing chock and away from the bearing chock.

Abstract: A method of improving the surface quality of a continuously cast slab, particularly a thin slab having a maximum cast thickness of 100 mm, wherein the slab is covered with a casting slag film and a layer of scale, and wherein the slab is descaled after casting and is rolled in a finishing train. A reaction agent, which is different from water, is applied onto the slab prior to descaling or during descaling. The application of the reaction agent may be preceded by a conventional hydraulic, mechanical or pneumatic removal of the layer of scale which covers the slab.