Abstract: A device for grinding a continuously cast product, in particular a slab (11), a billet or a block. The Device has at least one rotationally operated abrasive disk (10), which is attached to a grinding head (15). At least one high-pressure air nozzle (14) is arranged on the grinding head (15). The high-pressure air nozzle blows the continuously cast product free of particles adhering to or lying on the continuously cast product prior to grinding.

Abstract: A copper mold or copper mold plate and also a process for reconditioning such worn molds or mold plates, which are used for the continuous casting of metals or metal alloys is provided. An electrolytically applied copper coating is provided on the inner wall of the mold or on that side of the mold plate which faces toward the casting strand.

Abstract: A grinding wheel has an inner core part and an outer annular grinding part connected the inner core part. The outer grinding part is made of a granular abrasive medium and plastic or glass fibers. The fibers form between 0.15% and 1%, preferably 0.2% to 0.4%, by weight of the grinding part.

Abstract: The invention relates to a device and a method for drawing off liquids and/or suspensions below the surface of water, with a bell element disposed at the end and a suction pipe disposed thereon. According to the invention, at least one compressed air supply line (4) discharges into the suction pipe (3) or into the bell element (2) in the lower region of the device. Preferably a plurality of compressed air supply lines is used, said supply lines discharging at spacings in the axial direction of the suction pipe and being acted upon by compressed air in succession from the top to the bottom.

Abstract: The invention relates to a lifting magnet (11), comprising an emergency power source (121) effective during a mains power failure, said emergency power source having a plurality of high-performance capacitors (12), preferably double-layer capacitors, and to a method for the emergency power supply of a lifting magnet comprising a mains voltage (10), a transmitter (32), a receiver (33) with a relay (311) and an emergency power source (121). According to the invention, the transmitter modulates a (high) frequency test signal (34) on the mains voltage, said test signal being received and evaluated by a receiver connected to the mains voltage, wherein the receiver has a relay, by means of which the emergency power source is connected to the mains voltage when the receiver does not receive the received test signal.

Abstract: A continuous-casting mold has an inner mold tube having a plurality of side walls formed with coolant passages and a plurality of profiles extending longitudinally on each of the side walls and each formed with a respective plurality of longitudinally spaced undercut grooves. An outer jacket surrounds the mold tube. Respective connectors each have a base generally complementarily fitting in a respective one of the grooves and a tubular and internally threaded body projecting outward from the respective base. Respective screws engage from outside through the jacket into the bodies.

Abstract: A copper mold or copper mold plate and also a process for reconditioning such worn molds or mold plates, which are used for the continuous casting of metals or metal alloys is provided. An electrolytically applied copper coating is provided on the inner wall of the mold or on that side of the mold plate which faces toward the casting strand.

Abstract: The invention relates to a process for producing binderless briquettes from metal chips and metal dusts in which the metal chips are pressed into a cup-shaped form and the upwardly open cavity produced as a result is filled with metal dust, after which the opening is closed with a cover consisting of pressed metal chips.

Abstract: The invention relates to a lifting magnet (11), comprising an emergency power source (121) effective during a mains power failure, said emergency power source having a plurality of high-performance capacitors (12), preferably double-layer capacitors, and to a method for the emergency power supply of a lifting magnet comprising a mains voltage (10), a transmitter (32), a receiver (33) with a relay (311) and an emergency power source (121). According to the invention, the transmitter modulates a (high) frequency test signal (34) on the mains voltage, said test signal being received and evaluated by a receiver connected to the mains voltage, wherein the receiver has a relay, by means of which the emergency power source is connected to the mains voltage when the receiver does not receive the received test signal.

Abstract: The invention relates to a process for producing binderless briquettes from metal chips and metal dusts in which the metal chips are pressed into a cup-shaped form and the upwardly open cavity produced as a result is filled with metal dust, after which the opening is closed with a cover consisting of pressed metal chips.

Abstract: The invention relates to a flame burner having a nozzle (10) disposed in a head, wherein in addition to annularly disposed gas supply channels (11) the nozzle has a central gas supply opening (12), which has a laval nozzle-like region and a stabilizing region having a consistent diameter connected thereto in the flow direction. In order to flame burn a metallic surface the oxygen gas guided through a central nozzle of a flame burner is incited to oscillate in such a manner, such that a pulsating oxygen flow exiting the nozzle mouth is formed at the speed of sound, or at supersonic speed.

Abstract: The invention relates to a gas burner nozzle for flame work, with a central oxygen supply consisting of several pipes (13) and with several pipes (11, 12) arranged around the aforementioned oxygen supply for the supply of fuel gas. According to the invention, the pipes for the oxygen supply are arranged in groups, with the individual groups arranged coaxially and at a distance from each other, and with each group consisting of at least two rows of pipes arranged in the form of concentric rings.

Abstract: The invention relates to a device for protecting buildings or installations from external influences by means of wire cables that are stretched around at least part of the building or installation. According to the invention, the wire cables are subjected to a tractive force, and the ends thereof or the extensions thereof are arranged in a clamping body comprising a guide that is embodied in such a way that, when the tractive force increases, the resistance force (reaction) opposed by the clamping body grows in an essentially proportional manner.

Abstract: A load-lifting magnet for lifting, turning, and transporting a wound body comprising a soft-magnetic material, in particular a coil, with a plurality of magnetic poles. In accordance with the invention, magnetic poles are arranged at right angles to each other on a common support body so that they can hold both one end face of the wound body as well as the surface and in that the support body has a rotating apparatus that permits 90° rotations of the wound body while it is suspended.

Abstract: An ingot mold for continuous casting of metal strips or thin slabs has a funnel-shaped, charged are which is tapered to the format of the cast strand, and two ingot mold plates which are deformed in relation to each other and which have curved pouch-type broad side wall sections. The curvature of the curved pouch-type broad side wall sections is elliptical in the cross-section thereof.

Abstract: The invention relates to a device for protecting buildings or constructions against outer influences, whereby at least around one part of the building or construction wire ropes are stretched.

Abstract: The invention relates to an ingot mould for continuous casting of metal strips or thin slabs, comprising a funnel-shaped, charging area which is tapered to the format of the cast strand, and two ingot mould plates which are deformed in relation to each other and which have curved pouch-type broadside wall sections. According to the invention, the curvature of the curved pouch-type broadside wall sections is elliptical in the cross-section thereof.

Abstract: A method of cutting a body made of a metal or metal alloy which comprises heating the body to or drawing cutting to a temperature at least equal to 200° C. The metal body can be a continuously cast steel slab.

Abstract: An apparatus grinding a steel billet to remove surface cracks. The billet is advanced in the direction of it longitudinal axis while being rotated. The apparatus includes a grinding wheel mounted in a bearing in a movably mounted support member. In order to accurately and simply control the penetration depth of the grinding wheel, a stop member is mounted on the support member. In one embodiment, the stop member is a segment of a circle mounted eccentrically relative to the grinding wheel. In another embodiment, the stop member is a segment of a spiral mounted coaxially with the grinding wheel. The stop member engages the surface of the billet. Two arrangements are described for rotating the billet at an increased speed while grinding the edge regions.

Abstract: A continuous casting chill mold, for the continuous casting of metals, particularly of steel, comprises a water-cooled interior section and an outer jacket section which avoids the problems associated with the machining of the cooling channels and at the same time reduces wastage, in that the interior section is produced by chipless (i.e. non-machining) production methods as a thin-walled sleeve having a dense microstructure, the interior section is surrounded by a coiled cooling pipe which, together with the interior section, is positively materially bonded to the outer jacket section consisting of copper applied by casting techniques. Neither in the cooling zone nor in the wall region of the mold cavity is there any risk of cutting into pores or pipes because all chip-removing machining is dispensed with.