Abstract: An automation system (1) for controlling a production process in a production plant (2) in the metal production industry, the non-ferrous industry or the steel industry for producing semi-finished products or finished products comprising a plurality of plant parts (3) for carrying out separate production steps comprises, for each plant part (3), a separate control unit (4) for controlling actuators (5) and/or sensors (6) of the respective plant part (3) for the purpose of automating the production step in the respective plant part (3). The separate control units (4) of the automation system (1) comprise wireless communication means (7) for wirelessly communicating with one another.

Abstract: A method for generating hydrogen and oxygen using an electrolyzer, including at least one anode chamber having an anode and at least one cathode chamber having a cathode, wherein the at least one anode and the at least one cathode are energized by a modulated current and the generation of hydrogen and oxygen takes place within the electrolyzer using a defined pulse pattern sequence, which is formed from at least one pulse pattern.

Abstract: The invention relates to a method for casting steel having a chromium content of more than 15 wt.-%, which is characterized in that the steel is cast in a horizontal strip casting system (1) comprising a melting furnace (2), foundry ladle (3) and conveyor belt (5) for receiving and for cooling a liquid steel strip flowing from the foundry ladle (3).

Abstract: A method and continuous casting device for dynamically placing rolling segments against a cast bar made of metal, particularly steel. The continuous casting device is a bloom or billet casting device and has pairs of rollers that are placed against each other in a position-controlled and pressure-controlled manner by piston-cylinder units. The hydraulic pressure is switched from position-controlled operation to pressure-controlled operation when a threshold pressure is reached. The roller segments are arranged in the hot bar zone and the soft reduction zone.

Abstract: The invention relates to a roll (1) for metal production and/or metal processing, in particular a continuous casting roll, which has a roll parent body (2) of metal and a coating (3) of wear-resistant material applied to said roll parent body (2). In order to make the roll, in particular the continuous casting roll, especially wear-resistant, the invention provides for the coating (3) to have electrolytically applied nickel, wherein the surface (4) of the coating (3) forms the working surface of the roll (1). Furthermore, the invention relates to a method of producing a roll (1) for metal production and/or metal processing, in particular a continuous casting roll.

Abstract: A controlling and/or regulating device for a lifting table (10) supporting a continuous casting mold (5) in a continuous casting machine (1) for liquid metal, in particular for liquid steel material (3), with an oscillating drive (11) comprising a plurality of stationary piston-cylinder units (12) which are articulated at the lifting table (10), with field measuring devices (16) at the hydraulic cylinder (12a), the signals of which field measuring devices (16) are fed via electrical connections (21)) to the control/regulating station (25) and back into the associated actuators, is operated in a fieldized manner and requires less resources for cabling in spite of the large quantity of electrical connections (21) in that the respective electrical connections (21) are guided in the vicinity (30) of the lifting table (10) as cable bundles (23) to an axle regulator (31) which is connected, via a fieldbus (22), to a memory-programmable control (32) located at a distance in the control/regulating station (25).

Abstract: A controlling and/or regulating device for a supporting roll stand (2) of a continuous casting installation (1) for metals, especially for steel materials (3), comprises a plurality of successive roll segments (8) with lower frames (11) and upper frames (12) which can be adjusted relative to the other and pairs of piston-cylinder units (13). The measurement data of field devices (14) are acquired locally and processed. The controlling and/or regulating device simplifies the field cabling and the regulating concept by relocating functions to or next to a roll segment (8) in that the field devices (14) are arranged at or on the roll segment (8) or in the vicinity of the roll segment (8) at the stationary shop scaffold (17), and their measurement signals are processed by axle regulators (18) and are stored and communicate with a memory-programmable control unit (19) by a fieldbus module (20).

Abstract: A continuous casting machine (1) for steel materials has a continuous casting die (6) with a casting mold (10) formed of broad-side plates (11) and narrow-side plates (13) and at which piston-cylinder units (16) are provided as actuators and support bearings. The position of the piston-cylinder units (16) is measured by field measurement devices (21), the measurement data are stored in a control (23) of the continuous casting machine (1) via fieldbus modules (22) as BUS signals and, after being processed, are fed back to the actuators as control signals. In order to acquire and process the measurement data locally at the continuous casting die (6), it is proposed that a respective hydraulic cylinder (16a) is connected to a valve stand (24) with a stationary terminal box (25) for the measurement signal lines and control signal lines (28) and that the terminal box (25) is connected to an axis regulator (30) from which the fieldbus module (22) supplies the signals to a memory-programmable control (31).

Abstract: Disclosed are a method and a continuous casting device for dynamically placing roller segments (13 to 17) against a cast bar (4) made of metal, particularly steel. The inventive continuous casting device comprises pairs of rollers (18) which are placed against each other in a position-controlled and pressure-controlled manner by means of piston-cylinder units (19), the hydraulic pressure being switched from position-controlled operation to pressure-controlled operation when a threshold pressure is reached. In order to extend the range of applications of the inventive method, said method is applied to roller segments (13 to 17) of continuous bloom and billet casting devices, said roller segments (13 to 17) being arranged in the cold bar zone, hot bar zone, or soft reduction zone.

Abstract: The invention relates to a method for adjusting the feed opening of segments for continuous casting systems, especially position-controlled segments for slab and thin-slab continuous casting systems which comprise a strand guide (1) with segments (2) for a predetermined guidance of a cast strand using measuring and control signals. In order to provide an independent intelligent segment, the measuring and control signals are processed in at least one system unit (14?) directly on the respective segment (2) and the set values are fed to the segment (2?) by a superordinate control system (10) via a field bus (11), for example a profibus and a power supply (12?). Actual values are returned to the control system (10?) via the field bus (11) as the result of control or as a process status. The system units (14) present on the segment (21) are supplied with segment-specific data such as rigidity coefficients, roller diameter, control parameters, feed opening basic settings and adjustment quota.

Abstract: A device for hydraulic adjustment of rollers of strand guiding segments of a strand casting device has hydraulic cylinders which are separated by a piston with piston rod into a cylinder chamber and an annular cylinder chamber, respectively. The cylinder chambers can be connected by control members alternatingly and in opposite directions as well as simultaneously with a pressure source and a pressure sink, wherein on-off valves are provided as control members.

Abstract: The present invention relates to an adjusting method for a roller section of a continuous casting machine which is provided with a section input side (6), a section output side (7) and a pair of roller carriers (1, 2) which each carry at least two rollers (3) extending over a supporting zone (4), with the roller carriers (1, 2) being mutually adjusted against one another by way of an adjusting unit arranged at the section input side (6) and at the section output side (7), with each adjusting unit being provided with two hydraulic cylinder units (8 to 11) arranged on either side of the supporting zone (4), characterized in that the hydraulic cylinder units (8 to 11) can be adjusted both in a position-controlled and pressure-controlled manner; the rollers (3) are placed in a position-controlled manner by the hydraulic cylinder units (8 to 11) against a metal billet (5) which is guided by the rollers (3); the hydraulic cylinder units (8 to 11) are changed over from position-controlled to pressure-controlled o