Primetals Technologies Germany GmbH

A rolling mill that includes at least one roll stand and a pay-off reel arranged upstream of the roll stand. A metal strip is unreeled and rolled in the roll stand. A particular portion (i) of the metal strip has a particular lateral offset (V) at a predetermined distance from the roll stand. A control device determines a particular manipulated variable (C) by evaluating the particular lateral offset (V) for at least one actuator associated with the roll stand, and controls the actuator in accordance with the determined particular manipulated variable (C). Contour information (K) relating to the lateral offset (V) of the portions (i) over the entire length of the metal strip is made available to the control device even before the metal strip is fed to the roll stand, and the control device determines the particular lateral offset (V) based on that contour information (K).

An electrolysis device includes two electrolysis units, which each includes two end plates. The electrolysis units each includes an intermediate plate approximately or exactly in the middle between its end plates and each includes a stack of series-connected electrolysis cells between the intermediate plates and the end plates. Each stack of electrolysis cells includes two electrodes, at which an electrolysis liquid is partially electrolytically split, so that the remaining electrolysis liquid is admixed with a respective electrolysis gas in the area of the two electrodes after the electrolytic splitting. The end plates are electrically connected to one another at least in pairs. The electrolysis device includes a rectifier unit, which provides two potentials (P 1 , P 2 ) via two outputs, each output being electrically connected to one terminal of the intermediate plate of the one electrolysis unit and to one terminal of the intermediate plate of the other electrolysis unit.

A rolling stand for rolling a hot aluminium strip, having at the outlet side, in this order, a trimming device that cuts the metal strip from both sides such that only the remaining central region of the metal strip is fed to the downstream devices; a front deflection roller that deflects the metal strip away from a direct connecting line between the rolling stand and the rear deflection roller; a measuring assembly that has a mechanical excitation device that excites the metal strip to mechanically oscillate in the direction of its thickness and a measuring device that senses, for a plurality of regions of the metal strip lying adjacent to one another in the direction of the width of the metal strip, the amplitude of the excited mechanical oscillation of the respective region; and a coiling device that has a rear deflection roller upstream of a coiler.

The invention relates to a cooling device with coolant jets having a hollow cross section. A treatment line for a flat, elongate, hot rolling stock made of metal has a finishing train for rolling the rolling stock and a cooling device. The cooling device can, as required, be located upstream or downstream of the finishing train or within the finishing train. The cooling device has a first cooling bar, which extends fully over the rolling stock, seen in the width direction of the rolling stock. The first cooling bar has, facing the rolling stock, several coolant outlets by means of which water is applied to the rolling stock. The coolant outlets are arranged in the first coolant bar in a positionally fixed manner extending in at least one width direction (y) of the rolling stock and each have, within the respective row, a predefined distance from one another.

A roll stand of a rolling mill is supplied with a metal strip by an upstream supply device at an in-feed speed (v), with said metal strip being rolled in the roll stand. A measuring device between the supply device and the roll stand detects a respective thickness value (d) of the metal strip for consecutive sections of the metal strip and supplies said value to a control device of the rolling mill. The control device determines final thickness deviations based on the preliminary thickness deviations. The control device determines a respective control value (A 2 , A 3 ) for the roll stand and/or the supply device for the sections of the metal strip based on the final thickness deviation of the respective section of the metal strip and the final thickness deviations of multiple preceding and/or subsequent sections of the metal strip.

Apparatus and method for controlling and/or monitoring a technical installation for producing and/or processing metal, having an assistant program with at least one interface for connection to application programs, wherein the assistant program receives a request for an item of information relating to the installation from at least one requesting application program via the interface, wherein the assistant program can access a data model that provides a suggestion of which information can be provided by at least one further application program. The assistant program determining, based on the request and on the data model, which application program can provide the requested information, wherein the assistant program transmits the request to the at least one determined application program which can provide the requested information, wherein the assistant program receives a response from the determined application program, and wherein the assistant program outputs the received response to the requesting application program.

A device for cooling a metal rolling stock ( 1 ) rolled in a rolling train, having multiple cooling devices ( 4 ), to which water ( 5 ) is supplied via a respective branch line ( 7 ) and by means of which the water ( 5 ) is applied to the rolling stock ( 1 ). The branch lines ( 7 ) are equipped with a respective valve ( 8 ), by means of which the water flow flowing through the respective branch line ( 7 ) is adjusted. Each of the valves ( 8 ) is paired with a drive ( 9 ), via which the respective valve ( 8 ) is actuated. The cooling devices ( 4 ) form multiple groups, each of which is paired with a dedicated pressure vessel ( 10 ) in a proprietary manner. Each pressure vessel ( 10 ) is connected to a respective feed line ( 12 ) at a respective connection point ( 11 ), and the water ( 5 ) is supplied to the branch lines ( 7 ) of the cooling devices ( 4 ) of the corresponding group via said feed line. When viewed in the flow direction of the water ( 5 ), each connection point ( 11 ) is arranged upstream of the valves ( 8 ) of the respective group of cooling devices ( 4 ).

A control device for a section of a hot rolling mill is supplied with respective primary data for a plurality of rolling materials and respective preliminary target values for the target variables of the respective rolling material. The respective primary data describes the respective rolling material before being supplied to the section of the hot rolling mill. The respective preliminary target values of the target variables describe a desired target state of the respective rolling material after passing through the section of the hot rolling mill. At least one of the target variables is a particular target variable, whereby the control device determines a respective final target value in such a way that it changes the respective preliminary target value by a respective offset. The respective offset is determined independently of the primary data and the other particular target variables and the normal target variables for the respective rolling material.

Sensors detect states of units of a plant for producing and/or treating a rolled product made of metal and transmit them to an automation system. The state signals (Z) are, in part, dimensional signals. The automation system determines, by taking into account the state signals (Z), control signal signals (S) for actuators associated with the units and actuates the actuators accordingly. The automation system includes at least one model-based system which models the behavior of the system and/or of the rolled product in real time. The automation system transmits the state signals (Z), the control signals (S) and/or signals derived therefrom at least in part via an open data network to a human-machine interface arranged at an operating location. The transmitted signals comprise at least one of the dimensional signals. The automation system takes specifications (V) from the human-machine interface in determining the control signals (S).

A dynamic production planning method for a continuous casting plant for casting a strand with a production system which has a predefined production plan, which method includes comparing target production parameters with actual production parameters. If the actual production parameters deviate from the target production parameters, a strand image is created on the basis of actual production parameters. With the aid of the calculated strand image, a check is carried out within the predefined production plan and, if possible, a new production plan is created. If no solution can be found from the predefined production plan, the strand image is transmitted to a production planning system. The production planning system creates a new production plan from all available orders on the basis of a predefined optimization criterion. The new production plan is subsequently transmitted to the production system.