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151.发明授权公开(公告)号：US11745235B2
公开(公告)日：2023-09-05
申请号：US17270022
申请日：2019-08-15
Applicant: SMS group GmbH
Inventor： Alexander Gohr , Peter Thieven
Abstract: A stretch reducing rolling mill for rolling pipes has a plurality of roll stands arranged in series in a conveying direction of a pipe. A wall thickness measuring device determines a wall thickness progression of the pipe prior to rolling. A control unit controls respective rotational speeds of the roll stands. A pipe position measuring device is arranged in front of the roll stands and continuously measures a current longitudinal coordinate of the pipe. The measured values of the longitudinal coordinate of the pipe are transmitted to the control unit. The control unit controls the rotational speeds of the roll stands based on both the determined wall thickness progression and the transmitted measured values of the current longitudinal coordinate of the pipe, in order to compensate for wall thickness variations of the pipe. A stretch reducing rolling mill is designed to carry out the method.
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公开(公告)号：US11701695B2
公开(公告)日：2023-07-18
申请号：US17299820
申请日：2019-12-02
Applicant: SMS group GmbH
Inventor： Jürgen Klöckner
CPC classification number: B21B37/54 , B21B39/084
Abstract: A method for operating a roll stand for the stepped rolling of metal strip is described. The metal strip is initially fed into a roll stand on the infeed side, where it is step-rolled. This creates a leading and a trailing section of the metal strip, each with different thicknesses. After the roll stand, the step-rolled metal strip initially passes through an outfeed-side strip accumulator before it is wound into a coil by an upcoiler. The outfeed-side reel is controlled to a constant strip tension. To keep the outfeed-side strip tension sufficiently constant even in the case of rapid changes in the size of the roll gap and the resulting rapid changes in thickness in the rolled metal strip the control of the strip tension with the aid of the upcoiler is supplemented by a position control for a roller unit in the outfeed-side strip accumulator.
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公开(公告)号：US20230205185A1
公开(公告)日：2023-06-29
申请号：US17924788
申请日：2021-05-12
Applicant: SMS group GmbH
Inventor： Carsten Andreas KLEIN
IPC: G05B19/418
CPC classification number: G05B19/41835 , G05B2219/31395
Abstract: A system for controlling a production plant includes a plant automation unit for monitoring and control of the production process within the production plant. A production planning system has information concerning the products to be produced. A model generator generates at least one prediction model for products produced in the production plant. The model generator takes into account the results of the monitoring of the production plant when generating the at least one prediction model. A production optimizer determines an optimized production process within the production plant on the basis of data from the plant automation unit, the production planning system, and the prediction model generated by the model generator. The production optimizer takes into account the production-related specifications of the individual plant parts. A production plant control unit generates target specifications for the plant automation unit on the basis of the optimized production process determined by the production optimizer.
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公开(公告)号：US20230201900A1
公开(公告)日：2023-06-29
申请号：US18020926
申请日：2021-06-30
Applicant: SMS group GmbH
Inventor： Walter KIRCHNER , Paolo MARIN , Patrizio RINALDI
Abstract: A device for handling mandrel rods in a rolling plant for rolling seamless tubes comprises an inserter. The inserter moves a mandrel rod in a rolling direction such that the mandrel rod, starting from an initial state, is pushed into a tube blank situated upstream of the mandrel rod. A retaining device has a fixing unit that is movable along the rolling line and is designed to temporarily hold the mandrel rod at an action point at a rear end of the mandrel rod and to carry out a working stroke. The mandrel rod can be inserted into the rolling mill in the rolling direction and pulled out of the rolling mill counter to the rolling direction by the retaining device. The retaining device is designed such that the starting position of the fixing unit lies between the two ends of the mandrel rod in the initial state.
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155.发明公开公开(公告)号：US20230193442A1
公开(公告)日：2023-06-22
申请号：US16764234
申请日：2018-11-06
Applicant: SMS GROUP GMBH
Inventor： Frank MASCHLER , Lutz KUEMMEL , Jean-Pierre CRUTZEN
Abstract: Method for the preoxidation of high-strength strip steel. The invention relates to an improved method for the preoxidation of high-strength strip steel in a reaction chamber arranged in a furnace chamber. The reaction chamber is sealed at a strip entrance and a strip exit against gas exchange between the furnace chamber and the reaction chamber, and a gas that forms an oxidizing atmosphere in the reaction chamber is introduced, and the gas is continuously circulated within the reaction chamber
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Patent Agency Ranking
公开(公告)号：US20230130543A1
公开(公告)日：2023-04-27
申请号：US17914138
申请日：2021-03-26
Applicant: SMS group GmbH
Inventor： Hardy JUNGEN , Ulf SERODE , Karl THOELKE
Abstract: To provide methods, apparatuses and drawing mandrels in which the shaping process can be monitored as closely as possible, a drawing machine and a drawing method manufactures or processes tubes, which extend in the direction of longitudinal extent, from a semi-manufactured product, wherein the drawing machine includes a drawing device for drawing a hollow workpiece formed by the tube and the semi-manufactured product in the direction of longitudinal extent, a drawing ring and a drawing mandrel and acts on the workpiece in a shaping manner via the drawing mandrel and the drawing ring while the workpiece is drawn by the drawing device around the drawing mandrel and through the drawing ring. A sensor is located on the drawing mandrel, or physical properties are measured in the interior of the workpiece and/or on the drawing mandrel using a sensor on the drawing mandrel.
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公开(公告)号：US20230101959A1
公开(公告)日：2023-03-30
申请号：US17801769
申请日：2021-02-23
Applicant: SMS group GmbH
Inventor： Dennis MICHL , Alexander NEUMANN , Andreas BRENNER
Abstract: A device (1) for rolling rings, comprising: a rolling device (10) with a main roll (11) and at least one mandrel roll (13a) onto which a ring is loadable, wherein the rolling device (10) is designed to roll the ring, with the mandrel roll (13a) impacting an interior face of the ring and the main roll (11) impacting an exterior face of the ring ;and a manipulator (20) comprising at least one robot (21) designed to manipulate the ring, comprising loading the ring onto the mandrel roll (13a) and/or unloading the ring from the mandrel roll (13a).
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公开(公告)号：US20230082585A1
公开(公告)日：2023-03-16
申请号：US17801119
申请日：2021-02-22
Applicant: SMS Elotherm GmbH
Inventor： Stefan Dappen , Michael Dawidowicz
Abstract: The invention provides a method for the inductive surface layer hardening of a surface running around an annular component of a hardenable steel, which achieves uniform and uninterrupted hardening. For this purpose, a) an initial zone of the surface is surface layer hardened by it being brought to hardening temperature by means of an inductor and being quenched with a spray. b) The surface is then hardened by means of a stationarily arranged inductor arrangement and a movably arranged inductor arrangement, which each comprise a leading inductor for preheating the region of the surface covered by it, a trailing inductor offset in the direction of the initial zone for finish-heating the pre-heated region to the hardening temperature and a spray for quenching the finish-heated region, wherein the movable inductor arrangement is moved along the surface and at the same time the annular component rotates about an axis of rotation in order to move the surface to be hardened along the stationary inductor arrangement. The speed of the movable inductor arrangement along the surface is greater than its circumferential speed. c) An end zone of the surface is then hardened by the leading inductor of one of the inductor arrangements being moved temporarily in the direction of the end zone at an increased feed rate compared to its trailing inductor when the end zone is located at a certain distance from inductor arrangements such that an enlarged distance results between the leading inductor and the inductor trailing it and the leading inductor is located at the end zone by a time interval earlier, whose duration is equal to the duration required by the trailing inductor to cover the distance resulting between the trailing inductor and the leading inductor such that the at least one leading inductor arriving first at the end zone preheats the end zone until the trailing inductor is located at the end zone and finish-heats the end zone to hardening temperature. Finally, the finish-heated end zone is quenched by means of a spray.
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公开(公告)号：US20230060110A1
公开(公告)日：2023-02-23
申请号：US17784354
申请日：2020-12-11
Applicant: SMS group GmbH
Inventor： Jens KREIKEMEIER , Gokhan ERARSLAN , Stephan FISCHER , Joachim HAFER
Abstract: A hot-rolling stand (10) for a hot-rolling mill comprises an adjusting device (12), which is intended for receiving a pair of work rolls (17) and for positioning work rolls (18, 19; 20, 21) of the pair of work rolls (17) in relation to one another to define a roll gap. In order to create a hot-rolling stand (10) that can be adapted as flexibly as possible, the adjusting device (12) is designed to interchangeably accommodate, in the pair of work rolls (17), different roll diameter ranges by means of mutually complementary work rolls (18, 19; 20, 21).
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160.发明申请公开(公告)号：US20230056053A1
公开(公告)日：2023-02-23
申请号：US17784302
申请日：2020-12-03
Applicant: SMS group GmbH
Inventor： Gokhan ERARSLAN , Jens KREIKEMEIER , Joachim HAFER , Kerstin SPILL
IPC: B21B13/22
Abstract: A modular rolling train, particularly a hot rolling train, preferably in conjunction with an upstream casting facility, and a method for operating a modular rolling train are described. The rolling train is standardized and modularized by dividing the rolling train into discrete units n and by modularization of the discrete units. The rolling train can be flexibly adapted to new requirements by exchanging a module.
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