公开(公告)号：US20230228295A1

公开(公告)日：2023-07-20

申请号：US17919275

申请日：2021-04-09

Applicant: SMS group GmbH

Inventor： Roland WILL ,  Andrej TUCAK

IPC: F16C32/06 ,  B21B13/00

CPC classification number: F16C32/0629 ,  B21B13/00 ,  F16C2322/12

Abstract: A roll stand (1) includes a roll (3), in particular a backup roll, mounted via oil film bearings (2). Each oil film bearing (2) has a sealing system for sealing the oil film bearing (2) to prevent oil leakage and a coolant ingress. The oil film bearing (2) is integrated into an oil-circulating lubrication system (4), which is fluidically connected to the oil film bearing (2) via oil feed lines (5) and an oil discharge line (6). A first sensor (11) is arranged in the oil feed line (5) and a second sensor (12) is arranged in the oil discharge line (6). The two sensors (11, 12) are designed to determine the coolant content in the relevant oil volume flow.

公开(公告)号：US20230212708A1

公开(公告)日：2023-07-06

申请号：US17927975

申请日：2021-05-03

Applicant: SMS group GmbH

Inventor： Frank MASCHLER ,  Andreas BÖTTCHER ,  Pierre-Yves HALLEUX

IPC: C21D9/60 ,  C21D8/12 ,  C21D1/42 ,  C21D9/56 ,  C21D1/76 ,  C21D6/00 ,  F27B9/28 ,  F27D11/06 ,  F27B9/36 ,  F27B9/30

CPC classification number: C21D9/60 ,  C21D8/1272 ,  C21D1/42 ,  C21D8/1283 ,  C21D9/561 ,  C21D1/76 ,  C21D6/008 ,  F27B9/28 ,  F27D11/06 ,  F27B9/36 ,  F27B9/3005

Abstract: A method for the recrystallisation annealing of a non-grain-oriented electric strip (2) in a continuous annealing and coating line (1) is presented. Therein, the electric strip (2) is heated in an induction furnace (5) to a temperature of at least 680° C. at a heating rate of at least 80 K/s and then, in an optional second continuous furnace (8), to a temperature of at least 820° C. at a heating rate of at most 20 K/s. The electric strip (2) is initially heated before the induction furnace (5) via a first continuous furnace (3) to a temperature of at least 300° C. at a heating rate of at most 60 K/s.

公开(公告)号：US20230175087A1

公开(公告)日：2023-06-08

申请号：US17922236

申请日：2021-03-02

Applicant: SMS group GmbH

Inventor： Jochen SCHLÜTER ,  Ralf NÖRTHEMANN ,  Thomas HENKEL ,  Paul TOCKERT

IPC: C21B13/12 ,  C21B13/00 ,  C21B5/04

CPC classification number: C21B13/12 ,  C21B13/008 ,  C21B5/04

Abstract: A method for producing liquid pig iron comprises: i) providing a DRI product with an iron content of at least 75.0 wt. %, a carbon content of at least 0.10 wt. % and a content of acidic and basic slag components, comprising CaO, SiO2, MgO and Al2O3 of max. 15.0 wt. %; ii) supplying the DRI product, adding slag formers, into an electrically operated smelting unit; iii) optionally supplying further iron and/or carbon components into the electrically operated smelting unit; iv) smelting the DRI product and optionally the further iron and/or carbon components in the presence of the slag formers, so that a liquid pig iron phase and a liquid slag phase are formed; v) adjusting the slag phase such that it has a basicity of (CaO+MgO/SiO2) from 0.95 to 1.5; vi) tapping the liquid pig iron phase; and vii) tapping and granulating the slag phase.

公开(公告)号：US11648597B2

公开(公告)日：2023-05-16

申请号：US17283267

申请日：2019-10-10

Applicant: SMS group GmbH

Inventor： Alexander Gohr ,  Peter Thieven

IPC: B21B37/16

CPC classification number: B21B37/165

Abstract: A controller (2) and method for controlling a stretch-reducing mill (1) for rolling tubes are presented. The stretch-reducing mill (1) has several roll stands (10) arranged behind one another in a conveying direction (F) of the tubes (R) and at least one outlet-side wall thickness measuring device (20). The controller (2) is set up to receive measurement data from the wall thickness measuring device (20) which identifies one or more outlet-side wall thicknesses (sr) of a tube (R) exiting from the last roll stand (10) and one or more of the received measurement data wall thickness on the inlet-side (sl_t), preferably to determine an inlet-side wall thickness profile of the tube (R) before entering the first roll stand (10), and preferably to calculate and control one or more of the roll stands (10), taking into account the determined inlet-side wall thicknesses (sl_t).

公开(公告)号：US11638942B2

公开(公告)日：2023-05-02

申请号：US16609292

申请日：2018-03-27

Applicant: SMS GROUP GMBH

Inventor： Johannes Alken ,  Torsten Müller ,  Peter Sudau

IPC: B21B38/00 ,  B21B99/00 ,  H02K1/2713 ,  H02K7/18 ,  H02K11/20 ,  H02K11/30

Abstract: A metallurgical device, in particular a casting installation, rolling mill or strip processing installation, including at least one machine part rotating about an axis, wherein an energy consumer that is in electrical connection with an energy source is arranged in the machine part. To supply the energy consumer with energy on a sustained basis in spite of adverse ambient conditions, the energy source is designed as a generator which is in connection with the rotating machine part for rotation therewith, wherein the generator is otherwise free of any mechanical connection with the metallurgical device and wherein the generator has a housing element, on which at least one eccentric mass arranged at a location that is at a distance radially from the axis.

公开(公告)号：US11612922B2

公开(公告)日：2023-03-28

申请号：US17047192

申请日：2019-04-04

Applicant: SMS group GMBH

Inventor： August Sprock ,  Christoph Hassel ,  Ulrich Cramer

IPC: B21B45/02 ,  C21D1/62 ,  C21D1/667 ,  C21D8/02 ,  C21D9/46 ,  C21D11/00 ,  B21B37/74

Abstract: A cooling device for cooling a metallic item and a method for operating the cooling device. Such cooling devices having a plurality of cooling bars arranged in parallel in groups for applying a coolant to the metallic item are known in the prior art. In order to be able to set a desired distribution function of the coolant over the width of the metallic item as precisely as possible, the cooling device provides that similar application regions in at least two cooling bars within a group are each formed differently with respect to their contour and/or with respect to their surface area.

公开(公告)号：US20230080412A1

公开(公告)日：2023-03-16

申请号：US17798329

申请日：2021-02-10

Applicant: SMS Elotherm GmbH

Inventor： Stefan Dappen ,  Michael Dawidowicz

IPC: C21D1/18 ,  H05B6/10 ,  H05B6/44 ,  C21D1/10

Abstract: The invention relates to a method for the inductive surface layer hardening of a surface which runs around an annular component and has an initial zone, an end zone and two intermediate zones extending between the initial zone and the end zone. The initial zone is brought to hardening temperature by an inductor and quenched by a spray. Subsequently, an inductor arrangement is moved in each case along the intermediate zone to the end zone. Each inductor arrangement includes a leading inductor for preheating the region covered by it, a trailing inductor for finish-heating the preheated region and a spray for quenching the finish-heated region. After the inductor arrangements are located at a certain distance from the initial zone, the leading inductor of at least one of the inductor arrangements is moved in the direction of the end zone at an increased feed rate compared to the trailing inductor. The leading inductor thus reaches the end zone by a time interval earlier, whose duration is equal to the duration required by the trailing inductor to overcome the distance previously resulted between said trailing inductor and the leading inductor. In the meantime, the end zone is preheated by the leading inductor that reached it. When one of the trailing inductors of the inductor arrangements has arrived in the end zone, it heats the end zone to the finished hardening temperature.

公开(公告)号：US20230057403A1

公开(公告)日：2023-02-23

申请号：US17797523

申请日：2021-02-01

Applicant: SMS group GmbH

Inventor： Jörg LINDBUECHL ,  Heinz-Willi GREUEL ,  Elmar MOSTERT ,  Johannes Jacobus Maria VAN SANTEN ,  Rolf HAFFNER

IPC: B21B37/16

Abstract: The disclosure relates to a device and a method for adjusting or setting a rolling gap of a two-roll straightening machine for rods and/or profiles.

公开(公告)号：US20230049065A1

公开(公告)日：2023-02-16

申请号：US17784326

申请日：2020-12-18

Applicant: SMS group GmbH

Inventor： Jens ARTEL ,  Sebastian SEEGERS ,  Christian DORNSCHEIDT ,  Lutz KÜMMEL ,  Jens SZONN

IPC: B23K26/211 ,  B23K26/32 ,  B23K35/02 ,  B23K35/22

Abstract: A butt joint deep penetration laser welding method is used for joining facing end sections of flat steel products, each having a carbon content CS

公开(公告)号：US20230032960A1

公开(公告)日：2023-02-02

申请号：US17537329

申请日：2021-11-29

Applicant: SMS group GmbH

Inventor： Steffen Krausa ,  Christian Imiela ,  William Todd Zeisler

IPC: C21C5/46 ,  C21C5/50

Abstract: A converter includes a container and a supporting ring. A suspension device for the converter has a central structure fixed to the container. A first lateral structure is arranged at a first side of the central structure and fixed to a surface of the supporting ring. A second lateral structure is oppositely arranged. First and second sliding blocks are respectively connected with the first and second lateral structure. A first contact body is connected with the central structure by a first threaded bolt which engages a threaded hole in the central structure and a threaded hole in the first contact body. A second contact body is connected with the central structure by a second threaded bolt which engages a threaded hole in the central structure and a threaded hole in the second contact body. A distance element is arranged between the central structure and the first and/or second contact body.