公开(公告)号：US20220111429A1

公开(公告)日：2022-04-14

申请号：US17496480

申请日：2021-10-07

Applicant: SMS GROUP S.p.A.

Inventor： Marcello PACHER ,  Nicola Maria TUZIO ,  Paolo MARIN

IPC: B21B13/10 ,  B21B13/04 ,  B21B17/14 ,  B21B31/18

Abstract: A rolling mill for solid elongated products, defining a rolling axis, including first and second rolling stations. Each station includes a load-bearing structure, a removable roll-holder cartridge with three rolling rolls movable radially and rotating around three equally spaced axes of rotation, and a roll having a vertical rotational axis. Three actuators mount on the load-bearing structure; three gear motor groups connect to the rolls by single extensions. The position of the second station rolls is rotated 60° from the first stations. The rolls with a vertical axis of the first and second stations are arranged on opposite sides of the rolling axis. All rolling stations allow lateral extraction of roll-holder cartridges from the same side of the rolling mill. The stations on the cartridge extraction side have actuators movable relative to the load-bearing structure. The stations with vertical rolls arranged on the opposite side have fixed actuators.

公开(公告)号：US20220082115A1

公开(公告)日：2022-03-17

申请号：US17425315

申请日：2020-01-23

Applicant: SMS group GmbH

Inventor： Michael ZIELENBACH ,  Jörn SOHLER ,  Peter HORN ,  Martin SCHMIDT

IPC: F15B11/10 ,  F15B21/08 ,  G05B19/042 ,  B21B35/00

Abstract: A hydraulic control loop controls a hydraulic adjusting cylinder. The cylinder has a cylindrical housing and a displaceable piston therein. The piston divides the housing interior into a first and a second hydraulic chamber. A first hydraulic valve supplies the first hydraulic chamber with hydraulic fluid. A hydraulic pressure of the first hydraulic chamber is adjustable by controlling the first hydraulic valve. A second hydraulic valve supplies the second hydraulic chamber with hydraulic fluid. A hydraulic pressure of the second hydraulic chamber is adjustable by controlling the second hydraulic valve. A control device controls the two hydraulic valves. In a position control state, the second hydraulic valve is controlled by a position control signal dependent on the working position of the piston and the first hydraulic valve is controlled by an adjusted position control signal, that is generated on the basis of the position control signal.

公开(公告)号：US11260440B2

公开(公告)日：2022-03-01

申请号：US15989270

申请日：2018-05-25

Applicant: SMS group GmbH Sitz Duesseldorf

Inventor： Thomas Cmiel ,  Joerg Lindbuechl ,  Dirk Hessberger

IPC: B21C1/30 ,  B21C1/28 ,  B21C1/20

Abstract: A caterpillar-traction drawing machine and a method for drawing of elongated workpieces can be provided with at least one drawing tool fastened pivotally on a tool holder and/or with at least two identical drawing recesses, which can be brought selectively into a drawing position, so that the influence of any fatigue phenomena that may exist is minimized. For the same reason, a caterpillar-traction drawing machine is advantageous in which the two chains of the caterpillar-traction unit are block chains and are respectively braced via an idler roller chain including idler rollers on respectively one pressing beam.

公开(公告)号：US11241710B2

公开(公告)日：2022-02-08

申请号：US16635615

申请日：2018-07-11

Applicant: SMS group GmbH

Inventor： Henry Görtz ,  Matthias Kretschmer ,  Lutz Kümmel

IPC: B05D1/06 ,  B05C11/10 ,  B05C19/02 ,  B05C9/04 ,  B05D3/02 ,  B05D7/14

Abstract: A device for coating a metal strip substrate includes a guiding apparatus for guiding the strip substrate along a movement path. A first coating apparatus coats a first main side of the strip substrate with an electrostatically charged coating powder which is in a fluidized state. The first coating apparatus is arranged under a first path section of the movement path. A second coating apparatus coats a second main side of the strip substrate with an electrostatically charged coating powder which is in a fluidized state. A redirecting unit redirects the strip substrate between the first and the second coating apparatus in such a way that the strip substrate in a second path section travels oppositely to the strip substrate in the first path section. The second coating apparatus is arranged at least partly geodetically under the second path section.

公开(公告)号：US20210379637A1

公开(公告)日：2021-12-09

申请号：US16980699

申请日：2019-02-07

Applicant: SMS GROUP GMBH

Inventor： Johannes ALKEN ,  Henning BERG ,  Jens KIESSLING-ROMANUS ,  August SPROCK

IPC: B21B45/02 ,  G05D7/06

Abstract: A cooling group for a laminar cooling device, including at least one cooling unit arranged above and below a strip to be cooled in order to supply the strip with a cooling liquid, including a central inlet via which cooling liquid is supplied, a distributing tube supplied with cooling liquid by the central inlet, and a number of supplying units supplied with cooling liquid from the distributing tube. Each supplying unit has a number of cooling nozzles via which cooling liquid is discharged onto the strip. In order to minimize the influence of the number of supplying units which are switched on or switched off, and thus have as little expenditure as possible, a volumetric flow rate regulating valve is arranged in or in front of the central inlet. The regulating valve is used to conduct a defined volume of cooling liquid through the central inlet per unit of time.

公开(公告)号：US20210310737A1

公开(公告)日：2021-10-07

申请号：US17264550

申请日：2019-07-15

Applicant: SMS GROUP GMBH

Inventor： Björn KINTSCHER ,  Karl HOEN ,  Markus PIEPER

IPC: F27D3/02 ,  F27B9/24

Abstract: A roller for a roller hearth furnace, the roller including a water-cooled, rotatably mounted carrying axle on which a plurality of support rings are arranged at a spacing from one another. In the axial region between and next to the support rings, the carrying axle is provided with insulation composed of a fiber material and configured with protection of the outer circumference of the fiber material from the environment. In the case of insulation constructed from ring-shaped punched parts, the insulation arranged in the axial region between and next to the support rings is composed of circular or ring-shaped punched fiber parts. The protection is configured as ring-shaped insulating disks composed of a more resistant material than that of the punched fiber parts, and at least one punched fiber part is provided in each case between two insulating disks.

公开(公告)号：US20210308731A1

公开(公告)日：2021-10-07

申请号：US17261118

申请日：2019-07-18

Applicant: SMS group GmbH

Inventor： Jürgen SEIDEL ,  Uwe BAUMGÄRTEL ,  Ralf WACHSMANN ,  Peter BONEKEMPER

IPC: B21B37/42 ,  B21B13/14 ,  B21B1/26

Abstract: A method ascertains control variables for active profile and flatness control elements for at least one rolling stand for hot rolling metal strip with a plurality of i=1 . . . I successive passes and for ascertaining profile and center flatness values for the hot-rolled metal strip. The occurrence of fluctuations in the center flatness of the metal strip after the individual passes and the resulting disadvantages for the rolling stability and the product quality are prevented. The method provides that, also for the target center flatness of the metal strip after a predetermined pass k with i=1 . . .

公开(公告)号：US20210293259A1

公开(公告)日：2021-09-23

申请号：US17259488

申请日：2019-07-12

Applicant: SMS group GmbH

Inventor： Reiner STAMMBERGER

IPC: F15B19/00 ,  F15B21/0423

Abstract: A method for monitoring the condition of a hydraulic system of a metal forming plant is presented. The hydraulic system is coupled to or provided with a pump drivable by a drive motor for providing a working fluid and with a heat exchanger. With the presented method, the following steps are initiated or carried out by a condition-monitoring device during the operation of the hydraulic system: Determining a current cooling power of the heat exchanger; determining a current conveying power of the pump; and determining a current maintenance urgency and/or a current ageing condition of the hydraulic system on the basis of the determined current cooling power of the heat exchanger. Furthermore, a condition-monitoring device designed to carry out the presented method is presented.

公开(公告)号：US20210283668A1

公开(公告)日：2021-09-16

申请号：US16330414

申请日：2017-08-22

Applicant: SMS Group GmbH

Inventor： Christoph Klein

IPC: B21B1/46 ,  B21B15/00 ,  B21B39/00

Abstract: In the case of a production plant which comprises in series a thin-slab continuous casting plant (1), which is arranged upstream of a roller hearth furnace (2), the roller hearth furnace (2) and a rolling mill (3), which is arranged downstream of the roller hearth furnace (2) and has an assigned reeling plant (21), wherein the continuous casting plant (1) and the rolling mill (3) can be operated in a continuous operating mode, the intention is to provide a solution that allows a slab buffer capacity to be provided for a continuously operated thin slab continuous casting plant when there is a fault causing a standstill in the transport of the slab or strip. This is achieved by the production plant having four slab or strip cutting devices (10, 14, 17, 24), which are arranged upstream and downstream of the roller hearth furnace (2), in a section along the length of the roller hearth furnace (2) and on the outlet side of a first separate roll line (12) of the rolling mill (3).

公开(公告)号：US11117173B2

公开(公告)日：2021-09-14

申请号：US16462807

申请日：2017-11-10

Applicant: SMS GROUP GMBH

Inventor： Stefan Wendt ,  Martin Schmidt ,  Michael Zielenbach

IPC: B21B13/06 ,  B21B31/22 ,  B21B38/00 ,  B21B37/62 ,  B21B31/20

Abstract: An adjusting cylinder quick-action adjustment for a long, rapid stroke movement in an edging stand which includes an edger upright, adjustment system, balancing system and edging roll sets, comprises a piston which acts via edging roll chocks of at least one edging roll for adjustment against the rolling stock. The adjustment of the edging roll can be actuated on each side hydraulically by a fluid. The adjusting cylinder quick-action adjustment is mounted in the edger upright and exerts the force required for the edging process. The adjusting cylinder quick-action adjustment includes on each side of the edging upright at least one double cylinder which has two cylinders coupled to one another and is separately controllable and configured for rapid adjustment and for control adjustment of the edging roll.