公开(公告)号：US6382010B2

公开(公告)日：2002-05-07

申请号：US73125300

申请日：2000-12-06

Applicant: SMS EUMUCO GMBH

Inventor： STAMM DETLEF

IPC: B21K27/00 ,  B21J5/00 ,  B21J5/02 ,  B21J9/02 ,  B21J13/08 ,  B21K1/76 ,  B21K27/04 ,  B21D22/00 ,  B21D3/00 ,  B21D43/20

CPC classification number: B21K27/04 ,  B21J9/022 ,  B21J13/08 ,  B21K1/766

Abstract: A method of operating a forging press having a plurality of tool stages between which workpieces are advanced in succession. Each tool has two identical dies with a center-to-center spacing of half the stroke of a transporter for advancing the workpieces from stage to stage so that in each stage during each forging stroke of the press only one die is in contact with the workpiece while the other die is unused and in the next working stroke, the unused die engages the workpiece and the previously used die is unused. The result is a minimization of the contact time of workpieces with any given die and hence an increase in the life of the dies for a given press output or enhanced output of the press with equal or reduced die wear.

Abstract translation: 一种操作锻造压力机的方法，所述锻压机具有多个工具台，工件在其间连续前进。 每个工具具有两个相同的模具，其中心到中心间隔是运输工具的行程的一半，用于将工件从一个台阶移动到另一个阶段，使得在每个锻压冲程期间的每个阶段中，只有一个模具与工件接触 而另一个模具未使用，并且在下一个工作冲程中，未使用的模具接合工件，并且未使用先前使用的模具。 结果是使得具有任何给定模具的工件的接触时间最小化，并且因此对于给定的压力机输出，模具的寿命增加或具有相同或减小的模具磨损的压力机的增加的输出。

公开(公告)号：US20020000113A1

公开(公告)日：2002-01-03

申请号：US09839688

申请日：2001-04-20

Applicant: SMS DEMAG AKTIENGESELLSCHAFT

Inventor： Walter Hoffgen ,  Paul Koenen

IPC: B21B019/00

CPC classification number: B21B35/14 ,  B21B13/008 ,  B21B19/02 ,  B21B31/02 ,  B21B31/04 ,  B21B2203/06

Abstract: A rolling mill, especially an inclined roll or Diescher roll mill 3 its stand formed by a pair of portal frames on a foundation spaced apart by cassettes holding the upper and lower roll units and tie rods securing the portal frames against one another and the cassettes. The tie rods are spaced apart vertically or horizontally on the portal frames.

Abstract translation: 一种轧机，特别是倾斜辊或Diescher辊磨机3，其支架由一对入口框架形成，该基座通过保持上下辊单元的盒子和用于将门架相互固定并固定在盒体上的系杆间隔开。 拉杆在门架上垂直或水平间隔开。

公开(公告)号：US20010054665A1

公开(公告)日：2001-12-27

申请号：US09873136

申请日：2001-06-01

Applicant: SMS DEMAG AKTIENGESELLSCHAFT

Inventor： Bernhard Heimann

IPC: B65H020/26

CPC classification number: B21B41/00 ,  B21C49/00

Abstract: A looper for thick metal strip has a large-diameter outer basket centered on an upright axis and a small-diameter inner basket axially above the outer basket and centered on an upright axis. The strip is fed on edge and generally tangentially into the outer basket to form therein a large-diameter spiral having an inner end. Then the strip is fed upward from the spiral inner end around the inner basket and is finally pulled tangentially from the inner basket. The strip is straightened generally as it leaves the inner basket.

Abstract translation: 用于厚金属条的弯针具有以垂直轴线为中心的大直径外篮和轴向上在外篮上方的小直径内篮，并以直立轴为中心。 带材沿边缘进给，并且大致切向地进入外部篮子中以在其中形成具有内端的大直径螺旋。 然后将带从螺旋内端向内馈入内篮，最终从内篮切向地拉动。 一般当条带离开内部篮子时将其拉直。

公开(公告)号：US20010042394A1

公开(公告)日：2001-11-22

申请号：US09855792

申请日：2001-05-15

Applicant: SMS Demag AG

Inventor： Karl Heinz Hausler

IPC: B21D022/00

CPC classification number: B21D41/02 ,  B21C1/24 ,  B21C1/32 ,  B21C5/00 ,  B21C5/003

Abstract: A process for preparing the end of a pipe for drawing over a drawing mandrel, including the following steps: (a) inserting a preforming mandrel into an end of the pipe, the preforming mandrel having a first section having a diameter which is substantially smaller than the inside diameter of the pipe to be drawn, a third section having a diameter which is substantially the same as the inside diameter of the pipe to be drawn, and a second section between the first section and the third section, the second section tapering from the diameter of the third section to the diameter of the first section; (b) rolling the pipe with a set of non-driven rolls while the rolls revolve around the pipe and move axially from the first section of the mandrel to the second section or the mandrel and radially inward to form a constriction in the pipe; (c) rolling the pipe with the rolls while the rolls revolve around the pipe and move axially over the second section of the mandrel toward third section of the preforming mandrel and radially outward so that the pipe has a wall thickness which is continuously reduced as the diameter of the mandrel increases toward the third section; and (d) rolling the pipe with the rolls while the rolls revolve around the pipe and move axially over the third section of the preforming mandrel so that the pipe has a wall thickness which remains constant over the third section to the end of the pipe. The preforming mandrel is than removed so that a drawing mandrel can be inserted and the pipe can be drawn through a drawing mill. Apparatus for practicing the invention is also disclosed.

Abstract translation: 一种用于制备用于拉伸拉丝心轴的管道的端部的方法，包括以下步骤：（a）将预成型的心轴插入管的端部，预成型心轴具有第一部分，该第一部分的直径基本上小于 待拉制的管的内径，具有与被拉制管的内径基本相同的直径的第三部分和在第一部分和第三部分之间的第二部分，第二部分从 第三部分的直径相对于第一部分的直径; （b）用一组非从动辊滚动管，同时辊围绕管旋转并且从心轴的第一部分轴向移动到第二部分或心轴并径向向内以在管中形成收缩; （c）当轧辊围绕管旋转时，滚筒滚动，同时沿心轴的第二部分轴向移动到预成形芯棒的第三部分并且径向向外，使得管道的壁厚随着其长度而不断地减小 心轴的直径朝向第三部分增加; 并且（d）在轧辊围绕管旋转并且在预成型心轴的第三部分上轴向移动，使得管具有在管的端部上的第三部分上保持恒定的壁厚。 预先形成的心轴不是被去除，从而可以插入拉伸心轴，并且管可以通过拉丝机拉伸。 还公开了用于实施本发明的装置。

公开(公告)号：US20250164188A1

公开(公告)日：2025-05-22

申请号：US19027177

申请日：2025-01-17

Applicant: SMS group GmbH

Inventor： Klaus FUSSBROICH

IPC: F27B9/26 ,  B21C23/08 ,  B21C29/00 ,  C21D1/42 ,  C21D9/00 ,  F27D3/00 ,  F27D3/06

Abstract: A shell (10) acts as a transporting shoe for steel ingots, which are pushed through a preferably tubular induction furnace for inductive heating for the purpose of producing seamless tubes by the extrusion process. The shell (10) is formed in such a way that it partially reaches around the contour of the steel ingot to be heated. The shell is provided at one end leading in the pushing-through direction or transporting direction, with a shoulder (12), which extends at an angle to the transporting direction, against which the steel ingot rests in such a way that the pushed-through steel ingot takes the shell (10) along with it. A method for inductively heating steel ingots uses a shell (10) as described.

公开(公告)号：US20250155070A1

公开(公告)日：2025-05-15

申请号：US18837332

申请日：2023-02-09

Applicant: SMS GROUP GMBH

Inventor： Jorg Doege ,  Frank Lichtenthaler ,  Lars Moller ,  Ulli Oberste- Lehn ,  Michael STARK ,  Jochen VOCHSEN

IPC: F16L58/08 ,  B23K26/342 ,  B32B1/08 ,  B32B15/01 ,  C23C4/06 ,  C23C4/131

Abstract: A pipe section includes a support layer consisting of a metal base material. The support layer has an inner surface, at least two pipe section ends each having an end region and an intermediate region. In each end region of the inner surface of the support layer, a first coating consists of a first metal coating material. The first coating is welded to the support layer. In the intermediate region of the inner surface of the support layer, a second coating consists of a second metal coating material. The second coating is sprayed onto the support layer using a thermal spraying process and having a second thickness. The support layer, on the inner surface, has a roughness Ra of more than or equal to 0.2 μm.

公开(公告)号：US20250146753A1

公开(公告)日：2025-05-08

申请号：US18684231

申请日：2022-08-17

Applicant: SMS group GmbH

Inventor： Hans Ferkel ,  Markus Reifferscheid ,  Thomas Henkel ,  Ingo Schuster

IPC: F27B3/28 ,  F27D19/00 ,  F27D21/00

Abstract: The invention relates to an electric arc furnace having a furnace vessel with at least one electrode and a voltage supply connected to the at least one electrode, wherein: the furnace vessel has a lower vessel for receiving a melt and a cover for placing onto the lower vessel; the lower vessel has a tapping channel; and the cover has a retaining means for fastening the at least one electrode; the electric arc furnace is designed to determine a nitrogen content in the melt; and/or the electric arc furnace is designed to reduce the nitrogen content in the melt to less than or equal to 55 ppm, preferably to less than or equal to 45 ppm and particularly preferably to less than or equal to 35 ppm. The invention further relates to an operating method and to a use of an electric arc furnace.

公开(公告)号：US12246370B2

公开(公告)日：2025-03-11

申请号：US17641609

申请日：2020-09-10

Applicant: SMS GROUP GMBH

Inventor： Markus Schaprian

IPC: B21D5/08 ,  B21H1/20 ,  B21H1/22 ,  B21K27/04

Abstract: A stretch-rolling device and a stretch-rolling method for pressure-forming workpieces by rolls. The stretch-rolling device includes a pair of work-rolls with two rolls, which can each be rotated about their roll axes and form a roll gap between them. The rolls implement a plurality of stages in an axial direction, which are set up for stepwise deformation of the workpieces as the workpieces pass through the stages successively. A manipulator with a plurality of gripping devices, which are arranged on a working side of the pair of work-rolls, are set up to grip the workpieces at an assigned stage to guide the workpieces through the roll gap in a feed/retraction direction. A support is arranged to temporarily support the workpieces in cooperation with the manipulator to transfer the workpieces to another gripping device, which is preferably an adjacent gripping device of the next higher stage.

公开(公告)号：US12208442B2

公开(公告)日：2025-01-28

申请号：US18025308

申请日：2021-08-31

Applicant: SMS group GmbH

Inventor： Dirk Letzel ,  Uwe Plociennik ,  Volker Mers ,  Axel Stavenow ,  Ina Hüllen ,  Harminder Singh ,  Ingo OlgeMöller

IPC: B22D11/124 ,  B22D11/22

Abstract: The invention relates to a method and to a spraying apparatus (10) for the thermal surface treatment of a metal product (1). The metal product (1) is conveyed in a transport direction (T) through a treatment section (12) of a spraying apparatus (10) equipped with cooling nozzles (16) while cooling fluid is discharged through the cooling nozzles (16) of the spraying apparatus (10) onto the surfaces of the metal product (1), wherein the metal product (1) has—viewed in the transport direction (T) of the metal product (1)—a front section (4) and a trailing rear section (5). The cooling of the surfaces of the metal product (1) within the spraying apparatus (10) occurs in such a manner that the rear section (5) of the metal product (1) is cooled more significantly than its front section (4). It is thereby achieved that an essentially uniform ferrite content forms in the material of the metal product (1) at a predetermined depth of the same over a longitudinal area extending between the front section (4) and the rear section (5).

公开(公告)号：US12196418B2

公开(公告)日：2025-01-14

申请号：US17779868

申请日：2020-11-23

Applicant: SMS group GmbH

Inventor： Volker Wiegmann ,  Frank Dorstewitz ,  Andreas Kemminger ,  Helmut Biehl

IPC: F23G7/08

Abstract: A method for the post-combustion of exhaust gases comprising carbon monoxide from metallurgical processes includes conditioning the exhaust gas prior to post-combustion by metering a combustion gas and/or one additional gas in feedback-controlled fashion. The feedback control depends on the composition of the exhaust gas dependent on the exhaust gas volume flow. A device for post-combustion of exhaust gas during vacuum treatment of liquid steel comprises a flare stack at an exhaust outlet, means for feeding combustion gas to the flare stack, means for feeding an inert gas into the exhaust gas channel of the vacuum pump, means for ascertaining the exhaust gas volume flow and/or for measuring the exhaust gas velocity within the exhaust gas channel, means for analyzing the exhaust gas composition, means for metering the combustion gas and the inert gas, and means for feedback control of the metering of the combustion gas and/or the inert gas dependent on the exhaust gas composition.