Patents by Inventor Ralf Seidel
Ralf Seidel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11938528Abstract: 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 . . . <k< . . . I and for the target center flatness after the subsequent passes, pass-specific interval ranges are also specified in each case, and in that the successive calculation of the control variables and profile values is then carried out taking into account such additional specifications as well.Type: GrantFiled: July 18, 2019Date of Patent: March 26, 2024Assignee: SMS group GmbHInventors: Jürgen Seidel, Uwe Baumgärtel, Ralf Wachsmann, Peter Bonekemper
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Patent number: 11717869Abstract: A seal (100) for sealing a lubricant space prevents lubricant (320) escaping. A rolling stand has a seal of this kind. The seal (100) is made at least partially from elastic material. To enable a pressing force FR, with which the bottom face (112) of the seal is pressed against an opposite contact surface (218), for example of a roll journal (212), to be variably set, the seal (100) has at least two cavities, which are separated from each other in the circumferential direction and which are open towards the lubricant space of the bearing.Type: GrantFiled: November 2, 2018Date of Patent: August 8, 2023Assignee: SMS group GmbHInventors: Johannes Alken, Daniel Knie, Andrej Tucak, Ralf Seidel, Matthias Kipping
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Publication number: 20210170461Abstract: A seal (100) for sealing a lubricant space prevents lubricant (320) escaping. A rolling stand has a seal of this kind. The seal (100) is made at least partially from elastic material. To enable a pressing force FR, with which the bottom face (112) of the seal is pressed against an opposite contact surface (218), for example of a roll journal (212), to be variably set, the seal (100) has at least two cavities, which are separated from each other in the circumferential direction and which are open towards the lubricant space of the bearing.Type: ApplicationFiled: November 2, 2018Publication date: June 10, 2021Applicant: SMS group GmbHInventors: Johannes ALKEN, Daniel KNIE, Andrej TUCAK, Ralf SEIDEL, Matthias KIPPING
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Patent number: 10967409Abstract: The invention relates to a device and a method for cooling a roll. The roll concerned can be a roller in a roll stand or a measuring roll. The device comprises a cooling shell having a cross section in the shape of a section of a circular arc, for covering a surface region of the roll (200), wherein, in the region of an edge of the cooling shell, a bearing is formed with a pivot joint (120) with an axis of rotation running perpendicular to the circular arc-shaped cross-section, for pivoting the cooling shell about the axis of rotation. According to the invention, in order to ensure that the size of the cooling gap during the rolling operation or during the operation of a measuring roll is always autonomously optimally set, the bearing has a degree of freedom in radial direction r with respect to the circular arc-shaped cross-section of the cooling shell, such that the cooling shell is mounted in the bearing in such a way as to be freely movable in the radial direction.Type: GrantFiled: November 26, 2015Date of Patent: April 6, 2021Assignee: SMS GROUP GMBHInventors: Matthias Kipping, Johannes Alken, Ralf Seidel, Torsten Mueller, Magnus Treude
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Patent number: 10807134Abstract: A method and a device for controlling a parameter, for example the profile or the flatness, of a rolled stock in strip form. A cooling jacket that can be brought up to the roll and is designed to be variable in its effective length b in the circumferential direction of the roll is used as a final controlling element.Type: GrantFiled: June 8, 2016Date of Patent: October 20, 2020Assignee: SMS group GmbHInventors: Matthias Kipping, Ralf Seidel, Johannes Alken, Torsten Müller, Magnus Treude
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Patent number: 10710131Abstract: A roll arrangement for rolling rolling material in a rolling system. The roll arrangement includes a roll that is rotatably mounted by its roll journal in a bearing bush of a chock. A ring gap for receiving a lubricant is formed between the bearing bush and the roll journal. The ring gap is sealed both on the ball side of the chock and on the side of the chock away from the balls, using sealing rings. In order to increase the load capacity or the rolling force of a roll arrangement while maintaining or reducing the construction size thereof and without the roll arrangement overheating, discharge channels are provided in a through-flow angular range of the bearing bush for discharging the lubricant out of the ring gap into an oil-receiving chamber.Type: GrantFiled: April 21, 2016Date of Patent: July 14, 2020Assignee: SMS GROUP GMBHInventors: Johannes Alken, Ralf Seidel
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Patent number: 10449582Abstract: To increase the load-carrying capacity or rolling capacity of a roll assembly in a rolling mill, throttle elements are used, which shut off the lateral flow of the lubricating film in a partial region between the roll neck and the bearing surface of the roll neck bearing assembly, thereby bringing about an increase in pressure in the lubricating film. At least one throttle element is embodied as an annular segment, forming an angular shut-off region for the lubricant in the annular gap. The invention makes it possible for existing installations to be easily retrofitted, without the need for structural modifications. In the case of new installations, the same load-carrying capacity as before can be provided while the dimensions of the installation space are reduced. The load-carrying capacity of the bearing assembly can be flexibly adjusted based on the dimensions of the shut-off region for the flow of lubricant.Type: GrantFiled: November 11, 2014Date of Patent: October 22, 2019Assignee: SMS GROUP GMBHInventors: Johannes Alken, Ralf Seidel
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Publication number: 20180297093Abstract: A roll arrangement for rolling rolling material in a rolling system. The roll arrangement includes a roll that is rotatably mounted by its roll journal in a bearing bush of a chock. A ring gap for receiving a lubricant is formed between the bearing bush and the roll journal. The ring gap is sealed both on the ball side of the chock and on the side of the chock away from the balls, using sealing rings. In order to increase the load capacity or the rolling force of a roll arrangement while maintaining or reducing the construction size thereof and without the roll arrangement overheating, discharge channels are provided in a through-flow angular range of the bearing bush for discharging the lubricant out of the ring gap into an oil-receiving chamber.Type: ApplicationFiled: April 21, 2016Publication date: October 18, 2018Inventors: Johannes ALKEN, Ralf SEIDEL
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Publication number: 20180169724Abstract: A method and a device for controlling a parameter, for example the profile or the flatness, of a rolled stock in strip form. A cooling jacket that can be brought up to the roll and is designed to be variable in its effective length b in the circumferential direction of the roll is used as a final controlling element.Type: ApplicationFiled: June 8, 2016Publication date: June 21, 2018Applicant: SMS group GmbHInventors: Matthias KIPPING, Ralf SEIDEL, Johannes ALKEN, Torsten MÜLLER, Magnus TREUDE
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Patent number: 9901964Abstract: A device for cooling a roll for rolling materials, including a cooling shell opposite a sub-region of the roll surface circumference, for forming a cooling gap, through which a cooling fluid can flow, between the sub-region and the cooling shell. The device further includes a first lever which can be pivoted about a suspension point, which can be pivoted toward the roll surface, and which is rotatably connected to a first end region of the cooling shell, when viewed in the circumferential direction of the roll, and a second lever which can be pivoted about another suspension point, which can be pivoted toward the roll surface, and which is rotatably connected to the second end region of the cooling shell, when viewed in the circumferential direction of the roll, such that the cooling gap can be selectively reduced or increased by pivoting the levers.Type: GrantFiled: May 8, 2013Date of Patent: February 27, 2018Assignee: SMS GROUP GMBHInventors: Matthias Kipping, Johannes Alken, Ralf Seidel, Torsten Müller
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Publication number: 20180009016Abstract: The invention relates to a device and a method for cooling a roll. The roll concerned can be a roller in a roll stand or a measuring roll. The device comprises a cooling shell having a cross section in the shape of a section of a circular arc, for covering a surface region of the roll (200), wherein, in the region of an edge of the cooling shell, a bearing is formed with a pivot joint (120) with an axis of rotation running perpendicular to the circular arc-shaped cross-section, for pivoting the cooling shell about the axis of rotation. According to the invention, in order to ensure that the size of the cooling gap during the rolling operation or during the operation of a measuring roll is always autonomously optimally set, the bearing has a degree of freedom in radial direction r with respect to the circular arc-shaped cross-section of the cooling shell, such that the cooling shell is mounted in the bearing in such a way as to be freely movable in the radial direction.Type: ApplicationFiled: November 26, 2015Publication date: January 11, 2018Inventors: Matthias Kipping, Johannes Alken, Ralf Seidel, Torsten Mueller, Magnus Treude
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Publication number: 20170157656Abstract: To increase the load-carrying capacity or rolling capacity of a roll assembly in a rolling mill, throttle elements are used, which shut off the lateral flow of the lubricating film in a partial region between the roll neck and the bearing surface of the roll neck bearing assembly, thereby bringing about an increase in pressure in the lubricating film. At least one throttle element is embodied as an annular segment, forming an angular shut-off region for the lubricant in the annular gap. The invention makes it possible for existing installations to be easily retrofitted, without the need for structural modifications. In the case of new installations, the same load-carrying capacity as before can be provided while the dimensions of the installation space are reduced. The load-carrying capacity of the bearing assembly can be flexibly adjusted based on the dimensions of the shut-off region for the flow of lubricant.Type: ApplicationFiled: November 11, 2014Publication date: June 8, 2017Inventors: Johannes Alken, Ralf Seidel
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Patent number: 9610622Abstract: The application is directed to a device (1, 1?) for cooling a roll (2), in particular a working roll (2) for rolling rolling stock (3), wherein the device comprises a cooling shell (50, 60) which lies opposite at least one part region of the circumference of the roll surface for forming a cooling gap (5) between the part region of the roll surface and the cooling shell (50, 60), through which cooling gap (5) cooling fluid can flow, and a lever (40, 44) which can be pivoted about a suspension point (8, 48), can be pivoted in the direction of the roll surface and is connected rotatably to a first half (51, 61) of the cooling shell (50, 60) as viewed in the circumferential direction (U) of the roll (2), wherein the cooling gap (5) can optionally be reduced in size or enlarged by pivoting of the lever (40, 44).Type: GrantFiled: May 8, 2013Date of Patent: April 4, 2017Assignee: SMS GROUP GMBHInventors: Johannes Alken, Matthias Kipping, Ralf Seidel, Torsten Mueller
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Patent number: 9440271Abstract: The invention is directed to a device for straightening a stream of a cooling medium for cooling a roll or a metal strip. This device comprise a hollow body, extending over at least part of the width of the roll or the metal strip, and a tube, arranged in the hollow body and extending in the direction of the width of the roll or the metal strip, wherein the hollow body is divided in the direction of the width of the roll or the metal strip into a number of chambers, and the tube comprises openings for introducing cooling medium into the chambers of the hollow body, and the chambers respectively comprise an opening for the flowing out of cooling medium from the hollow body.Type: GrantFiled: January 31, 2013Date of Patent: September 13, 2016Assignee: SMS GROUP GMBHInventors: Matthias Kipping, Johannes Alken, Ralf Seidel
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Patent number: 9415430Abstract: A roll stand for rolling metallic strips includes at least one roll or cylinder which is respectively mounted in a mounting on rolling bearings in the region of its end journals, and at least one distributing device for distributing a lubricant-gas flow. The roll stand according to the invention makes it easily possible in an operationally reliable manner to supply a rolling bearing, provided for mounting a roll or cylinder, with a precisely determined amount of lubricant. This is achieved according to the invention in that a connecting channel for the transport of a lubricant-gas flow to or from the distributing device is molded into the roll or cylinder.Type: GrantFiled: September 12, 2008Date of Patent: August 16, 2016Assignees: SMS Siemag AG, REBS Zentralschmiertechnik GmbHInventors: Alexander A. Rebs, Udo Davids, Ralf Seidel
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Patent number: 9162266Abstract: The invention relates to an installation part for mounting an upper support roll in a roll stand. The installation part has, on its cambered side, a lubricant receiving space, from which at least one lubricant drain hole (130) extends, in the lower region of the installation part, in the direction of the drain side of the installation part.Type: GrantFiled: November 28, 2012Date of Patent: October 20, 2015Assignee: SMS GROUP GMBHInventors: Karl Keller, Daniel Knie, Konrad Roeingh, Ralf Seidel
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Publication number: 20150231676Abstract: The application is directed to a device (1, 1?) for cooling a roll (2), in particular a working roll (2) for rolling rolling stock (3), wherein the device comprises a cooling shell (50, 60) which lies opposite at least one part region of the circumference of the roll surface for forming a cooling gap (5) between the part region of the roll surface and the cooling shell (50, 60), through which cooling gap (5) cooling fluid can flow, and a lever (40, 44) which can be pivoted about a suspension point (8, 48), can be pivoted in the direction of the roll surface and is connected rotatably to a first half (51, 61) of the cooling shell (50, 60) as viewed in the circumferential direction (U) of the roll (2), wherein the cooling gap (5) can optionally be reduced in size or enlarged by pivoting of the lever (40, 44).Type: ApplicationFiled: May 8, 2013Publication date: August 20, 2015Inventors: Johannes Alken, Matthias Kipping, Ralf Seidel, Torsten Mueller
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Patent number: 9108235Abstract: The invention relates to a method for cooling a roll (1), in particular a working roll (1) of a hot-rolling system, comprising the steps of feeding coolant (3) by means of a nozzle (5) into a gap (7) between at least a portion of the roll surface and a cooling shell (9, 11) that can be placed against the portion of the roll surface, and adjusting the gap height (h) between the cooling shell (9, 11) and the roll surface. According to the invention, the adjustment of the gap height (h) comprises either measuring the pressure (pact) of the fed coolant (3) or measuring the volumetric flow rate (Vact) of the fed coolant (3). The invention further relates to a corresponding device (10) for cooling a roll (1).Type: GrantFiled: November 29, 2012Date of Patent: August 18, 2015Assignee: SMS Siemag AGInventors: Matthias Kipping, Ralf Seidel, Johannes Alken
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Publication number: 20150135792Abstract: A device for cooling a roll for rolling materials, including a cooling shell opposite a sub-region of the roll surface circumference, for forming a cooling gap, through which a cooling fluid can flow, between the sub-region and the cooling shell. The device further includes a first lever which can be pivoted about a suspension point, which can be pivoted toward the roll surface, and which is rotatably connected to a first end region of the cooling shell, when viewed in the circumferential direction of the roll, and a second lever which can be pivoted about another suspension point, which can be pivoted toward the roll surface, and which is rotatably connected to the second end region of the cooling shell, when viewed in the circumferential direction of the roll, such that the cooling gap can be selectively reduced or increased by pivoting the levers.Type: ApplicationFiled: May 8, 2013Publication date: May 21, 2015Inventors: Matthias Kipping, Johannes Alken, Ralf Seidel, Torsten Müller
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Publication number: 20150114066Abstract: The invention relates to an installation part for mounting an upper support roll in a roll stand. The installation part has, on its cambered side, a lubricant receiving space, from which at least one lubricant drain hole (130) extends, in the lower region of the installation part, in the direction of the drain side of the installation part.Type: ApplicationFiled: November 28, 2012Publication date: April 30, 2015Inventors: Karl Keller, Daniel Knie, Konrad Roeingh, Ralf Seidel