Patents by Inventor Konrad KRIMPELSTAETTER
Konrad KRIMPELSTAETTER 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: 11565293Abstract: A method and a regulating device for regulating a rolling process, wherein a rolling material is rolled in a rolling gap between two working rollers of a rolling stand. A target forward slip value (fs) for a forward slip (f) of the rolling material is specified, and an actual forward slip value (fM) of the forward slip (f) of the rolling material is ascertained. The forward slip (f) of the rolling material is regulated to the target forward slip value (fs) in that a lubricant rate (uR) of a lubricant is applied to the rolling material and/or at least one working roller depending on the actual forward slip value (fM) and the target forward slip value (fs).Type: GrantFiled: December 6, 2018Date of Patent: January 31, 2023Assignee: Primetals Technologies Austria GmbHInventors: Martin Bergmann, Konrad Krimpelstaetter
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Patent number: 11554396Abstract: A method for cleaning rolling stock (5) during cold rolling of the rolling stock (5) in a tandem mill (1) which includes a plurality of mill stands (7, 9). The rolling stock (5) is moved through the tandem mill (1) in a direction of movement (3) and a cleaning liquid (26) is sprayed onto the rolling stock (5) between two roll stands (7, 9) in a spraying direction having a component opposite to that of the direction of movement (3).Type: GrantFiled: June 12, 2018Date of Patent: January 17, 2023Inventors: Martin Bergmann, Konrad Krimpelstaetter
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Patent number: 11529660Abstract: The invention relates to a method and a rolling device for rolling a rolled material. The rolled material is guided through a roll gap between two working rollers of a reversing roll stand, alternatingly in two opposing rolling directions. A lubricant for lubricating a contact zone is introduced into the contact zone in which the rolled material is in contact with the working rollers, and a coolant is applied to the rolled material and/or the working rollers. In a mixture with a carrier gas, the lubricant is sprayed onto the working rollers and/or onto the rolled material exclusively on an outlet side of a pass. The coolant is applied to the working rollers and/or to the rolled material exclusively on an inlet side of a pass.Type: GrantFiled: April 23, 2020Date of Patent: December 20, 2022Assignee: Primetals Technologies Austria GmbHInventors: Martin Bergmann, Konrad Krimpelstaetter
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Publication number: 20220355356Abstract: A method for cold rolling rolled stock (2) in a mill train (1) with multiple roll stands (3 to 7). An upper limit temperature and/or a lower limit temperature is provided for a rolled stock temperature of the rolled stock (2) for at least one rolling pass, and the rolled stock temperature is controlled and/or regulated by at least one control or regulating measure such that during the at least one rolling pass, the rolled stock temperature does not exceed the upper limit temperature specified for the rolling pass and/or the rolled stock temperature does not fall below the lower limit temperature specified for the rolling pass.Type: ApplicationFiled: September 7, 2020Publication date: November 10, 2022Inventors: Martin Bergmann, Konrad Krimpelstaetter
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Patent number: 11440066Abstract: A first steel strip and a second steel strip (7) are rolled in succession in at least one roll stand (1) of a cold rolling mill. A rolling pause, in which no steel strip is rolled, is provided between the rolling of the first and the second steel strip (7). The first steel strip is fed over a first path starting from a first pay-off reel (2), and the second steel strip (7) is fed over a second path starting from the first pay-off reel (2), or from a second pay-off reel different from the first pay-off reel (2). The first steel strip is not heated as it is fed to the rolling mill (1), whereas, by contrast, the second steel strip (7) is heated. The second path is longer than the first path.Type: GrantFiled: April 15, 2020Date of Patent: September 13, 2022Inventors: Roland Kellermayr, Konrad Krimpelstaetter, Alois Stadlbauer
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Publication number: 20220184676Abstract: A first steel strip and a second steel strip (7) are rolled in succession in at least one roll stand (1) of a cold rolling mill. A rolling pause, in which no steel strip is rolled, is provided between the rolling of the first and the second steel strip (7). The first steel strip s fed over a first path starting from a first pay-off reel (2), and the second steel strip (7) is fed over a second path starting from the first pay-off reel (2), or from a second pay-off reel different from the first pay-off reel (2). The first steel strip is not heated as it is fed to the rolling mill (1), whereas, by contrast, the second steel strip (7) is heated. The second path is longer than the first path.Type: ApplicationFiled: April 15, 2020Publication date: June 16, 2022Inventors: Roland KELLERMAYR, Konrad KRIMPELSTAETTER, Alois STADLBAUER
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Publication number: 20220143662Abstract: The invention relates to a method and a rolling device for rolling a rolled material. The rolled material is guided through a roll gap between two working rollers of a reversing roll stand, alternatingly in two opposing rolling directions. A lubricant for lubricating a contact zone is introduced into the contact zone in which the rolled material is in contact with the working rollers, and a coolant is applied to the rolled material and/or the working rollers. In a mixture with a carrier gas, the lubricant is sprayed onto the working rollers and/or onto the rolled material exclusively on an outlet side of a pass. The coolant is applied to the working rollers and/or to the rolled material exclusively on an inlet side of a pass.Type: ApplicationFiled: April 23, 2020Publication date: May 12, 2022Applicant: Primetals Technologies Austria GmbHInventors: Martin BERGMANN, Konrad KRIMPELSTAETTER
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Patent number: 11161161Abstract: A method for rolling a product to be rolled (3), wherein the product (3) is fed through a rolling gap (11) between two working rollers (9, 10) of a roll stand (1) and a cooling lubricant is introduced into a contact zone (15, 16), in which a contact surface (17, 18) of the product to be rolled (3) lies against a working roller (9, 10), in order to lubricate the contact zone (15, 16). Furthermore, a lubrication demand of the contact zone (15, 16) is determined in accordance with at least one process parameter of the rolling process and an additional lubricant is applied to the contact surface (17, 18) of the product to be rolled (3) before the rolling gap (11) at a specified application distance (D) if a cooling lubricant amount (C) presently introduced into the contact zone (15, 16) does not cover the lubrication demand.Type: GrantFiled: April 28, 2017Date of Patent: November 2, 2021Inventors: Matthias Holzweber, Konrad Krimpelstaetter
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Publication number: 20210129199Abstract: The invention relates to a method and a regulating device for regulating a rolling process, wherein a rolling material is rolled in a rolling gap between two working rollers of a rolling stand. According to the invention, a desired forward slip value (fs) for a forward slip (f) of the rolling material is specified, and an actual forward slip value (fM) of the forward slip (f) of the rolling material is ascertained. The forward slip (f) of the rolling material is regulated to the desired forward slip value (fs) in that a lubricant rate (uR) of a lubricant is applied to the rolling material and/or at least one working roller depending on the actual forward slip value (fM) and the desired forward slip value (fs).Type: ApplicationFiled: December 6, 2018Publication date: May 6, 2021Applicant: Primetals Technologies Austria GmbHInventors: Martin BERGMANN, Konrad KRIMPELSTAETTER
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Patent number: 10780475Abstract: During the rolling of a metallic flat rolling stock (1) in a roll stand (2), lubricating oil (5) is sprayed onto the rolling stock (1) and/or at least one roll (3,4) of the roll stand (2) by multiple spray nozzles (7) arranged beside one another. In each case, a mixing chamber (8) of a spray nozzle (7) is fed with a respective quantity of lubricating oil (5) via respective multiple oil inlet openings (9). The respective mixing chamber (8) is fed with compressed air (11) via respectively one air inlet opening (10). Compressed air (11) atomizes the lubricating oil (5) in the respective mixing chamber (8) to form an aerosol and, via respectively at least one nozzle outlet (12), is sprayed onto the rolling stock (1) and/or the at least one roll (3,4) of the roll stand (2).Type: GrantFiled: November 18, 2014Date of Patent: September 22, 2020Assignee: PRIMETALS TECHNOLOGIES AUSTRIA GMBHInventors: Martin Boehm, Thomas Braidt, Gernot Dirisamer, Konrad Krimpelstaetter, Daniel Vipavc
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Publication number: 20200269296Abstract: The invention relates to a rolling apparatus for rolling a rolled material, and to a method for operating the rolling apparatus. The rolling apparatus has two rolling stands, which each have two working rolls distanced from one another by a nip, through which the rolled material can be guided. In a first operating mode, a lubricant mixture, formed of a carrier gas and a lubricant, and coolant are applied to at least one working roll of a first rolling stand and/or to at least one rolled material surface of the rolled material. In a second operating mode, a skin pass agent is applied to at least one working roll of the first rolling stand, at least one working roll of the second rolling stand and/or at least one rolled material surface of the rolled material.Type: ApplicationFiled: July 19, 2018Publication date: August 27, 2020Applicant: Primetals Technologies Austria GmbHInventors: Martin BERGMANN, Gernot DIRISAMER, Gregor GERSTORFER, Roland KELLERMAYR, Konrad KRIMPELSTAETTER, Christoph PROELL
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Publication number: 20200139416Abstract: A method for cleaning rolling stock (5) during cold rolling of the rolling stock (5) in a tandem mill (1) which includes a plurality of mill stands (7, 9). The rolling stock (5) is moved through the tandem mill (1) in a direction of movement (3) and a cleaning liquid (26) is sprayed onto the rolling stock (5) between two roll stands (7, 9) in a spraying direction having a component opposite to that of the direction of movement (3).Type: ApplicationFiled: June 12, 2018Publication date: May 7, 2020Inventors: Martin BERGMANN, Konrad KRIMPELSTAETTER
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Publication number: 20190151919Abstract: A method for rolling a product to be rolled (3), wherein the product (3) is fed through a rolling gap (11) between two working rollers (9, 10) of a roll stand (1) and a cooling lubricant is introduced into a contact zone (15, 16), in which a contact surface (17, 18) of the product to be rolled (3) lies against a working roller (9, 10), in order to lubricate the contact zone (15, 16). Furthermore, a lubrication demand of the contact zone (15, 16) is determined in accordance with at least one process parameter of the rolling process and an additional lubricant is applied to the contact surface (17, 18) of the product to be rolled (3) before the rolling gap (11) at a specified application distance (D) if a cooling lubricant amount (C) presently introduced into the contact zone (15, 16) does not cover the lubrication demand.Type: ApplicationFiled: April 28, 2017Publication date: May 23, 2019Inventors: Matthias HOLZWEBER, Konrad KRIMPELSTAETTER
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Patent number: 9815101Abstract: Operating method for a reversing rolling mill having at least one reversing rolling stand (2) for rolling a rolled metal stock (5), wherein the stock (5) passes the at least one reversing rolling stand (2) in a sequence of alternating direction passes (7) and after each pass, the stock is wound up by a reversing reel (3, 4), wherein only rolling oil, without water as a carrier medium, is applied to the stock (5) by rolling-oil applicator (6), between the at least one reversing rolling stand (2) and the winding-up reel (31, 41).Type: GrantFiled: July 26, 2012Date of Patent: November 14, 2017Assignee: PRIMETALS TECHNOLOGIES AUSTRIA GMBHInventor: Konrad Krimpelstätter
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Patent number: 9776226Abstract: A rolling system, particularly a cold-rolling system for cold-rolling a metal strip (2): having at least one cold-rolling stand (1) an unwinding device (3) upstream of the cold-rolling stand (1), a unit (10) connected between the unwinding device (3) and the cold-rolling stand (1), including at least three rolls (6, 7, 8) each rotationally driven about a rotational axis (6A, 7A, 8A). Each roll (6, 7, 8) can be adjusted individually or together in the direction of the respective rotational axis (6A, 7A, 8A) and in a direction transverse to the rotational axis (6A, 7A, 8A) by a driving and adjusting device (11).Type: GrantFiled: July 26, 2012Date of Patent: October 3, 2017Assignee: PRIMETALS TECHNOLOGIES AUSTRIA GMBHInventors: Günter Karner, Konrad Krimpelstätter
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Publication number: 20170050227Abstract: A device (1) and a method for holding together and transporting a metal band rolled into a coil (3) after the band is rolled in a coiling station (5). The device (1) includes a removal trolley (20) for receiving the coil (3) in the coiling station (5) and for transporting the coil (3) from the coiling station (5). A coil safety device places a securing sling (40) around the coil (3) fixed on at least part of the circumference, such that the coil (3) is held together by the securing sling (40) and is pressed onto the removal trolley (20).Type: ApplicationFiled: April 16, 2015Publication date: February 23, 2017Inventors: Franz BRATERSCHOFSKY, Roland HOFER, Harald KAPL, Reinhard KARL, Konrad KRIMPELSTAETTER, Lukas PICHLER, Jurij RAZINKOV, Christoph SALZMANN, Juergen SCHIEFER, Marco STRAUCH
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Publication number: 20160325327Abstract: During the rolling of a metallic flat rolling stock (1) in a roll stand (2), lubricating oil (5) is sprayed onto the rolling stock (1) and/or at least one roll (3,4) of the roll stand (2) by multiple spray nozzles (7) arranged beside one another. In each case, a mixing chamber (8) of a spray nozzle (7) is fed with a respective quantity of lubricating oil (5) via respective multiple oil inlet openings (9). The respective mixing chamber (8) is fed with compressed air (11) via respectively one air inlet opening (10). Compressed air (11) atomizes the lubricating oil (5) in the respective mixing chamber (8) to form an aerosol and, via respectively at least one nozzle outlet (12), is sprayed onto the rolling stock (1) and/or the at least one roll (3,4) of the roll stand (2).Type: ApplicationFiled: November 18, 2014Publication date: November 10, 2016Inventors: Martin BOEHM, Thomas BRAIDT, Gernot DIRISAMER, Konrad KRIMPELSTAETTER, Daniel VIPAVC
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Patent number: 9314827Abstract: A method for applying a lubricant while rolling metallic rolled stock, e.g., a rolled strip guided through a roll gap between two work rolls, may include the following steps: producing a mixture of lubricant and a carrier gas in an atomization device; supplying the mixture to individual spray nozzles of an arrangement of spray nozzles, in order to produce a continuous overall spray jet in the direction of the width of the rolled strip; and applying the mixture by means of the overall spray jet to the surface of at least one of the work rolls and/or to the surface of the rolled strip.Type: GrantFiled: September 2, 2011Date of Patent: April 19, 2016Assignee: SIEMENS VAI METALS TECHNOLOGIES GMBHInventors: Valentin Atalla, Jian Chen, Gernot Dirisamer, Manfred Eder, Kurt Haller, Konrad Krimpelstätter, Krzysztof Mazurowski
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Publication number: 20140238093Abstract: Operating method for a reversing rolling mill having at least one reversing rolling stand (2) for rolling a rolled metal stock (5), wherein the stock (5) passes the at least one reversing rolling stand (2) in a sequence of alternating direction passes (7) and after each pass, the stock is wound up by a reversing reel (3, 4), wherein only rolling oil, without water as a carrier medium, is applied to the stock (5) by rolling-oil applicator (6), between the at least one reversing rolling stand (2) and the winding-up reel (31, 41).Type: ApplicationFiled: July 26, 2012Publication date: August 28, 2014Applicant: SIEMENS VAI METALS TECHNOLOGIES GMBHInventor: Konrad Krimpelstätter
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Publication number: 20140174141Abstract: A rolling system, particularly a cold-rolling system for cold-rolling a metal strip (2): having at least one cold-rolling stand (1) an unwinding device (3) upstream of the cold-rolling stand (1), a unit (10) connected between the unwinding device (3) and the cold-rolling stand (1), including at least three rolls (6, 7, 8) each rotationally driven about a rotational axis (6A, 7A, 8A). Each roll (6, 7, 8) can be adjusted individually or together in the direction of the respective rotational axis (6A, 7A, 8A) and in a direction transverse to the rotational axis (6A, 7A, 8A) by a driving and adjusting device (11).Type: ApplicationFiled: July 26, 2012Publication date: June 26, 2014Applicant: SIEMENS VAI METALS TECHNOLOGIES GMBHInventors: Günter Karner, Konrad Krimpelstätter