Patents by Inventor Bernhard Kernig
Bernhard Kernig 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: 11326232Abstract: A method for producing aluminum strips for lithographic printing plate supports, wherein the aluminum strip is produced from a rolling ingot, which after optional homogenizing is hot-rolled to a thickness of 2 mm to 7 mm and cold-rolled to a final thickness of 0.15 mm to 0.5 mm provides for an aluminum strip having a thickness of 0.15 mm to 0.5 mm and a printing plate support produced from the aluminum strip.Type: GrantFiled: April 21, 2017Date of Patent: May 10, 2022Assignee: Hydro Aluminium Deutschland GmbHInventors: Bernhard Kernig, Henk-Jan Brinkman, Jochen Hasenclever, Christoph Settele, Gerd Steinhoff
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Patent number: 11260439Abstract: The invention relates to an aluminum alloy strip with improved surface optics, which is fabricated via hot and/or cold rolling, and consists of a type AA 3xxx, AA 5xxx, AA 6xxx or AA 8xxx aluminum alloy. The object of proposing an aluminum alloy strip that is suitable for attractive and precious surface optics despite the elevated percentage of alloy constituents is achieved in that, after degreasing, the finish-rolled aluminum alloy strip exhibits an increase in the luminance value L*(?L) in relation to the rolled-greasy state of more than 5 while measuring the color of the surface in the CIE L*a*b* color space using a standard illuminant D65 and a normal observation angle of 10°, excluding direct reflection in 45°/0° geometry.Type: GrantFiled: July 31, 2014Date of Patent: March 1, 2022Assignee: Hydro Aluminium Rolled Products GmbHInventors: Dieter Bögershausen, Jochen Schwarz, Bernhard Kernig, Kathrin Eckhard, Axel Blecher, Olaf Güßgen
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Patent number: 11131037Abstract: The invention relates to a strip or sheet consisting of an aluminium alloy having a unilateral or bilateral surface structure prepared for a forming process, in particular it relates to a strip or sheet for formed motor vehicle components. The object of providing an aluminium alloy strip or sheet having a surface structure prepared for a forming process, which is easy to produce and has improved tribological characteristics in respect of a subsequent forming process, is achieved for a strip or sheet consisting of an aluminium alloy in that the strip or sheet has on one side or on both sides a surface with depressions as lubricant pockets which are produced using an electrochemical graining process.Type: GrantFiled: July 26, 2018Date of Patent: September 28, 2021Assignee: Hydro Aluminium Rolled Products GmbHInventors: Frank Hirschmann, Kathrin Eckhard, Bernhard Kernig, Gernot Nitzsche, Henk-Jan Brinkman
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Patent number: 10927437Abstract: The invention relates to an aluminium alloy for the production of lithographic printing plate supports and also to an aluminium strip produced from the aluminium alloy, a process for the production of the aluminium strip and also its use for the production of lithographic printing plate supports. The object of providing an aluminium alloy as well as an aluminium strip from an aluminium alloy that permits the production of printing plate supports having improved bending-strength fatigue transverse to the rolling direction without adversely affecting the tensile strength values before and after the annealing process and while preserving the roughening properties, is achieved by the fact that the aluminium alloy contains the following alloy components in weight percent: 0.4%<Fe?1.0%, 0.3%<Mg?1.0%, 0.05%?Si?0.25%, Mn?0.25%, Cu?0.04%, Ti<0.1%, the remainder being Al and unavoidable impurities, individually at most 0.05% and totaling at most 0.05%.Type: GrantFiled: May 20, 2011Date of Patent: February 23, 2021Assignee: Hydro Aluminium Deutschland GmbHInventors: Bernhard Kernig, Jochen Hasenclever, Henk-Jan Brinkman, Gerd Steinhoff, Christoph Settele
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Patent number: 10889912Abstract: The invention relates to a strip consisting of an aluminium alloy for providing adhesive connections. In addition, the invention relates to a method for producing a strip having a one or two-sided surface structure which consists of an aluminium alloy, at least provided in certain areas and prepared for an adhesive connection, and also relates to a corresponding adhesive connection. The object of providing an aluminium alloy strip optimised for adhesive connections, which has optimised surface properties for ageing-resistant adhesive connections, on the one hand, and which can be cost-effectively produced in a way which is reliable in terms of the process, on the other hand, is achieved for a strip consisting of an aluminium alloy for providing adhesive connections by the strip at least in areas having a surface structure prepared for adhesive connections, wherein the surface structure has depressions which were produced using an electrochemical graining process.Type: GrantFiled: July 26, 2018Date of Patent: January 12, 2021Assignee: Hydro Aluminium Rolled Products GmbHInventors: Bernhard Kernig, Henk-Jan Brinkman, Kathrin Eckhard, Gernot Nitzsche, Frank Hirschmann
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Patent number: 10696040Abstract: Provided is a method for production of an aluminium strip for lithographic printing plate supports from an aluminium alloy including (in wt %): 0.05%?Si?0.25%, 0.2%?Fe?1%, Cu max. 400 ppm, Mn?0.30%, 0.10%?Mg?0.50%, Cr?100 ppm, Zn?500 ppm, Ti<0.030%, the remainder aluminium and unavoidable impurities individually at most 0.03%, in total at most 0.15%. In the method, a rolling ingot is cast from an aluminium alloy, and the rolling ingot is homogenised. Further, the rolling ingot is hot rolled to a hot strip final thickness, and the hot strip is cold rolled to final thickness of between 0.1 mm and 0.5 mm. The product of the relative final thicknesses of the aluminium strip after the first and after the second cold rolling pass of the aluminium strip is 15% to 24%.Type: GrantFiled: October 19, 2018Date of Patent: June 30, 2020Assignee: Hydro Aluminium Rolled Products GmbHInventors: Christoph Settele, Bernhard Kernig, Jochen Hasenclever, Gerd Steinhoff
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Publication number: 20190047279Abstract: Provided is a method for production of an aluminium strip for lithographic printing plate supports from an aluminium alloy including (in wt %): 0.05%?Si?0.25%, 0.2%?Fe?1%, Cu max. 400 ppm, Mn?0.30%, 0.10%?Mg?0.50%, Cr?100 ppm, Zn?500 ppm, Ti<0.030%, the remainder aluminium and unavoidable impurities individually at most 0.03%, in total at most 0.15%. In the method, a rolling ingot is cast from an aluminium alloy, and the rolling ingot is homogenised. Further, the rolling ingot is hot rolled to a hot strip final thickness, and the hot strip is cold rolled to final thickness of between 0.1 mm and 0.5 mm. The product of the relative final thicknesses of the aluminium strip after the first and after the second cold rolling pass of the aluminium strip is 15% to 24%.Type: ApplicationFiled: October 19, 2018Publication date: February 14, 2019Applicant: Hydro Aluminium Rolled Products GmbHInventors: Christoph Settele, Bernhard Kernig, Jochen Hasenclever, Gerd Steinhoff
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Publication number: 20180347067Abstract: The invention relates to a strip consisting of an aluminium alloy for providing adhesive connections. In addition, the invention relates to a method for producing a strip having a one or two-sided surface structure which consists of an aluminium alloy, at least provided in certain areas and prepared for an adhesive connection, and also relates to a corresponding adhesive connection. The object of providing an aluminium alloy strip optimised for adhesive connections, which has optimised surface properties for ageing-resistant adhesive connections, on the one hand, and which can be cost-effectively produced in a way which is reliable in terms of the process, on the other hand, is achieved for a strip consisting of an aluminium alloy for providing adhesive connections by the strip at least in areas having a surface structure prepared for adhesive connections, wherein the surface structure has depressions which were produced using an electrochemical graining process.Type: ApplicationFiled: July 26, 2018Publication date: December 6, 2018Applicant: Hydro Aluminium Rolled Products GmbHInventors: Bernhard Kernig, Henk-Jan Brinkman, Kathrin Eckhard, Gernot Nitzsche, Frank Hirschmann
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Publication number: 20180340268Abstract: The invention relates to a strip or sheet consisting of an aluminium alloy having a unilateral or bilateral surface structure prepared for a forming process, in particular it relates to a strip or sheet for formed motor vehicle components. The object of providing an aluminium alloy strip or sheet having a surface structure prepared for a forming process, which is easy to produce and has improved tribological characteristics in respect of a subsequent forming process, is achieved for a strip or sheet consisting of an aluminium alloy in that the strip or sheet has on one side or on both sides a surface with depressions as lubricant pockets which are produced using an electrochemical graining process.Type: ApplicationFiled: July 26, 2018Publication date: November 29, 2018Applicant: Hydro Aluminium Rolled Products GmbHInventors: Frank Hirschmann, Kathrin Eckhard, Bernhard Kernig, Gernot Nitzsche, Henk-Jan Brinkman
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Patent number: 9914318Abstract: An aluminum strip for lithographic printing plate supports, from which printing plate supports can be produced with an improved roughenability and at the same time improved mechanical properties, particularly after a burn-in process, is formed of an aluminum alloy which has the following proportions of alloy constituents in wt. %: 0.05%?Mg?0.3%, 0.008%?Mn?0.3%, 0.4%?Fe?1%, 0.05%?Si?0.5%, Cu?0.04%, Ti?0.04%, inevitable impurities individually max. 0.01%, in total max. 0.05% and remainder Al.Type: GrantFiled: October 19, 2006Date of Patent: March 13, 2018Assignee: Hydro Aluminium Deutschland GmbHInventors: Bernhard Kernig, Henk-Jan Brinkman, Arve Sund, Gerd Steinhoff
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Publication number: 20170253952Abstract: A method for producing aluminum strips for lithographic printing plate supports, wherein the aluminum strip is produced from a rolling ingot, which after optional homogenizing is hot-rolled to a thickness of 2 mm to 7 mm and cold-rolled to a final thickness of 0.15 mm to 0.5 mm provides for an aluminum strip having a thickness of 0.15 mm to 0.5 mm and a printing plate support produced from the aluminum strip.Type: ApplicationFiled: April 21, 2017Publication date: September 7, 2017Applicant: Hydro Aluminium Deutschland GmbHInventors: Bernhard Kernig, Henk-Jan Brinkman, Jochen Hasenclever, Christoph Settele, Gerd Steinhoff
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Publication number: 20170190204Abstract: The invention relates to a litho sheet for electrochemical roughening, consisting of a rolled aluminium alloy, wherein the sheet surface has a topography with a maximum peak height Rp or Sp of not more than 1.4 ?m, preferably not more than 1.2 ?m, in particular not more than 1.0 ?m. The invention also relates to a method which is intended for producing a litho sheet and in the case of which a litho sheet consisting of an aluminium alloy is cold-rolled and in the case of which the litho sheet, following the final cold-rolling pass, is subjected to a degreasing treatment with a pickling step using an aqueous pickling medium.Type: ApplicationFiled: March 22, 2017Publication date: July 6, 2017Applicant: Hydro Aluminium Rolled Products GmbHInventors: Bernhard Kernig, Christoph Settele, Olaf Güßgen
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Patent number: 9206494Abstract: A strip for the production of a substrate for lithographic printing plates consisting of aluminum or an aluminum alloy and has at least to some extent a microcrystalline surface layer as a result of hot and/or cold roll passes. When analyzed in a two-dimensional microprobe analysis according to the mapping method of a surface region of the microcrystalline surface of the strip, the surface portion having an intensity ratio I/Ibulk(avg) of greater than 3 in the spectral range of the K?1 line of the X-ray emission spectrum of oxygen of the measured microcrystalline surface layer is less than 10%, preferably less than 7%, wherein, during the two-dimensional microprobe analysis, an excitation voltage of 15kV, a beam current of 50 nA and a beam cross section of 1 ?m is used with a step size of 16.75 ?m for the electron beam.Type: GrantFiled: July 20, 2007Date of Patent: December 8, 2015Assignee: Hydro Aluminium Deutschland GmbHInventors: Bernhard Kernig, Henk-Jan Brinkman
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Publication number: 20140341678Abstract: The invention relates to an aluminum alloy strip with improved surface optics, which is fabricated via hot and/or cold rolling, and consists of a type AA 3xxx, AA 5xxx, AA 6xxx or AA 8xxx aluminum alloy. The object of proposing an aluminum alloy strip that is suitable for attractive and precious surface optics despite the elevated percentage of alloy constituents is achieved in that, after degreasing, the finish-rolled aluminum alloy strip exhibits an increase in the luminance value L*(?L) in relation to the rolled-greasy state of more than 5 while measuring the color of the surface in the CIE L*a*b* color space using a standard illuminant D65 and a normal observation angle of 10°, excluding direct reflection in 45°/0° geometry.Type: ApplicationFiled: July 31, 2014Publication date: November 20, 2014Applicant: Hydro Aluminium Rolled Products GmbHInventors: Dieter Bögershausen, Jochen Schwarz, Bernhard Kernig, Kathrin Eckhard, Axel Blecher, Olaf Güßgen
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Patent number: 8869875Abstract: An aluminum alloy for producing an aluminum strip for lithographic print plate carriers, a method for producing an aluminum alloy for lithographic print plate carriers, in which, during the production of the aluminum alloy, after the electrolysis of the aluminum oxide, the liquid aluminum, up to the casting of the aluminum alloy, is supplied to a plurality of purification steps, as well as an aluminum strip for lithographic print plate carriers and a corresponding use of the aluminum strip for lithographic print plate carriers include a carbide content of less than 10 ppm, and preferably less than 1 ppm. As a result, the aluminum alloy, the method for producing the aluminum alloy, the aluminum strip, and corresponding use of the aluminum strip for lithographic print plate carriers described herein allow for the use of virtually gas-tight coatings.Type: GrantFiled: March 19, 2012Date of Patent: October 28, 2014Assignee: Hydro Aluminium Deutschland GmbHInventors: Bernhard Kernig, Werner Droste, Henk-Jan Brinkman
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Patent number: 8857332Abstract: The invention relates to an aluminum alloy strip for the production of printing plate carriers comprising water-based coatings, wherein the aluminum alloy strip has a thickness of at most 0.5 mm. The object is to propose an aluminum alloy strip for the production of printing plate carriers comprising at least one water-based coating so that punctiform coating faults are prevented. The object is achieved for an aluminum alloy strip in that the aluminum alloy strip, in a longitudinal polished section prepared using water as a lubricant, has etch figures with a cubic etching, of which the longitudinal extent is at most 15 mm.Type: GrantFiled: August 29, 2013Date of Patent: October 14, 2014Assignee: Hydro Aluminium Rolled Products GmbHInventors: Stefan Knabben, Bernhard Kernig, Jochen Hasenclever, Gerd Steinhoff, Werner Droste, Katrin Kuhnke
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Patent number: 8632955Abstract: A method of conditioning the surface of a work piece, particularly of a strip or sheet, more particularly of a lithostrip or lithosheet, including an aluminum alloy is provided. The method for conditioning the surface of a work piece and a work piece including an aluminum alloy enabling an increasing manufacturing speed in electro-chemically graining and maintaining at the same time a high quality of the grained surface, includes a conditioning method which comprises at least the two steps, degreasing the surface of the work piece with a degreasing medium and subsequently cleaning the surface of the work piece by pickling.Type: GrantFiled: June 15, 2012Date of Patent: January 21, 2014Assignee: Hydro Aluminium Deutschland GmbHInventors: Bernhard Kernig, Henk Jan Brinkman
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Publication number: 20140000469Abstract: The invention relates to an aluminium alloy strip for the production of printing plate carriers comprising water-based coatings, wherein the aluminium alloy strip has a thickness of at most 0.5 mm. The object is to propose an aluminium alloy strip for the production of printing plate carriers comprising at least one water-based coating so that punctiform coating faults are prevented. The object is achieved for an aluminium alloy strip in that the aluminium alloy strip, in a longitudinal polished section prepared using water as a lubricant, has etch figures with a cubic etching, of which the longitudinal extent is at most 15 mm.Type: ApplicationFiled: August 29, 2013Publication date: January 2, 2014Applicant: Hydro Aluminium Rolled Products GmbHInventors: Stefan Knabben, Bernhard Kernig, Jochen Hasenclever, Gerd Steinhoff, Werner Droste, Katrin Kuhnke
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Publication number: 20130263749Abstract: The invention relates to a litho sheet for electrochemical roughening, consisting of a rolled aluminium alloy, wherein the sheet surface has a topography with a maximum peak height Rp or Sp of not more than 1.4 [mu]m, preferably not more than 1.2 [mu]m, in particular not more than 1.0 [mu]m. The invention also relates to a method which is intended for producing a litho sheet and in the case of which a litho sheet consisting of an aluminium alloy is cold-rolled and in the case of which the litho sheet, following the final cold-rolling pass, is subjected to a degreasing treatment with a pickling step using an aqueous pickling medium.Type: ApplicationFiled: April 19, 2013Publication date: October 10, 2013Applicant: Hydro Aluminium Rolled Products GmbHInventors: Bernhard Kernig, Christoph Settele, Olaf Güßgen
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Patent number: 8449689Abstract: A method of conditioning the surface of a work piece, in particular of a litho-strip or litho-sheet, consisting of an aluminum alloy enables an increase in manufacturing speed in surface roughening while maintaining a high quality of the electro-chemical grained surface of the work piece with relative low effort related to facility equipment. The method of conditioning comprises at least the step of degreasing the surface of the work piece with a degreasing medium, wherein the degreasing medium contains at least 1.5 to 3% by weight of a composite of 5-40% sodium tripolyphosphate, 3-10% sodium gluconate, 3-8% of a composite of non-ionic and anionic surfactants and optionally 0.5 to 70% soda, wherein sodium hydroxide is added to the degreasing medium such that the concentration of sodium hydroxide in the aqueous degreasing medium is 0.01 to 5% by weight.Type: GrantFiled: September 14, 2012Date of Patent: May 28, 2013Assignee: Hydro Aluminium Deutschland GmbHInventors: Bernhard Kernig, Henk-Jan Brinkman