Patents by Inventor Dieter Nützel
Dieter Nützel 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: 11654498Abstract: A process for producing an amorphous ductile brazing foil is provided. According to one example embodiment, the method includes providing a molten mass, and rapidly solidifying the molten mass on a moving cooling surface with a cooling speed of more than approximately 105° C./sec to produce an amorphous ductile brazing foil. A process for joining two or more parts is also provided. The process includes inserting a brazing foil between two or more parts to be joined, wherein the parts to be joined have a higher melting temperature than that the brazing foil to form a solder joint and the brazing foil comprises an amorphous, ductile Ni-based brazing foil; heating the solder joint to a temperature above the liquidus temperature of the brazing foil to form a heated solder joint; and cooling the heated solder joint, thereby forming a brazed joint between the parts to be joined.Type: GrantFiled: June 5, 2020Date of Patent: May 23, 2023Assignee: VACUUMSCHMELZE GMBH & CO. KGInventors: Thomas Hartmann, Dieter Nuetzel
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Patent number: 11130187Abstract: A process for producing an amorphous ductile brazing foil is provided. According to one example embodiment, the method includes providing a molten mass, and rapidly solidifying the molten mass on a moving cooling surface with a cooling speed of more than approximately 105° C./sec to produce an amorphous ductile brazing foil. A process for joining two or more parts is also provided. The process includes inserting a brazing foil between two or more parts to be joined, wherein the parts to be joined have a higher melting temperature than that the brazing foil to form a solder joint and the brazing foil comprises an amorphous, ductile Ni-based brazing foil; heating the solder joint to a temperature above the liquidus temperature of the brazing foil to form a heated solder joint; and cooling the heated solder joint, thereby forming a brazed joint between the parts to be joined.Type: GrantFiled: October 30, 2018Date of Patent: September 28, 2021Assignee: VACUUMSCHMELZE GMBH & CO. KGInventors: Thomas Hartmann, Dieter Nuetzel
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Publication number: 20200298329Abstract: A process for producing an amorphous ductile brazing foil is provided. According to one example embodiment, the method includes providing a molten mass, and rapidly solidifying the molten mass on a moving cooling surface with a cooling speed of more than approximately 105° C./sec to produce an amorphous ductile brazing foil. A process for joining two or more parts is also provided. The process includes inserting a brazing foil between two or more parts to be joined, wherein the parts to be joined have a higher melting temperature than that the brazing foil to form a solder joint and the brazing foil comprises an amorphous, ductile Ni-based brazing foil; heating the solder joint to a temperature above the liquidus temperature of the brazing foil to form a heated solder joint; and cooling the heated solder joint, thereby forming a brazed joint between the parts to be joined.Type: ApplicationFiled: June 5, 2020Publication date: September 24, 2020Applicant: VACUUMSCHMELZE GMBH & CO. KGInventors: Thomas HARTMANN, Dieter NUETZEL
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Publication number: 20190061033Abstract: A process for producing an amorphous ductile brazing foil is provided. According to one example embodiment, the method includes providing a molten mass, and rapidly solidifying the molten mass on a moving cooling surface with a cooling speed of more than approximately 105° C./sec to produce an amorphous ductile brazing foil. A process for joining two or more parts is also provided. The process includes inserting a brazing foil between two or more parts to be joined, wherein the parts to be joined have a higher melting temperature than that the brazing foil to form a solder joint and the brazing foil comprises an amorphous, ductile Ni-based brazing foil; heating the solder joint to a temperature above the liquidus temperature of the brazing foil to form a heated solder joint; and cooling the heated solder joint, thereby forming a brazed joint between the parts to be joined.Type: ApplicationFiled: October 30, 2018Publication date: February 28, 2019Applicant: VACUUMSCHMELZE GMBH & CO. KGInventors: Thomas HARTMANN, Dieter NUETZEL
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Patent number: 10137517Abstract: An amorphous, ductile brazing foil is provided. According to one example embodiment, the composition consists essentially of NirestCraBbPcSid with 2 atomic percent?a?30 atomic percent; 0.5 atomic percent?b?14 atomic percent; 2 atomic percent?c?20 atomic percent; 0 atomic percent?d?14 atomic percent; incidental impurities?0.5 atomic percent; rest Ni, where c>b>c/15 and 10 atomic percent?b+c+d?25 atomic percent.Type: GrantFiled: March 28, 2016Date of Patent: November 27, 2018Assignee: VACUUMSCHMELZE GMBH & CO KGInventors: Thomas Hartmann, Dieter Nuetzel
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Publication number: 20180200844Abstract: An amorphous ductile brazing foil is provided. The brazing foil has a composition consisting substantially of NiBalCraBb,PcSidMoeXfYg, with 21 atomic %?a?28 atomic %; 0.5 atomic %?b?7 atomic %; 4 atomic %?c?12 atomic %; 2 atomic %?d?10 atomic %; 0 atomic %<e?5 atomic %; 0 atomic %?f?5 atomic %; 0 atomic %?g?20 atomic %; incidental impurities?1.0 atomic %; balance Ni, wherein X is one or more of the elements Nb, Ta, W, Cu, C or Mn and Y is one or both of the elements Fe and Co and a/c?2.Type: ApplicationFiled: October 3, 2017Publication date: July 19, 2018Inventors: Thomas HARTMANN, Dieter NÜTZEL, Alberto BRACCHI
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Patent number: 9757810Abstract: Disclosed is an amorphous, ductile brazing foil with a composition consisting essentially of NirestCraBbPcSid with 2 atomic percent?a?30 atomic percent; 0.5 atomic percent?b?14 atomic percent; 2 atomic percent?c?20 atomic percent; 0 atomic percent?d?14 atomic percent; incidental impurities?0.5 atomic percent; rest Ni, where c>b>c/15 and 10 atomic percent?b+c+d?25 atomic percent. Also disclosed is amorphous, ductile Ni-based brazing foil having a composition consisting essentially of NirestCraBbPcSidCeXfYg wherein a, b, c, d, e, f, and g are numbers such that 2 atomic percent?a?30 atomic percent; 0.5 atomic percent?b?14 atomic percent; 2 atomic percent?c?20 atomic percent; 0 atomic percent?d?14 atomic percent; 0 atomic percent?e?5 atomic percent; 0 atomic percent?f?5 atomic percent; 0 atomic percent?g?20 atomic percent; wherein incidental impurities are present, if at all, in amounts?0.Type: GrantFiled: October 14, 2008Date of Patent: September 12, 2017Assignee: Vacuumschmelze GmbH & Co. KGInventors: Thomas Hartmann, Dieter Nuetzel
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Publication number: 20170203394Abstract: The invention provides a process for brazing two or three parts. A braze with a composition consisting of NiresCraBbPcSid with 20 atomic percent<a<22 atomic percent; 1.2 atomic percent?b?3.6 percent; 12.5 atomic percent?c?14.5 atomic percent; 0 atomic percent?d<1.5 atomic percent; incidental impurities?0.5 atomic percent; and residual Ni is inserted between two or more parts to be joined to form a joint, the parts to be joined having a higher melting temperature than the braze. The joint is heated to a temperature of between 1020° C. and 1070° C. and cooled to form a brazed joint between the parts.Type: ApplicationFiled: January 26, 2017Publication date: July 20, 2017Inventors: Thomas HARTMANN, Dieter NUETZEL
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Publication number: 20160207130Abstract: An amorphous, ductile brazing foil is provided. According to one example embodiment, the composition consists essentially of NirestCraBbPcSid with 2 atomic percent?a?30 atomic percent; 0.5 atomic percent?b?14 atomic percent; 2 atomic percent?c?20 atomic percent; 0 atomic percent?d?14 atomic percent; incidental impurities?0.5 atomic percent; rest Ni, where c>b>c/15 and 10 atomic percent?b+c+d?25 atomic percent.Type: ApplicationFiled: March 28, 2016Publication date: July 21, 2016Applicant: Vacuumschmelze GmbH & Co. KGInventors: Thomas HARTMANN, Dieter NUETZEL
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Publication number: 20150158126Abstract: An amorphous, ductile brazing foil which substantially consists of NiBalCraBb,PcSid, wherein 21 atomic %?a?28 atomic %; 0.5 atomic %?b?7 atomic %; 4 atomic %?c?12 atomic %; 2 atomic %?d?10 atomic %; incidental impurities?1.0% by weight; balance Ni, wherein a/c?2, is provided.Type: ApplicationFiled: March 8, 2012Publication date: June 11, 2015Inventors: Thomas Hartmann, Dieter Nützel, Alberto Bracchi
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Patent number: 8951368Abstract: Disclosed are amorphous, ductile brazing foils with a composition consisting essentially of FeRestNiaCrbSicBdPe, wherein 0 atomic %?a<25 atomic %; 0 atomic %?b?15 atomic %; 1 atomic %?c?10 atomic %; 4 atomic %?d?15 atomic %; 1 atomic %?e?9 atomic %; any impurities?0.5 atomic %; rest Fe, wherein 2 atomic %?c+e?10 atomic % and 15 atomic %?c+d+e?22 atomic %, or consisting essentially of FeRestNiaCrbMofCugSicBdPe, wherein 0 atomic %?a<25 atomic %; 0 atomic %?b?15 atomic %; 1 atomic %<c?10 atomic %; 4 atomic %?d?15 atomic %; 1 atomic %?e?9 atomic %; 0 atomic %<f?3 atomic %; 0 atomic %?g?3 atomic %; any impurities?0.5 atomic %; rest Fe, wherein 2 atomic %?c+e?10 atomic % and 15 atomic %?c+d+e?22 atomic %. Also disclosed are brazed objects formed using these foils, particularly exhaust gas recirculation coolers and oil coolers, and methods for making the brazing foils and for making the brazed parts.Type: GrantFiled: September 21, 2011Date of Patent: February 10, 2015Assignee: Vacuumschmelze GmbH & Co. KGInventors: Thomas Hartmann, Dieter Nuetzel
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Patent number: 8894780Abstract: Disclosed are a braze, such as a braze in the form of an amorphous, ductile brazing foil, having a composition consisting essentially of FeaNirestSibBcMd with 5 atomic percent?a?35 atomic percent, 1 atomic percent?b?15 atomic percent, 5 atomic percent<c?15 atomic percent, 0?d?4 atomic percent, rest Ni and incidental impurities, wherein M is one or more of the elements Co, Cr, Mn, Nb, Mo, Ta, Cu, Ag, Pd or C, and having a liquidus temperature TL?1025° C. Also disclosed are apparatus containing parts joined by said braze, methods for using said braze, and methods for making said amorphous, ductile brazing foil.Type: GrantFiled: September 13, 2007Date of Patent: November 25, 2014Assignee: Vacuumschmelze GmbH & Co. KGInventors: Dieter Nuetzel, Thomas Hartmann
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Publication number: 20130333810Abstract: An amorphous, ductile brazing foil is produced with a composition of FeaNibCrcSidBeMofPg with 25?a?50 atomic %; 30?b?45 atomic %; 5<c?15 atomic %; 4?d?15 atomic %; 4?e?15 atomic %; 0?f?5 atomic %; 0?g?6 atomic %; and any impurities, wherein 10?d+e+g?28 atomic % with a+b+c+d+e+f+g=100. Excellent brazing joints can be produced with these brazing foils.Type: ApplicationFiled: February 6, 2013Publication date: December 19, 2013Applicant: VACUUMSCHMELZE GMBH & CO. KGInventors: Thomas HARTMANN, Dieter Nuetzel
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Publication number: 20130146184Abstract: An amorphous, ductile brazing foil is produced with a composition of FeaNibCrcSidBeMofPg with 25?a?50 atomic %; 30?b?45 atomic %; 5<c?15 atomic %; 4?d?15 atomic %; 4?e?15 atomic %; 0?f?5 atomic %; 0?g?6 atomic %; and any impurities, wherein 10?d+e+g?28 atomic % with a+b+c+d+e+f+g=100. Excellent brazing joints can be produced with these brazing foils.Type: ApplicationFiled: February 6, 2013Publication date: June 13, 2013Applicant: VACUUMSCHMELZE GMBH & CO. KGInventors: Thomas HARTMANN, Dieter Nuetzel
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Patent number: 8372218Abstract: Magnet cores pressed using a powder of nanocrystalline or amorphous particles and a pressing additive should be characterized by minimal iron losses. These particles have first surfaces represented by the original strip surfaces and second surfaces represented by surfaces produced in a pulverization process, the overwhelming majority of these second particle surfaces being smooth cut or fracture surfaces without any plastic deformation, the proportion T of areas of plastic deformation of the second particle surfaces being 0?T?0.5.Type: GrantFiled: June 19, 2007Date of Patent: February 12, 2013Assignee: Vacuumschmelze GmbH & Co. KGInventors: Dieter Nuetzel, Markus Brunner
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Publication number: 20120006522Abstract: Disclosed are amorphous, ductile brazing foils with a composition consisting essentially of FeRestNiaCrbSicBdPe, wherein 0 atomic %?a<25 atomic %; 0 atomic %?b?15 atomic %; 1 atomic %?c?10 atomic %; 4 atomic %?d?15 atomic %; 1 atomic %?e?9 atomic %; any impurities?0.5 atomic %; rest Fe, wherein 2 atomic %?c+e?10 atomic % and 15 atomic %?c+d+e?22 atomic %, or consisting essentially of FeRestNiaCrbMofCugSicBdPe, wherein 0 atomic %?a<25 atomic %; 0 atomic %?b?15 atomic %; 1 atomic %<c?10 atomic %; 4 atomic %?d?15 atomic %; 1 atomic %?e?9 atomic %; 0 atomic %<f?3 atomic %; 0 atomic %?g?3 atomic %; any impurities?0.5 atomic %; rest Fe, wherein 2 atomic %?c+e?10 atomic % and 15 atomic %?c+d+e?22 atomic %. Also disclosed are brazed objects formed using these foils, particularly exhaust gas recirculation coolers and oil coolers, and methods for making the brazing foils and for making the brazed parts.Type: ApplicationFiled: September 21, 2011Publication date: January 12, 2012Applicant: Vacuumschmelze GmbH & Co. KGInventors: Thomas HARTMANN, Dieter Nuetzel
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Patent number: 8052809Abstract: Disclosed are amorphous, ductile brazing foils with a composition consisting essentially of FeRestNiaCrbSicBdPe, wherein 0 atomic %?a<25 atomic %; 0 atomic %?b?15 atomic %; 1 atomic %?c?10 atomic %; 4 atomic %?d?15 atomic %; 1 atomic %?e?9 atomic %; any impurities?0.5 atomic %; rest Fe, wherein 2 atomic %?c+e?10 atomic % and 15 atomic %?c+d+e?22 atomic %, or consisting essentially of FeRestNiaCrbMofCugSicBdPe, wherein 0 atomic %?a<25 atomic %; 0 atomic %?b?15 atomic %; 1 atomic %<c?10 atomic %; 4 atomic %?d?15 atomic %; 1 atomic %?e?9 atomic %; 0 atomic %<f?3 atomic %; 0 atomic %?g?3 atomic %; any impurities?0.5 atomic %; rest Fe, wherein 2 atomic %?c+e?10 atomic % and 15 atomic %?c+d+e?22 atomic %. Also disclosed are brazed objects formed using these foils, particularly exhaust gas recirculation coolers and oil coolers, and methods for making the brazing foils and for making the brazed parts.Type: GrantFiled: June 3, 2008Date of Patent: November 8, 2011Assignee: Vacuumschmelze GmbH & Co. KGInventors: Thomas Hartmann, Dieter Nuetzel
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Publication number: 20110250470Abstract: The invention provides a process for brazing two or three parts. A braze with a composition consisting of NiresCraBbPcSid with 20 atomic percent<a<22 atomic percent; 1.2 atomic percent?b?3.6 atomic percent; 12.5 atomic percent?c?14.5 atomic percent; 0 atomic percent?d<1.5 atomic percent; incidental impurities?0.5 atomic percent; and residual Ni is inserted between two or more parts to be joined to form a joint, the parts to be joined having a higher melting temperature than the braze. The joint is heated to a temperature of between 1020° C. and 1070° C. and cooled to form a brazed joint between the parts.Type: ApplicationFiled: April 8, 2011Publication date: October 13, 2011Applicant: Vacuumschmelze GmbH & Co. KGInventors: Thomas Hartmann, Dieter Nuetzel
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Publication number: 20100028716Abstract: Brazing alloy with a composition consisting essentially of FeaNiRestCrbMocCudSieBfPg, wherein 0 atomic %<=a<=50 atomic %; 5 atomic %<=b<=18 atomic %; 0.2 atomic %<c<=3 atomic %; 4 atomic %<=e<=15 atomic %; 4 atomic %<=f<=15 atomic %; 0 atomic %<=g<=6 atomic %; rest Ni, and wherein if 0 atomic %<a<=50 atomic %; then 0.5 atomic %<=d<3 atomic % and if a=0, then 0.5 atomic %<=d<=5 atomic %.Type: ApplicationFiled: August 1, 2007Publication date: February 4, 2010Inventors: Dieter Nuetzel, Thomas Hartmann
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Patent number: 7654438Abstract: The invention proposes a brazing alloy, which can be produced in particular as a homogenous, ductile, amorphous brazing foil and consists of 2 to 20 atom % of nickel, 2 to 12 atom % of tin, 0.5 to 5.0 atom % of zinc, 6 to 16 atom % of phosphorus, remainder copper and incidental impurities. The total amount of copper, nickel, tin and zinc is between 80 and 95 atom %. The addition of more than 0.5 atom % of zinc produces excellent resistance to surface oxidation in air and/or atmospheric humidity. These brazing alloys can be used to produce excellent brazed joints.Type: GrantFiled: November 10, 2008Date of Patent: February 2, 2010Assignee: Vacuumschmelze GmbH & Co. KGInventors: Thomas Hartmann, Dieter Nuetzel