Patents Assigned to Tata Steel Nederland Technology BV
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Patent number: 9593391Abstract: Disclosed is a strip, sheet or blank suitable for hot forming at a temperature of 700° C. or above, including a substrate of hot formable steel, optionally coated with an active corrosion protective coating. The optionally coated steel substrate is provided with a ceramic based coating having a thickness of at most 25 micron. Also disclosed is a process to produce such strip, sheet or blank.Type: GrantFiled: February 18, 2011Date of Patent: March 14, 2017Assignee: TATA STEEL NEDERLAND TECHNOLOGY BVInventors: Tapan Kumar Rout, Johnson Go, Anil Vilas Gaikwad
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Patent number: 9315883Abstract: A particle-reinforced high strength and low density steel with improved E-modulus and method for producing the steel.Type: GrantFiled: September 13, 2013Date of Patent: April 19, 2016Assignee: TATA STEEL NEDERLAND TECHNOLOGY BVInventors: Cheng Liu, Christian Theodorus Wilhelmus Lahaye
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Patent number: 9234255Abstract: Disclosed is a process for the heat treatment of metal strip material providing mechanical properties that differ over the width of the strip, wherein the strip is heated and cooled and optionally over-aged during a continuous annealing process. At least one of the following parameters in the process differs over the width of the strip: heating rate, top temperature, top temperature holding time, cooling trajectory after top temperature; or, when over-aging is performed, at least one of the following parameters in the process differs over the width of the strip: heating rate, top temperature, top temperature holding time, cooling trajectory after top temperature, over-aging temperature, over-aging temperature holding time, lowest cooling temperature before over-aging, re-heating rate to over-aging temperature. Also, at least one of the cooling trajectories follows a non-linear temperature-time path. Also disclosed is strip material thus produced.Type: GrantFiled: January 25, 2011Date of Patent: January 12, 2016Assignee: TATA STEEL NEDERLAND TECHNOLOGY BVInventor: Steven Celotto
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Patent number: 8945972Abstract: The invention relates to a layered system for producing a solar cell on a metal substrate and to a method of producing the layered system.Type: GrantFiled: February 10, 2011Date of Patent: February 3, 2015Assignee: Tata Steel Nederland Technology BVInventors: Joost Willem Hendrik Van Krevel, Albertus Johannes Maria Wigchert, Ganesan Palaniswamy
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Publication number: 20150027597Abstract: This invention relates to a high strength bake-hardenable low density steel and to a method for producing said the steel.Type: ApplicationFiled: February 19, 2013Publication date: January 29, 2015Applicant: TATA STEEL NEDERLAND TECHNOLOGY BVInventors: Cheng Liu, Radhakanta Rana
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Publication number: 20140363694Abstract: A low density high strength steel sheet including 0.15% to 0.25% C, 2.5% to 4% Mn, 0.02% or less P, 0.015% or less S, 6% to 9% Al and 0.01% or less N, the balance being iron and inevitable impurities, wherein 1.7·(Mn—Al)+52.7·C is at least 3 and at most 4.5. A method of producing the low density and high strength steel sheet.Type: ApplicationFiled: February 21, 2012Publication date: December 11, 2014Applicant: TATA STEEL NEDERLAND TECHNOLOGY BVInventors: Cheng Liu, Radhakanta Rana
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Publication number: 20140147697Abstract: An apparatus for producing annealed steels and annealed steels produced thereby.Type: ApplicationFiled: July 15, 2012Publication date: May 29, 2014Applicants: TATA STEEL NEDERLAND TECHNOLOGY BV, TATA STEEL IJMUIDEN BVInventors: Basjan Berkhout, David Neal Hanlon, Steven Celotto, Gerardus Jacobus Paulussen, Jacques Pierre Jean Verberne
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Publication number: 20130160905Abstract: A method for producing a tempered martensitic heat resistant steel for high temperature applications at an application temperature of up to 650° C. and to a steel produced by the method. The use of the steel in the production of components for high temperature applications such as turbine blades or casings, bolting and boiler tubes, heat exchangers or other elements in power generation systems.Type: ApplicationFiled: June 10, 2011Publication date: June 27, 2013Applicant: TATA STEEL NEDERLAND TECHNOLOGY BVInventors: Urszula Alicja Sachadel, Peter Francis Morris, Philip Clarke, Cheng Liu
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Patent number: 8435352Abstract: An apparatus for coating a substrate using physical vapor deposition, including a vacuum chamber wherein a coil is placed for keeping an amount of conductive material in levitation and for heating and evaporating that material, using a varying electric current in the coil. Isolating member are placed in the coil to isolate the coil from the levitated material. The isolating member is part of a container made of non-conductive material. The container has one or more openings for guiding evaporated conductive material to the substrate to be coated. A method for coating a substrate using physical vapor deposition is also presented.Type: GrantFiled: April 27, 2006Date of Patent: May 7, 2013Assignee: Tata Steel Nederland Technology BVInventors: Johannes Alphonsus Franciscus Maria Schade Van Westrum, Laurent Christophe Bernard Baptiste, Gerardus Gleijm
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Publication number: 20120291928Abstract: Disclosed is a process for the heat treatment of metal strip material providing mechanical properties that differ over the width of the strip, wherein the strip is heated and cooled and optionally over-aged during a continuous annealing process. At least one of the following parameters in the process differs over the width of the strip: heating rate, top temperature, top temperature holding time, cooling trajectory after top temperature; or, when over-aging is performed, at least one of the following parameters in the process differs over the width of the strip: heating rate, top temperature, top temperature holding time, cooling trajectory after top temperature, over-aging temperature, over-aging temperature holding time, lowest cooling temperature before over-aging, re-heating rate to over-aging temperature. Also, at least one of the cooling trajectories follows a non-linear temperature-time path. Also disclosed is strip material thus produced.Type: ApplicationFiled: January 25, 2011Publication date: November 22, 2012Applicant: Tata Steel Nederland Technology BVInventor: Steven Celotto
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Publication number: 20120225309Abstract: A method of preparing a polyetherimide coating on a carbon steel substrate, which includes the steps of: providing an organic solvent, providing a dianhydride, providing a first diamine that is a monoaromatic diamine, providing a second diamine, placing the organic solvent, the dianhydride, the first diamine and the second diamine in a reaction vessel to form a reaction mixture, stirring the reaction mixture under inert conditions to form a polyamic acid intermediate, applying the polyamic acid intermediate on the carbon steel substrate, and curing the polyamic acid intermediate to form a polyetherimide coating.Type: ApplicationFiled: September 24, 2010Publication date: September 6, 2012Applicant: TATA STEEL NEDERLAND TECHNOLOGY BVInventors: Tapan Kumar Rout, Anil Vilas Gaikwad, Theo Dingemans, Magali Audrey Valerie Wainer
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Patent number: 7973267Abstract: An apparatus for levitation of an amount of conductive material including a coil for keeping the material in levitation using a varying electric current in the coil. The apparatus has two coils, a first coil and a second coil, both coils generating an alternating electromagnetic field during use, the alternating electric field of the first and the second coil counteracting each other. The first and second coils are positioned such that the conductive material kept in levitation between the first coil and the second coil is evaporated. A method for generating an amount of levitated conductive material is also disclosed.Type: GrantFiled: May 31, 2005Date of Patent: July 5, 2011Assignee: Tata Steel Nederland Technology BVInventors: Janis Priede, Laurent Christophe Bernard Baptiste, Gerardus Gleijm, Johannes Alphonsus Franciscus Maria Schade Van Westrum