Magnesium Containing Patents (Class 148/440)
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Patent number: 11976343Abstract: An aluminium based alloy, and a method for production of components by additive manufacturing (AM) or other rapid solidification process with the alloy, is based on the alloy having a composition with from 2.01 wt % to 15.0 wt % manganese, from 0.3 wt % to 2.0 wt % scandium, with a balance apart from minor alloy elements and incidental impurities of aluminium.Type: GrantFiled: July 28, 2023Date of Patent: May 7, 2024Assignee: MONASH UNIVERSITYInventors: Paul Rometsch, Xinhua Wu, Qingbo Jia
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Patent number: 11634794Abstract: The present disclosure provides an aluminum alloy to be used in laminate molding containing Si, Fe, Mn and inevitable impurities, in which ?-phase Al—Si—Fe intermetallic compound is present in the aluminum alloy. In addition, a manufacturing method of a laminated molding is provided which laminate molds using powder of this aluminum alloy. Further, a laminate molding of this aluminum alloy is provided.Type: GrantFiled: February 15, 2022Date of Patent: April 25, 2023Assignee: HONDA MOTOR CO., LTD.Inventors: Hiroyuki Watanabe, Atsushi Itani, Kazuo Kikawa
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Patent number: 11499209Abstract: The present disclosure shows a superplastic-forming aluminum alloy plate that has excellent properties for superplastic-forming, such as blow forming, and that has excellent surface properties after forming. Shown is a superplastic-forming aluminum alloy plate and a production method therefor, the superplastic-forming aluminum alloy plate being characterized by comprising an aluminum alloy which contains 2.0 to 6.0 mass % Mg, 0.5 to 1.8 mass % Mn and 0.40 mass % or less Cr and in which the balance consists of Al and unavoidable impurities, wherein the unavoidable impurities are restricted to have 0.20 mass % or less Fe and 0.20 mass % or less Si, the 0.2% proof stress is 340 MPa or more, and the density of intermetallic compounds having an equivalent circular diameter of 5 to 15 ?m at the RD-TD plane which extends along the center of the plate cross-section is 50 to 400 pieces/mm2.Type: GrantFiled: October 8, 2015Date of Patent: November 15, 2022Assignee: UACJ CORPORATIONInventors: Tomoyuki Kudo, Yoshifumi Shinzato, Ryo Kuramoto
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Patent number: 11459642Abstract: The present disclosure shows a superplastic-forming aluminum alloy plate that has excellent properties for superplastic-forming, such as blow forming, and that has excellent surface properties after forming. Shown is a superplastic-forming aluminum alloy plate and a production method therefor, the superplastic-forming aluminum alloy plate being characterized by comprising an aluminum alloy which contains 2.0 to 6.0 mass % Mg, 0.5 to 1.8 mass % Mn and 0.40 mass % or less Cr and in which the balance consists of Al and unavoidable impurities, wherein the unavoidable impurities are restricted to have 0.20 mass % or less Fe and 0.20 mass % or less Si, the 0.2% proof stress is 340 MPa or more, and the density of intermetallic compounds having an equivalent circular diameter of 5 to 15 ?m at the RD-TD plane which extends along the center of the plate cross-section is 50 to 400 pieces/mm2.Type: GrantFiled: October 8, 2015Date of Patent: October 4, 2022Assignee: UACJ CORPORATIONInventors: Tomoyuki Kudo, Yoshifumi Shinzato, Ryo Kuramoto
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Patent number: 11267081Abstract: This invention relates to the field of welding high strength aluminum structures, and more particularly to the alloy filler metal composition, its resultant microstructure, and the physical and mechanical properties which are obtained in the weld bead during fusion welding. A composition for producing small diameter aluminum welding filler metal wires having a chemistry comprising Si varying from approximately 0.3 to 0.9 wt. %, Mn varying from approximately 0.05 to 1.2 wt. %, Mg varying from approximately 2.0 to 7.0 wt. %, Cr varying from approximately 0.05 to 0.30 wt. %, Zr varying from approximately 0.05 to 0.30 wt. %, Ti varying from approximately 0.003 to 0.20 wt. %, and B varying from approximately 0.0010 to 0.030 wt. %, and a remainder of aluminum and various trace elements.Type: GrantFiled: July 13, 2017Date of Patent: March 8, 2022Inventors: Bruce E. Anderson, Stephen L. Anderson
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Patent number: 10525383Abstract: Device for filtering rolling oil, including: a tank having an inlet for the oil to be filtered, as well as a lid having at least one plate element, or a plurality of plate elements, removably stacked in the internal volume of the tank, able to be removed from the tank via the upper opening of the lid, each of the plate elements removably receiving filtration cartridges, each of the hollow plate elements constituting a collector for oil filtered by the cartridges of said plate element, each of the plate elements comprising a filtered oil outlet removably connected to a corresponding outlet of the tank via a connector. According to the invention, there are between one and three plate elements, the total number of filtration cartridges of the device is between 500 and 3000 cartridges, and is suitable to allow a nominal filtration flow of between 1000 L/min and 4000 L/min.Type: GrantFiled: October 20, 2015Date of Patent: January 7, 2020Assignee: FIVES DMSInventor: David Sequeira
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Patent number: 10178898Abstract: An improved season cracking resistance of a metallic fastener member is provided and includes a copper alloy containing zinc as a base material. The metallic fastener member includes, as a base material, a copper alloy containing zinc, and the metallic fastener member has a surface to which a rust prevention treatment has been applied and has such a property that, when analyzed by a scanning X-ray photoelectron spectroscopy apparatus, a maximum value of an atomic concentration of Mn is detected at a depth of 100 nm or less from the surface.Type: GrantFiled: March 12, 2015Date of Patent: January 15, 2019Assignee: YKK CorporationInventors: Takuya Koizumi, Kouta Kido, Yasuhara Yoshimura, Kyudo Ota, Itaru Hasegawa, Kazuya Akitsu, Yuri Katsumi
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Patent number: 9771635Abstract: An aluminum alloy that can be cast into structural components wherein the alloy has reduced casting porosity, improved combination of mechanical properties including tensile strength, fatigue, ductility in the cast condition and in the heat treated condition.Type: GrantFiled: July 10, 2012Date of Patent: September 26, 2017Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Qigui Wang, Hengcheng Liao
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Patent number: 9631879Abstract: An extrudable aluminum alloy composition includes, in weight percent, between 0.60 and 0.90 manganese, between 0.45 and 0.75 copper, between 0.05 and 0.24 magnesium, less than 0.30 iron, less than 0.30 silicon, less than 0.05 titanium, less than 0.05 vanadium, and a Cu/Mg ratio higher or equal to 3. It also relates to aluminum alloy heat exchanger extruded or drawn tube and extruded or drawn aluminum alloy tubing having the above-described aluminum alloy composition. It also relates to a heat exchanger comprising a plurality of extruded or drawn tube sections having the above-described aluminum alloy composition and a process for manufacturing same.Type: GrantFiled: July 19, 2013Date of Patent: April 25, 2017Assignee: Rio Tinto Alcan International LimitedInventor: Nicholas Charles Parson
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Patent number: 9564254Abstract: An aluminum (Al) alloy wire, which is an extra fine wire having a wire diameter of 0.5 mm or less, contains, in mass %, Mg at 0.03% to 1.5%, Si at 0.02% to 2.0%, at least one element selected from Cu, Fe, Cr, Mn and Zr at a total of 0.1% to 1.0% and the balance being Al and impurities, and has an electrical conductivity of 40% IACS or more, a tensile strength of 150 MPa or more, and an elongation of 5% or more. By producing the extra fine wire from an Al alloy of a specific composition containing Zr, Mn and other specific elements, though the extra fine wire is extra fine, it has a fine structure with a maximum grain size of 50 ?m or less and is superior in elongation.Type: GrantFiled: April 3, 2012Date of Patent: February 7, 2017Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.Inventors: Hiroyuki Kobayashi, Yoshihiro Nakai, Taichiro Nishikawa, Yoshiyuki Takaki, Misato Kusakari, Yasuyuki Otsuka
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Patent number: 9517498Abstract: The present invention relates generally to forming a threaded neck in a metal bottle manufactured by a process known as impact extrusion. More specifically, the present invention relates to methods, apparatus and alloy compositions used in the impact extrusion manufacturing of containers and other articles with sufficient strength characteristics to allow threading the container necks to receive a threaded closure on the threaded neck.Type: GrantFiled: April 7, 2014Date of Patent: December 13, 2016Assignee: Ball CorporationInventors: John L. Siles, Matthias K. van de Liefvoort, Kevin Reed Jentzsch
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Patent number: 9279170Abstract: A method for the refining and structural modification of Al—Mg—Si alloys for permanent-mold casting or sandcasting, which Al—Mg—Si alloys have the general composition of 5.0-10.0 weight % Mg; 1.0-5.0 weight % Si; 0.001-1.0 weight % Mn, 0.01-0.2 weight % Ti, less than 0.001 weight % Ca, less than 0.001 weight % Na, and less than 0.001 weight % Sr, and as the remainder, Al, and wherein phosphorus is added to the alloy melt in a quantitative range of from 0.01 to 0.06 weight %, referred to the total mass of the alloy.Type: GrantFiled: May 3, 2012Date of Patent: March 8, 2016Assignee: SAG MOTION GmbHInventors: Thomas Pabel, Peter Schumacher
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Patent number: 9214251Abstract: An aluminum alloy conductor, containing: 0.01 to 0.4 mass % of Fe, 0.1 to 0.3 mass % of Mg, 0.04 to 0.3 mass % of Si, 0.1 to 0.5 mass % of Cu, and 0.001 to 0.01 mass % of Ti and V in total, with the balance being Al and inevitable impurities, wherein the conductor contains three kinds of intermetallic compounds A, B, and C, in which the intermetallic compounds A, B, and C have a particle size of 0.1 ?m or more but 2 ?m or less, 0.03 ?m or more but less than 0.1 ?m, and 0.001 ?m or more but less than 0.03 ?m, respectively, and area ratios a, b, and c of the intermetallic compounds A, B, and C, in an arbitrary region in the conductor, satisfy: 0.1%?a?2.5%, 0.1%?b?3%, and 1%?c?10%.Type: GrantFiled: August 24, 2012Date of Patent: December 15, 2015Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.Inventors: Shigeki Sekiya, Kuniteru Mihara, Kyota Susai
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Patent number: 9096915Abstract: A method of production of an aluminum alloy inhibiting oxidation loss of the alloy melt without the use of Be which is liable to affect the human health. When preparing an aluminum alloy melt containing Mg, the method adds to the alloy, Ca, Sr, and/or Ba in a composition ratio within a range enclosed by lines connecting four points illustrated in FIG. 1 of a point A (Ca: 18 at %, Sr: 0 at %, and Ba: 82 at %), point B (Ca: 14 at %, Sr: 34 at %, and Ba: 52 at %), point C (Ca: 33.8 at %, Sr: 66.2 at %, and Ba: 0 at %), point D (Ca: 100 at %, Sr: 0 at %, and Ba: 0 at %) and excluding point D so as to adjust the Ca, Sr, and Ba components in the melt to include Ca: 0.001 to 0.5 mass % and one or both of Sr: 0.01 to 2.8 mass % and Ba: 0.01 to 7.83 mass %.Type: GrantFiled: December 10, 2009Date of Patent: August 4, 2015Assignee: NIPPON LIGHT METAL COMPANY, LTD.Inventor: Hisakazu Ito
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Publication number: 20150122378Abstract: A high electrical conductive, high temperature stable foil material, a process for the preparation of such a high electrical conductive, high temperature stable foil material, a solar cell interconnector including the high electrical conductive, high temperature stable foil material as well as the use of the high electrical conductive, high temperature stable foil material and/or the solar cell interconnector in solar power, aircraft or space applications. The high electrical conductive, high temperature stable foil material includes an aluminium alloy that has at least two elements selected from the group of scandium (Sc), magnesium (Mg), zirconium (Zr), ytterbium (Yb) and manganese (Mn).Type: ApplicationFiled: November 5, 2014Publication date: May 7, 2015Applicant: AIRBUS DS GMBHInventors: Frank PALM, Wiebke STEINS, Claus ZIMMERMANN
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Publication number: 20150107731Abstract: An aluminum alloy fin material for a heat exchanger having suitable strength before brazing enabling easy fin formation, having high strength after brazing, having a high thermal conductivity (electrical conductivity) after brazing, and having superior sag resistance, erosion resistance, self corrosion prevention, and sacrificial anode effect, a method of production of the same, and a method of production of a heat exchanger using the fin material are provided, that is, an aluminum alloy fin material having a chemical composition of Si: 0.7 to 1.4 wt %, Fe: 0.5 to 1.4 wt %, Mn: 0.7 to 1.4 wt %, and Zn: 0.5 to 2.5 wt %, Mg as an impurity limited to 0.Type: ApplicationFiled: December 30, 2014Publication date: April 23, 2015Applicant: NIPPON LIGHT METAL COMPANY, LTD.Inventors: Hideki SUZUKI, Tomohiro SASAKI, Masae NAGASAWA, Nobuki TAKAHASHI
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Patent number: 8999083Abstract: An aluminum alloy fin material for a heat exchanger having suitable strength before brazing enabling easy fin formation, having high strength after brazing, having a high thermal conductivity (electrical conductivity) after brazing, and having superior sag resistance, erosion resistance, self corrosion prevention, and sacrificial anode effect, a method of production of the same, and a method of production of a heat exchanger using the fin material are provided, that is, an aluminum alloy fin material having a chemical composition of Si: 0.7 to 1.4 wt %, Fe: 0.5 to 1.4 wt %, Mn: 0.7 to 1.4 wt %, and Zn: 0.5 to 2.5 wt %, Mg as an impurity limited to 0.Type: GrantFiled: June 8, 2007Date of Patent: April 7, 2015Assignee: Nippon Light Metal Company, Ltd.Inventors: Hideki Suzuki, Tomohiro Sasaki, Masae Nagasawa, Nobuki Takahashi
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Publication number: 20150075677Abstract: An aluminum alloy sheet which has high strength enabling application to automobile body sheet and which is excellent in press-formability and shape fixability and a method of production of the same are provided. Aluminum alloy sheet having a composition of ingredients which contains Mg, Fe, and Ti, restricts the impurity Si to less than 0.20 mass %, and has a balance of Al and unavoidable impurities and a metal structure with an average grain size of less than 15 ?m and having second phase particles with a circle equivalent diameter of 3 ?m or more in a number of less than 300/mm2 and having a tensile strength of 240 MPa or more, a yield strength of less than 130 MPa, an elongation of 30% or more, and a plane strain fracture limit at a strain rate of 20/sec of 0.20 or more.Type: ApplicationFiled: January 10, 2013Publication date: March 19, 2015Inventors: Tomoyuki Hirayama, Takeshi Handa, Toshiya Anami
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Patent number: 8956472Abstract: Systems and methods for continuously casting Al—Mg alloy sheet or plate product having a high amount of magnesium are disclosed. The Al—Mg products have 4 or 6 to 8 or 10 wt. % Mg and are resistant to both stress corrosion cracking and intergranular corrosion.Type: GrantFiled: November 7, 2008Date of Patent: February 17, 2015Assignee: Alcoa Inc.Inventors: Ali Unal, David A. Tomes, Jr., Gavin Wyatt-Mair, David Timmons
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Patent number: 8844796Abstract: Disclosed herein is a method of making a structure by ultrasonic welding and superplastic forming. The method comprises assembling a plurality of workpieces comprising a first workpiece including a first material having superplastic characteristics; ultrasonically welding the first workpiece to a second workpiece, to form an assembly; heating the assembly to a temperature at which the first material having superplastic characteristics is capable of superplastic deformation, and injecting a fluid between the first workpiece and the second workpiece to form a cavity between the first workpiece and the second workpiece.Type: GrantFiled: March 5, 2013Date of Patent: September 30, 2014Assignee: The Boeing CompanyInventor: Kevin T. Slattery
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Publication number: 20140212324Abstract: Provided by the present invention are a fine crystallite high-function metal alloy member, a method for manufacturing the same, and a business development method thereof, in which a crystallite of a metal alloy including a high-purity metal alloy whose crystal lattice is a face-centered cubic lattice, a body-centered cubic lattice, or a close-packed hexagonal lattice is made fine with the size in the level of nanometers (10?9 m to 10?6 m) and micrometers (10?6 m to 10?3 m), and the form thereof is adjusted, thereby remedying drawbacks thereof and enhancing various characteristics without losing superior characteristics owned by the alloy.Type: ApplicationFiled: April 10, 2012Publication date: July 31, 2014Applicant: THREE-O CO., LTD.Inventor: Kazuo Ogasa
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Publication number: 20140190595Abstract: The invention relates to a method for producing a strip made of an AlMgSi alloy, in which a rolling ingot made of an AlMgSi alloy is cast, the rolling ingot is subjected to homogenization, the rolling ingot having been brought to rolling temperature is hot-rolled and is optionally cold-rolled to the final thickness thereafter. The problem of providing an improved method for producing aluminum strip made of an AlMgSi alloy, with which AlMgSi strips having very good shaping behaviour can be produced reliably, is solved in that immediately after exit from the final rolling pass, the hot strip has a temperature of between more than 130° C., preferably 135° C., and at most 250° C., preferably at most 230° C., and the hot strip is wound up at this temperature.Type: ApplicationFiled: March 12, 2014Publication date: July 10, 2014Applicant: Hydro Aluminum Rolled Products GmbHInventors: Werner Kehl, Dietmar Schröder, Henk-Jan Brinkman, Natalie Hörster, Kai-Friedrich Karhausen, Eike Brünger, Thomas Wirtz
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Publication number: 20130312876Abstract: A method for adding calcium to an aluminum-scandium alloy to produce an aluminum-scandium-calcium alloy involves combining aluminum, scandium, and calcium in a melt and the common melt is quenched at a high velocity.Type: ApplicationFiled: November 30, 2011Publication date: November 28, 2013Applicant: EADS Deutschland GmbHInventor: Frank Palm
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Patent number: 8524015Abstract: An aluminum-magnesium alloy sheet having a high strength prior to baking treatment, and having a high bake softening resistance. Contains, as a percentage of mass, 2-5% magnesium, more than 0.05% and 1.5% or less iron, 0.05-1.5% manganese, and crystal grain refiner, the remainder comprising aluminum and inevitable impurities, and among the inevitable impurities, less than 0.20% silicon being contained, the total amount of iron and manganese being greater than 0.3%, the amount of iron dissolved in solid solution being 50 ppm or greater, 5000 or more intermetallic compounds with a circle-equivalent diameter of 1-6 ?m existing per square millimeter, and the average diameter of the recrystallized grains being 20 ?m or smaller.Type: GrantFiled: December 19, 2003Date of Patent: September 3, 2013Assignee: Nippon Light Metal Company, Ltd.Inventors: Pizhi Zhao, Masaru Shinohara
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Patent number: 8500926Abstract: An aluminum alloy material for high-temperature/high-speed molding containing 2.0 to 8.0 mass % of Mg, 0.05 to 1.0 mass % of Mn, 0.01 to 0.3 mass % of Zr, 0.06 to 0.4 mass % of Si and 0.06 to 0.4 mass % of Fe, with the balance being made of aluminum and inevitable impurities; an aluminum alloy material for high-temperature/high-speed molding containing 2.0 to 8.0% of Mg, 0.05 to 1.5% of Mn and 0.05 to 0.4% of Cr, Fe being restricted to 0.4% or less and Si being restricted to 0.4% or less, the grain diameter of a Cr-base intermetallic compound formed by melt-casting being 20 ?m or less, and grains of intermetallic compounds with a grain diameter in the range from 50 to 1,000 nm as Mn-base and Cr-base precipitates being present in a distribution density of 350,000 grains/mm2 or more, the aluminum alloy material being used for high-temperature/high-speed molding by subjecting the alloy material to cooling at a cooling rate of 20° C./min or more immediately after molding at a temperature range from 200 to 550° C.Type: GrantFiled: July 11, 2008Date of Patent: August 6, 2013Assignees: Furukawa-Sky Aluminum Corp, Nippon Steel & Sumitomo Metal CorporationInventors: Koji Ichitani, Tsutomu Tagata, Toshio Komatsubara, Ken Takata
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Patent number: 8486206Abstract: A method for the production of swaged aluminum alloy parts, by production of a 0.5 mm-5 mm thick alloy strip made of 1-6 wt. % Mg, <1.2 wt. % Mn, <1 wt. % Cu, <1 wt. % Zn, <3 wt. % Si, <2 wt. % Fe, <0.4 wt. % Cr, Zr<0.3, other elements <0.1 each, total of <0.5, the remainder being Al, cutting a blank from the strip, locally or totally heating the blank at a temperature of 150-350° C. for <30 secs, and swaging the heated blank with the aid of heated tools, at least partially, at a temperature of 150-350° C. in the presence of a lubricant which is compatible with later operations. The swaged parts are automotive body work parts.Type: GrantFiled: February 24, 2004Date of Patent: July 16, 2013Assignee: Constellium FranceInventors: Pierre Litalien, Alain Legendre, Dominique Daniel, Guy-Michel Raynaud
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Publication number: 20130112323Abstract: The present invention provides an aluminum alloy sheet for forming which is a high-Mg-content Al—Mg alloy sheet reduced in ?-phase precipitation and improved in press formability. This aluminum alloy sheet for forming comprises an Al—Mg alloy containing 6.0-15.0 mass % Mg. In each of square regions, each side of which has the dimension of the whole sheet width (W), that are set in a surface of the alloy sheet, the concentration of Mg is measured at width-direction measurement points, Px, set at given intervals a and b respectively in the sheet-width direction and the sheet-length direction, and the average of the values of Mg concentration measured at the plurality of width-direction measurement points (Px) is taken as a width-direction average Mg concentration (Co).Type: ApplicationFiled: August 23, 2011Publication date: May 9, 2013Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Mitsuhiro Abe, Makoto Morishita
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Patent number: 8420011Abstract: The present invention provides an Al—Mg series alloy sheet of high-Mg with improved press formability and homogeneity which can be applied to automobile outer panels and inner panels. This is an Al—Mg series aluminum alloy sheet having 0.5 to 3 mm in thickness cast by twin-roll continuous casting and cold rolled, comprising over 8% but not more than 14% Mg, 1.0% or less Fe, and 0.5% or less Si with the remainder being Al and unavoidable impurities wherein the mean conductivity of the aluminum alloy sheet is in the range of at least 20 IACS % but less than 26 IACS %, the strength-ductility balance (tensile strength×total elongation) as a material property of the aluminum alloy sheet is 11000 (MPa %) or more, and the homogeneity and press formability of the sheet have been improved.Type: GrantFiled: January 13, 2006Date of Patent: April 16, 2013Assignee: Kobe Steel, Ltd.Inventors: Makoto Morishita, Katsushi Matsumoto, Shigenobu Yasunaga, Takashi Inaba
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Patent number: 8366846Abstract: Disclosed is an Al—Mg—Si aluminum alloy sheet that can prevent ridging marks during press forming and has good reproducibility even with stricter fabricating conditions. In an Al—Mg—Si aluminum alloy sheet of a specific composition, hot rolling is performed on the basis of a set relationship between the rolling start temperature Ts and the rolling finish temperature Tf° C., whereby the relationship of the cube orientation distribution profile in the horizontal direction of the sheet with the cube orientation alone or another crystal orientation distribution profile at various locations in the depth direction of the sheet is made more uniform, suppressing the appearance of ridging marks that develop during sheet press forming.Type: GrantFiled: March 26, 2009Date of Patent: February 5, 2013Assignee: Kobe Steel, Ltd.Inventors: Yasuo Takaki, Takeo Sakurai, Kwangjin Lee
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Publication number: 20130022301Abstract: With regard to an Al—Cr—Zr based alloy having annealing temper, a high temperature strength at 180 to 200 degrees C. is ensured. An aluminum alloy for a plain bearing having improved fatigue resistance is to be provided. An aluminum alloy for a plain bearing solving the problems has a composition of 3 to 7 mass % Mg, 0.1 to 0.3 mass % Cr, and 0.1 to 0.3 mass % Zr, with the balance being Al and inevitable impurities. A principal structure of the aluminum alloy consist of an Al matrix containing solute Mg, minute particles of Cr, and Zr.Type: ApplicationFiled: December 22, 2010Publication date: January 24, 2013Applicant: TAIHO KOGYO CO., LTD.Inventors: Takashi Tomikawa, Shinichiro Sakamoto, Katsumi Yamamoto
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Patent number: 8357249Abstract: A high strength aluminum alloy is suitable for ultra thick gauge wrought product. The alloy can have 6 to 8 wt % zinc, 1 to 2 wt % magnesium, and dispersoid forming elements such as Zr, Mn, Cr, Ti, and/or Sc with the balance made of aluminum and incidental elements and/or impurities. The alloy is suitable for many uses, including in molds for injection-molded plastics.Type: GrantFiled: June 29, 2007Date of Patent: January 22, 2013Assignee: Constellium Rolled Products Ravenswood, LLCInventors: Alex Cho, Kenneth Paul Smith, Victor B. Dangerfield
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Patent number: 8353993Abstract: An aluminum alloy, an aluminum alloy wire, an aluminum alloy stranded wire, a covered electric wire, and a wire harness that are of high toughness and high electrical conductivity, and a method of manufacturing an aluminum alloy wire are provided. The aluminum alloy wire contains not less than 0.005% and not more than 2.2% by mass of Fe, and a remainder including Al and an impurity. It may further contain not less than 0.005% and not more than 1.0% by mass in total of at least one additive element selected from Mg, Si, Cu, Zn, Ni, Mn, Ag, Cr, and Zr. The Al alloy wire has an electrical conductivity of not less than 58% IACS and an elongation of not less than 10%. The Al alloy wire is manufactured through the successive steps of casting, rolling, wiredrawing, and softening treatment.Type: GrantFiled: June 11, 2009Date of Patent: January 15, 2013Assignees: Sumitomo Electric Industries, Ltd., Autonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Toyama Co., Ltd.Inventors: Misato Kusakari, Yoshihiro Nakai, Taichirou Nishikawa, Yoshiyuki Takaki, Yasuyuki Ootsuka
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Publication number: 20120328471Abstract: An aluminum alloy conductor, containing: 0.4 to 1.5 mass % of Fe, 0.1 to 0.3 mass % of Mg, and 0.04 to 0.3 mass % of Si, with the balance being Al and inevitable impurities, wherein the conductor contains three kinds of intermetallic compounds A, B, and C, in which the intermetallic compounds A, B and C have a particle size of 0.1 ?m or more but 2 ?m or less, 0.03 ?m or more but less than 0.1 ?m, and 0.001 ?m or more but less than 0.03 ?m, respectively, and area ratios a, b and c of the intermetallic compounds A, B and C, in an arbitrary region in the conductor, satisfy: 1%?a?9%, 1%?b?6%, and 1%?c?10%.Type: ApplicationFiled: August 24, 2012Publication date: December 27, 2012Inventors: Shigeki SEKIYA, Kyota Susai
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Patent number: 8337644Abstract: An aluminum alloy, comprising magnesium 4.5 to 6.5% by weight, silicon 1.0 to 3.0% by weight, manganese 0.3 to 1.0% by weight, chromium 0.02 to 0.3% by weight, titanium 0.02 to 0.2 % by weight, zirconium 0.02 to 0.2% by weight, one or more rare earth metals 0.0050 to 1.6% by weight, iron max. 0.2% by weight, and the remainder aluminum.Type: GrantFiled: May 18, 2006Date of Patent: December 25, 2012Assignee: Aluminium Lend Gesellschaft m.b.H.Inventors: Günther Trenda, Andreas Kraly
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Patent number: 8317947Abstract: The present invention provides an aluminum alloy sheet for press forming, having the crystallo-graphic texture in which the orientation density of CR orientation ({001}<520>) is higher than that of any orientation other than the CR orientation. The orientation density of the CR orientation is preferably 10 or more (random ratio). The orientation densities of all orientations other than the CR orientation are preferably less than 10. The aluminum alloy sheet is preferably made of an Al—Mg—Si alloy.Type: GrantFiled: May 29, 2008Date of Patent: November 27, 2012Assignee: Sumitomo Light Metal Industries, Ltd.Inventors: Mineo Asano, Hidetoshi Uchida
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Publication number: 20120103476Abstract: Improved 5xxx aluminum alloys having an improved combination of properties are disclosed. The new 5xxx aluminum alloys generally contain 0.50 to 3.25 wt. % Mg, 0.05 to 0.20 wt. % Sc, 0.05 to 0.20 wt. % Zr, up to 0.50 wt. % in total of Cu and Ag, less than 0.10 wt. % Mn, up to 0.30 wt. % in total of Cr, V and Ti, up to 0.50 wt. % in total of Ni and Co, up to 0.25 wt. % Fe, up to 0.25 wt. % Si, up to 0.50 wt. % Zn, and up to 0.10 wt. % of any other element, with the total of these other elements not exceeding 0.35 wt. %, the balance being aluminum. The new 5xxx aluminum alloys may be used in high strength electrical conductor products, among others.Type: ApplicationFiled: October 28, 2011Publication date: May 3, 2012Applicant: Alcoa Inc.Inventors: John M. Newman, Francine S. Bovard, Ralph R. Sawtell
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Patent number: 8147625Abstract: Aluminum alloy containing Mg and Si, in particular useful for extrusion purposes containing in wt %: Mg 0.3-0.5 Si 0.35-0.6? Mn 0.02-0.08 Cr 0.05 Zn 0.15 Cu 0.1? Fe 0.08-0.28 and in addition grain refining elements up to 0.1 wt % and incidental impurities up to 0.15 wt %. The manganese (Mn), within the specified limits, has an additional positive effect on the extrudability of an AlMgSi alloy. In addition to promoting the transformation of the AlFeSi intermetallic phases, AlMnFeSi dispersoid particles are formed during homogenization. These particles are acting as nucleation sites for Mg2Si particles during cooling after homogenization. In a high quality billet the Mg2Si particles formed during cooling after homogenization should easily dissolve during the preheating and the extrusion operation before the material reach the die opening.Type: GrantFiled: October 15, 2004Date of Patent: April 3, 2012Assignee: Norsk Hydro ASAInventors: Oddvin Reiso, Jostein Røyset, Jan Anders Sæter, Ulf Tundal, Gunnar Gjertsen
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Patent number: 8118951Abstract: An aluminum alloy sheet for a lithographic printing plate includes 0.03 to 0.15% (mass %, hereinafter the same) of Si, 0.2 to 0.7% of Fe, 0.05 to 0.5% of Mg, 0.003 to 0.05% of Ti, and 30 to 300 ppm of Ga, with the balance being aluminum and inevitable impurities, a surface area of the aluminum alloy sheet having an average recrystallized grain size of 50 ?m or less in a direction perpendicular to a rolling direction, an Mg concentration that is higher than the average Mg concentration by a factor of 5 to 50, and a Ga concentration that is higher than the average Ga concentration by a factor of 2 to 20, the surface area being an area up to a depth of 0.2 ?m from the surface of the aluminum alloy sheet.Type: GrantFiled: October 30, 2009Date of Patent: February 21, 2012Assignees: Fujifilm Corporation, Sumitomo Light Metal Industries, Ltd.Inventors: Akio Uesugi, Atsushi Matsuura, Hiroshi Ougi, Atsushi Hibino
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Patent number: 8105449Abstract: An aluminum alloy extruded product includes an aluminum alloy including 6.0 to 7.2 mass % of Zn, 1.0 to 1.6 mass % of Mg, 0.1 to 0.4 mass % of Cu, at least one component selected from the group consisting of Mn, Cr, and Zr in a respective amount of 0.25 mass % or less and a total amount of 0.15 to 0.25 mass %, 0.20 mass % or less of Fe, and 0.10 mass % or less of Si, with the balance substantially being aluminum, the aluminum alloy extruded product having a hollow cross-sectional shape, a recrystallization rate of 20% or less of a cross-sectional area of the extruded product, and a 0.2% proof stress of 370 to 450 MPa.Type: GrantFiled: September 26, 2006Date of Patent: January 31, 2012Assignee: Aisin Keikinzoku Co., Ltd.Inventors: Arata Yoshida, Shinji Makino, Tomoo Yoshida
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Patent number: 8105530Abstract: A reinforced aluminum alloy with high electric and thermal conductivity of the present invention has the weight percentage below: Mg 0.61˜0.65%, Si 0.4˜0.45%, rare earth elements 0.21˜0.3%, B 0.03˜0.10% and the balances essentially Al and unavoidable impurities. The reinforced aluminum alloy enhanced the containing of Mg and Si elements compared to the conventional aluminum alloy such as 6063, and controlled the containing of the Mg and Si in a certain relatively narrower range so as to control the desired quality of the aluminum alloy. At the same time, a Ce of the rare earth elements and B element are added into the aluminum alloy and completely solid melted the added alloys to the aluminum alloy. It is not only remaining the strength of the aluminum alloy, but also increasing the electric and thermal conductivity.Type: GrantFiled: September 29, 2008Date of Patent: January 31, 2012Inventor: Zhou Cai
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Patent number: 8088234Abstract: An AA2000-series alloy including 2 to 5.5% Cu, 0.5 to 2% Mg, at most 1% Mn, Fe <0.25%, Si >0.10 to 0.35%, and a method of manufacturing these aluminum alloy products. More particularly, disclosed are aluminum wrought products in relatively thick gauges, i.e. about 30 to 300 mm thick. While typically practiced on rolled plate product forms, this method may also find use with manufacturing extrusions or forged product shapes. Representative structural component parts made from the alloy product include integral spar members, and the like, which are machined from thick wrought sections, including rolled plate.Type: GrantFiled: July 5, 2007Date of Patent: January 3, 2012Assignee: Aleris Aluminum Koblenz GmbHInventors: Sunil Khosla, Andrew Norman, Hugo Van Schoonevelt
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Patent number: 8083871Abstract: The present invention provides a casting having increased crashworthiness including an aluminum alloy of about 6.0 wt % to about 8.0 wt % Si; about 0.12 wt % to about 0.25 wt % Mg; less than or equal to about 0.35 wt % Cu; less than or equal to about 4.0 wt % Zn; less than or equal to about 0.6 wt % Mn; and less than or equal to about 0.15 wt % Fe, wherein the cast body is treated to a T5 or T6 temper and has a tensile strength ranging from 100 MPa to 180 MPa and has a critical fracture strain greater than 10%. The present invention further provides a method of forming a casting having increased crashworthiness.Type: GrantFiled: October 26, 2006Date of Patent: December 27, 2011Assignee: Automotive Casting Technology, Inc.Inventors: Jen C. Lin, Moustapha Mbaye, Jan Ove Löland, Russell S. Long, Xinyan Yan
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Publication number: 20110268604Abstract: A reinforced aluminum alloy with high electric and thermal conductivity of the present invention has the weight percentage below: Mg 0.61˜0.65%, Si 0.4˜0.45%, rare earth elements 0.21˜0.3%, B 0.03˜0.10% and the balances essentially Al and unavoidable impurities. The reinforced aluminum alloy enhanced the containing of Mg and Si elements compared to the conventional aluminum alloy such as 6063, and controlled the containing of the Mg and Si in a certain relatively narrower range so as to control the desired quality of the aluminum alloy. At the same time, a Ce of the rare earth elements and B element are added into the aluminum alloy and completely solid melted the added alloys to the aluminum alloy. It is not only remaining the strength of the aluminum alloy, but also increasing the electric and thermal conductivity.Type: ApplicationFiled: July 1, 2011Publication date: November 3, 2011Inventor: Zhou Cai
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Patent number: 8021500Abstract: Provided are an aluminum alloy for die casting that has excellent die-castability, a molding with high hardness, and a molded article with excellent sheen. The aluminum alloy for die casting includes 0.5 to 2.5 wt. % Mn, 0.2 to 1.0 wt. % Cr, 0.1 to 0.5 wt. % Ti, 0.1 to less than 0.5 wt. % Mg, and Al. The molding is obtained by die-casting the aluminum alloy for die casting. The molding obtained by die-casting the aluminum alloy has excellent die-castability and high hardness. By performing the alumite treatment on the surface of the molding, a molded article having excellent sheen is obtained.Type: GrantFiled: March 23, 2007Date of Patent: September 20, 2011Assignee: Tanaka Sangyo Co., Ltd.Inventors: Kenji Tanaka, Takao Asami, Kiyoto Takeuchi, Yutaka Fujiwara, Koukiti Takahashi, Tadanori Manome
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Patent number: 8016958Abstract: High strength aluminum alloy sheet having superior surface roughening and formability suitable for home electrical appliances and automobile outer panels and other structural materials and a method of production of the same are provided. High strength aluminum alloy sheet having a chemical composition containing Mg: 2.0 to 3.3 mass %, Mn: 0.1 to 0.5 mass %, and Fe: 0.2 to 1.0 mass %, having a balance of unavoidable impurities and Al, and having an Si among the unavoidable impurities of less than 0.20 mass % and having an average circle equivalent diameter of intermetallic compounds of 1 ?m or less, having an area ratio of intermetallic compounds of 1.2% or more, having an average diameter of recrystallized grains of 10 ?m or less, and having a tensile strength of 220 MPa or more.Type: GrantFiled: May 25, 2007Date of Patent: September 13, 2011Assignee: Nippon Light Metal Company, Ltd.Inventors: Pizhi Zhao, Toshiya Anami, Takayuki Kobayashi, Kiyomi Tsuchiya
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Patent number: 7998402Abstract: An aluminium alloy product having high strength, excellent corrosion resistance and weldability, having the following composition in wt. %: Mg 3.5 to 6.0, Mn 0.4 to 1.2, Fe<0.5, Si<0.5, Cu<0.15, Zr<0.5, Cr<0.3, Ti 0.03 to 0.2, Sc<0.5, Zn<1.7, Li<0.5, Ag<0.4, optionally one or more of the following dispersoid forming elements selected from the group consisting of erbium, yttrium, hafnium, vanadium, each <0.5 wt. %, and impurities or incidental elements each <0.05, total <0.15, and the balance being aluminium.Type: GrantFiled: August 14, 2006Date of Patent: August 16, 2011Assignee: Aleris Aluminum Koblenz, GmbHInventors: Nadia Telioui, Steven Dirk Meijers, Andrew Norman, Achim Buerger, Sabine Maria Spangel
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Publication number: 20110140517Abstract: An aluminum alloy, an aluminum alloy wire, an aluminum alloy stranded wire, a covered electric wire, and a wire harness that are of high toughness and high electrical conductivity, and a method of manufacturing an aluminum alloy wire are provided. The aluminum alloy wire contains not less than 0.005% and not more than 2.2% by mass of Fe, and a remainder including Al and an impurity. It may further contain not less than 0.005% and not more than 1.0% by mass in total of at least one additive element selected from Mg, Si, Cu, Zn, Ni, Mn, Ag, Cr, and Zr. The Al alloy wire has an electrical conductivity of not less than 58% IACS and an elongation of not less than 10%. The Al alloy wire is manufactured through the successive steps of casting, rolling, wiredrawing, and softening treatment.Type: ApplicationFiled: June 11, 2009Publication date: June 16, 2011Inventors: Misato Kusakari, Yoshihiro Nakai, Taichirou Nishikawa, Yoshiyuki Takaki, Yasuyuki Ootsuka
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Publication number: 20110011501Abstract: The invention relates, according to a first aspect, to a process for the heat treatment of a cylinder head-type casting made from an aluminium alloy, in particular an alloy of aluminium, of silicon and of magnesium, and where appropriate of copper, comprising the steps of: —solution annealing (L) of the part for a time between three and ten hours; —quenching (S) of the part in air or in a fluidized bed; —tempering (H) of the part at the peak of resistance, or in the vicinity of the peak of resistance to attain a level of resistance of the part at least equal to 85% of the maximum level of resistance at the tempering temperature in question. According to a second aspect, the invention relates to the castings obtained at the end of the process according to the invention, and which have an improved fatigue resistance.Type: ApplicationFiled: June 19, 2008Publication date: January 20, 2011Applicant: MONTUPET S.A.Inventors: Philippe Meyer, Denis Massinon, Julien Morichon
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Patent number: 7871477Abstract: High temperature heat treatable aluminum alloys that can be used at temperatures from about ?420° F. (?251° C.) up to about 650° F. (343° C.) are described. The alloys are strengthened by dispersion of particles based on the L12 intermetallic compound Al3X. These alloys comprise aluminum, magnesium, lithium, at least one of scandium, erbium, thulium, ytterbium, and lutetium, and at least one of gadolinium, yttrium, zirconium, titanium, hafnium, and niobium.Type: GrantFiled: April 18, 2008Date of Patent: January 18, 2011Assignee: United Technologies CorporationInventor: Awadh B. Pandey
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Publication number: 20100307645Abstract: An aluminum alloy sheet for motor vehicles is produced by casting a melt, containing 3.0-3.5 mass % Mg, 0.05-0.3 mass % Fe, 0.05-0.15 mass % Si, and less than 0.1 mass % Mn, a balance substantially being inevitable impurities and Al, into a slab having a thickness of 5 to 15 mm in a twin-belt caster so that cooling rate at ¼ depth of thickness of the slab is 20 to 200° C./sec; winding the cast thin slab into a coiled thin slab subjected to cold rolling with a roll having a surface roughness of 0.2 to 0.7 ?m Ra at a cold rolling reduction of 50 to 98%; subjecting the cold rolled sheet to final annealing either continuously in a CAL at a holding temperature of 400 to 520° C. or in a batch annealing furnace at a holding temperature of 300 to 400° C.; and subjecting the resulting sheet to straightening with a leveler.Type: ApplicationFiled: February 6, 2008Publication date: December 9, 2010Applicant: Nippon Light Metal Co., Ltd.Inventors: Pizhi Zhao, Toshiya Anami, Kazumitsu Mizushima, Akira Goto, Hitoshi Kazama, Kunihiro Yasunaga