Silicon Containing Patents (Class 420/534)
  • Patent number: 10544492
    Abstract: The aluminum alloy sheet of the present invention is a specific 6000-series aluminum alloy sheet in which the total sum (total amount) of Mg and Si existing in specific aggregates of atoms (clusters) is regulated and the total sum of Mg and Si existing in the aggregates of atoms is ensured so as to be balanced with the total amount of Mg and Si solid-solutionized in the matrix, and thus BH response (bake hardenability) after natural aging at room temperature and proof strength after BH treatment (bake hardening treatment) are further improved.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: January 28, 2020
    Assignee: Kobe Steel, Ltd.
    Inventors: Hisao Shishido, Katsushi Matsumoto, Yasuhiro Aruga
  • Patent number: 10487377
    Abstract: One aspect generally relates to a Cr, Ni, Mo and Co alloy, with tightly controlled levels of impurities. One aspect relates to an alloy including about 10 to about 30 weight % Cr, about 20 to about 50 weight % Ni, about 2 to about 20 weight % Mo, about 10 to about 50 weight % Co, and less than about 0.01 weight % Al, wherein each weight % is based on the total weight of the alloy.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: November 26, 2019
    Assignees: Heraeus Deutschland GmbH & Co. KG, Saes Smart Materials, Inc.
    Inventors: René Richter, Jörg-Martin Gebert, Heiko Specht, Francis E. Sczerzenie, Radhakrishnan M. Manjeri, Weimin Yin
  • Patent number: 10272645
    Abstract: An aluminum-alloy-clad plate which includes a plurality of superposed aluminum alloy layers and which has undergone a diffusion heat treatment. Aluminum alloy layers having specific compositions are superposed so that any adjoining two of these differ in the content of Mg or Zn, and are subjected to a diffusion heat treatment to give a structure which has fine crystal grain diameters and Mg/Zn mutual diffusion regions and which has specific DSC properties. Thus, both higher strength and high formability are imparted.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: April 30, 2019
    Assignee: Kobe Steel, Ltd.
    Inventors: Kazufumi Sato, Katsushi Matsumoto
  • Patent number: 10221471
    Abstract: 3000-series aluminum alloy sheet which has a high strength enabling application to automobile body panel and excellent in bendability and shape freezability is provided.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: March 5, 2019
    Assignee: Nippon Light Metal Company, Ltd.
    Inventors: Takeshi Handa, Kiyomi Tsuchiya, Toshiya Anami
  • Patent number: 10113218
    Abstract: A casting Al—Si—Mg-based aluminum alloy comprising by mass 12.0-14.0% of Si, 1.5-4.0% of Mg, and 0.10% or less of Mn, the balance being Al and inevitable impurities, and having excellent specific rigidity, strength and ductility, and its cast member.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: October 30, 2018
    Assignee: HITACHI METALS, LTD.
    Inventors: Yoshiyuki Okubo, Masaru Yoshida
  • Patent number: 9657374
    Abstract: To obtain an Al—Mg—Si based aluminum alloy extruded material with a smooth surface and no burning without inhibiting the productivity. An aluminum alloy billet includes: Si: 2.0 to 6.0% by mass; Mg: 0.3 to 1.2% by mass; and Ti: 0.01 to 0.2% by mass, a Fe content being restricted to 0.2% or less by mass, with the balance being Al and inevitable impurities. The aluminum alloy billet is subjected to a homogenization treatment by keeping at 500 to 550° C. for 4 to 15 hours. The billet is forcibly cooled to 250° C. or lower at an average cooling rate of 50° C./hr or higher. Then, the billet is subjected to hot-extruding at an extrusion rate of 3 to 10 m/min by being heating at 450 to 500° C. The extruded material is forcibly cooled at an average cooling rate of 50° C./sec or higher and then subjected to an aging treatment. The extruded material can be manufactured that has its surface having a ten-point average roughness Rz of 80 ?m or less.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: May 23, 2017
    Assignee: Kobe Steel, Ltd.
    Inventors: Yukimasa Miyata, Shinji Yoshihara, Takahiro Shikama
  • Patent number: 9227272
    Abstract: Welding wires and methods for welding metal work pieces using the welding wires are provided. The welding wires are composite materials comprising a metal alloy and high temperature nanoparticles dispersed in the metal alloy.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: January 5, 2016
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Xiaochun Li, Hongseok Choi, David Weiss
  • Patent number: 9106041
    Abstract: An electrical power connector fabrication method includes employing a cold drawing technique by using a series of dies to repeatedly draw a metal round rod into a thin thickness conducting contact bar, processing one end of the thin thickness conducting contact bar into a mating contact portion, stamping a part of the thin thickness conducting contact to form a mounting portion, cutting off the thin thickness conducting contact bar to obtain a finished metal contact formed of the mounting portion and the mating contact portion, repeating the aforesaid steps to obtain a large amount of metal contacts, attaching individual metal contacts to respective locating notches of a contact material strip, using an injection molding technique to mold electrically insulative housings on the metal contacts to form a number of electrical power connectors at a time, and then removing the contact material strip from the metal contacts.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: August 11, 2015
    Assignee: RIIDEA International Corp.
    Inventor: Lung-Hsi Lee
  • Publication number: 20150144227
    Abstract: The present invention relates to an aluminum alloy having low density and enhanced heat resistance. An aluminum alloy having improved high temperature physical properties comprises: magnesium (Mg) in an amount of about 7 to about 11 wt %, silicon (Si) in an amount of about 4 to about 8 wt %, copper (Cu) in an amount of about 0.5 to about 2 wt % and manganese (Mn) in an amount of about 0.3 to about 0.7 wt %, and a balance of aluminum based on the total weight of the aluminum alloy. Vehicle parts such as a piston, a housing and/or a bed plate of high power engine, to which the aluminum alloy may be applied, are provided as well.
    Type: Application
    Filed: September 24, 2014
    Publication date: May 28, 2015
    Inventor: Hee-Sam Kang
  • Publication number: 20150136608
    Abstract: An aluminum alloy comprising more than 3.5% and up to 6.0% of Mg, 0.02 to 1.0% inclusive of Cu, 0.02 to 0.1% inclusive of Cr, and a remainder made up by Al and unavoidable impurities, wherein the contents of Si and Fe in the unavoidable impurities are limited to 0.05% or less and 0.05% or less, respectively, and wherein the number of intermetallic compound particles contained in the aluminum alloy and having a maximum length of 4 ?m or more is 50 particles or less per 1 mm2 of an arbitrary cross-sectional area of the aluminum alloy. An aluminum alloy is provided, which has excellent anodic-oxidation-treatability and can be used for providing an anodic-oxidation-treated aluminum alloy member having high withstand voltage properties and such excellent heat resistance that the occurrence of cracking under high temperatures conditions can be prevented.
    Type: Application
    Filed: July 10, 2013
    Publication date: May 21, 2015
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Satoru Takada, Kazunori Kobayashi, Toshiyuki Tanaka, Kenichi Inoue
  • Publication number: 20150101382
    Abstract: The present disclosure provides improved processes and compositions for continuously casting aluminum alloys. The resulting aluminum alloy sheet is useful for container body stock.
    Type: Application
    Filed: November 4, 2013
    Publication date: April 16, 2015
    Applicant: Golden Aluminum, Inc.
    Inventor: Mark Selepack
  • Patent number: 8999080
    Abstract: Disclosed are: a casting aluminum alloy that is excellent in elongation as alternative properties of a high cycle fatigue strength and a thermal fatigue strength and is suitably usable for a casting for which both of the excellent high cycle fatigue strength and the excellent thermal fatigue strength are required, for example, an internal combustion engine cylinder head; a casting made of the aluminum alloy; a manufacturing method of the casting; and further, an internal combustion engine cylinder head composed of the aluminum alloy casting and manufactured by the manufacturing method of the casting. The casting aluminum alloy contains, in terms of mass ratios, 4.0 to 7.0% of Si, 0.5 to 2.0% of Cu, 0.25 to 0.5% of Mg, no more than 0.5% of Fe, no more than 0.5% of Mn, and at least one component selected from the group consisting of Na, Ca and Sr, each mass ratio of which is 0.002 to 0.02%.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: April 7, 2015
    Assignees: Nissan Motor Co., Ltd., Nippon Light Metal Company, Ltd.
    Inventors: Hiroshi Souda, Kouichi Akiyama, Hiroshi Horikawa, Masahiko Shioda
  • Patent number: 8999079
    Abstract: New 6xxx aluminum alloy bodies and methods of producing the same are disclosed. The new 6xxx aluminum alloy bodies may be produced by preparing the aluminum alloy body for post-solutionizing cold work, cold working by at least 25%, and then thermally treating. The new 6xxx aluminum alloy bodies may realize improved strength and other properties.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: April 7, 2015
    Assignee: Alcoa, Inc.
    Inventors: Rajeev G. Kamat, John M. Newman, Ralph R. Sawtell, Jen C. Lin
  • Publication number: 20150071816
    Abstract: An aluminum alloy product and method for producing the aluminum alloy product that, in some embodiments, includes an aluminum alloy strip having at least 0.8 wt. % manganese, at least 0.6 wt % iron, or at least 0.8 wt. % manganese and at least 0.6 wt % iron. A near surface of the aluminum alloy strip, in some embodiments, is substantially free of large particles having an equivalent diameter of at least 50 micrometers and includes small particles. Each small particle, in some embodiments, has a particular equivalent diameter that is less than 3 micrometers, and a quantity per unit area of the small particles having the particular equivalent diameter is at least 0.01 particles per square micrometer at the near surface of the aluminum alloy strip.
    Type: Application
    Filed: September 8, 2014
    Publication date: March 12, 2015
    Inventors: Ali Unal, Gavin F. Wyatt-Mair, David A. Tomes, Thomas N. Rouns, Lynette M. Karabin
  • Publication number: 20150050520
    Abstract: An aluminum alloy material contains Si: 1.0 mass % to 5.0 mass % and Fe: 0.01 mass % to 2.0 mass % with balance being Al and inevitable impurities, wherein 250 pcs/mm2 or more to 7×105 pcs/mm2 or less of Si-based intermetallic compound particles having equivalent circle diameters of 0.5 to 5 ?m are present in a cross-section of the aluminum alloy material, while 100 pcs/mm2 to 7×105 pcs/mm2 of Al-based intermetallic compound particles having equivalent circle diameters of 0.5 to 5 ?m are present in a cross-section of the aluminum alloy material. An aluminum alloy structure is manufactured by bonding two or more members in vacuum or a non-oxidizing atmosphere at temperature at which a ratio of a mass of a liquid phase generated in the aluminum alloy material to a total mass of the aluminum alloy material is 5% or more and 35% or less.
    Type: Application
    Filed: October 1, 2012
    Publication date: February 19, 2015
    Inventors: Akio Niikura, Kazuko Fujita, Takashi Murase, Yoshiyuki Oya, Tomohito Kurosaki
  • Patent number: 8940406
    Abstract: The present invention relates to an automotive clad sheet product comprising a core layer and at least one clad layer wherein the core comprises an alloy of the following composition in weight %: Mg 0.45-0.8, Si 0.45-0.7, Cu 0.05-0.25, Mn 0.05-0.2, Fe up to 0.35, other elements (or impurities) <0.05 each and <0.15 in total, balance aluminum; and the at least one clad layer comprises an alloy of the following composition in weight %: Mg 0.3-0.7, Si 0.3-0.7, Mn up to 0.15, Fe up to 0.35, other elements (impurities) <0.05 each and <0.15 in total, balance aluminum. The clad automotive sheet product provides excellent hemmabtlity which does not substantially change over time and yet also provides a good age-hardening response after bake hardening.
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: January 27, 2015
    Assignee: Novelis Inc.
    Inventors: Juergen Timm, Corrado Bassi
  • Publication number: 20140363332
    Abstract: An aluminum alloy and recycle method are provided in which the recycled used beverage containers form an alloy composition useful with relatively minor or no compositional adjustments for body, end and tab stock, apart from magnesium levels.
    Type: Application
    Filed: June 28, 2013
    Publication date: December 11, 2014
    Applicant: Golden Aluminum, Inc.
    Inventors: Leland Lorentzen, Mark Selepack
  • Publication number: 20140360712
    Abstract: Disclosed is an aluminum alloy material for a heat exchanger fin, the aluminum alloy material containing Si: 1.0% to 5.0% by mass, Fe: 0.1% to 2.0% by mass, and Mn: 0.1% to 2.0% by mass with balance being Al and inevitable impurities, wherein 250 pieces/mm2 or more to 7×104 pieces/mm2 or less of Si-based intermetallic compound particles having equivalent circle diameters of 0.5 to 5 ?m are present in a cross-section of the aluminum alloy material; and wherein 10 pieces/mm2 or more and 1000 pieces/mm2 or less of the Al—Fe—Mn—Si-based intermetallic compounds having equivalent circle diameters of more than 5 ?m are present in a cross-section of the aluminum alloy material. The aluminum alloy material may further contain one or more additive elements of Mg, Cu, Zn, In, Sn, Ti, V, Zr, Cr, Ni, Be, Sr, Bi, Na, and Ca.
    Type: Application
    Filed: January 25, 2013
    Publication date: December 11, 2014
    Inventors: Kazuko Fujita, Akio Niikura, Takashi Murase
  • Publication number: 20140329108
    Abstract: In a first aspect, the invention provides aluminium alloy comprising the following composition, all values in weight %: Si 0.25-1.5 Cu 0.3-1.5 Fe up to 0.5 Mn up to 0.1 all other elements including Mg being incidental and present (if at all) then in an amount less than or equal to 0.05 individually, and less than or equal to 0.15 in aggregate, the balance being aluminium. In a second aspect, the invention provides a composite aluminium sheet product comprising a core layer and at least one clad layer wherein the at least one clad layer is an aluminium alloy comprising the following composition, all values in weight %: Si 0.25-1.5 Cu 0.3-1.5 Fe up to 0.5 Mn up to 0.1 all other elements including Mg being incidental and present (if at all) then in an amount less than or equal to 0.05 individually, and less than or equal to 0.15 in aggregate, the balance being aluminium.
    Type: Application
    Filed: November 9, 2012
    Publication date: November 6, 2014
    Applicant: NOVELIS INC.
    Inventors: Cyrille Bezencon, Corrado Bassi, Frank Schellinger
  • Patent number: 8877123
    Abstract: The invention relates to an age-hardenable aluminium alloy product for structural members having a chemical composition including, in wt. %: Cu about 3.6 to 6.0%, Mg about 0.15 to 1.2%, Ge about 0.15 to 1.1%, Si about 0.1 to 0.8%, Fe<0.25%, balance aluminium and normal and/or inevitable elements and impurities. Zn, Ag and/or Ni may or may not be present. A typical range for Zn is <0.3 or, in a further embodiment about 0.3 to 1.3%. A typical range for Ag is <0.1 or, in a further embodiment about 0.1 to 1.0%. Products made from this aluminium alloy product are very suitable for aerospace applications. The alloy can be processed to various product forms, e.g. sheet, thin plate, thick plate, extruded or forged products. Products made from this alloy can be used also as a cast product, ideally as die-cast product.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: November 4, 2014
    Assignee: Aleris Aluminum Koblenz GmbH
    Inventors: Linzhong Zhuang, Shangping Chen, Andrew Norman
  • Publication number: 20140248177
    Abstract: New 6xxx aluminum alloy bodies and methods of producing the same are disclosed. The new 6xxx aluminum alloy bodies may be produced by preparing the aluminum alloy body for post-solutionizing cold work, cold working by at least 25%, and then thermally treating. The new 6xxx aluminum alloy bodies may realize improved strength and other properties.
    Type: Application
    Filed: August 17, 2012
    Publication date: September 4, 2014
    Applicant: Alcoa Inc.
    Inventors: Rajeev G. Kamat, John M. Newman, Ralph R. Sawtell, Jen C. Lin
  • Patent number: 8771441
    Abstract: An aluminum alloy comprising 2.1 to 2.8 wt. % Cu, 1.1 to 1.7 wt. % Li, 0.1 to 0.8 wt. % Ag, 0.2 to 0.6 wt. % Mg, 0.2 to 0.6 wt. % Mn, a content of Fe and Si less or equal to 0.1 wt. % each, and a content of unavoidable impurities less than or equal to 0.05 wt. % each and 0.15 wt. % total, and the alloy being substantially zirconium free.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: July 8, 2014
    Inventors: Bernard Bes, Herve Ribes, Christophe Sigli, Timothy Warner
  • Publication number: 20140154130
    Abstract: Provided is an aluminum alloy, and particularly, a die casting aluminum alloy for a heat sink, which includes 0.01 to 0.5 wt % of Cu, 0.3 to 0.6 wt % of Fe, 1.0 to 1.5 wt % of Si, and thus may enhance heat dissipation and castability.
    Type: Application
    Filed: June 14, 2012
    Publication date: June 5, 2014
    Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
    Inventors: Jae Ik Cho, Young Chan Kim, Cheol Woo Kim, Se Weon Choi, Chang Seong Kang
  • Publication number: 20140123719
    Abstract: A substantially recrystallized extrusion may include from about 0.7 to about 1.3 wt % silicon, up to about 0.50 wt % iron, from about 0.03 to about 0.2 wt % copper, up to about 0.5 wt % manganese, from about 0.6 to about 1.2 wt % magnesium, up to about 0.05 wt % chromium, up to about 0.2 wt % zinc, up to about 0.10 wt % titanium and the balance consisting essentially of aluminum and incidental elements and impurities. The disclosed alloy may be homogenized at a temperature above 1030° F. (554.4 ° C.) and have a recrystallized grain structure. Extrusions made from the disclosed alloys and having a wall thickness ranging from about 0.050 to about 0.500 inches (1.5-˜12.5 mm) provides a tensile yield strength of greater than 42 ksi (290 MPa).
    Type: Application
    Filed: November 8, 2012
    Publication date: May 8, 2014
    Applicant: Sapa Extrusions, Inc.
    Inventor: David A. Lukasak
  • Publication number: 20140117001
    Abstract: A composition for welding or brazing aluminum comprises silicon (Si) and magnesium (Mg) along with aluminum in an alloy suitable for use in welding and brazing. The Si content may vary between approximately 4.7 and 10.9 wt %, and the Mg content may vary between approximately 0.15 wt % and 0.50 wt %. The alloy is well suited for operations in which little or no dilution from the base metal affects the Si and/or Mg content of the filler metal. The Si content promotes fluidity and avoids stress concentrations and cracking. The Mg content provides enhanced strength. Resulting joints may have a strength at least equal to that of the base metal with little or no dilution (e.g., draw of Mg). The joints may be both heat treated and artificially aged or naturally aged.
    Type: Application
    Filed: January 7, 2014
    Publication date: May 1, 2014
    Applicant: ILLINOIS TOOL WORKS INC.
    Inventor: Bruce Edward Anderson
  • Publication number: 20140096879
    Abstract: Disclosed herein is an aluminum alloy composition and a method of heat treating the aluminum alloy, to improve process control and strength of the aluminum alloy for a rear safety plate mounted on a truck, etc., complying with safety regulations wherein the aluminum alloy composition includes Silicon (Si) about 0.8 to 1.3% by weight, Iron (Fe) up to about 0.5% by weight, Copper (Cu) about 0.15 to 0.4% by weight, Manganese (Mn) up to about 0.15% by weight, Magnesium (Mg) about 0.8 to 1.2% by weight, Chromium (Cr) up to about 0.25% by weight, Zinc (Zn) up to about 0.2% by weight, Titanium (Ti) up to about 0.1% by weight and the remaining percent by weight of Aluminum (Al) of the entire composition.
    Type: Application
    Filed: December 18, 2012
    Publication date: April 10, 2014
    Applicant: HYUNDAI MOTOR COMPANY
    Inventor: Nak-Young Kim
  • Publication number: 20140099231
    Abstract: There is provided an aluminum-alloy material having sufficient electric conductivity and tensile strength as a wiring material and excellent in wire-drawing property, and an electric wire or cable using the same. An electric wire or cable includes an aluminum-alloy strand formed of an aluminum-alloy including Fe: 0.1% by mass or more to less than 1.0% by mass, Zr: 0 to 0.08% by mass, Si: 0.02 to 2.8% by mass, at least one of Cu: 0.05 to 0.63% by mass and Mg: 0.04 to 0.45% by mass, and the remainder being aluminum and unavoidable impurities.
    Type: Application
    Filed: December 12, 2013
    Publication date: April 10, 2014
    Applicant: YAZAKI CORPORATION
    Inventors: Kenichi ISHIBASHI, Kazumi MOCHIZUKI, Yasunobu KONDO
  • Publication number: 20140035323
    Abstract: In a car body or component thereof with at least one first component of sheet metal of a first aluminum alloy and at least one second component of sheet metal of a second aluminum alloy, the first and second aluminum alloys are of type AlMgSi and in the sheet metal of the second aluminum alloy a substantial part of the elements Mg and Si, which are required to achieve artificial ageing in solid solution, is present in the form of separate Mg2Si and/or Si particles in order to avoid artificial ageing. By reduction of the hardening capacity of the second component during artificial ageing of the body as part of the paint baking cycle, the car body has an improved impact protection for pedestrians in comparison with solutions according to the prior art.
    Type: Application
    Filed: September 16, 2013
    Publication date: February 6, 2014
    Applicant: Novelis Inc.
    Inventors: Corrado Bassi, Juergen Timm
  • Publication number: 20140017115
    Abstract: 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: Application
    Filed: July 10, 2012
    Publication date: January 16, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Qigui Wang, Hengcheng Liao
  • Publication number: 20140017117
    Abstract: New 6xxx aluminum alloys are disclosed. The new 6xxx aluminum alloys may include 1.05-1.50 wt. Mg, 0.60-0.95 wt. % Si, where the (wt. % Mg)/(wt. % Si) is from 1.30 to 1.90, 0.275-0.50 wt. % Cu, and from 0.05 to 1.0 wt. % of at least one secondary element, wherein the secondary element is selected from the group consisting of V, Fe, Cr, Mn, Zr, Ti, and combinations thereof.
    Type: Application
    Filed: April 12, 2013
    Publication date: January 16, 2014
    Applicant: Alcoa Inc.
    Inventors: Jen C. Lin, Anton J. Rovito, Timothy P. Doyle, Shawn P. Sullivan, Gabriele F. Ciccola, Christopher J. Tan
  • Publication number: 20140017116
    Abstract: New 6xxx aluminum alloys are disclosed. The new 6xxx aluminum alloys may include 1.05-1.50 wt. Mg, 0.60-0.95 wt. % Si, where the (wt. % Mg)/(wt. % Si) is from 1.30 to 1.90, 0.275-0.50 wt. % Cu, and from 0.05 to 1.0 wt. % of at least one secondary element, wherein the secondary element is selected from the group consisting of V, Fe, Cr, Mn, Zr, Ti, and combinations thereof.
    Type: Application
    Filed: February 22, 2013
    Publication date: January 16, 2014
    Applicant: ALCOA INC.
    Inventors: Jen C. Lin, Anton J. Rovito, Timothy P. Doyle, Shawn P. Sullivan, Gabriele F. Ciccola, Christopher J. Tan
  • Publication number: 20140003993
    Abstract: This aluminum alloy sheet has increased BH properties under low-temperature short-time-period conditions after long-term room-temperature aging by means of causing aggregates of specific atoms to be contained having a large effect in BH properties, the distance between atoms being no greater than a set distance, and containing either Mg atoms or Si atoms measured by 3D atom probe field ion microscopy in a 6000 aluminum alloy sheet containing a specific amount of Mg and Si.
    Type: Application
    Filed: March 13, 2012
    Publication date: January 2, 2014
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Katsushi Matsumoto, Yasuhiro Aruga, Hidemasa Tsuneishi
  • Publication number: 20130319585
    Abstract: An aluminum alloy includes, in weight percent, 0.70-0.85 Si, 0.14-0.25 Fe, 0.25-0.35 Cu, 0.05 max Mn, 0.75-0.90 Mg, 0.12-0.18 Cr, 0.05 max Zn, and 0.04 max Ti, the balance being aluminum and unavoidable impurities. The alloy may be suitable for extruding, and may be formed into an extruded alloy product.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 5, 2013
    Inventors: Nick C. Parson, Raynald Guay, Alexandre Maltais
  • Publication number: 20130115129
    Abstract: An aluminum alloy which is excellent in high temperature strength and heat conductivity by adjusting the composition to one keeping down the drop in high temperature strength and making the Mn content as small as possible to reduce the formation of a solid solution in the aluminum, which aluminum alloy having a composition of ingredients which contains Si: 12 to 16 mass %, N: 0.1 to 2.5 mass %, Cu: 3 to 5 mass %, Mg: 0.3 to 1.2 mass %, Fe: 0.3 to 1.5 mass %, and P: 0.004 to 0.02 mass % and furthermore 0 to 0.1 mass % of Mn and further contains, as necessary, at least one of V: 0.01 to 0.1 mass %, Zr: 0.01 to 0.6 mass %, Cr: 0.01 to 0.2 mass %, and Ti: 0.01 to 0.2 mass %. Also described is a method for producing the aluminum alloy melt.
    Type: Application
    Filed: July 6, 2011
    Publication date: May 9, 2013
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Jie Xing, Izumi Yamamoto, Kazuhiro Oda, Yutaka Ishida, Hiroshi Horikawa
  • Patent number: 8366846
    Abstract: 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: Grant
    Filed: March 26, 2009
    Date of Patent: February 5, 2013
    Assignee: Kobe Steel, Ltd.
    Inventors: Yasuo Takaki, Takeo Sakurai, Kwangjin Lee
  • Publication number: 20120312427
    Abstract: A high-strength Al—Cu—Mg—Si aluminum alloy product obtained by extrusion is characterized in that the microstructure of the entire surface of the cross-section of the aluminum alloy product is formed of recrystallized grains, the grains have an average aspect ratio (L/t) of 5.0 or less and the orientation density of the grains in the microstructure, for which the normal direction to the {001} plane is parallel to the extrusion direction in comparison with the grains orientated to random orientations, is 50 or less. The high-strength Al—Cu—Mg—Si aluminum alloy product is characterized in that rod-shaped precipitates are arranged in the grains of the matrix in the <100> direction, the precipitates have an average length of 10 to 70 nm and a maximum length of 120 nm or less, and the number density of the precipitates in the [001] direction measured from the (001) plane is 500 or more per square micrometer.
    Type: Application
    Filed: May 15, 2012
    Publication date: December 13, 2012
    Inventors: Shingo IWAMURA, Tadashi Minoda, Katsuya Kato
  • Patent number: 8328963
    Abstract: An aluminum alloy sheet of specific Al—Mg—Si composition, which, owing to preliminary aging treatment under adequate conditions, has a specific metallographic structure in which there are a large number of clusters of specific size (each being an aggregate of atoms) expressed in terms of number density, which, when observed under a transmission electron microscope of 1,000,000 magnifications, appear as dark contrast in the bright field image. It is superior in paint baking hardenability and is invulnerable to room temperature aging during storage for a comparatively long period of 1 to 4 months.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: December 11, 2012
    Assignee: Kobe Steel, Ltd.
    Inventors: Yasuo Takaki, Kwangjin Lee
  • Publication number: 20120227870
    Abstract: An aluminum-alloy sheet includes 0.10 to 0.40 mass % of Si, 0.35 to 0.80 mass % of Fe, 0.10 to 0.35 mass % of Cu, 0.20 to 0.80 mass % of Mn, and 1.5 to 2.5 mass % of Mg, the balance being Al and unavoidable impurities, wherein a content ratio (Si/Fe) of the Si to the Fe is 0.75 or less, the solute Mn content is 0.12 to 0.20 mass %, and the aluminum-alloy sheet has a proof stress of 225 N/mm2 or more after having been baked at 270° C. for 20 seconds.
    Type: Application
    Filed: February 23, 2012
    Publication date: September 13, 2012
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel Ltd.)
    Inventors: Yuji Inoue, Yasuhiro Aruga, Katsushi Matsumoto, Kiyohito Tsuruda, Kazuharu Masada
  • Publication number: 20120227871
    Abstract: An aluminum-alloy sheet includes 0.10 to 0.40 mass % of Si, 0.35 to 0.80 mass % of Fe, 0.10 to 0.35 mass % of Cu, 0.20 to 0.80 mass % of Mn, and 1.5 to 2.5 mass % of Mg, the balance being Al and unavoidable impurities, wherein a content ratio (Si/Fe) of the Si to the Fe is 0.75 or less, the area fraction of Mg2Si intermetallic compound grains having a maximum length of 1 ?m or more is 0.10% or more in a region of a section of the aluminum-alloy sheet, the region being a central region in the thickness direction of the aluminum-alloy sheet, and the aluminum-alloy sheet has a proof stress of 225 to 270 N/mm2 after having been baked at 270° C. for 20 seconds.
    Type: Application
    Filed: February 23, 2012
    Publication date: September 13, 2012
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Yuji INOUE, Yasuhiro Aruga, Katsushi Matsumoto, Kiyohito Tsuruda, Kazuharu Masada
  • Patent number: 8246763
    Abstract: A high strength aluminum alloy casting obtained by casting an aluminum alloy comprised of 7.5 to 11.5 wt % of Si, 3.8 to 4.8 wt % of Cu, 0.45 to 0.65 wt % of Mg, 0.4 to 0.7 wt % of Fe, 0.35 to 0.45 wt % of Mn, and the balance of Al and not more than 0.2 wt % of unavoidable impurities, wherein this aluminum alloy has 0.1 to 0.3 wt % of Ag added to it or contains 0.1 to 1.0 wt % of at least one element selected from the group of second additive elements comprised of Rb, K, Ba, Sr, Zr, Nb, Ta, V, and Pd and rare earth elements, and a method of production of a high strength aluminum alloy casting comprising the steps of filling a melt of an aluminum alloy in a mold to obtain a casting, taking out the aluminum alloy casting from the mold, solubilizing the high strength aluminum alloy casting by heating in a temperature range of 495 to 505° C.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: August 21, 2012
    Assignees: Denso Corporation, Nippon Light Metal Co., Ltd.
    Inventors: Kouji Yamada, Tomoyuki Hatano, Susumu Miyakawa, Hiromi Takagi, Hiroshi Horikawa, Akio Hashimoto
  • Publication number: 20120164021
    Abstract: A cold-hardening aluminium casting alloy with good thermal stability for the production of thermally and mechanically stressed cast components, wherein the alloy includes from 11.0 to 12.0 wt % silicon from 0.7 to 2.0 wt % magnesium from 0.1 to 1 wt % manganese less than or equal to 1 wt % iron less than or equal to 2 wt % copper less than or equal to 2 wt % nickel less than or equal to 1 wt % chromium less than or equal to 1 wt % cobalt less than or equal to 2 wt % zinc less than or equal to 0.25 wt % titanium 40 ppm boron optionally from 80 to 300 ppm strontium and aluminium as the remainder with further elements and impurities due to production individually at most 0.05 wt %, in total at most 0.2 wt %. The alloy is suitable in particular for the production of cylinder crank cases by the die-casting method.
    Type: Application
    Filed: May 20, 2008
    Publication date: June 28, 2012
    Applicant: ALUMINIUM RHEINFELDEN GMBH
    Inventors: Dan Dragulin, Rudiger Franke
  • Publication number: 20120148444
    Abstract: There is provided an aluminum alloy casting consisting essentially of 7.0 to 11.5 mass % of Si, 0.9 to 4.0 mass % of Mg, 0.1 to 0.65 mass % of Fe, 0.1 to 0.8 mass % of Mn and the balance being Al and unavoidable impurities, or consisting essentially of 7.0 to 11.5 mass % of Si, 0.9 to 4.0 mass % of Mg, 0.1 to 0.65 mass % of Fe, 0.1 to 0.8 mass % of Mn, 0.3 to 1.0 mass % of Cu and the balance being Al and unavoidable impurities, and containing eutectic Si grains having an aspect ratio of 2.0 or smaller and an average grain size of 1.0 micrometer or smaller. There is also provided an automotive part formed with the aluminum alloy casting and a production method of the aluminum alloy casting.
    Type: Application
    Filed: July 27, 2010
    Publication date: June 14, 2012
    Inventors: Yusuke Nagaishi, Shigeyuki Nakagawa, Koji Itakura, Haruyasu Katto, Satoru Suzuki
  • Publication number: 20120129049
    Abstract: A method of forming a silicon anode material for rechargeable cells includes providing a metal matrix that includes no more than 30 wt % of silicon, including silicon structures dispersed therein. The metal matrix is at least partially etched to at least partially isolate the silicon structures.
    Type: Application
    Filed: May 7, 2010
    Publication date: May 24, 2012
    Inventor: Philip John Rayner
  • Publication number: 20120093682
    Abstract: Various illustrative embodiments of a free-machining aluminum alloy composition and related methods are provided. The aluminum alloy composition can include an aluminum alloy and an effective amount of a graphitic material as a free-machining constituent. Free-machining means the graphitic material is capable of modifying the machining character of the aluminum alloy by affecting the generation of chip-shaped machining debris and/or the friction between the machining tool and the workpiece.
    Type: Application
    Filed: October 18, 2011
    Publication date: April 19, 2012
    Applicant: Aloca, Inc.
    Inventor: J. Daniel Bryant
  • Patent number: 8157934
    Abstract: A wear-resistant aluminum alloy material excellent in workability and wear-resistance is provided. A wear-resistant aluminum alloy material excellent in workability includes Si: 13 to 15 mass %, Cu: 5.5 to 9 mass %, Mg: 0.2 to 1 mass %, Ni: 0.5 to 1 mass %, P: 0.003 to 0.03 mass %, and the balance being Al and inevitable impurities. An average particle diameter of primary Si particles is 10 to 30 ?m, an area occupancy rate of the primary Si particles in cross-section is 3 to 12%, an average particle diameter of intermetallic compounds is 1.5 to 8 ?m, and an area occupancy rate of the intermetallic compounds in cross-section is 4 to 12%.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: April 17, 2012
    Assignee: Showa Denko K.K.
    Inventor: Yasuo Okamoto
  • Publication number: 20120034128
    Abstract: A Al—Mg—Si-based, casting aluminum alloy comprising by mass 4-6% of Mg, 3.1-4.5% of Si, 0.5-1% of Mn, 0.1-0.3% of Cr, and 0.1-0.4% of Cu, the balance being Al and inevitable impurities.
    Type: Application
    Filed: March 31, 2010
    Publication date: February 9, 2012
    Applicant: HITACHI METALS, LTD.
    Inventors: Hideki Yamaura, Hidetsuna Watanabe
  • Patent number: 8088234
    Abstract: 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: Grant
    Filed: July 5, 2007
    Date of Patent: January 3, 2012
    Assignee: Aleris Aluminum Koblenz GmbH
    Inventors: Sunil Khosla, Andrew Norman, Hugo Van Schoonevelt
  • Patent number: 8002913
    Abstract: An AA7000-series alloy including 3 to 10% Zn, 1 to 3% Mg, at most 2.5% Cu, Fe <0.25%, and Si >0.12 to 0.35%, and a method of manufacturing these aluminum alloy products. More particularly, disclosed are aluminum wrought products in relatively thick gauges, in particular 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: Grant
    Filed: July 5, 2007
    Date of Patent: August 23, 2011
    Assignee: Aleris Aluminum Koblenz GmbH
    Inventors: Sunil Khosla, Andrew Norman, Hugo Van Schoonevelt
  • Publication number: 20110194973
    Abstract: A composition for welding or brazing aluminum comprises silicon (Si) and magnesium (Mg) along with aluminum in an alloy suitable for use in welding and brazing. The Si content may vary between approximately 4.7 and 10.9 wt %, and the Mg content may vary between approximately 0.15 wt % and 0.50 wt %. The alloy is well suited for operations in which little or no dilution from the base metal affects the Si and/or Mg content of the filler metal. The Si content promotes fluidity and avoids stress concentrations and cracking. The Mg content provides enhanced strength. Resulting joints may have a strength at least equal to that of the base metal with little or no dilution (e.g., draw of Mg). The joints may be both heat treated and artificially aged or naturally aged.
    Type: Application
    Filed: February 8, 2011
    Publication date: August 11, 2011
    Applicant: Illinois Tool Works Inc.
    Inventor: Bruce Edward Anderson
  • Publication number: 20110132659
    Abstract: Provided are an aluminum alloy having high toughness and high electric conductivity, an aluminum alloy wire, an aluminum alloy stranded wire, a covered electric wire, a wire harness, and a process for production of an aluminum alloy wire. The aluminum alloy wire contains by mass 0.2 to 1.0% of Mg, 0.1 to 1.0% of Si, and 0.1 to 0.5% of Cu with the balance being Al and impurities and satisfies the relationship: 0.8?Mg/Si mass ratio?2.7. The Al alloy wire exhibits an electric conductivity of 58% IACS or above and an elongation of 10% or above. The Al alloy wire is produced via successive steps of casting, rolling, wire drawing, and softening treatment. Since the Al alloy wire has been subjected to softening treatment, the wire is excellent in toughnesses such as elongation and impact resistance, so that when used in a wire harness, the wire is inhibited from being broken in the neighborhood of a terminal in mounting the wire harness.
    Type: Application
    Filed: June 12, 2009
    Publication date: June 9, 2011
    Inventors: Misato Kusakari, Yoshihiro Nakai, Taichirou Nishikawa, Yoshiyuki Takaki, Yasuyuki Ootsuka