Molten Or Fused Coating Patents (Class 428/939)
  • Patent number: 8940404
    Abstract: Tin-plated copper-alloy material for terminal having: a substrate made of Cu or Cu alloy; an Sn-based surface layer formed on a surface of the substrate; and a Cu—Ni—Sn alloy layer including Ni formed between the Sn-based surface layer and the substrate, in which the Cu—Ni—Sn alloy layer is made of: fine Cu—Ni—Sn alloy particles; and coarse Cu—Ni—Sn alloy particles, an average thickness of the Sn-based surface layer is not less than 0.2 ?m and not more than 0.6 ?m, an area ratio of the Cu—Ni—Sn alloy layer exposed at a surface of the Sn-based surface layer is not less than 10% and not more than 40%, and a coefficient of kinetic friction of the tin-plated copper-alloy material for terminal is not more than 0.3.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: January 27, 2015
    Assignee: Mitsubishi Materials Corporation
    Inventors: Yuki Taninouchi, Naoki Kato, Kenji Kubota
  • Patent number: 8349098
    Abstract: A process for producing a component from a steel product coated with a protective Al—Si coating, and an intermediate product that arises during the course of such a process and that can be used to produce components of the type concerned here. The steel product coated with the Al—Si coating, undergoes a first heating stage in which the temperature and the duration of the heat treatment are set such that the Al—Si coating is only partially pre-alloyed with Fe from the steel product. Then, the steel product, in a second heating stage, is heated to a heating temperature, above the Ac1 temperature, at which the steel product has an at least partially austenitic structure, wherein the temperature and the duration of the second heating stage are set such that the Al—Si coating is fully alloyed with Fe from the steel product.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: January 8, 2013
    Assignee: ThyssenKrupp Steel Europe AG
    Inventors: Friedhelm Macherey, Franz-Josef Lenze, Michael Peters, Manuela Ruthenberg, Sascha Sikora
  • Patent number: 8237010
    Abstract: A therapeutic device for promoting the healing of a wound in a mammal is disclosed. An exemplary device comprises a permeable structure having a plurality of depressions formed in a surface thereof. In use, the surface having the depressions is disposed adjacent a surface of the wound. A method of manufacturing a therapeutic device for promoting the healing of a wound in a mammal comprising the steps of providing a permeable substrate, and forming a plurality of depressions into a surface of the permeable substrate to provide the therapeutic device. A method of treating a wound comprises: providing a permeable structure comprising a plurality of randomly disposed fibers and having i) a plurality of wound surface contact elements disposed between end portions of the structure, and ii) a plurality of voids defined by the contact elements; and applying the permeable structure to at least one surface of the wound.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: August 7, 2012
    Assignee: Boehringer Technologies, L.P.
    Inventors: John R. Boehringer, John Karpowicz, Christopher L. Radl
  • Patent number: 7968210
    Abstract: An exemplary embodiment of an aluminum type plated steel sheet which excels in discoloration resistance, and weldability, which does not decorate after re-heating and which can prevent increasing of strength, and a heat shrink band using the same are provided. For example, the heat shrink band can be made of an aluminum type plated steel sheet consisting of a steel sheet being composed of, e.g., not more than about 0.005 mass % of C; not more than about 0.005 mass % of N; not less than about 0.1 mass % and not more than about 0.5 mass % of Si; not more than about 0.1 mass % of P; not more than about 0.02 mass % of S; not less than about 1.05 mass % and not more than 2.0 mass % of Mn; not more than 1.0 mass % of sol Al; a residual amount of Fe and inevitable impurities, and an aluminum type plated layer mainly consisting of Al being deposited thereon. Such exemplary sheet can be prevented from a discoloration upon, e.g., being re-heated at a temperature of not less than about 500° C.
    Type: Grant
    Filed: February 9, 2006
    Date of Patent: June 28, 2011
    Assignee: Nippon Steel Corporation
    Inventors: Kunio Nishimura, Masayuki Abe, Haruhiko Eguchi, Yoshihisa Takada
  • Patent number: 7951468
    Abstract: Molten metal is injected uniformly into a horizontal mold from a feed chamber in a horizontal or vertical direction at a controlled rate, directly on top of the metal already within the mold. A cooling medium is applied to the bottom surface of the mold, with the type and flow rate of the cooling medium being varied to produce a controlled cooling rate throughout the casting process. The rate of introduction of molten metal and the flow rate of the cooling medium are both controlled to produce a relatively uniform solidification rate within the mold, thereby producing a uniform microstructure throughout the casting, and low stresses throughout the casting.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: May 31, 2011
    Assignee: Alcoa Inc.
    Inventors: Men G. Chu, Ho Yu, Alvaro Giron, Kenneth Joseph Kallaher, Jeffrey J. Shaw
  • Patent number: 7892654
    Abstract: Coating steel strips comprising, in % by weight, C: ?1.6%, Mn: 6-30%, Al: ?10%, Ni: ?10%, Cr: ?10%, Si: ?8%, Cu: ?3%, Nb: ?0.6%, Ti: ?0.3%, V: ?0.3%, P: ?0.1%, B: ?0.01%, the rest being iron and unavoidable impurities, and a method of forming steel strips are described. Up to now, such steel strips were not adequately coatable, with a metal coating ensuring outstanding corrosion-resistance and good welding properties. This is ensured by applying an aluminium layer to the steel strip before final annealing and applying the metal coating to said aluminium layer after final annealing.
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: February 22, 2011
    Assignee: ThyssenKrupp Steel AG
    Inventors: Harald Hofmann, Manfred Meurer, Bernd Schuhmacher, Slavcho Topalski
  • Patent number: 7687152
    Abstract: A molten zinc plated steel sheet superior in plating bondability and provided with both strength and shapeability is provided and a method of producing this molten zinc plating steel sheet by a continuous zinc plating production system which enables production at a low cost without modification of the system or addition of steps is provided, said molten zinc plated steel sheet characterized by comprising, by wt %, a steel sheet including C: 0.05 to 0.40%, Si: 0.2 to 3.0%, and Mn: 0.1 to 2.5%, the balance comprised of Fe and unavoidable impurities, having on its surface a Zn plating layer containing Al: 0.01 to 1% and the balance of Zn and unavoidable impurities and containing inside the steel sheet within 2 ?m from the interface of said plating layer and steel sheet oxide particles of at least one type of oxide selected from an Al oxide, Si oxide, Mn oxide, or complex oxide comprised of at least two of Al, Si, and Mn.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: March 30, 2010
    Assignees: Nippon Steel Corporation, USINOR
    Inventors: Yoichi Ikematsu, Koki Tanaka, Shunichi Hayashi, Hideaki Sawada, Akira Takahashi, Kazuhiko Honda, Masayoshi Suehiro, Yoshihisa Takada
  • Patent number: 7615255
    Abstract: Methods and articles are disclosed. The methods are directed to depositing nickel duplex layers on substrates to inhibit tin and tin alloy surface oxidation and improve solderability of the substrates.
    Type: Grant
    Filed: August 28, 2006
    Date of Patent: November 10, 2009
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: Danny Lau, Raymund W. M. Kwok
  • Patent number: 7601433
    Abstract: A plated steel wire having a plated layer and an intermediate layer is characterized in that a content of manganese contained in both the plated layer and the intermediate layer is 0.02-0.30% in terms of average mass percentage, a content of aluminum is 8-25% in terms of average mass percentage, and a content of zinc and inevitable components is 74.70-91.98% in terms of average mass percentage, and that a total deposition amount of the intermediate layer and the plated layer per unit area of the steel wire surface is set to 700-1000 g/m2. The plated steel wire has excellent corrosion resistance and excellent workability, with the increased total deposition amount of the plated layer and the intermediate layer.
    Type: Grant
    Filed: December 6, 2005
    Date of Patent: October 13, 2009
    Assignee: Sakuratech Co., Ltd.
    Inventor: Tomio Kitsuwa
  • Patent number: 7575418
    Abstract: Disclosed herein is a turbine component comprising a substrate; and a protective structure formed on the substrate, wherein the protective structure comprises an ?-? titanium alloy, a ?-titanium alloy or a near-? titanium alloy. Disclosed herein too is a process for providing a protective structure to a turbine component, comprising affixing a protective structure on a turbine component; wherein the protective structure comprises an ?-? titanium alloy, a near-? titanium alloy or a ?-titanium alloy.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: August 18, 2009
    Assignee: General Electric Company
    Inventors: Michael Francis Xavier Gigliotti, Canan Uslu Hardwicke, Liang Jiang, Don Mark Lipkin, Samuel Vinod Thamboo
  • Patent number: 7556865
    Abstract: The subject of the invention is a method for the hot-dip coating, in a liquid bath based on zinc containing aluminum, of a running strip of iron-carbon-manganese austenitic steel, in which said strip is subjected to a heat treatment in a furnace in which an atmosphere that is reducing with respect to iron prevails, in order to obtain a strip covered with a thin manganese oxide layer, and then the strip covered with the thin manganese oxide layer is made to run through said bath, the aluminum content in the bath being adjusted to a value at least equal to the content needed for the aluminum to completely reduce the manganese oxide layer, so as to form, on the surface of the strip, a coating comprising an iron-manganese-zinc alloy layer and a zinc surface layer.
    Type: Grant
    Filed: October 10, 2005
    Date of Patent: July 7, 2009
    Assignee: Arcelor France
    Inventors: Pascal Drillet, Daniel Bouleau
  • Patent number: 7267890
    Abstract: The present invention provides: a high-strength high-ductility hot-dip galvanized steel sheet and hot-dip galvannealed steel sheet having high fatigue resistance and corrosion resistance; a high-strength hot-dip galvanized steel sheet excellent in ductility, which improves non-plating defects and plating adhesion after severe deformation, and a method of producing the same; a high-strength and high-ductility hot-dip galvanized steel sheet having high fatigue resistance and corrosion resistance; a high-strength hot-dip galvanized steel sheet and hot-dip galvannealed steel sheet having superior appearance and workability, which suppresses the generation of non-plating defects, and a method of producing the same; and a high-strength hot-dip galvannealed steel sheet and a high-strength hot-dip galvanized steel sheet, which suppress non-plating defects and surface defects and have both corrosion resistance, in particular corrosion resistance in an environment containing chlorine ion, and high ductility, and a meth
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: September 11, 2007
    Assignee: Nippon Steel Corporation
    Inventors: Nobuhiro Fujita, Masafumi Azuma, Manabu Takahashi, Yasuhide Morimoto, Masao Kurosaki, Akihiro Miyasaka
  • Patent number: 7238430
    Abstract: A method of coating of steel products such as plate and sheet using an aluminum-zinc coating alloy includes modifying the coating bath with a particulate compound constituent in effective amounts to control the spangle facet size of the coated product, improve tension bend rust stain performance, and improve coated product paintability. Constituents include borides such as titanium boride and aluminum borides, carbides such as titanium carbide, and aluminides such as titanium aluminide. The method produces a coated steel product that does not require temper rolling for painting.
    Type: Grant
    Filed: April 19, 2005
    Date of Patent: July 3, 2007
    Assignee: ISG Technologies Inc.
    Inventors: Erin T. McDevitt, Fritz J. Friedersdorf, H. E. George Rommal
  • Patent number: 7147933
    Abstract: The present invention relates to improved coatings for electrical or electronic connectors such as contacts or terminals used in automotive applications. Coatings in accordance with the present invention preferably comprise binary tin-silver coatings consisting of more than 1.0 wt % to about 20 wt %, preferably from 2.0 wt % to 15 wt %, and most preferably from 3.0 wt % to 10 wt %, silver and the balance essentially tin. The coating is preferably applied by immersing the substrate material in a molten tin-silver bath.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: December 12, 2006
    Assignee: SnAg, LLC
    Inventor: Richard W. Strobel
  • Patent number: 7074497
    Abstract: A coated steel sheet having a coated layer on surfaces of a steel sheet of a composition containing not less than 0.1 mass % and under 3 mass % of Al, wherein a following condition A or B is met: A: An AlN precipitate layer exists on a matrix side near an interface between said steel sheet and said coated layer B: Oxide of Al exists in said matrix right under said surfaces of said steel sheet.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: July 11, 2006
    Assignee: JFE Steel Corporation
    Inventors: Yoshitsugu Suzuki, Kazuaki Kyono
  • Patent number: 7045221
    Abstract: A corrosion-resistant coated base metal coated with a corrosion resistant alloy. The corrosion resistant alloy includes tin and zinc. The corrosion resistant coated base metal includes a heat created intermetallic layer primarily including copper and zinc.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: May 16, 2006
    Assignee: The Louis Berkman Company
    Inventors: Jay F. Carey, II, Mehrooz Zamanzadeh
  • Patent number: 7041386
    Abstract: A method of coating of steel products such as plate and sheet using an aluminum-zinc coating alloy includes modifying the coating bath with a particulate compound constituent in effective amounts to control the spangle facet size of the coated product, improve tension bend rust stain performance, and improve coated product paintability. Constituents include borides such as titanium boride and aluminum borides, carbides such as titanium carbide, andaluminides such as titanium aluminide. The method produces a coated steel product does not require temper rolling for painting.
    Type: Grant
    Filed: January 7, 2004
    Date of Patent: May 9, 2006
    Assignee: ISG Technologies Inc.
    Inventor: Erin T. McDevitt
  • Patent number: 7041181
    Abstract: A hardenable steel workpiece having two regions is first hardened so that both regions are of generally the same low ductility. Then only one of the regions is hot coated so as to increase the ductility of the one region while not heating and changing the ductility of the other region. The workpiece can be hardened by hot working or tempering. The hot coating can be done by dipping the one region in molten zinc.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: May 9, 2006
    Assignee: Benteler Automobil Technik GmbH
    Inventor: Stefan Gosmann
  • Patent number: 7026060
    Abstract: The invention relates to a layered structure comprising a plastic substrate, at least one intermediate metallic layer on top of this plastic substrate and a metal or metal alloy layer on top of this intermediate metallic layer. The metal or metal alloy layer is applied from the melt of a metal or metal alloy. The invention further relates to a method of manufacturing such a layered structure.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: April 11, 2006
    Assignee: N.V. Bekaert S.A.
    Inventors: Wilfried Coppens, Hugo Lievens, Wim Van Vooren
  • Patent number: 7014923
    Abstract: A gas turbine component consists of a superalloy base material with a single crystal structure and a protective MCrAlY-coating. The MCrAlY-coating the MCrAlY has a ?/?-phase and single crystal structure, which is epitaxial with the base material.
    Type: Grant
    Filed: September 6, 2002
    Date of Patent: March 21, 2006
    Assignee: Alstom Technology LTD
    Inventors: Alexander Schnell, Cyrille Bezencon, Matthias Hoebel, Abdus Suttar Khan, Maxim Konter, Wilfried Kurz
  • Patent number: 6984457
    Abstract: (1) A titanium material composed of a substrate of pure titanium or titanium alloy and an aluminum-containing layer formed thereon having a thickness no smaller than 1 ?m and containing no less than 90 mass % aluminum or aluminum plus silicon. (2) A titanium material composed of a substrate of pure titanium or titanium alloy and an aluminum-containing layer formed thereon having a thickness no smaller than 1 ?m and containing no less than 90 mass % aluminum or aluminum plus silicon, with a layer of Al—Ti intermetallic compound interposed between them. (3) A titanium material as defined in (1) wherein the substrate contains 0.5-10 mass % aluminum. (4) A titanium material as defined in (1) wherein that surface of the substrate with which the aluminum-containing layer is in contact contains 20-50 atomic % nitrogen. (5) A titanium material as defined in (1) wherein a layer of aluminum nitride is formed in the interface between the substrate and the aluminum-containing layer.
    Type: Grant
    Filed: June 22, 2004
    Date of Patent: January 10, 2006
    Assignee: Kobe Steel Ltd.
    Inventors: Kenji Yamamoto, Wataru Urushihara, Takashi Yashiki
  • Patent number: 6982012
    Abstract: A method of manufacturing a high strength steel sheet containing, in mass %, C: 0.02 to 0.04%, Si: at most 0.4%, Mn: 0.5-3.0%, P: at most 0.15%, S: at most 0.03%, Al: at most 0.50%, N: at most 0.01%, and Mo: 0.01-1.0%. The method includes performing hot rough rolling either directly or after heating to a temperature of at most 1300° C., commencing hot finish rolling either directly or after reheating or holding, completing finish rolling at a temperature of at least 780° C., performing coiling after cooling to a temperature of 750° C. or below at an average cooling rate of at least 3° C./second, heating to an annealing temperature of at least 700° C. and then cooling to a temperature of 600° C. or below at an average cooling rate of at least 3° C./second, then holding in a temperature range of 450-600° C. for at least 10 seconds, and performing hot dip galvanizing after cooling.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: January 3, 2006
    Assignee: Sumitomo Metal Industries Ltd.
    Inventors: Shigeki Nomura, Hiroyuki Nakagawa, Yoshiaki Nakazawa
  • Patent number: 6939623
    Abstract: The steel plate is manufactured from a composition comprising C, N and S in an amount of 0.0150% by weight or less in total; Mn in an amount of 0.2 to 0.8% by weight; Al inan amount of 0.6% by weight or less; Si in an amount of 0.4% by weight or less; Cu and/or Sn in an amount of 0.1 to 0.6% by weight in total; and Fe for the remainder, and inevitably present elements, whereby the steel plate can show excellent electromagnetic shield effect and hot-dip galvanization properties.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: September 6, 2005
    Assignees: POSCO, Research Institute of Industrial Science & Technology
    Inventors: Eel-Young Kim, Jae-Young Lee, Jin-Gun Sohn, Noi-Ha Cho, Young-Jin Kwak, Soon-Joo Kwon, Yong-Min Kim, Jung-Sik Lee
  • Patent number: 6924044
    Abstract: The present invention relates to improved coatings for electrical or electronic connectors such as contacts or terminals used in automotive applications. Coatings in accordance with the present invention preferably comprise binary tin-silver coatings consisting of more than 1.0 wt % to about 20 wt %, preferably from 2.0 wt % to 15 wt %, and most preferably from 3.0 wt % to 10 wt %, silver and the balance essentially tin. The coating is preferably applied by immersing the substrate material in a molten tin-silver bath.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: August 2, 2005
    Assignee: SnAg, LLC
    Inventor: Richard W. Strobel
  • Patent number: 6911268
    Abstract: Disclosed are a high strength hot-dip galvanized or galvannealed steel sheet, which has improved press formability and plating adhesion and is useful as a member for automobile, building, electric or other members, and a process for producing the same. This high strength hot-dip galvanized or galvannealed steel sheet comprises: (a) a steel sheet substrate comprising, by weight, carbon (C): 0.05 to 0.2%, silicon (Si): 0.2 to 2.0%, manganese (Mn): 0.2 to 2.5%, and aluminum (Al): 0.01 to 1.5%, the silicon and the aluminum having a mutual relationship represented by formula 0.4(%)?Si+0.8 Al (%)?2.0(%), the steel sheet substrate further comprising at least one member selected from the group consisting of (i) 0.003 to 1.0% of tin (Sn), (ii) 0.005 to 1.0% in total of at least one member selected from antimony (Sb), bismuth (Bi), and selenium (Se), (iii) 0.005 to 1.0% in total of at least one member selected from beryllium (Be), magnesium (Mg), calcium (Ca), and zirconium (Zr), and (iv) 0.005 to 1.
    Type: Grant
    Filed: December 27, 2001
    Date of Patent: June 28, 2005
    Assignee: Nippon Steel Corporation
    Inventors: Yoshihisa Takada, Masayoshi Suehiro, Takehide Senuma
  • Patent number: 6908693
    Abstract: A Sn-based metal-coated steel strip excellent in appearance comprises a Ni-based metal (such as Ni, a Ni—Sn alloy, a Ni—Zn alloy, a Ni—Fe alloy and a Ni—Co alloy) preplating layer and a Sn-based metal (such as a Sn—Zn alloy) coating formed thereon, and is characterized in that a Ni emission intensity line and an Fe emission intensity line obtained by glow discharge spectroscopy of the surface of the coated steel strip satisfy a relationship of the formula: T1?T2 wherein T1 is a sputtering time at the peak of a Ni emission intensity line, and T2 is a sputtering time at the inflection point of an Fe emission intensity line, or a relationship of the formulas: T1?T2, and 1?T1/T2?1.
    Type: Grant
    Filed: July 9, 2003
    Date of Patent: June 21, 2005
    Assignee: Nippon Steel Corporation
    Inventors: Seiji Sugiyama, Teruaki Izaki, Masao Kurosaki, Yasuto Goto, Yusho Oyama, Tomohide Kamiyama
  • Patent number: 6902829
    Abstract: A high strength dual phase cold rolled steel having controlled amounts of carbon, manganese, and molybdenum is used as a starting material in a hot-dip zinc coating process to manufacture a high strength dual phase cold rolled steel having a conventional galvanized or galvannealed coating applied to at least one surface thereof, the zinc coated steel product having a uniform coating of zinc in spite of the high manganese content of the steel.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: June 7, 2005
    Assignee: ISG Technologies Inc.
    Inventors: Rajendra Pradhan, C. Ramadeva Shastry
  • Patent number: 6887590
    Abstract: The present invention relates to a method for the manufacture of galvannealed metal sheet, wherein a hot strip is produced from an IF steel containing 0.01 to 0.1 wt. % silicon, wherein the hot strip is coiled at a coiler temperature no lower than 700° C. and no higher than 750° C., wherein a cold strip is rolled from the coiled hot strip, wherein the cold strip is recrystallization-annealed in an annealing furnace in an annealing gas atmosphere, wherein the cold strip thus annealed is provided with a zinc coating in a zinc bath, and wherein the coated cold strip is post-annealed at a galvannealing temperature no lower than 500° C. and no higher than 540° C. The invention also relates to a galvannealed metal sheet which possesses improved adhesion of the coating layer to the base material and proposes a method which is suited for the manufacture of metal sheet having such properties.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: May 3, 2005
    Assignee: ThyssenKrupp Stahl AG
    Inventors: Sabine Zeizinger, Horst Berndsen, Frank Friedel, Manfred Meurer, Michael Westholt
  • Patent number: 6861159
    Abstract: A corrosion-resistant coated base metal coated with a corrosion resistant alloy. The corrosion resistant alloy includes tin and zinc. The corrosion resistant coated base metal includes a heat created intermetallic layer primarily including copper and zinc.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: March 1, 2005
    Assignee: The Louis Berkman Company
    Inventors: Jay F. Carey, II, Mehrooz Zamanzadeh
  • Patent number: 6858322
    Abstract: A corrosion-resistant coated brass metal coated with a corrosion resistant alloy. The corrosion resistant alloy is a tin metal alloy or a tin and zinc metal alloy. The corrosion resistant metal alloy may also include one or more metal additives to improve the coating process and/or to alter the properties of the tin and zinc metal alloy.
    Type: Grant
    Filed: May 9, 2003
    Date of Patent: February 22, 2005
    Assignee: The Louis Berkman Company
    Inventors: Jay F. Carey, II, Mehrooz Zamanzadeh, Nicholas R. Hesske
  • Publication number: 20040234807
    Abstract: A coated steel sheet having a coated layer on surfaces of a steel sheet of a composition containing not less than 0.
    Type: Application
    Filed: January 28, 2004
    Publication date: November 25, 2004
    Inventors: Yoshitsugu Suzuki, Kazuaki Kyono
  • Patent number: 6815087
    Abstract: An aluminum-coated structural member includes an Al—Si—Fe alloy layer formed on a steel substrate layer. The alloy layer includes a softer region having a hardness smaller than or equal to a hardness of the steel substrate layer, extends from the surface of the steel substrate layer toward a surface of the alloy layer, over a depth range greater than or equal to 50% of a thickness of the alloy layer. The Al—Si—Fe alloy layer has an oxide weight smaller than or equal to 500 mg/dm2.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: November 9, 2004
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Kiyoshi Takagi, Eizaburo Nakanishi, Tomoyuki Yoshida
  • Patent number: 6811891
    Abstract: A corrosion-resistant coated brass metal coated with a corrosion resistant alloy. The corrosion resistant alloy is a tin metal alloy or a tin and zinc metal alloy. The corrosion resistant metal alloy may also include one or more metal additives to improve the coating process and/or to alter the properties of the tin or tin and zinc metal alloy.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: November 2, 2004
    Assignee: The Louis Berkman Company
    Inventors: Jay F. Carey, II, Mehrooz Zamanzadeh, Nicholas R. Hesske
  • Publication number: 20040213916
    Abstract: A corrosion-resistant coated brass metal coated with a corrosion resistant alloy. The corrosion resistant alloy is a tin metal alloy or a tin and zinc metal alloy. The corrosion resistant metal alloy may also include one or more metal additives to improve the coating process and/or to alter the properties of the tin or tin and zinc metal alloy.
    Type: Application
    Filed: May 26, 2004
    Publication date: October 28, 2004
    Applicant: The Louis Berkman Company, a corporation of Ohio
    Inventors: Jay F. Carey, Mehrooz Zamanzadeh, Nicholas R. Hesske
  • Publication number: 20040214029
    Abstract: A corrosion-resistant coated base metal coated with a corrosion resistant alloy. The corrosion resistant alloy includes tin and zinc. The corrosion resistant coated base metal includes a heat created intermetallic layer primarily including copper and zinc.
    Type: Application
    Filed: May 20, 2004
    Publication date: October 28, 2004
    Applicant: The Louis Berkman Company, an Ohio corporation
    Inventors: Jay F. Carey, Mehrooz Zamanzadeh
  • Patent number: 6794060
    Abstract: A corrosion-resistant coated brass metal coated with a corrosion resistant alloy. The corrosion resistant alloy is a tin metal alloy or a tin and zinc metal alloy. The corrosion resistant metal alloy may also include one or more metal additives to improve the coating process and/or to alter the properties of the tin and zinc metal alloy.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: September 21, 2004
    Assignee: The Louis Berkman Company
    Inventors: Jay F. Carey, II, Mehrooz Zamanzadeh, Nicholas R. Hesske
  • Publication number: 20040161629
    Abstract: A method of coating of steel products such as plate and sheet using an aluminum-zinc coating alloy includes modifying the coating bath with a particulate compound constituent in effective amounts to control the spangle facet size of the coated product, improve tension bend rust stain performance, and improve coated product paintability. Constituents include borides such as titanium boride and aluminum borides, carbides such as titanium carbide, and aluminides such as titanium aluminide. The method produces a coated steel product that does not require temper rolling for painting.
    Type: Application
    Filed: January 7, 2004
    Publication date: August 19, 2004
    Inventor: Erin T. McDevitt
  • Publication number: 20040110025
    Abstract: The process of the present invention is directed to a method for making zinc or zinc-aluminum alloy additions to galvanizing baths. The process involves addition of a wire of zinc or zinc-aluminum alloy introduced directly into a molten galvanizing bath to more rapidly achieve a desired zinc or zinc-aluminum chemistry thereby reducing the time required to make the bath addition.
    Type: Application
    Filed: December 9, 2002
    Publication date: June 10, 2004
    Applicant: Specialty Minerals (Michigan) Inc.
    Inventor: Paul Allan Kelly
  • Patent number: 6709770
    Abstract: A high Al hot-dip Zn—Al—Mg plated steel sheet is obtained by forming on a steel sheet surface a hot-dip plating layer comprising, in mass %, Al: more than 10 to 22% and Mg: 1-5%, and, optionally, Ti: 0.002-0.1%, B: 0.001-0.045% and Si: 0.005-0.5%. The plating layer exhibits a metallic structure of [primary crystal Al phase] mixed in a matrix of [Al/Zn/Zn2Mg ternary eutectic crystal structure]. Substantially no Zn11Mg2 phase is present in the metallic structure of the plating layer.
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: March 23, 2004
    Inventors: Atsushi Komatsu, Nobuhiko Yamaki, Atsushi Ando
  • Patent number: 6706419
    Abstract: To provide a steel sheet excellent in painting bake hardenability and anti aging property at room temperature: containing, in mass, 0.0001 to 0.20% of C, 2.0% or less of Si, 3.0% or less of Mn, 0.15% or less of P, 0.015% or less of S, and, in addition, 010% or less of Al and 0.001 to 0.10% of N so as to satisfy the expression 0.52Al/N<5 and, further, one or more of 2.5% or less of Cr, 1.0% or less of Mo and 0.1% or less of V so as to satisfy the expression (Cr+3.5MO+39V) ≧0.1, with the balance consisting of Fe and unavoidable impurities; having the value of BH170, evaluated after applying a 2% tensile deformation and then a heat treatment at 170° C. for 20 min., being 45 MPa or more, and any of the value of BH160, evaluated after applying a 2% tensile deformation and then a heat treatment at 160° C. for 10 min., and the value of BH150, evaluated after applying a 2% tensile deformation and then a heat treatment at 150° C. for 10 min.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: March 16, 2004
    Assignee: Nippon Steel Corporation
    Inventors: Naoki Yoshinaga, Manabu Takahashi, Natsuko Sugiura, Akihiro Miyasaka, Masaaki Sugiyama
  • Patent number: 6699590
    Abstract: An object of the present invention is to provide a hot-dip galvanized steel sheet which is excellent in adhesion with a hot-dip galvanized zinc layer, and has high tensile strength and good formability even when a steel sheet containing Si and Mn in relatively larger amounts is used as a basis steel sheet. The hot-dip galvanized steel sheet is composed of: a basis steel sheet containing Si in an amount of 0.05 to 2.5% and Mn in an amount of 0.2 to 3%, by mass; a Fe plated layer formed on the basis steel sheet; and a hot-dip galvanized zinc layer formed on the surface layer of the basis steel sheet via the Fe plated layer, wherein oxides containing Si and/or Mn are discontinuously dispersed in the vicinity of the interface between the basis steel sheet and the Fe plated layer.
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: March 2, 2004
    Assignee: Kobe Steel, Ltd.
    Inventors: Hiroyuki Takeda, Kouki Ikeda, Ikurou Hashimoto
  • Patent number: 6689489
    Abstract: A method of coating of steel products such as plate and sheet using an aluminum-zinc coating alloy includes modifying the coating bath with a particulate compound constituent in effective amounts to control the spangle facet size of the coated product, improve tension bend rust stain performance, and improve coated product paintability. Constituents include borides such as titanium boride and aluminum borides, carbides such as titanium carbide, and aluminides such as titanium aluminide. The method produces a coated steel product that does not require temper rolling for painting.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: February 10, 2004
    Assignee: ISG Technologies, Inc.
    Inventor: Erin T. McDevitt
  • Publication number: 20040018376
    Abstract: A coated steel sheet composed of a steel sheet and at least two types of coating layers formed thereon is provided with an electrodeposition painting having a superior appearance. The coated steel sheet has an arithmetic mean roughness Ra, which is defined by JIS B 0601-1994, of from about 0.7 to about 1.5 &mgr;m and a peak per inch PPI of from about 180 to about 250.
    Type: Application
    Filed: July 28, 2003
    Publication date: January 29, 2004
    Applicant: JFE STEEL CORPORATION
    Inventors: Kyoko Hamahara, Hisatada Nakakoji, Chiaki Kato, Nobuhiko Uesugi, Kazumasa Yoshida, Katsuhiro Takebayashi
  • Publication number: 20040009366
    Abstract: An aluminum-coated structural member includes an Al—Si—Fe alloy layer formed on a steel substrate layer. The alloy layer includes a softer region having a hardness smaller than or equal to a hardness of the steel substrate layer, extends from the surface of the steel substrate layer toward a surface of the alloy layer, over a depth range greater than or equal to 50% of a thickness of the alloy layer. The Al—Si—Fe alloy layer has an oxide weight smaller than or equal to 500 mg/dm2.
    Type: Application
    Filed: June 24, 2003
    Publication date: January 15, 2004
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Kiyoshi Takagi, Eizaburo Nakanishi, Tomoyuki Yoshida
  • Patent number: 6677058
    Abstract: Degradation of the surface luster of a hot-dip Zn—Al—Mg plated steel sheet is inhibited by controlling the contact temperature between the plating layer and a water stream in a water cooling step after plating layer solidification, thereby suitably controlling the strip temperature during contact with the water stream, and further by incorporating a small amount of a suitable readily oxidizing element in the plating bath to stabilize the oxidation state of the plating surface layer Al and Mg.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: January 13, 2004
    Assignee: Nisshin Steel Co., Ltd.
    Inventors: Atsushi Komatsu, Takao Tsujimura, Atsushi Andoh
  • Publication number: 20030219620
    Abstract: A corrosion-resistant coated brass metal coated with a corrosion resistant alloy. The corrosion resistant alloy is a tin metal alloy or a tin and zinc metal alloy. The corrosion resistant metal alloy may also include one or more metal additives to improve the coating process and/or to alter the properties of the tin or tin and zinc metal alloy.
    Type: Application
    Filed: May 9, 2003
    Publication date: November 27, 2003
    Applicant: The Louis Berkman Company, an Ohio corporation
    Inventors: Jay F. Carey, Mehrooz Zamanzadeh, Nicholas R. Hesske
  • Patent number: 6652990
    Abstract: A corrosion-resistant coated brass metal coated with a corrosion resistant alloy. The corrosion resistant alloy is a tin metal alloy or a tin and zinc metal alloy. The corrosion resistant metal alloy may also include one or more metal additives to improve the coating process and/or to alter the properties of the tin or tin and zinc metal alloy.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: November 25, 2003
    Assignee: The Louis Berkman Company
    Inventors: Jay F. Carey, II, Mehrooz Zamanzadeh, Nicholas R. Hesske
  • Patent number: 6649282
    Abstract: A tin-plating or aluminum-plating surface treated steel material with excellent corrosion resistance containing an intermetallic compound composed of one or more Group IIa (alkaline earth metal) elements and one or more Group IVb elements in a tin-based plating layer or aluminum-based plating layer on the surface of a steel material. For a tin-based plating layer, the long diameter of the intermetallic compound massive bodies is 1 82 m or greater and the short diameter/long diameter ratio is at least 0.4. For an aluminum-based plating layer, the long diameter of the intermetallic compound massive bodies is 10 &mgr;m or greater and the short diameter/long diameter ratio is at least 0.4.
    Type: Grant
    Filed: December 26, 2001
    Date of Patent: November 18, 2003
    Assignee: Nippon Steel Corporation
    Inventors: Shinichi Yamaguchi, Jun Maki, Teruaki Izaki, Masao Kurosaki, Hisaaki Sato, Hidetoshi Shindo, Seiji Sugiyama
  • Patent number: RE44153
    Abstract: Hot-rolled steel sheet which then can be cold-rolled, coated, the steel in the sheet having the following composition by weight: 0.15%<carbon<0.5% 0.5%<manganese<3% 0.1%<silicon<0.5% 0.01%<chromium<1% titanium<0.2% aluminum<0.1% phosphorus<0.1% sulfur<0.05% 0.0005%<boron<0.08%, the remainder being iron and impurities inherent in processing, the sheet ensuring a very high mechanical resistance after thermal treatment and the aluminum-based coating ensuring a high resistance to corrosion.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: April 16, 2013
    Assignee: ArcelorMittal Atlantique et Lorraine
    Inventors: Jean-Pierre Laurent, Jean-Paul Hennechart, Dominique Spehner, Jacques Devroc
  • Patent number: RE44940
    Abstract: Hot-rolled steel sheet which then can be cold-rolled, coated, the steel in the sheet having the following composition by weight: 0.15%<carbon<0.5% 0.5%<manganese<3% 0.1%<silicon<0.5% 0.01%<chromium<1% titanium<0.2% aluminum<0.1% phosphorus<0.1% sulfur<0.05% 0.0005%<boron<0.08%, the remainder being iron and impurities inherent in processing, the shoot ensuring a very high mechanical resistance after thermal treatment and the aluminum-based coating ensuring a high resistance to corrosion.
    Type: Grant
    Filed: April 15, 2013
    Date of Patent: June 10, 2014
    Assignees: ArcelorMittal France, ArcelorMittal Atlantique et Lorraine
    Inventors: Jean-Pierre Laurent, Jean-Paul Hennechart, Dominique Spehner, Jacques Devroc