Fe Patents (Class 428/653)
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Patent number: 7922835Abstract: A high strength steel sheet excellent in formability which has a chemical composition in mass %: C: 0.03 to 0.20%, Si: 0.005 to 0.3%, Mn: 1.0 to 3.1%, P: 0.001 to 0.06%, S: 0.001 to 0.01%, N: 0.0005 to 0.01%, Al: 0.2 to 1.2%, Mo?0.5%, and the balance: Fe and inevitable impurities, with the proviso that the values of mass % for Si and Al satisfy the following formula (1): (0.0012×[objective value of TS]?0.29?[Si])/2.45<Al<1.5?3×[Si] . . . (1) wherein [objective value of TS] represents a design strength value for the steel sheet in an Mpa unit, and has a metal structure containing ferrite and martensite. The above high strength steel sheet is also excellent in formability and the capability of being chemically treated and that of being hot-dip zinc sheeted.Type: GrantFiled: June 24, 2003Date of Patent: April 12, 2011Assignee: Nippon Steel CorporationInventors: Toshiki Nonaka, Hirokazu Taniguchi, Masaaki Mizutani, Nobuhiro Fujita
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Patent number: 7923576Abstract: The invention relates to tuned multifunctional linker molecules for charge transport through organic-inorganic composite structures. The problem underlying the present invention is to provide multifunctional linker molecules for tuning the conductivity in nanoparticle-linker assemblies which can be used in the formation of electronic networks and circuits and thin films of nanoparticles. The problem is solved according to the invention by providing a multifunctional linker molecule of the general structure CON1-FUNC1-X-FUNC2-CON2 in which X is the central body of the molecule, FUNC1 and FUNC2 independently of each other are molecular groups introducing a dipole moment and/or capable of forming intermolecular and/or intramolecular hydrogen bonding networks, and CON1 and CON2 independently of each other are molecular groups binding to nanostructured units comprising metal and semiconductor materials.Type: GrantFiled: January 3, 2006Date of Patent: April 12, 2011Assignee: Sony Deutschland GmbHInventors: Jurina Wessels, William Ford, Akio Yasuda
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Patent number: 7919192Abstract: The disclosed subject matter relates to a metal multi-layered film structure that includes two types of metal films including first metal films and second metal films alternately formed on a resin substrate. The first metal films can be composed of an aluminum-based material having a film thickness between 0.7 nm and 20 nm. The second metal films can be composed of a metal selected from the group consisting of stainless steel-based materials, nickel-based materials, cobalt-based materials, titanium-based materials and chromium-based materials, having a film thickness ranging from 1 nm to 20 nm. This metal multi-layered film structure can be manufactured through a method of sputtering. The metal multi-layered film structure is suitable for an extension reflector for vehicular lamps.Type: GrantFiled: August 10, 2007Date of Patent: April 5, 2011Assignee: Stanley Electric Co., Ltd.Inventors: Yoshio Suzuki, Akira Suzuki
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Patent number: 7906221Abstract: Cookware having improved uniform heat transfer over the entire cross section thereof, the cookware formed from a multi-layered composite metal having a layer of stainless steel roll bonded at or near the core of the composite to act as a thermal barrier and provide more uniform heat distribution on the cook surface. The stainless layer is roll bonded to layers of aluminum which, in turn, is roll bonded to layers of stainless steel or aluminum or copper. The layer of stainless steel adjacent to the cooking range may be a ferromagnetic grade of stainless steel if induction-type heating is desired. The cookware may include a non-stick surface applied thereto.Type: GrantFiled: April 23, 2007Date of Patent: March 15, 2011Assignee: All-Clad Metalcrafters LLCInventor: William A. Groll
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Patent number: 7906220Abstract: A steel/aluminum welded structure comprises a hot-dip Al-coated steel sheet 1 spot welded with an aluminum or aluminum alloy sheet 2. The steel sheet 1 is coated with a coating layer 4 containing, by mass, 3-12% of Si and 0.5-5% of Fe. An area ratio of an Al—Fe binary alloy layer, formed at the joint boundary, is controlled to 90% or less. An unalloyed region 9 exists between an Al—Fe—Si ternary alloy layer 6 at an interface of a steel substrate 5 with the coating layer 4 interface and the Al—Fe binary alloy layer at the joint boundary. A steel substrate 5 preferably contains 0.002-0.020% of N for formation of a N-enriched surface layer in contact with the coating layer 4. The N-enriched layer impedes propagation of the brittle Al—Fe binary alloy layer to the whole of the joint boundary and raises joint strength of the steel/aluminum welded structure.Type: GrantFiled: September 27, 2004Date of Patent: March 15, 2011Assignee: Nisshin Steel Co., Ltd.Inventors: Yasunori Hattori, Tadaaki Miono, Atsushi Andoh, Tetsu Iwase, Seiji Sasabe
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Publication number: 20110059335Abstract: A composite tube having a corrosion resistant member and a load-bearing member is provided. The corrosion resistant member is a Cu—Al alloy and has a wall thickness of at least 0.5 mm, while the load-bearing member is a Fe, Ni or Co based alloy having a wall thickness of at least 1 mm. The composite tube can be manufactured by conventional means like extrusion, rolling, welding etc.Type: ApplicationFiled: August 27, 2004Publication date: March 10, 2011Inventors: Johan Hernblom, Kenneth Göransson
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Patent number: 7901769Abstract: A cementitious composite material wherein glass-coated steel rods are positioned in a cementitious matrix. The glass composition for coating the steel reinforcing rods includes between about 33-45 weight percent SiO2, 13.5-19.5 weight percent B2O3, 3.5-4.6 weight percent Al2O3, 4.0-13.5 weight percent K2O, 5.5-15.5 weight percent ZrO2, 8.6-15.9 weight percent Na2O, 4.6-5.1 weight percent CaO, 0.6-0.7 weight percent MnO2, 1.0-1.0 weight percent NiO, and 1.0-1.1 weight percent CoO. The glass composition is typically in compression on the rods at ambient temperatures, has a coefficient of thermal expansion of between about 12.5 and about 13.5, and has a softening temperature of between about 585 degrees Celsius and about 600 degrees Celsius.Type: GrantFiled: November 20, 2009Date of Patent: March 8, 2011Inventors: Richard K. Brow, Signo T. Reis, Mike Konigstein, Genda Chen
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Publication number: 20110052936Abstract: An Al—Zn—Si—Mg alloy coated strip that has Mg2Si particles in the coating microstructure is disclosed. The distribution of Mg2Si particles is such that the surface of the coating has only a small proportion of Mg2Si particles or is at least substantially free of any Mg2Si particles.Type: ApplicationFiled: March 13, 2009Publication date: March 3, 2011Applicant: BLUESCOPE STEEL LIMITEDInventors: Qiyang Liu, Wayne Renshaw, Joe Williams
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Patent number: 7892654Abstract: 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: GrantFiled: February 1, 2006Date of Patent: February 22, 2011Assignee: ThyssenKrupp Steel AGInventors: Harald Hofmann, Manfred Meurer, Bernd Schuhmacher, Slavcho Topalski
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Publication number: 20110014488Abstract: Fine-gained (average grain size 1 mm to 1,000 nm) metallic coatings optionally containing solid particulates dispersed therein are disclosed. The fine-grained metallic materials are significantly harder and stronger than conventional coatings of the same chemical composition due to Hall-Fetch strengthening and have low linear coefficients of thermal expansion (CTEs). The invention provides means for matching the CTE of the fine-grained metallic coating to the one of the substrate by adjusting the composition of the alloy and/or by varying the chemistry and volume fraction of particulates embedded in the coating. The fine-grained metallic coatings are particularly suited for strong and lightweight articles, precision molds, sporting goods, automotive parts and components exposed to thermal cycling. The low CTEs and the ability to match the CTEs of the fine-grained metallic coatings with the CTEs of the substrate minimize dimensional changes during thermal cycling and prevent premature failure.Type: ApplicationFiled: September 24, 2010Publication date: January 20, 2011Applicant: Integran Technologies, Inc.Inventors: Gino Palumbo, Jonathan McCrea, Klaus Tomantschger, Iain Brooks, Daehyun Jeong, Dave Limoges, Konstantinos Panagiotopoulos, Uwe Erb
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Patent number: 7867344Abstract: A method is proved for hot pressing hot rolled steel sheet, cold rolled steel sheet, Al-based plated steel sheet or Zn-based plated steel sheet, where the hot pressed sheet can exhibit a strength of at least about 1200 Mpa, and my be prevented from exhibiting hydrogen embrittlement. The steel sheet may include between about 0.05 to 0.5 wt % C, and/or it may be plated with an Al-based or Zn-based plating material. The steel sheet may be heating to a temperature greater than an Ac3 temperature and not more than about 1100° C. before pressing. An atmosphere can be provided during heating which contains not more than about 6 vol % of hydrogen and a dew point of not more than about 10° C. The exemplary methods may be used to form high strength parts which may be used, e.g., in automobiles.Type: GrantFiled: July 15, 2005Date of Patent: January 11, 2011Assignee: Nippon Steel CorporationInventors: Kazuhisa Kusumi, Jun Maki, Masayuki Abe, Masahiro Ohgami, Norihiro Fujita, Shinya Nakajima
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Publication number: 20100310903Abstract: The present invention provides an alloy film of Mn or its Fe—Mn is depositable on a metalized alumina ceramic (Al2O3-SiO3) substrate for hermetically sealed glass-metal fusion used for aircraft switch assemblies. The coefficient of thermal expansion of Fe—Mn alloys appear to be fairly low, nearer to that of glass. Fe—Mn alloy film is an alternative to Fe64—Ni36 alloy films (Invar) normally used for glass to glass fusion purposes. Fe—Mn alloy films is also depositable directly on bare Alumina (Al2O3) substrate with or without zincating pretreatment. Similarly bright, smooth coherent film of Mn—Au or Fe—Mn—Ni Au alloys is depositable from an aqueous solution of simple salt bath or on Cu substrate without the use of cyanide without bridging with zincate processes.Type: ApplicationFiled: January 19, 2010Publication date: December 9, 2010Inventor: Bassey J. Udofot
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Publication number: 20100310899Abstract: A method for making a housing comprises of providing a metal substrate; forming a base paint coating on the substrate; vacuum depositing a first metal coating on the base paint coating, the first metal coating being a chromium coating or a stainless steel coating; vacuum depositing a second metal coating on the first metal coating, the second metal coating being a commix metal coating containing chromium and stainless steel; and vacuum depositing a third metal coating on the second metal coating, the third metal coating being a stainless steel coating. A housing made by the above mentioned method is also described there.Type: ApplicationFiled: February 9, 2010Publication date: December 9, 2010Applicants: SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD., FIH (HONG KONG) LIMITEDInventors: ZONG-HUA HU, HAI-BO PAN, XU LI, YI-JUN HUANG, CHWAN-HWA CHIANG, FENG-YUEN DAI
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Patent number: 7842400Abstract: The present invention provides a surface treated steel sheet including a steel sheet; a plating layer containing at least one metal selected from the group consisting of zinc and aluminum on a surface of the steel sheet; and a film on the plating layer, the film containing at least one metal selected from the group consisting of Al, Mg, and Zn, a tetravalent vanadium compound, and a phosphoric acid group. This surface treated steel sheet exhibits excellent corrosion resistance and excellent surface appearance without containing hazardous substances, such as hexavalent chromium, in the film.Type: GrantFiled: July 28, 2004Date of Patent: November 30, 2010Assignee: JFE Steel CorporationInventors: Takafumi Yamaji, Reiko Yamaji, legal representative, Akira Matsuzaki, Kazuhisa Okai, Keiji Yoshida, Masaaki Yamashita, Yuichi Fukushima, Toshiyuki Okuma
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Publication number: 20100276001Abstract: A metal composite substrate includes a core made of a metal having higher strength than aluminum at elevated temperatures of at least 300° C. and an aluminum or aluminum alloy layer covering an entire surface of the core, and an anodized film is formed at a surface of the aluminum or aluminum alloy layer. The metal composite substrate having the anodized surface film can produce with high efficiency an insulating flexible support by a roll-to-roll process and has good flatness during the high-temperature heat treatment.Type: ApplicationFiled: April 29, 2010Publication date: November 4, 2010Applicant: FUJIFILM CORPORATIONInventors: Hirokazu SAWADA, Akio UESUGI
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Patent number: 7820304Abstract: A composite metal sheet (20) comprising a core layer (24) of drawable aluminum alloy such as 3003 or 3004 aluminum alloy roll bonded to a thinner layer (26) of 5456 aluminum alloy, the composite metal sheet including a layer (22) of stainless steel roll bonded to the layer of drawable aluminum (24) on the opposite side from the 5456 aluminum alloy layer (26). The composite metal sheet is useful in forming drawn cookware (2) such as fry pans, stock pots, and the like wherein the stainless steel layer (22) forms the cooking surface and the 5456 aluminum alloy layer (26) forms the exterior surface of the cookware.Type: GrantFiled: January 21, 2009Date of Patent: October 26, 2010Assignee: All-Clad Metalcrafters LLCInventor: William A. Groll
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Publication number: 20100255339Abstract: A technique for using an iron plating for coating an aluminum product that results in adequate durability. An aluminum piston (10) used as a plated aluminum product is covered by an iron-based composite plating layer (11). The iron-based composite plating layer (11) contains a carbon nanomaterial, which is applied to the aluminum-based base material using a iron-based composite plating bath formed by mixing a carbon nanomaterial into an iron plating bath.Type: ApplicationFiled: September 2, 2009Publication date: October 7, 2010Inventors: Tomoyuki Sato, Masashi Suganuma, Tomonori Karasawa, Shoji Kanai, Akira Matsumoto
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Patent number: 7800011Abstract: A MIG welded joint between aluminum and steel members is obtained by overlapping the aluminum member and the steel member each other and performing MIG welding using a filler wire made of a 4000 or 5000 series aluminum alloy on an end face of the overlapped aluminum member, wherein the aluminum member has a thickness P ranging from 0.5 to 2.0 mm, and the steel member has a thickness Q satisfying the following formula: 0.6?Q/P?0.8, whereby a penetration depth of the steel member is equal to or less than 5% of the thickness Q thereof.Type: GrantFiled: February 20, 2008Date of Patent: September 21, 2010Assignee: Sumitomo Light Metal Industries, Ltd.Inventors: Toshihiko Fukuda, Masaki Kumagai
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Publication number: 20100234117Abstract: A balanced driveshaft assembly that includes a driveshaft and a composite weight. The driveshaft has a shaft member and a pair of cardan joints that are coupled to the opposite ends of the shaft member. The shaft member is formed of a first material. The composite weight is fixed to the shaft member, and includes an insert and a body. The insert is formed of a second material that is denser than the first material and is encapsulated in the body. The body is formed of the first material. A composite weight and a method for forming a balanced driveshaft assembly are also provided.Type: ApplicationFiled: March 13, 2009Publication date: September 16, 2010Inventor: Michael C. Friedman
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Publication number: 20100221572Abstract: The invention relates to a steel part, the composition of the steel of which comprises, the contents being expressed by weight: 0.040%?C?0.100%; 0.80%?Mn?2.00%; Si?0.30%; S?0.005%; P?0.030%; 0.010% S?Al?0.070%; 0.015%?Nb?0.100%; 0.030% Ti?0.080%; N?0.009%; Cu?0.100%; Ni?0.100%; Cr?0.100%; Mo?0.100%; and Ca?0.006%, the balance of the composition consisting of iron and inevitable impurities resulting from the smelting, the microstructure of the steel consisting of at least 75% equiaxed ferrite, martensite in an amount not less than 5% but not exceeding 20%, and bainite in an amount not exceeding 10%.Type: ApplicationFiled: March 3, 2008Publication date: September 2, 2010Applicant: ARCELORMITTAL FRANCEInventors: Jean-Pierre Laurent, Thierry Malot
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Publication number: 20100221573Abstract: The invention relates to a hot-rolled steel sheet having a tensile strength greater than 800 MPa and an elongation at break greater than 10%, the composition of which comprises, the contents being expressed by weight: 0.050%?C?0.090%, 1%?Mn?2%, 0.015%?Al?0.050%, 0.1%?Si?0.3%, 0.10%?Mo?0.40%, S?0.010%, P?0.025%, 0.003%?N?0.009%, 0.12%?V?0.22%, Ti?0.005%, Nb?0.020% and, optionally, Cr?0.45%, the balance of the composition consisting of iron and inevitable impurities resulting from the smelting, the microstructure of the sheet or the part comprising, as a surface fraction, at least 80% upper bainite, the possible complement consisting of lower bainite, martensite and residual austenite, the sum of the martensite and residual austenite contents being less than 5%.Type: ApplicationFiled: July 9, 2008Publication date: September 2, 2010Applicant: ArcelorMittal FranceInventors: Pascal Drillet, Damien Ormston
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Publication number: 20100203357Abstract: Provided is an Al-plated steel sheet for motorcycle exhaust gas passageway members excellent in high-temperature strength and red scale resistance, which is produced by dipping a substrate steel sheet comprising, in terms of % by mass, at most 0.02% of C, at most 2% of Si, at most 2% of Mn, from 5 to 25% of Cr, from more than 0.1 to 1% of Nb, at most 0.3% of Ti, at most 0.02% of N, and optionally at least one of at most 0.6% of Ni, at most 0.2% of Al, at most 3% of Mo, at most 3% of Cu, at most 3% of W, at most 0.5% of V, at most 0.5% of Co and at most 0.01% of B, with a balance of Fe and inevitable impurities, in a hot-dip Al-base plating bath to thereby form a hot-dip plating layer having a mean thickness of from 3 to 20 ?m on the surface thereof.Type: ApplicationFiled: July 29, 2008Publication date: August 12, 2010Inventors: Yoshiaki Hori, Sadayuki Nakamura, Manabu Oku, Shin Ueno, Yasunori Hattori
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Patent number: 7758925Abstract: A method for preparing a protective layer (38) on a surface of the substrate (36) that requires a bonding temperature (BT) above a detrimental phase transformation temperature range (28) of the substrate, and then cooling the layer and substrate without cracking the layer or detrimentally transforming the substrate. The protective layer (38) and the substrate (36) are cooled from the bonding temperature (BT) to a temperature (46) above the detrimental phase transformation range (28) at a first cooling rate (30) slow enough to avoid cracking the protective layer. Next, the protective layer and the substrate are cooled to a temperature below the detrimental phase transformation range of the substrate at a second cooling rate (27) fast enough to pass the detrimental phase transformation range before a substantial transformation of the substrate into the detrimental phase can occur.Type: GrantFiled: September 21, 2007Date of Patent: July 20, 2010Assignee: Siemens Energy, Inc.Inventor: Brij B. Seth
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Publication number: 20100159274Abstract: A welded assembly includes a weld joint formed via a spin welding process. A disc receives a cylinder prior to spin welding, with the disc having a circumferential groove undercutting or defining an annular shelf. An interlocking feature retaining the cylinder and disc is formed between a flow pattern of the cylinder and the annular shelf upon cooling of molten flash in the groove underneath the annular shelf. Teeth can be formed integrally with the disc to provide a torsional interlocking feature between the disc and cylinder. A method for forming a weld joint between a plastic cylinder and disc includes providing the disc with a circumferential groove forming an annular shelf, and rotating the cylinder with respect to the disc under an axial force to thereby form an outflow of molten flash.Type: ApplicationFiled: March 3, 2010Publication date: June 24, 2010Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventor: Richard M. Kleber
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Publication number: 20100159273Abstract: Methods and apparatus for forming a multi-layered metal structure that includes an anodized surface are disclosed. According to one aspect, a housing arrangement can include a stainless steel layer and at least a first layer. The first layer can have a first bonding surface and a first exterior surface. The first bonding surface can be substantially bonded in direct contact with the stainless steel layer, and the first exterior surface can be an exterior of the housing arrangement. The first exterior surface is an anodized surface. In one embodiment, the first layer can be formed from an anodizable material such as aluminum, titanium, niobium, or tantalum.Type: ApplicationFiled: January 23, 2009Publication date: June 24, 2010Inventors: John Benjamin Filson, Kenneth J. Silverman, Masashige Tatebe
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Publication number: 20100119866Abstract: Methods for the low-temperature synthesis of an integrated, corrosion-resistant coating structure for metal substrates by means of multi-component pack cementation are provided. The synthesis of the integrated coating structures at low temperatures can avoid or minimize degradation of the mechanical properties of the substrates. The integrated coating structures can increase the lifetime of high temperature steels under severe steam environments and, therefore, provide a technological enabler for the high-temperature operation of steam power generation plants.Type: ApplicationFiled: November 10, 2008Publication date: May 13, 2010Applicant: WISCONSIN ALUMNI RESEARCH FOUNDATIONInventors: John Harry Perepezko, Ridwan Sakidja
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Publication number: 20100098969Abstract: The invention provides a structural member of different materials having no different-material-bonded part between aluminum alloy material and steel material to be assembled. The structural member of different materials comprised of steel and aluminum alloy includes a first structural member including steel, and a second structural member having a part including steel and a part including aluminum alloy, the part including steel and the part including aluminum alloy being bonded by different-material bonding. The first structural member and the second structural member are bonded together only by bonding of steels between the part including steel of the second structural member and the first structural member.Type: ApplicationFiled: March 26, 2008Publication date: April 22, 2010Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.Inventors: Toru Hashimura, Koji Fukumoto, Naoto Takahashi
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Patent number: 7700198Abstract: Disclosed are: a dissimilar material weld joint being formed by joining an iron type material and an aluminum type material and having not only a high strength but also an excellent ductility; and a weld joining method allowing such a joint to be stably produced. A dissimilar material weld joint 1 formed by joining an iron type material 2 and an aluminum type material 3, wherein: voids 4a are formed beforehand on the side of said iron type material 2 at a predetermined interval along a weld line 6; both said iron type and aluminum type materials are weld joined so that said voids 4a are filled with molten aluminum 7; and the minimum value of the ratio (L-Al)/(L-Fe) of the length (L-Al) of an aluminum type welding material 10 with which said voids 4a are filled to the length (L-Fe) of said iron type material 2 adjacent to said voids 4a filled with said aluminum type welding material 10 along said weld line 6 on the section containing said weld line 6 is in the range from 0.Type: GrantFiled: June 8, 2005Date of Patent: April 20, 2010Assignee: Kobe Steel, Ltd.Inventors: Mikako Takeda, Katsushi Matsumoto, Masao Kinefuchi, Tomokazu Nakagawa, Koji Fukumoto, Hiroyuki Takeda, Yasuo Murai
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Publication number: 20100086805Abstract: A substrate processing chamber component is capable of being exposed to an energized gas in a process chamber. The component has an underlying structure and first and second coating layers, the first coating layer comprising a first material having a first thermal expansion coefficient and a first surface having an average surface roughness of less than about 25 micrometers. The second coating layer is over the first surface of the first coating layer, the second coating layer comprising a second material having a second thermal expansion coefficient that differs by less than 5% from the first thermal expansion coefficient of the first material and a second surface having an average surface roughness of at least about 50 micrometers.Type: ApplicationFiled: August 24, 2009Publication date: April 8, 2010Applicant: Applied Materials, Inc.Inventors: Yixing Lin, Dajiang Xu, Clifford Stow
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Publication number: 20100075173Abstract: This invention describes a metallic multilayered material (10) for use as a heating plate or a cooling plate, in particular for food preparation, which is provided with at least one thick inner layer (12) made of good heat conducting material and and at least one thinner lower and upper cover layer (14, 16). The lower cover layer (14) has a plurality of holes (18) which are each filled at least partly with material of the inner layer (12). The upper cover layer (16) has no holes. The upper cover layer (16) of the multilayered material (10) serves as a work surface (e.g., as a grilling surface). Said multilayered material (10) guarantees, for example, a faster heat transfer to the open surface of the upper cover layer (16) during heating of the lower cover layer (14) by radiant heat or contact heat without the multilayered material (10) warping thereby.Type: ApplicationFiled: December 19, 2007Publication date: March 25, 2010Applicant: EISFINK MAX MAIER GMBH & CO. KGInventor: Jürgen Eberhard
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Publication number: 20100021760Abstract: A steel strip having a coating of an aluminium-zinc-silicon alloy on at least one surface of the strip is disclosed. The strip is characterised in that the aluminium-zinc-silicon alloy contains less than 1.2 wt. % silicon and also contains magnesium. A method of forming a coating of an aluminium-zinc-silicon alloy on a steel strip is also disclosed. The method includes moving steel strip upwardly through a coating pot containing a bath of an aluminium-zinc-silicon alloy and having an opening in a bottom wall of the pot and forming a coating of the alloy on the strip. The method is characterized by minimizing residence time of steel strip in contact with the aluminium-zinc-silicon alloy bath in the pot.Type: ApplicationFiled: August 30, 2007Publication date: January 28, 2010Applicant: BLUESCOPE STEEL LIMITEDInventors: Qiyang Liu, Joe Williams, Ross McDowall Smith
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Publication number: 20090291322Abstract: A joined body has a joint, which includes a first plate-shaped workpiece made of a first metal, and a second plate-shaped workpiece made of a second metal. The first plate-shaped workpiece, and the second plate-shaped workpiece are overlapped each other partially at least. The joint is made by means of friction stir joining by superimposing a rod-shaped body made of a third metal onto the overlapped first plate-shaped workpiece and second plate-shaped workpiece and then rotating it while pressing it onto the first plate-shaped workpiece. The joint further includes a coalesced section made of the first metal that coalesces on a surface of the second plate-shaped workpiece, a built-up section made of the third metal, and a composite section made of a mixture of the first metal and the third metal that integrates the coalesced section with the built-up section.Type: ApplicationFiled: May 18, 2009Publication date: November 26, 2009Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Goro Watanabe, Tetsuya Suganuma
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Publication number: 20090269611Abstract: A steel strip having a coating of a metal alloy on at least one surface of the strip is disclosed. The metal alloy contains aluminium, zinc, silicon, and magnesium as the major elements. The metal alloy also contains strontium and/or calcium and unavoidable impurities and optionally other elements that are present as deliberate alloying elements. The concentration of magnesium is at least 1 wt. % and the concentration of (i) strontium or (ii) calcium or (iii) strontium and calcium is greater than 50 ppm.Type: ApplicationFiled: August 29, 2007Publication date: October 29, 2009Applicant: BLUESCOPE STEEL LIMITEDInventors: Qiyang Liu, Wayne Renshaw, Joe Williams
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Patent number: 7601434Abstract: The invention relates to a plain bearing composite material comprising a steel carrier layer and a bearing coating which is applied to the carrier layer in such a way that it cannot be removed and consists of lead-free aluminium bearing alloy consisting of between 4.4 and 6 wt. % of zinc, between 2.5 and 6 wt % of bismuth, between 1 and 2 wt. % of silicon, between 0.8 and 1.2 wt. % of copper and between 0.2 and 0.8 wt. % of magnesium, optionally a maximum of 0.2 wt. % each of titanium, nickel, manganese, and tin, optionally a maximum of 0.6 wt. % of iron, and also optionally respectively a maximum of 0.1 wt. % of impurity related additives, the total quantity thereof not amounting to more than 1 wt. % of the sum of the constituents. The aluminium bearing alloy forms an aluminium solid solution supersaturated with zinc, said zinc being finely distributed by solution annealing and subsequent chilling.Type: GrantFiled: July 17, 2004Date of Patent: October 13, 2009Assignee: KS Gleitlager GmbHInventors: Werner Schubert, Klaus Deicke, Thomas Steffens, Bernd Mueller
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Publication number: 20090220815Abstract: Plate consisting of a steel substrate (1) and a precoat (2) consisting of a layer of intermetallic alloy (3) in contact with said substrate, topped by a layer of metal alloy (4), characterized in that, on at least one precoated face of said plate, an area (6) situated at the periphery of said plate has said metal alloy layer removed.Type: ApplicationFiled: March 29, 2007Publication date: September 3, 2009Applicant: ARCELORMITTAL FRANCEInventors: Jean-Francois Canourgues, Aurelien Pic, Pascal Verrier, Rene Vierstraete, Wolfram Ehling, Bernd Thommes
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Patent number: 7582361Abstract: A class of lightweight structural members, characterized by lighter weight and greater resistance to buckling under axial compressive loading, as compared to conventional structural members, is described. The lightweight structural members typically comprise a thin tubular member filled with a metallic foam material. The foam material preferably comprises particulate matter comprised of agglomerated fly ash material, and, preferably, gaseous material in pores within the foam material. In an alternate configuration, the lightweight structural member comprises two tubular members, one nested inside the other, wherein the annular volume between the tubular members is filled with metallic foam material. A method for manufacturing the structural members is also described.Type: GrantFiled: June 21, 2004Date of Patent: September 1, 2009Inventors: Robert M. Purgert, Jerzy Sobczak, Lawrence C. Boyd, Jr., Nipendra P. Singh, Bruce P. Bardes
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Patent number: 7575815Abstract: Disclosed herein are aluminide coatings. In one embodiment coatings are used as a barrier coating to protect a metal substrate, such as a steel or a superalloy, from various chemical environments, including oxidizing, reducing and/or sulfidizing conditions. In addition, the disclosed coatings can be used, for example, to prevent the substantial diffusion of various elements, such as chromium, at elevated service temperatures. Related methods for preparing protective coatings on metal substrates are also described.Type: GrantFiled: January 24, 2006Date of Patent: August 18, 2009Assignee: Battelle Memorial InstituteInventors: Charles H. Henager, Jr., Yongsoon Shin, William D. Samuels
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Publication number: 20090202859Abstract: The present invention provides a composite coated zinc-containing plated steel material different from the plated steel materials treated by conventional chromate replacement technologies and superior in all of corrosion resistance, blackening resistance, coating adhesion, and alkali resistance. The composite coated zinc-containing plated steel material of the present invention is characterized by having a composite coating formed by coating and drying on the surface of a plated steel material a treatment solution containing a basic zirconium compound, vanadyl (VO2+)-containing compound, phosphoric acid compound, cobalt compound, organic acid, and water and having a pH7 to 14, the composite coating containing, with respect to the Zr element as 100 mass %, V in an amount of 10 to 45 mass %, P in 5 to 100 mass %, Co in 0.1 to 20 mass %, and an organic acid in 10 to 90 mass %.Type: ApplicationFiled: April 20, 2007Publication date: August 13, 2009Inventors: Yoshio Kimata, Atsushi Morishita, Akira Takahashi, Toshikazu Amemiya, Takayuki Kuwagaki, Hidetoshi Shindo, Ikuo Kikuchi
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Patent number: 7566504Abstract: An iron species preform for forming a metal matrix composite is inserted in an aluminum species alloy member to be cast-in. The aluminum species alloy member has bearing faces having a section in a semicircular arc shape. An inner peripheral face of the iron species preform is provided with a plurality of inner side grooves. The inner side groove includes flat portions and groove bottom portions continuous to two end edges continuous to the inner peripheral face and opposed to each other. In a cast-in step, shrinkage in a peripheral direction accompanied by solidifying a melted aluminum species alloy is uniformly received by the respective inner side grooves, movement in the peripheral direction is restrained, a clearance at an interface can be prevented from being brought about, so that a cast-in performance is excellent, and stable bonding strength and close contact of the interface can be ensured.Type: GrantFiled: September 28, 2006Date of Patent: July 28, 2009Assignees: Fuji Jukogyo Kabushiki Kaisha, Nippon Piston Ring, Co. LtdInventors: Teruyuki Oda, Hiroshi Takiguchi
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Publication number: 20090186241Abstract: A composite metal sheet (20) comprising a core layer (24) of drawable aluminum alloy such as 3003 or 3004 aluminum alloy roll bonded to a thinner layer (26) of 5456 aluminum alloy, the composite metal sheet including a layer (22) of stainless steel roll bonded to the layer of drawable aluminum (24) on the opposite side from the 5456 aluminum alloy layer (26). The composite metal sheet is useful in forming drawn cookware (2) such as fry pans, stock pots, and the like wherein the stainless steel layer (22) forms the cooking surface and the 5456 aluminum alloy layer (26) forms the exterior surface of the cookware.Type: ApplicationFiled: January 21, 2009Publication date: July 23, 2009Applicant: ALL-CLAD METALCRAFTERS LLCInventor: William A. Groll
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Patent number: 7560171Abstract: A composite material member is made of a light metal, and strength and durability in a joined part between constituent materials of the composite material member are improved, and production cost is decreased. The composite material member of the present invention contains a main material composed of a light metal or a light metal alloy which can be molded by casting; and a secondary material composed of a metallic material different from the main material or an inorganic material, the secondary material being joined to the main material by integrally casting with the main material, wherein a porous material is arranged on a part of a boundary area or entire boundary area between the main material and the secondary material.Type: GrantFiled: December 2, 2003Date of Patent: July 14, 2009Assignee: NHK Spring Co., Ltd.Inventors: Toru Shiraishi, Akihiro Katsuya
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Publication number: 20090165341Abstract: A soleplate (101) comprises a metallic layer (102), a non-ferromagnetic layer (104) and a ferromagnetic layer (103) sandwiched between the metallic layer (102) and non-ferromagnetic layer (104). The soleplate (101) is used in an induction heating-based cordless iron (100). The electromagnetic field from an induction coil (109) located in a stand (108), where the iron rests and gets charged, can pass beyond the non-ferromagnetic layer (104) and heat the ferromagnetic layer (103) efficiently. The non-ferromagnetic layer (104) that is forming an ironing plate ensures a uniform heat transfer to the metallic layer (102) for good steaming performance for effective cordless ironing.Type: ApplicationFiled: May 16, 2007Publication date: July 2, 2009Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Chandra Mohan Janakiraman, Yong Jiang, Job Van Der Burg
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Publication number: 20090142616Abstract: A hot-dip Zn—Al alloy-plated steel material ensuring high corrosion resistance and excellent bending workability of the plating layer, and a production method thereof are provided, that is, a hot-dip Zn—Al alloy-plated steel material with excellent bending workability, having a plating layer comprising, in terms of mass %, from 25 to 85% of Al, from 0.05 to 5% of one or both of Cr and Mn, and Si in an amount of 0.5 to 10% of the Al content, with the balance being Zn and unavoidable impurities, wherein the average spangle size on the plating surface is 0.5 mm or more; and a production method thereof.Type: ApplicationFiled: September 1, 2005Publication date: June 4, 2009Inventor: Shiro Fujii
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Patent number: 7527876Abstract: A surface-treated steel sheet is disclosed, including a zinc based plated steel sheet having thereon a surface-treated film containing titanium, nickel, aluminum and fluorine and having a film thickness of from 0.05 to 1.0 ?m, the surface-treated film having a titanium deposition amount of from 0.01 to 0.5 g/m2 and containing from 0.01 to 5 parts by mass of nickel, from 0.1 to 25 parts by mass of aluminum and from 1 to 500 parts by mass of fluorine relative to 100 parts by mass of titanium. This surface-treated steel sheet does not contain hexavalent chromium in the film thereof at all and has excellent heat discoloration resistance, corrosion resistance and resistance to blackening.Type: GrantFiled: September 6, 2007Date of Patent: May 5, 2009Assignees: JFE Steel Corporation, Kansai Paint Co., Ltd.Inventors: Nobue Fujibayashi, Akira Matsuzaki, Satoru Ando, Syuji Nomura, Takahiro Kubota, Yoshikazu Morohoshi, Takashi Nakano, Takashi Okubo, Jun Akui
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Patent number: 7521129Abstract: Disclosed is a steel sheet for dissimilar materials weldbonding to an aluminum material, the steel sheet containing, in mass, C: 0.02 to 0.3%, Si: 0.2 to 5.0%, Mn: 0.2 to 2.0%, and Al: 0.002 to 0.1%, further one or more of Ti: 0.005 to 0.10%, Nb: 0.005 to 0.10%, Cr: 0.05 to 1.0%, and Mo: 0.01 to 1.0%, and the balance consisting of Fe and unavoidable impurities. In the steel sheet, (i) the proportion of the oxide containing Mn and Si by 1 at.Type: GrantFiled: May 19, 2006Date of Patent: April 21, 2009Assignee: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Mikako Takeda, Wataru Urushihara, Katsushi Matsumoto, Jun Katoh
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Publication number: 20090087681Abstract: An impact resistant composite member is for at least one of armor plate and an impact resistant structure. The member comprises a body in plate form and a reinforcement structure located within the body. The body includes a metal alloy having a fine grain size of about 5 microns or less.Type: ApplicationFiled: June 13, 2008Publication date: April 2, 2009Inventors: Raymond F. Decker, Sanjay Kulkarni, Joseph R. Pickens
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Publication number: 20090053555Abstract: The present invention provides a high corrosion resistance hot dip galvannealed steel material comprised of a Zn-based hot dip plated steel material achieving both a higher corrosion resistance of the plated layer itself by the added elements and sacrificial protection of iron metal by the plated layer or workability free of degradation caused of formation of intermetallic compounds by added elements, that is, a high corrosion resistance hot dip Zn plated steel material characterized in that an alloy plated layer containing Zn: 35 mass % or more, preferably 40 mass % or more, contains a non-equilibrium phase having a heat capacity by differential scanning calorimetry of 1 J/g or more. Furthermore, 5% or more, preferably 50% or more in terms of vol % is an amorphous phase. The alloy layer may contain, by mass %, Mg: 1 to 60% and Al: 0.07 to 59%, may further contain one or more elements selected from Cr, Mn, Fe, Co, Ni, and Cu in a total of 0.1 to 10%, and may in addition contain one or more elements of 0.Type: ApplicationFiled: March 14, 2007Publication date: February 26, 2009Inventors: Koichi Nose, Kohei Tokuda, Yuichi Sato, Makoto Nakazawa
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Patent number: 7482065Abstract: A multi-layered metallic material comprising a metallic glass layer comprising an alloy layer that has a hardness of at least about 9.2 GPa and a metal layer having a hardness of less than about 9.2 GPa. In application form, an armor structure is provided that is suitable for protecting against ballistic projectiles.Type: GrantFiled: May 24, 2004Date of Patent: January 27, 2009Assignee: The Nanosteel Company, Inc.Inventor: Daniel James Branagan
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Publication number: 20090017328Abstract: There are provided a flux cored wire for joining dissimilar materials with each other, capable of enhancing a bonding strength upon joining an aluminum-base material with a steel-base material, and excellent in bonding efficiency, a method for joining the dissimilar materials with each other, and a bonded joint obtained by the method. In particular, there is provided a method for joining dissimilar materials with each other, in the case of melt weld-bonding of high-strength dissimilar materials with each other, that is, the high-strength steel member with the high-strength 6000 series aluminum alloy member and in the case of the steel member being a galvanized steel member. In one mode, use is made of a flux cored wire wherein the interior of an aluminum alloy envelope is filled up with a flux, the flux has fluoride composition containing a given amount of AlF3 without containing chloride, and the aluminum alloy of the envelope contains Si in a range of 1 to 13 mass %.Type: ApplicationFiled: February 6, 2007Publication date: January 15, 2009Applicant: Kabkushiki Kaisha Kobe Seiko Sho (Kobe Stell, Ltd.Inventors: Jun Katoh, Mikako Takeda, Seiji Sasabe, Katsushi Matsumoto, Hidekazu Ido, Tsuyoshi Matsumoto
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Patent number: 7473864Abstract: A joined part of an aluminum-coated steel sheet and an aluminum sheet is composed of an intermetallic compound layer which exists in a region in which a part of a coated layer exists before the joining and an aluminum melted and solidified part which also exists on the side of the aluminum sheet to enclose the intermetallic compound layer. The atoms existing on the surface of the aluminum melted and solidified part are intermetallic-bonded with atoms which exist on the surface of the steel sheet except in the region in which the intermetallic compound layer exists seen in the plan view. Further, the area of the intermetallic compound layer is limited to 60% or less of the total area of the joined part at the interface between the aluminum-coated steel sheet and the aluminum sheet. Thus, the area of the aluminum melted and solidified part exceeds 40% of the total area of the joined part. The strong joining having a high fracture energy can be provided at a high efficiency.Type: GrantFiled: May 19, 2004Date of Patent: January 6, 2009Assignees: Kobe Steel, Ltd., Nisshin Steel Co., Ltd.Inventors: Tetsu Iwase, Seiji Sasabe, Mitsuo Hino, Kensuke Tsubota, Fumihiro Sato, Shunichi Hashimoto, Jun Katoh, Hiroyuki Takeda