Over 10 Percent Nickel Containing Patents (Class 420/94)
  • Patent number: 9310772
    Abstract: A metal structure includes, by mass %, Fe: 10% to 30%; S: 0.005% to 0.2%; and the balance consisting of Ni and unavoidable impurities, in which a maximum grain size of the metal structure is 500 nm or less. The metal structure preferably has one or more of a stress relaxation rate of 10% or less, a lattice constant of 3.535 ? to 3.56 ?, a yield stress of 1500 MPa or more, a Young's modulus of 150 GPa or more and a Vickers hardness of Hv 580 or more.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: April 12, 2016
    Assignee: SEIKO INSTRUMENTS INC.
    Inventors: Miei Konishi, Matsuo Kishi, Takashi Niwa
  • Publication number: 20140326849
    Abstract: A mechanical structure is provided with a crystalline superelastic alloy that is characterized by an average grain size and that exhibits a martensitic phase transformation resulting from a mechanical stress input greater than a characteristic first critical stress. A configuration of the superelastic alloy is provided with a geometric structural feature of the alloy that has an extent that is no greater than about 200 micrometers and that is no larger than the average grain size of the alloy. This geometric feature undergoes the martensitic transformation without intergranular fracture of the geometric feature.
    Type: Application
    Filed: September 13, 2012
    Publication date: November 6, 2014
    Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Christopher A. Schuh, Jose M. San Juan, Ying Chen
  • Publication number: 20140283741
    Abstract: The present application discloses a metal matrix composite for evaporation mask, comprising matrix and reinforcing phase dispersed in the matrix, wherein the matrix is iron-nickel alloy, the reinforcing phase is non-metallic particles, and the volume ratio of the non-metallic particles in the matrix is in the range from 20 vol % to 50 vol %. The present application also provides an evaporation mask made from the metal matrix composite and a making method thereof. The metal matrix composite according to the present application has a decreased density and an elevated elasticity modulus, and thereby is useful to prevent the evaporation mask from drooping due to gravity. Further, the method for making the evaporation mask according to the present application is beneficial to improve the overall performance of the evaporation mask, save raw materials and reduce the cost.
    Type: Application
    Filed: August 2, 2013
    Publication date: September 25, 2014
    Applicant: EverDisplay Optronics (Shanghai) Limited
    Inventors: Qiguo Zhang, Chengpei Huang, Chuwan Huang
  • Publication number: 20140212324
    Abstract: Provided by the present invention are a fine crystallite high-function metal alloy member, a method for manufacturing the same, and a business development method thereof, in which a crystallite of a metal alloy including a high-purity metal alloy whose crystal lattice is a face-centered cubic lattice, a body-centered cubic lattice, or a close-packed hexagonal lattice is made fine with the size in the level of nanometers (10?9 m to 10?6 m) and micrometers (10?6 m to 10?3 m), and the form thereof is adjusted, thereby remedying drawbacks thereof and enhancing various characteristics without losing superior characteristics owned by the alloy.
    Type: Application
    Filed: April 10, 2012
    Publication date: July 31, 2014
    Applicant: THREE-O CO., LTD.
    Inventor: Kazuo Ogasa
  • Publication number: 20130032137
    Abstract: The present invention regards a metal composition suitable for originating a joint (22) by means of welding with a borosilicate glass for a solar collector (10). The composition, expressed in weight percentage, comprises the following alloy elements Table 1 and it is such that 45.5?(Ni+Co)?46.5, and that (Ti+Ta+Zr)?4×C, the remaining part being made up of iron, apart from the inevitable impurities. The invention also regards: a metal ring (20) made of the metal composition described above and suitable for originating a metal-glass joint by means of welding; the metal-glass joint thus obtained; and the tubular solar collector (10) thus obtained.
    Type: Application
    Filed: April 11, 2011
    Publication date: February 7, 2013
    Applicant: ARCHIMEDE SOLAR ENERGY SRL
    Inventors: Federico Ruffini, Claudio Raggi, Stefano Fortunati, Learco Cagiola, Antonio De Luca
  • Patent number: 8328961
    Abstract: The invention concerns an iron-nickel alloy strip comprising the following expressed in wt. %: 32?Co+Ni?45%, 0?Co?6.5%, 0?Cr=6.5%, Cu?3%, Si?0.5%, Mn?0.75%, the rest being made up of iron and unavoidable impurities resulting from production, whereof the microstructure has a recrystallized volume fraction ranging from 3 to 97%, whereof the thickness is less than 0.5 mm. The invention also concerns the use thereof in the manufacture of support grids for integrated circuits.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: December 11, 2012
    Assignee: Imphy Alloys
    Inventors: Georges Martinez, Pierre-Louis Reydet, Gilles Bresson, Gilles Coccoz, Jean-Luc Spire, Jerome Giusti
  • Publication number: 20120160363
    Abstract: Provided are high manganese containing ferrous based components and their use in oil, gas and/or petrochemical applications. In one form, the components include 5 to 40 wt % manganese, 0.01 to 3.0 wt % carbon and the balance iron. The components may optionally include one or more alloying elements chosen from chromium, nickel, cobalt, molybdenum, niobium, copper, titanium, vanadium, nitrogen, boron and combinations thereof.
    Type: Application
    Filed: December 21, 2011
    Publication date: June 28, 2012
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Hyun Woo Jin, Raghavan Ayer, Douglas Paul Fairchild, Mario L. Macia
  • Patent number: 8002911
    Abstract: Metallic dental prostheses made of bulk-solidifying amorphous alloys wherein the dental prosthesis has an elastic strain limit of around 1.2% or more and methods of making such metallic dental prostheses are provided.
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: August 23, 2011
    Assignee: Crucible Intellectual Property, LLC
    Inventors: Atakan Peker, Choongnyun Paul Kim, Tranquoc ThebaoNguyen
  • Publication number: 20100284849
    Abstract: An austenitic cast iron according to the present invention has Ni: from 7 to 15% by mass, and is characterized in that it comprises a base structure in which an austenite phase makes a major phase even in ordinary-temperature region by adjusting the respective compositions of Cr, Ni and Cu, excepting C and Si, so as to fall within predetermined ranges. In accordance with the present invention, it is possible to obtain an austenitic cast iron, which is excellent in terms of oxidation resistance and the like, inexpensively, while reducing the content of expensive Ni.
    Type: Application
    Filed: August 29, 2008
    Publication date: November 11, 2010
    Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, MIE PREFECTURE
    Inventors: Tomohei Sugiyama, Manabu Ishikawa, Hiroyuki Isomura, Mamoru Kojima, Naoki Yamamoto, Kyoichi Kinoshita, Takao Fujikawa
  • Publication number: 20100253006
    Abstract: A steel product having a composition which contains by mass C: 0.01 to 1.9%, Si: 0.01 to 1.9%, Mn: 5.0 to 24.0% with balance consisting of Fe and unavoidable impurities and a steel product described above which further contains Cr: 18.0% or below and/or Ni: 12.0% or below in addition to the above essential elements. The above steel products may each further contain Al: 1% or below and/or N: 0.3% or below and the above steel products may each further contain one or more elements selected from among Nb, Ti, Zr, Mo and Cu in a total amount of 4.0% or below. The steel products can sufficiently follow the thermal expansion of a cylinder made of an aluminum alloy and thus enables the production of a piston ring which is suitable for use as a piston ring to slide on the inner face of a cylinder bore made of an aluminum alloy in an internal combustion engine and which can retain excellent sealing properties.
    Type: Application
    Filed: November 28, 2008
    Publication date: October 7, 2010
    Applicant: NIPPON PISTON RING CO., LTD
    Inventors: Yoshiki Ishikawa, Seisuke Takaki, Motonobu Onoda
  • Publication number: 20100140439
    Abstract: A mechanical structure is provided with a crystalline superelastic alloy that is characterized by an average grain size and that is characterized by a martensitic phase transformation resulting from a mechanical stress input greater than a characteristic first critical stress. A configuration of the superelastic alloy is provided with a geometric structural feature of the alloy that has an extent that is no greater than about 200 micrometers and that is no larger than the average grain size of the alloy. This geometric feature is configured to accept a mechanical stress input.
    Type: Application
    Filed: July 8, 2009
    Publication date: June 10, 2010
    Applicant: Massachusetts Institute of Technology
    Inventors: Christopher A. Schuh, Jose M. San Juan, Ying Chen
  • Publication number: 20090148336
    Abstract: The present invention relates to a compound body comprising cemented carbide and steel with a carbon content corresponding to a carbon equivalent Ceq=wt-% C+0.3(wt-% Si+wt-% P) of from about 0.1 to about 0.85 wt-%. The body is particularly useful for earth moving tools e.g. dredge cutter heads.
    Type: Application
    Filed: November 7, 2008
    Publication date: June 11, 2009
    Applicant: Sandvik Intellectual Property AB
    Inventors: Stefan Ederyd, Per Quarfordt
  • Publication number: 20090148334
    Abstract: A metal matrix composite material of a low coefficient of thermal expansion (CTE) alloy strengthened by nanophase dispersed particles. The low CTE alloy can be an iron-nickel alloy or an iron-nickel-cobalt alloy. The nanophase particles can be a refractory oxide, carbide or nitride. Also disclosed is a method of making a metal matrix composite material in which the nanophase particles are combined with the low CTE alloy to form a metal matrix composite material having the nanophase particles dispersed therein.
    Type: Application
    Filed: July 8, 2008
    Publication date: June 11, 2009
    Applicants: Space Administration
    Inventor: Timothy A. Stephenson
  • Patent number: 7488392
    Abstract: A stainless steel comprising at least 20 weight % of chromium and at least 1.0 weight % of manganese is adapted to support an overcoating having a thickness from 1 to 10 microns of a spinel of the formula MnxCr3?xO4 wherein x is from 0.5 to 2. Preferably the overcoating is on chromia and has stability against chemical reaction at temperatures at least 25° C. higher than the uncoated chromia.
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: February 10, 2009
    Assignee: Nova Chemicals (International) S.A.
    Inventors: Leslie Wilfred Benum, Michael C. Oballa, Sabino Steven Anthony Petrone
  • Patent number: 7431812
    Abstract: An anode for the electrowinning of aluminium by the electrolysis of alumina in a molten fluoride electrolyte has an electrochemically active integral outside oxide layer obtainable by surface oxidation of a metal alloy which consists of 20 to 60 weight % nickel; 5 to 15 weight % copper; 1.5 to 5 weight % aluminium; 0 to 2 weight % in total of one or more rare earth metals, in particular yttrium; 0 to 2 weight % of further elements, in particular manganese, silicon and carbon; and the balance being iron. The metal alloy of the anode has a copper/nickel weight ratio in the range of 0.1 to 0.5, preferably 0.2 to 0.3.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: October 7, 2008
    Assignee: Moitech Invent S.A.
    Inventors: Thinh T. Nguyen, Vittorio De Nora
  • Patent number: 7267794
    Abstract: Density-enhanced compositions that are comprised of at least iron and tungsten, and articles, including firearm projectiles, formed therefrom. The articles have a density that exceeds that of steel, and which may be less than, equal to, or greater than that of lead. In some embodiments, iron is the majority component and tungsten is a minority component, with steel optionally forming a portion of the iron-containing component. In some embodiments, the article includes at least one additional minority component, such as one or more of nickel, manganese, tin, carbon, steel, chromium, molybdenum, silicon, aluminum, zinc, copper, potassium, sulfur, vanadium, and/or titanium. In some embodiments, the article is cast or otherwise formed from molten material, and in some embodiments the article is formed via powder metallurgy. In some embodiments, the article is firearm shot, a firearm slug, or a bullet.
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: September 11, 2007
    Inventor: Darryl D. Amick
  • Patent number: 7226515
    Abstract: A Fe—Ni based permalloy comprises Ni: 30–85 wt %, C: not more than 0.015 wt %, Si: not more than 1.0 wt %, Mn: not more than 1.0 wt %, P: not more than 0.01 wt %, S: not more than 0.005 wt %, O: not more than 0.0060 wt %, Al: not more than 0.02 wt % and, if necessary, not more than 15 wt % of at least one selected from the group consisting of Mo, Cu, Co and Nb within a range of not more than 20 wt % in total.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: June 5, 2007
    Assignee: Hippon Yakin Kogyo Co., Ltd.
    Inventors: Tatsuya Itoh, Tsutomu Omori
  • Patent number: 7195680
    Abstract: The invention relates to a soft magnetic alloy with the following composition in wt. %: 28%?Ni?34%, 0%?Co?4%, 0%?Cu?4%, 1%?Cr, 0%?Mo?8%, 0%?Nb?1%, 0%?Mn?2%, 0%?V?5%, 0%?W?5%, 0%?Si?4%, 0%?Al?4%, 0%?C?0.4%, optionally one or several elements selected from magnesium and calcium the content of which is such as to remain below 0.1%, the rest being iron and impurities from production. The chemical composition furthermore satisfies the following relationships: 180.5?6×Ni2.5×(Cr+Mo+V+W+Si+Al)+4×(Co+Cu)?197.5 et Co+Cu?4%. The invention relates to the use thereof for production of a stator for use in a motor for clock-making.
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: March 27, 2007
    Assignee: Imphy Alloys
    Inventors: Thierry Waeckerle, Hervë Fraisse, Bruno Boulogne
  • Patent number: 7014721
    Abstract: The invention is a Fe—Ni alloy material comprising Ni: 26–37 wt %, Si: 0.001–0.2 wt %, Mn: 0.01–0.6 wt %, Al: 0.0001–0.003 wt %, Mg: not more than 0.001 wt %, Ca: not more than 0.001 wt % and the reminder being Fe and inevitable impurities, and containing not more than 0.02 wt % of one or more MnO—SiO2—Al2O3 inclusion, SiO2 inclusion and MgO—Al2O3 inclusion insoluble in an aqueous solution of ferric chloride, and is to provide electronic materials for shadow mask and the like having a good hole shape in an etching treatment and a high quality.
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: March 21, 2006
    Assignee: Nippon Yakin Kogyo Co., Ltd.
    Inventors: Natsuki Shiga, Hidekazu Todoroki
  • Patent number: 6890480
    Abstract: Medium- and high-density articles are formed from melting and casting alloys containing tungsten, iron, nickel and optionally manganese and/or steel. In some embodiments, the articles have densities in the range of 8-10.5 g/cm3, and in other embodiments, the articles have densities in the range of 10.5-15 g/cm3. In some embodiments, the articles are ferromagnetic, and in others the articles are not ferromagnetic. In some embodiments, tungsten forms the largest weight percent of the alloy, and in other embodiments the alloy contains no more than 50 wt % tungsten. In some embodiments, the articles are shell shot.
    Type: Grant
    Filed: February 3, 2003
    Date of Patent: May 10, 2005
    Inventor: Darryl D. Amick
  • Publication number: 20040238076
    Abstract: There is provided a Fe—Ni based alloy for shadow mask having high corrosion resistance, high rigidity and low thermal expansion and hardly generating rust even if being exposed in air in the course of circulation and transportation after the bright annealing as a middle step of the starting material production and a shadow mask material. A Fe—Ni based alloy for a shadow mask having an excellent corrosion resistance comprises C≦0.01 wt %, Si: 0.01-0.1 wt %, Mn: 0.01-0.1 wt %, Ni: 35-37 wt %, Cr≦0.1 wt %, Nb: 0.01-1.0 wt %, S≦0.0020 wt %, Al≦0.005 wt % and the balance being Fe and inevitable impurity, and a shadow mask material is comprised of the alloy having a proof strength at 0.2% of not less than 300 N/mm2 and a thermal expansion coefficient of not more than 1.0×10−6/° C.
    Type: Application
    Filed: March 12, 2004
    Publication date: December 2, 2004
    Inventors: Toru Nishi, Tsutomu Omori, Yutaka Kobayashi
  • Patent number: 6767414
    Abstract: There is provided inexpensive maraging steel having high fatigue strength and maraging steel strip formed by use of the same. The maraging steel having high fatigue strength, consisting essentially, by mass, of not more than 0.008% C, from 0 inclusive but not more than 2.0% Si, from 0 inclusive but not more than 3.0% Mn, not more than 0.010% P, not more than 0.005% S, 12 to 22% Ni, 3.0 to 7.0% Mo, less than 7.0% Co, not more than 0.1% Ti, not more than 2.0% Al, less than 0.005% N, not more than 0.0033% O (oxygen), and the balance substantially Fe, a total amount of (3Si+1.8Mn+Co/3+Mo+2.6Ti+4Al) being in a range of 8.0 to 13.0%.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: July 27, 2004
    Assignee: Hitachi Metals, Ltd.
    Inventors: Toshihiro Uehara, Etsuo Fujita
  • Publication number: 20040037732
    Abstract: The inv ntion is a Fe—Ni alloy mat rial comprising Ni: 26-37 wt %, Si: 0.001-0.2 wt %, Mn: 0.01-0.6 wt %, Al: 0.0001-0.003 wt %, Mg: not more than 0.001 wt %, Ca: not more than 0.001 wt % and the reminder being Fe and inevitable impurities, and containing not more than 0.02 wt % of one or more MnO—SiO2—Al2O3 inclusion, SiO2 inclusion and MgO—Al2O3 inclusion insoluble in an aqueous solution of ferric chloride, and is to provide electronic materials for shadow mask and the like having a good hole shape in an etching treatment and a high quality.
    Type: Application
    Filed: April 23, 2003
    Publication date: February 26, 2004
    Inventors: Natsuki Shiga, Hidekazu Todoroki
  • Patent number: 6656419
    Abstract: A Fe—Ni based permalloy comprises Ni: 30-85 wt %, C: not more than 0.015 wt %, Si: not more than 1.0 wt %, Mn: not more than 1.0 wt %, P: not more than 0.01 wt %, S: not more than 0.005 wt %, O: not more than 0.0060 wt %, Al: not more than 0.02 wt % and, if necessary, not more than 15 wt % of at least one selected from the group consisting of Mo, Cu, Co and Nb within a range of not more than 20 wt % in total.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: December 2, 2003
    Assignee: Nippon Yakin Kogyo Co., Ltd.
    Inventors: Tatsuya Itoh, Tsutomu Omori
  • Patent number: 6652991
    Abstract: The addition of small amounts of CeO2 and Cr to intermetallic compositions of NiAl and FeAl improves ductility, thermal stability, thermal shock resistance, and resistance to oxidation, sulphidization and carburization.
    Type: Grant
    Filed: October 9, 2002
    Date of Patent: November 25, 2003
    Assignee: The Governors of the University of Alberta
    Inventors: You Wang, Weixing Chen
  • Patent number: 6632298
    Abstract: The present invention aims at providing a sophisticated segregation reducing technique which a conventional technique cannot achieve by finding the relationship between the casting structure and the segregation of components at the time of solidification and the heat treatment conditions. That is, the present invention aims at providing material for shadow masks which exhibits excellent quality with respect to streaks. A material for a shadow mask of the present invention is formed of a casting slab for preparing the shadow mask which comprises an Ni—Fe alloy containing 30 to 45% of Ni. The casting slab has a cast structure comprising a columnar crystal and/or a chill crystal in an amount of 99% or more. In particular, it is preferred that the casting slab contains no equiaxed crystal.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: October 14, 2003
    Assignees: Toyo Kohan Co., Ltd., Nippon Yakin Kogyo Co., Ltd.
    Inventors: Syun-ichi Morita, Taizo Sato, Jun Agari, Tsutomu Omori, Tatsuya Itoh, Shigeru Hirata
  • Publication number: 20030164211
    Abstract: Strip made of an austenitic Fe—Ni alloy or Fe—Ni—Co alloy or Fe—Ni—Co—Cu alloy, the chemical composition of the alloy of which comprises, in % by weight: 30%≦Ni≦70%; 0%≦Cu+2×Co≦20%; 0%≦Mn+Cr<5%; 0%≦W+2×Mo≦2%; 0%≦Ti+V+Nb+Al≦1%; 0.0005%≦B≦0.007%; the balance being iron and impurities such as C, S, P, O and N; the chemical composition being such that Fe+Ni+Cu+Co≧95%. The alloy has a cubic texture with a cubic texture index Dc≧7. Process for manufacturing a strip. Process for manufacturing a part by mechanical cutting.
    Type: Application
    Filed: April 7, 2003
    Publication date: September 4, 2003
    Inventors: Lucien Coutu, Vincent Durieux, Jerome Giusti
  • Patent number: 6600259
    Abstract: This invention provides, as a means of securing magnetic shield properties for a semi-tension mask and precluding color irregularity or mislanding on the phosphor due to beam drift, a Fe—Ni alloy for semi-tension mask comprising, in mass percentage (%), from 34 to 45% Ni, from 0.01 to 0.
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: July 29, 2003
    Assignee: Nippon Mining & Metals Co., Ltd.
    Inventors: Toshiyuki Ono, Masazumi Mori
  • Patent number: 6592810
    Abstract: Disclosed is an Fe—Ni alloy consisting of, by mass, 30 to 50% of Ni (or 27 to 47% Ni and not more than 22% Co), 0.005 to 0.1% of Nb, less than 0.01% of C, 0.002 to 0.02% of N, and the balance of Fe and inevitable impurities, wherein the equation “0.000013≦(% Nb)×(% N)≦0.002”, is fulfilled. In the alloy, preferably, the maximum grain size of compounds primarily containing Nb and nitrogen and other compounds primarily containing Nb and C is less than 0.5 &mgr;m, which can be observed at an fractional section of metal structure, and a total number of the compounds is not less than 50,000/mm2 at an fractional section. An average grain size of the alloy structure is not less than 10 by the crystal grain size number as defined in JIS G0551. The alloy may applied to shadow masks for the Braun tube and lead frames for semiconductor elements.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: July 15, 2003
    Assignee: Hitachi Metals, Ltd.
    Inventors: Junichi Nishida, Ryoji Inoue, Takehisa Seo
  • Patent number: 6572714
    Abstract: The creep property of a shadow mask, which has cathode-ray passing apertures, in the form of dots or slots formed by etching, and to which tension is then applied without undergoing press-forming, is enhanced. The Fe—Ni alloy containing from 30-50% of Ni, the balance consisting of iron and unavoidable impurities, has cold working temper of not less than 30% and not more than 57% of the final working degree.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: June 3, 2003
    Assignee: Nippon Mining & Metals Co., Ltd.
    Inventors: Tetsuo Kawahara, Norio Yuki, Kazuhiro Taki
  • Patent number: 6547893
    Abstract: It is a Fe—Ni based shadow mask material of Fe—Ni alloy or Fe—Ni—Co alloy used as a material for a color television cathode tube or the like, and relates to a material wherein the material has a texture that an X-ray intensity ratio Ir of cubic orientation (100)<001> to twinning orientation (221)<212> thereof in a (111) pole figure is a range of 0.5-5:1 and segregation of Ni, Mn or the like is less, and a section cleanness defined according to JIS G0555 is made to be not more than 0.05% to reduce the occurrence of streak or mottling in the etching.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: April 15, 2003
    Assignee: Nippon Yakin Kogyo Co., Ltd.
    Inventors: Tatsuya Itoh, Tsutomu Omori
  • Patent number: 6528012
    Abstract: In a welded structure and welded pipe, having members joined to each other by welding wherein, at least one of the members is formed of Fe—Ni-base low thermal expansion coefficient alloy, there is provided a welded structure and welded pipe having a weld metal free from cracking and achieving an excellent toughness and stress corrosion cracking resistance. Further, a welding material is provided which can form such a weld metal and is excellent in workability and weldability in fabrication. The weld metal comprises, on the weight % basis, Ni: 30 to 45%, Co: 0 to 10%, C: 0.03 to 0.5%, Mn: 0.7% or less, either one of or the total of Nb and Zr: 0.05 to 4%, and rare earth element: 0 to 0.5%, with impurities being P: 0.02% or less, Al: 0.01% or less, and oxygen: 0.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: March 4, 2003
    Assignees: Sumitomo Metal Industries, Ltd., Osaka Gas Co., Ltd., Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Kazutoshi Nishimoto, Naoshige Kubo, Hiroshi Iwahashi, Shuji Yamamoto, Hidefumi Yamanaka, Shinji Koga, Yutaka Chida, Taketo Yamakawa, Kouji Michiba, Hiroyuki Hirata, Kazuhiro Ogawa, Toshinobu Nishibata
  • Patent number: 6508892
    Abstract: A shadow mask blank of Fe—Ni alloy which exhibits excellent uniformity of diameter of apertures formed by perforation with etching for the passage of electron beams, consisting of 34-38% Ni, 0.05-0.5% Mn, 4-20 ppm S, and the balance Fe and no more than specified limits of C, Si, Al, and P, with MnS inclusions 50-1,000 nm in diameter dispersed at the density of at least 1,500/mm2 or simply with etched holes 0.5-10 &mgr;m in diameter emerging at the density of at least 2,000/mm2 when the blank is immersed in a 3% nitric acid-ethyl alcohol solution at 20° C. for 30 seconds. A method of manufacturing the blank comprises hot rolling of a slab of the Fe—Ni alloy, cooling, recrystallization annealing, cold rolling, etc. under controlled conditions: e.g., hot rolling the slab at 950-1,250° C. to 2-6 mm thick, cooling the stock in the range of 900-700° C. at the rate of 0.5° C./second, continuously passing the stock through a heating furnace at 850-1,100° C.
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: January 21, 2003
    Assignee: Nippon Mining & Metals Co., Ltd.
    Inventors: Takaaki Hatano, Yoshihisa Kita
  • Patent number: 6500281
    Abstract: In the production or a shadow mask, the through-holes for passing an electron beam are formed by etching of the Fe—Ni alloy. The variation in diameter of apertures is prevented by dispersing 2000 or more of precipitates and inclusions from 0.01 &mgr;m to 5 &mgr;m in diameter on the surface of said material per mm2. The Fe—Ni alloy of from 34 to 38% of Ni, not more than 0.5% of Mn, and if necessary, from 5 to 40 ppm of B, and from 5 to 40 ppm of N, the balance being Fe and unavoidable and incidental impurities with the proviso of 0.10% or less of C, 0.30% or less of Si, 0.30% or less of Al, 0.005% or less of S, and 0.005% or less of P.
    Type: Grant
    Filed: July 17, 2001
    Date of Patent: December 31, 2002
    Assignee: Nippon Mining & Metals Co., Ltd.
    Inventor: Ikuya Kurosaki
  • Publication number: 20020121317
    Abstract: Medium- and high-density articles are formed from melting and casting alloys containing tungsten, iron, nickel and optionally manganese and/or steel. In some embodiments, the articles have densities in the range of 8-10.5 g/cm3, and in other embodiments, the articles have densities in the range of 10.5-15 g/cm3. In some embodiments, the articles are ferromagnetic, and in others the articles are not ferromagnetic. In some embodiments, tungsten forms the largest weight percent of the alloy, and in other embodiments the alloy contains no more than 50 wt % tungsten. In some embodiments, the articles are shell shot.
    Type: Application
    Filed: August 6, 2001
    Publication date: September 5, 2002
    Inventor: Darryl D. Amick
  • Patent number: 6428633
    Abstract: In order to conduct welding so that the welded steel shows a decreased residual stress after welding without a post treatment such as a PWHT, the steel for welded structures and the welding wire of the present invention starts a transformation from austenite into martensite at a temperature (Ms temperature) from at least 200° C. to up to 350° C., and has a yield strength from at least 60 kg/mm2 to up to 120 kg/mm2 at the transformation starting temperature. The multipass welding process of the present invention comprises forming a weld metal having a Ms temperature of 150° C. to 300° C., and TIG remelt-run welding the surface of the final layer.
    Type: Grant
    Filed: October 19, 1998
    Date of Patent: August 6, 2002
    Assignee: Nippin Steel Corporation
    Inventors: Tadashi Kasuya, Shigeru Ohkita, Masao Fuji, Naoki Saitou, Junichi Kobayashi, Toshihiko Chiba
  • Patent number: 6379477
    Abstract: An Fe—Cr—Ni alloy for electron gun electrodes, comprises: 15 to 20% Cr; 9 to 15% Ni; 0.12% or less C; 0.005 to 1.0% Si; 0.005 to 2.5% Mn; 0.03% or less P; 0.0003 to 0.0100% S; 2.0% or less Mo; 0.001 to 0.2% Al; 0.003% or less O; 0.1% or less N; 0.1% or less Ti; 0.1% or less Nb; 0.1% or less V; 0.1% or less Zr; 0.05% or less Ca; 0.02% or less Mg by weight; balance Fe; and inevitable impurities. When the alloy is rolled into a sheet with a thickness in the range of 0.1 to 0.7 mm, the surface portion of the sheet includes groups of lining inclusions. The number of groups with widths of 10 &mgr;m or more and less than 20 &mgr;m and with lengths of 20 &mgr;m or more is 20/mm2 or less, and the number of groups with widths of 20 &mgr;m or more and with lengths of 20 &mgr;m or more is 5/mm2 or less.
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: April 30, 2002
    Assignee: Nippon Mining & Metals Co., Ltd.
    Inventor: Toshiyuki Ono
  • Patent number: 6372058
    Abstract: A low-expansion Fe—Ni based alloy for semi-tension masks with excellent creep properties consists of, in mass percentage, from 34 to 38% Ni, from 0.01 to 0.5% Mn, from 0.0003 to 0.0015% B, from 0.0010 to 0.0050% N, and the balance Fe and unavoidable impurities. The alloy further includes from 0.005 to 0.20% Si and from 0.005 to 0.030% Al. Among the unavoidable impurities, C, P and S are controlled to no more than 0.010%, no more than 0.015%, and no more than 0.010%, respectively. The alloy is subjected, at least once after hot rolling or after cold rolling, to annealing in a non-oxidizing atmosphere at between 650 and 750° C. for from 30 minutes to less than 5 hours. The alloy is subjected to stress relief annealing after final cold rolling. A semi-tension mask using the alloy and a color picture tube using the semi-stretched-tension mask, are also provided.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: April 16, 2002
    Assignee: Nippon Mining & Metals Co., Ltd.
    Inventor: Toshiyuki Ono
  • Patent number: 6344095
    Abstract: A low-thermal expansion cast steel having an average linear thermal expansion coefficient of less than 4.0×10−6/° C. in a range of room temperature to 100° C. and excellent machinability has a chemical composition (by mass) comprising 0.4-0.8% of C, 0.5% or less of Si, 1.0% or less of Mn, 0.01-0.3% of S, 30-40% of Ni, and 0.005-0.1% of Mg, the balance being substantially Fe and inevitable impurities, the contents of S and Mn satisfying S≦(1/4) Mn or (1/4) Mn<S≦(1/4) Mn+0.05.
    Type: Grant
    Filed: July 7, 2000
    Date of Patent: February 5, 2002
    Assignee: Hitachi Metals, Ltd.
    Inventors: Masahide Kawabata, Toshihiro Uehara
  • Publication number: 20020006350
    Abstract: Disclosed is an Fe—Ni alloy consisting of, by mass, 30 to 50% of Ni (or 27 to 47% Ni and not more than 22% Co), 0.005 to 0.1% of Nb, less than 0.01% of C, 0.002 to 0.02% of N, and the balance of Fe and inevitable impurities, wherein the equation “0.000013≦(% Nb)×(% N)≦0.002”, is fulfilled. In the alloy, preferably, the maximum grain size of compounds primarily containing Nb and nitrogen and other compounds primarily containing Nb and C is less than 0.5 &mgr;m, which can be observed at an fractional section of metal structure, and a total number of the compounds is not less than 50,000/mm2 at an fractional section. An average grain size of the alloy structure is not less than 10 by the crystal grain size number as defined in JIS G0551. The alloy may applied to shadow masks for the Braun tube and lead frames for semiconductor elements.
    Type: Application
    Filed: March 19, 2001
    Publication date: January 17, 2002
    Inventors: Junichi Nishida, Ryoji Inoue, Takehisa Seo
  • Publication number: 20010047839
    Abstract: A shadow mask blank of Fe—Ni alloy which exhibits excellent uniformity of diameter of apertures formed by perforation with etching for the passage of electron beams, consisting of 34-38% Ni, 0.05-0.5% Mn, 4-20 ppm S, and the balance Fe and no more than specified limits of C, Si, Al, and P, with MnS inclusions 50-1,000 nm in diameter dispersed at the density of at least 1,500/mm2 or simply with etched holes 0.5-10 &mgr;m in diameter emerging at the density of at least 2,000/mm2 when the blank is immersed in a 3% nitric acid-ethyl alcohol solution at 20° C. for 30 seconds. A method of manufacturing the blank comprises hot rolling of a slab of the Fe—Ni alloy, cooling, recrystallization annealing, cold rolling, etc. under controlled conditions: e.g., hot rolling the slab at 950-1,250° C. to 2-6 mm thick, cooling the stock in the range of 900-700° C. at the rate of 0.5° C./second, continuously passing the stock through a heating furnace at 850-1,100° C.
    Type: Application
    Filed: April 13, 2001
    Publication date: December 6, 2001
    Inventors: Takaaki Hatano, Yoshihisa Kita
  • Publication number: 20010045246
    Abstract: Iron/nickel alloy having a low coefficient of expansion, the chemical composition of which comprises iron, nickel, manganese, silicon, calcium, magnesium, less than 0.005% of aluminum, less than 0.001% of sulfur, less than 0.01% of oxygen, less than 0.005% of nitrogen, and less than 0.
    Type: Application
    Filed: July 30, 2001
    Publication date: November 29, 2001
    Applicant: IMPHY S.A.
    Inventors: Jacques Baudry, Michel Faral, Jean-Francois Tiers
  • Patent number: 6224824
    Abstract: Disclosed is an alloy steel of high corrosion resistance to hot molten salts containing chlorides and/or alkali oxides. The alloy steel is manufactured from a composition comprising 20-40 weight % of Ni, 0-8 weight % of Cr, 0.05 weight % or less of C, 0.5 weight % or less of Si, 1.0 weight % or less of Mn, 0.05 weight % or less of S, and the balance of Fe to total weight. With a low Cr content, the alloy steel is superb in the corrosion resistance to chloride and/or alkali oxide-containing molten salts, including LiCl—Li2O. Also, the alloy steel shows stable corrosion resistance to molten salts even at high temperature as well as low temperature in addition to being superior to workability. Thus, the alloy steel can be processed into plates, bars or pipes which are used for structural materials and structural components for treating molten salts.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: May 1, 2001
    Assignee: Korea Electric Power Corporation
    Inventors: Jun Shan Zhang, Young Joon Shin, Soo Haeng Cho, Hyun Soo Park
  • Patent number: 5997807
    Abstract: A thin plate made of an Fe--Ni alloy for electronic parts, which has excellent softening property. The alloy consists essentially of, by weight, 32 to 40% Ni, not more than 0.1% Si, not more than 0.5% Mn and 5 to 50 ppm boron, and balance of Fe and unavoidable impurities. It comprises also trace elements which fulfill the following requirements: "S+O".ltoreq.150 ppm, Al.ltoreq.400 ppm, N.ltoreq.50 ppm, P.ltoreq.100 ppm, an element of IVa, Va and VIa Groups defined in the periodic table being not more than 2000 ppm in amount, and an atomic ratio of "B(atom. %)/N(atom. %)" being not less than 0.8, preferably more than 1.0. The invention also relates to a shadow mask made of the alloy and a cathode-ray tube comprising the shadow mask.
    Type: Grant
    Filed: August 19, 1997
    Date of Patent: December 7, 1999
    Assignee: Hitachi Metals, Ltd.
    Inventor: Takeshi Kuboi
  • Patent number: 5958331
    Abstract: A Fe--Ni based alloy sheet having superior surface characteristic and superior etchability, essentially consisting, by weight, of 30 to 50% nickel, 0.05 to 0.5% manganese, 0.001 to 0.02% silicon, not more than 0.0015% aluminum, not more than 150 ppm oxygen, and the balance iron and incidental impurities, the value of Mn content(weight %)/Si content (weight %) being not less than 20. Preferably, silicon content is 0.001 to 0.01%, aluminum being not more than 0.0005%, oxygen being not more than 90 ppm, sulfur which is one of important impurities being not more than 0.005%, and boron which is one of important impurities being not more than 0.005%.
    Type: Grant
    Filed: April 20, 1998
    Date of Patent: September 28, 1999
    Assignee: Hitachi Metals, Ltd.
    Inventors: Takeo Mizuguchi, Makoto Ishihara, Tetsunori Hayafuji, Hidemi Takao
  • Patent number: 5916380
    Abstract: An Fe--Ni alloy for use as a part 10 of an electron-gun 4 is press-blanked by a punch to form minute apertures 10a, 10b, 10c for passing an electron beam 3. The burrs 10 formed around the minute apertures 10a, 10b, 10c are detrimental to such part 4. The Fe--Ni alloy according to the present invention essentially consists of from 30 to 55 wt % of Ni, not more than 0.5 wt % of Si, not more than 1.5 wt % of Mn, and the balance being Fe and unavoidable impurities. The alloy includes from 10 to 1,000 of A type or B type non-metallic inclusions of 10 .mu.m or more in length per 1 mm.sup.2 of longitudinal cross section, and from 100 to 50,000 of C type non-metallic inclusions having a diameter of 5 .mu.m or less.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: June 29, 1999
    Assignee: Nippon Mining & Metals Co., Ltd.
    Inventors: Norio Yuki, Masazumi Mori, Yoshihiro Ozeki
  • Patent number: 5858125
    Abstract: A magnetoresistive material of the present invention has a structure in which many clusters are surrounded by a crystal phase of Cu and/or Ag, where each cluster has a grain size of 20 nm or less and composed of an amorphous phase containing at least one ferromagnetic metal element T as a main component selected from Fe, Co and Ni, and at least one element M selected from Ti, Zr, Hf, V, Nb, Ta, Mo and W.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: January 12, 1999
    Assignee: Alps Electric Co., Ltd.
    Inventor: Naoya Hasegawa
  • Patent number: 5783145
    Abstract: An iron-nickel alloy, the chemical composition of which includes by weight:30%.ltoreq.Ni+Co.ltoreq.85%;0%.ltoreq.Co+Cu+Mn.ltoreq.10%;0%.ltoreq.Mo+W+Cr.ltoreq.4%;0%.ltoreq.V+Si.ltoreq.2%;0%.ltoreq.Nb+Ta.ltoreq.1%;0.003%.ltoreq.C.ltoreq.0.05% 0.003%.ltoreq.Ti.ltoreq.0.15%;0.003%.ltoreq.Ti+Zr+Hf.ltoreq.0.15%;0.001%<S+Se+Te<0.015%;and the remainder, iron and impurities resulting from production; in addition, the chemical composition satisfies the relationship:0.ltoreq.Nb+Ta+Ti+Al.ltoreq.1%.A cold-rolled strip with a cubic texture and its uses.
    Type: Grant
    Filed: February 27, 1997
    Date of Patent: July 21, 1998
    Assignee: Imphy S.A.
    Inventors: Lucien Coutu, Pierre Louis Reydet
  • Patent number: 5688471
    Abstract: The alloy of the invention provides a low coefficient of thermal expansion alloy having a CTE of about 4.9.times.10.sup.-6 m/m/.degree.C. or less at 204.degree. C. and a relatively high strength. The alloy contains about 40.5 to about 48 nickel, about 2 to about 3.7 niobium, about 0.75 to about 2 titanium, about 0 to about 1 aluminum, about 3.7 or less total niobium plus tantalum and a balance of iron and incidental impurities. Alloys of the invention may be aged to a Rockwell C hardness of at least about 30.
    Type: Grant
    Filed: August 14, 1996
    Date of Patent: November 18, 1997
    Assignee: Inco Alloys International, Inc.
    Inventors: John Scott Smith, Ladonna Sheree Hillis, Melissa Ann Moore
  • Patent number: 5652005
    Abstract: A method of producing filled sandwich cookies to be fed by an auger into an ice cream stream to produce ice cream with filled cookies comprising baking dough in units of multiple cookie elements, of substantially round shape, applying filling to each cookie element of a portion of the units which have been produced, sandwiching other units onto the filling, and then separating the multiple sandwich cookie units into individual sandwich cookies; the units comprise multiple cookie elements of approximately round shape, and each of which is between one-half inch and seven eighths inch diameter, the units containing two rows with three cookies in each row, with juncture lines between adjacent cookies.
    Type: Grant
    Filed: May 29, 1996
    Date of Patent: July 29, 1997
    Assignee: Interbake Foods Inc.
    Inventor: Dennis J. Loalbo