Patents Assigned to Ugine-Savoie Imphy
  • Patent number: 6821358
    Abstract: Ferritic stainless steel, comprising the following composition by weight: 0%<C≦0.030% 1%≦Si≦3% 0%<Mn≦0.5% 10%≦Cr≦13% 0%<Ni≦0.5% 0%<Mo≦3% N≦0.030% Cu≦0.5% Ti≦0.5% Nb≦1% Ca≧1×10−4% 0≧10×10−4% S≦0.030% P≦0.030% the remainder being iron and the impurities which are inevitable from the production of the steel.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: November 23, 2004
    Assignee: Ugine-Savoie Imphy
    Inventors: Etienne Havette, Christophe Bourgin, BenoƮt Pollet, Jean Lamontanara
  • Patent number: 6485680
    Abstract: Resulfurized stainless steel with high machinability and having an improved corrosion resistance, which includes, in its composition, anorthite- and/or pseudo-wollastonite- and/or gehlenite-type lime aluminosilicate inclusions combined with CrMnS inclusions, the chromium content of which is between 30% and 70%.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: November 26, 2002
    Assignee: Ugine-Savoie Imphy
    Inventors: Jean Ragot, Jean-Michel Hauser, Christian Trombert
  • Publication number: 20020129873
    Abstract: Ferritic stainless steel, compirsing the following composition by weight:
    Type: Application
    Filed: March 8, 2002
    Publication date: September 19, 2002
    Applicant: UGINE-SAVOIE IMPHY
    Inventors: Etienne Havette, Christophe Bourgin, Benoit Pollet, Jean Lamontanara
  • Patent number: 6447716
    Abstract: Nickel-based alloy useful for welding, welding method, and welding electrode.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: September 10, 2002
    Assignees: Ugine-Savoie Imphy, Sprint Metal-Societe de Production Internationale de Trefiles
    Inventors: Ricardo Cozar, Albert Bruyere, Bernard Bonnefois
  • Publication number: 20010046449
    Abstract: Resulfurized stainless steel with high machinability and having an improved corrosion resistance, which includes, in its composition, anorthite- and/or pseudo-wollastonite- and/or gehlenite-type lime aluminosilicate inclusions combined with CrMnS inclusions, the chromium content of which is between 30% and 70%.
    Type: Application
    Filed: March 5, 2001
    Publication date: November 29, 2001
    Applicant: UGINE-SAVOIE IMPHY
    Inventors: Jean Ragot, Jean-Michel Hauser, Christian Trombert
  • Patent number: 6322907
    Abstract: Composite wire comprising a core made of carbon steel the chemical composition of which consists, by weight, of: 0.15%≦C≦0.6%; 0.1%≦Si≦0.3%; 0.3%≦Mn≦1%; 0% V≦0.3%; the remainder being iron and impurities resulting from processing; and an outer layer made of stainless steel the composition of which consists, by weight, of 0.005%≦C≦0.05%; 0.005%≦N≦0.05%; 0.1%≦Si≦2%; 0.1%≦Mn≦5%; 5%≦Ni≦12%; 10%≦Cr ≦20%; 0%≦Mo≦3%; 0%≦Cu≦4%; the remainder being iron and impurities resulting from processing. The diameter of the wire is less than 1 mm and the tensile strength of the wire is in excess of 2000 MPa.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: November 27, 2001
    Assignees: Aster, Ugine-Savoie Imphy
    Inventors: Jean-Michel Hauser, Marc Francois
  • Patent number: 6311762
    Abstract: The invention concerns the adjustment of the linear distribution of an injected shearing fluid, during casting, through a slot (20) provided in the cooled metal body (1)—refractory riser block (14) interface of an ingot mold for continuous metal casting charge and emerging along said ingot inner periphery, the latter being provided with clamping means for adjusting the slot thickness. The invention is characterized in that it consists in “cold” injecting through said slot (20) a regulating inflammable fluid, which is ignited on its exit from the slot, and in acting on the clamping means (25, 26, 28, 29) such that the height of the flames (39) coming out of the slot (20) is substantially constant along the whole ingot inner periphery. The invention provides the advantage of an accurate and lasting adjustment of the injected flow rate without requiring the adjustment of the injection slot thickness. The invention is applicable to continuous steel charge casting in particular.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: November 6, 2001
    Assignees: Ascometal, Sogepass, Ugine-Savoie Imphy, Sollac, Societe Anonyme des Forges et Acieries de Dilling
    Inventors: Eric Perrin, Cosimo Salaris, Weisseldinger Edouard
  • Patent number: 6274084
    Abstract: Corrosion-resistant low-nickel austenitic stainless steel having the following compostion in percentages by weight: 0.01%<carbon<0.08%, 0.1%<silicon<1%, 5%<manganese<11%, 15%<chromium<17.5%, 1%<nickel<4%, 1%<copper<4%, 1×10−4%<sulfur<20×10−4%, 1×10−4%<calcium<50×10−4%, 0%<aluminum<0.03%, 0.005%<phosphorus<0.1%, boron<5×10−4%, oxygen<0.01%, the balance being iron and impurities resulting from the smelting operation.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: August 14, 2001
    Assignees: Ugine SA, Ugine-Savoie Imphy
    Inventor: Pascale Haudrechy
  • Patent number: 6260605
    Abstract: The continuous casting installation includes an ingot mould the walls (1) of which are formed by cooled metal walls (2) surmounted by a hot-top element (3) made of a heat insulating material. Holes for injecting a gas under pressure, such as a slot (10), lead into the ingot mould at least at the interface between the hot-top element and the metal wall. The insulation includes means (13 to 17), connected to the said holes, for supplying a gas or a gaseous mix with a thermal expansion capacity adjustable according to the composition of the cast metal alloy and the casting conditions. The adjustment of the thermal expansion capacity of the injected gas enables the adjustment of the heat flux density extracted from the cast metal in the zone where it starts to solidify.
    Type: Grant
    Filed: December 4, 1998
    Date of Patent: July 17, 2001
    Assignee: Ugine-Savoie Imphy
    Inventors: Jean-Marc Jolivet, Eric Perrin, Cosimo Salaris, Jacques Spiquel, Edouard Weisseldinger, Marc Burty
  • Patent number: 6228137
    Abstract: A process for producing a foaming slag above a stainless steel melted in an electric furnace, in which: a powder containing at least one metal oxide and carbon in its composition is introduced into the slag, at least one oxide present in the powder is reduced by its reaction with the carbon to form in the slag bubbles composed of the metal of the metal oxide and of carbon monoxide, the bubbles present in the slag giving rise to a slag in the form of a stable foam.
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: May 8, 2001
    Assignees: Ugine-Savoie Imphy, Ugine SA
    Inventors: Yves Guillot, Luc Sollier, Olivier Bletton, Frederic Descaves
  • Patent number: 6123784
    Abstract: Austenitic stainless steel for the production of wire, which can be used in the field of drawing wire down to diameters of less than 0.3 mm and in the field of producing components subjected to fatigue, characterized by the following composition by weight:5.times.10.sup.-3 %.ltoreq.carbon.ltoreq.200.times.10.sup.-3 %5.times.10.sup.-3 %.ltoreq.nitrogen.ltoreq.400.times.10.sup.-3 %0.2%.ltoreq.manganese.ltoreq.10%12%.ltoreq.chromium.ltoreq.23%0.1%.ltoreq.nickel.ltoreq.17%0.1%.ltoreq.silicon.ltoreq.2%,in which the residual elements are controlled so as to obtain inclusions of oxides in the form of a glassy mixture, the proportions by weight of which are as follows:40%.ltoreq.SiO.sub.2 .ltoreq.60%5%.ltoreq.MnO.ltoreq.50%1%.ltoreq.CaO.ltoreq.30%0%.ltoreq.MgO.ltoreq.4%5%.ltoreq.Al.sub.2 O.sub.3 .ltoreq.25%0%.ltoreq.Cr.sub.2 O.sub.3 .ltoreq.4%0%.ltoreq.TiO.sub.2 .ltoreq.4%.
    Type: Grant
    Filed: March 17, 1999
    Date of Patent: September 26, 2000
    Assignee: Ugine-Savoie Imphy
    Inventor: Etienne Havette
  • Patent number: 6113849
    Abstract: Nickel-based alloy, the chemical composition of which comprises, by weight, from 24.5% to 26.5% chromium and from 13.5% to 16.5% molybdenum, the remainder being nickel, optionally one or more complementary alloy elements selected from iron, aluminium and magnesium, and impurities resulting from processing. Drawn wire made of nickel-based alloy, and welding electrode including a drawn wire made of nickel-based alloy.
    Type: Grant
    Filed: July 13, 1998
    Date of Patent: September 5, 2000
    Assignee: Ugine-Savoie Imphy S.A.
    Inventors: Albert Bruyere, Jean-Bernard Couffin, Ricardo Cozar, Jacques Levigoureux
  • Patent number: 6048416
    Abstract: Steel, steel wire, and a process for forming a drawn wire, especially tire-reinforcing wire of diameter smaller than 0.4 mm, by drawing a steel of the following composition by weight: 0.005%.ltoreq.carbon.ltoreq.0.050%; 0.005%.ltoreq.nitrogen.ltoreq.0.050%; 0.1%.ltoreq.silicon.ltoreq.2.0%; 0.1%.ltoreq.manganese.ltoreq.5%; 5%.ltoreq.nickel.ltoreq.12%; 10%.ltoreq.chromium.ltoreq.20%; 0.01%.ltoreq.copper.ltoreq.4%; 0.01%.ltoreq.molybdenum.ltoreq.3%,the base wire being subjected to:drawing to a cumulative deformation ratio .epsilon. of larger than 2 and smaller than 4,an intermediate annealing treatment at above 700.degree. C.final drawing to a cumulative deformation ratio .epsilon. of smaller than 4.5 and larger than 3.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: April 11, 2000
    Assignees: Ugine-Savoie Imphy, Sprint Metal - Societe de Production Internationale de Trefiles
    Inventors: Jean-Michel Hauser, Joel Marandel