Patents Assigned to Ugine-Savoie Imphy
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Patent number: 6821358Abstract: 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: GrantFiled: March 8, 2002Date of Patent: November 23, 2004Assignee: Ugine-Savoie ImphyInventors: Etienne Havette, Christophe Bourgin, BenoĆ®t Pollet, Jean Lamontanara
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Patent number: 6485680Abstract: 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: GrantFiled: March 5, 2001Date of Patent: November 26, 2002Assignee: Ugine-Savoie ImphyInventors: Jean Ragot, Jean-Michel Hauser, Christian Trombert
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Publication number: 20020129873Abstract: Ferritic stainless steel, compirsing the following composition by weight:Type: ApplicationFiled: March 8, 2002Publication date: September 19, 2002Applicant: UGINE-SAVOIE IMPHYInventors: Etienne Havette, Christophe Bourgin, Benoit Pollet, Jean Lamontanara
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Patent number: 6447716Abstract: Nickel-based alloy useful for welding, welding method, and welding electrode.Type: GrantFiled: December 1, 1999Date of Patent: September 10, 2002Assignees: Ugine-Savoie Imphy, Sprint Metal-Societe de Production Internationale de TrefilesInventors: Ricardo Cozar, Albert Bruyere, Bernard Bonnefois
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Publication number: 20010046449Abstract: 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: ApplicationFiled: March 5, 2001Publication date: November 29, 2001Applicant: UGINE-SAVOIE IMPHYInventors: Jean Ragot, Jean-Michel Hauser, Christian Trombert
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Patent number: 6322907Abstract: 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: GrantFiled: July 29, 1999Date of Patent: November 27, 2001Assignees: Aster, Ugine-Savoie ImphyInventors: Jean-Michel Hauser, Marc Francois
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Patent number: 6311762Abstract: 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: GrantFiled: April 26, 2000Date of Patent: November 6, 2001Assignees: Ascometal, Sogepass, Ugine-Savoie Imphy, Sollac, Societe Anonyme des Forges et Acieries de DillingInventors: Eric Perrin, Cosimo Salaris, Weisseldinger Edouard
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Patent number: 6274084Abstract: 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: GrantFiled: July 2, 1999Date of Patent: August 14, 2001Assignees: Ugine SA, Ugine-Savoie ImphyInventor: Pascale Haudrechy
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Patent number: 6260605Abstract: 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: GrantFiled: December 4, 1998Date of Patent: July 17, 2001Assignee: Ugine-Savoie ImphyInventors: Jean-Marc Jolivet, Eric Perrin, Cosimo Salaris, Jacques Spiquel, Edouard Weisseldinger, Marc Burty
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Patent number: 6228137Abstract: 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: GrantFiled: September 12, 1997Date of Patent: May 8, 2001Assignees: Ugine-Savoie Imphy, Ugine SAInventors: Yves Guillot, Luc Sollier, Olivier Bletton, Frederic Descaves
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Patent number: 6123784Abstract: 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: GrantFiled: March 17, 1999Date of Patent: September 26, 2000Assignee: Ugine-Savoie ImphyInventor: Etienne Havette
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Patent number: 6113849Abstract: 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: GrantFiled: July 13, 1998Date of Patent: September 5, 2000Assignee: Ugine-Savoie Imphy S.A.Inventors: Albert Bruyere, Jean-Bernard Couffin, Ricardo Cozar, Jacques Levigoureux
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Patent number: 6048416Abstract: 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: GrantFiled: April 29, 1999Date of Patent: April 11, 2000Assignees: Ugine-Savoie Imphy, Sprint Metal - Societe de Production Internationale de TrefilesInventors: Jean-Michel Hauser, Joel Marandel