Patents Assigned to Centro Sviluppo Materiali S.p.A.
  • Patent number: 10337080
    Abstract: A process for the production of grain non-oriented electric Fe—Si steel strips, with excellent electric and/or magnetic characteristics to be used preferably for construction of electrical machines is disclosed.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: July 2, 2019
    Assignee: CENTRO SVILUPPO MATERIALI S.P.A.
    Inventor: Stefano Fortunati
  • Patent number: 10066280
    Abstract: The object of the invention is an austenitic stainless steel with high plasticity induced by twinning with innovative chemical composition, and the use thereof in the automobile industry and in all applications wherein both a high resistance to corrosion and a high formability is requested, together with mechanical features of high-resistant steels. The invention also concerns a process for the production of this austenitic stainless steel with high twinning-induced plasticity.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: September 4, 2018
    Assignee: CENTRO SVILUPPO MATERIALI S.P.A.
    Inventor: Alessandro Ferraiuolo
  • Patent number: 9828649
    Abstract: Process for the production of grain-oriented Fe—Si sheets having excellent magnetic characteristics to be used for construction of electrical devices wherein the thickness of hot rolled strip (_>3.5 mm) and the total cold deformation rate (90-98%) are higher than known processes, and wherein hot rolled strip annealing before cold rolling is not scheduled.
    Type: Grant
    Filed: October 3, 2012
    Date of Patent: November 28, 2017
    Assignee: CENTRO SVILUPPO MATERIALI S.P.A.
    Inventors: Stefano Fortunati, Stefano Cicale′, Giuseppe Abbruzzese
  • Patent number: 9683944
    Abstract: Disclosed are a method and apparatus for the surface inspection and detection of defects of long products by means of a combination of images of the same region of the long product. The images are taken under different lighting condition in order to reconstruct the shape of the surface and thus obtain information on the presence of defects.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: June 20, 2017
    Assignee: CENTRO SVILUPPO MATERIALI S.P.A.
    Inventor: Valerio Moroli
  • Patent number: 9328396
    Abstract: The present invention has as objective a procedure for the oriented-grain magnetic sheet that provides particular operative hot rolling mill conditions of silicon steel slabs, by means which it is possible to highly contain the heterogeneities of hot rolled sheet re-crystallization. The use of these operative conditions permits to reduce the growing tendency of the crystallized grain during the annealing of the sheets at a final thickness that precedes the secondary oriented re-crystallization. Contemporarily, the particular operational conditions of hot rolling mill according to the invention permit a fine precipitation of secondary phases useful to the control of the grain growing, starting from a quantity of sulphur (S) and nitrogen (N) in matrix lower than corresponding provided by the conventional technologies and consequently disposable in metallic solid solution before the rolling after the heating of the slabs at temperature values lower than 1300° C.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: May 3, 2016
    Assignee: CENTRO SVILUPPO MATERIALI S.P.A.
    Inventors: Giuseppe Abbruzzese, Stefano Cicale, Stefano Fortunati
  • Patent number: 8871035
    Abstract: A process for producing grain oriented magnetic sheets by subjecting a steel slab ?100 mm, containing 2.5-3.5% si, to the following operations: optional first heating, to a temperature T1?1250° C.; first rough hot-rolling at T2 between 900 and 1200° C., the reduction ratio (% Rid) being at least 80% in the absence of a subsequent heating or, in the presence of a subsequent heating to T3?1300° C., at least 60% determined by % Rid=80?(T3?T2)/5; second finishing hot-rolling at T4<1300° C. to a rolled-section thickness of 1.5 3.0 mm; cold-rolling, in one or more stages with optional intermediate annealing and with a cold reduction ratio ?60% applied in the last stage; primary recrystallization annealing, optionally in a decarburizing atmosphere; second recrystallization annealing.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: October 28, 2014
    Assignee: Centro Sviluppo Materiali S.p.A.
    Inventors: Stefano Fortunati, Giuseppe Abbruzzese, Stefano Cicale′
  • Patent number: 8517724
    Abstract: A simple and economical process for rendering the fine fraction, from crushing of vehicles and iron scraps, capable of being used in the manufacture of bituminous or cement-based conglomerates as partial substitutes of quarry inerts. Subject of the invention is also a reactor suitable for carrying out the above process. FIG. 1 shows an embodiment of the reactor.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: August 27, 2013
    Assignees: Centro Sviluppo Materiali S.p.A., Centro Rottami S.r.l.
    Inventors: Giuseppe Faslivi, Medardo Pinti, Fabio Salvati, Leopoldo Del Prete
  • Publication number: 20130160897
    Abstract: The present invention has as objective a procedure for the oriented-grain magnetic sheet that provides particular operative hot rolling mill conditions of silicon steel slabs, by means which it is possible to highly contain the heterogeneities of hot rolled sheet re-crystallization. The use of these operative conditions permits to reduce the growing tendency of the crystallized grain during the annealing of the sheets at a final thickness that precedes the secondary oriented re-crystallization. Contemporarily, the particular operational conditions of hot rolling mill according to the invention permit a fine precipitation of secondary phases useful to the control of the grain growing, starting from a quantity of sulphur (S) and nitrogen (N) in matrix lower than corresponding provided by the conventional technologies and consequently disposable in metallic solid solution before the rolling after the heating of the slabs at temperature values lower than 1300° C.
    Type: Application
    Filed: June 25, 2012
    Publication date: June 27, 2013
    Applicant: CENTRO SVILUPPO MATERIALI S.P.A.
    Inventors: Giuseppe ABBRUZZZESE, Stefano Cicale, Stefano Fortunati
  • Patent number: 8277573
    Abstract: A process for the production of a grain oriented magnetic strip, made of steel containing 2.3 to 5.0% of silicon, obtained by producing a hot-rolled sheet containing a distribution of second phases capable of controlling the secondary recrystallization by means of a two-step hot-rolling with an intermediate annealing, and by changing it into the final product.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: October 2, 2012
    Assignee: Centro Sviluppo Materiali S.p.A.
    Inventors: Giuseppe Abbruzzese, Stefano Cicale', Stefano Fortunati
  • Publication number: 20120237389
    Abstract: An austenitic steel not susceptible to relaxation cracking, with composition comprising, in percentages by weight: 0.019% ?C ?0.030%, 0.5% ?Mn ?2%, 0.1% ?Si ?0.75%, Al >0.25%, 18% ?Cr ?25%, 12% ?Ni ?20%, 1.5% ?Mo ?3%, 0.001 % <B ?0.008%, 0.25% ?V ?0.35%, 0.23% ?N ?0.27%, the balance being iron and unavoidable impurities wherein: Ni(eq.) ?1.11 Cr(eq.) ?8.24, wherein: Cr(eq)=Cr+Mo+1.5 Si+5V+3AI+0.02, Ni(eq)=Ni+30C+x(N?0.045)+0.87 wherein: x=30 for N?0.2, x=22 for 0.2<N?0.25, x=20 for 0.25<N?0.35.
    Type: Application
    Filed: July 20, 2010
    Publication date: September 20, 2012
    Applicants: ArcelorMittal Investigacion y Desarrollo SL, Netherlands Org. for Applied Sci. Research (TNO), Centro Sviluppo Materiali S.P.A.
    Inventors: Bernard Bonnefois, Amelie Fanica, Lionel Coudreuse, Tassa Oriana, Johannes Cornelis Van Wortel
  • Patent number: 8192566
    Abstract: A continuous annealing and pickling process of flat cold-rolled products, such as stainless steel strips, to obtain a high surface quality product at high production rates and with a low environmental impact. It comprises the following steps: heating, up to a temperature comprised in the range 650-1050° C., in an atmosphere with an oxygen content comprised in the range from 0.5 to 12%; heating for a time comprised from 10 to 200 sec up to a temperature comprised in the range from 650 to 1200° C. in presence of oxidizing agents and/or inert agents; cooling down to temperatures comprised in the range from 650° C. to ambient temperature in presence of oxidizing agents and/or inert agents; thermochemical or electrolytic descaling and finally possible pickling and/or passivation, by means of the use of pickling baths consisting of mineral acid solutions.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: June 5, 2012
    Assignees: Danieli & C. Officine Meccaniche S.p.A., Centro Sviluppo Materiali S.p.A.
    Inventors: Alessandro Dulcetti, Milorad Pavlicevic, Nicoletta Zacchetti, Alessandra Primavera, Stefano Luperi, Luca Lattanzi, Simone Guanin
  • Publication number: 20120018049
    Abstract: Process for the production of grain-oriented magnetic sheets, wherein a slab made of steel having a thickness of ?100 mm, containing Si in the range comprised between 2.5 and 3.5% by weight, is subjected to a thermo-mechanical cycle comprising the following operations:—optional first heating to a temperature T1 no higher than 1250° C.·first rough hot-rolling, in a first rough hot rolling mill, to a temperature T2 comprised between 900 and 1200° C., the reduction ratio (% Rid) applied to the first rough hot-rolling being adjusted so as to be:—of at least 80%, in the absence of a subsequent heating to a temperature T3—determined by the following relationship % Rid=80 (T3?T2)/5, in the presence of a subsequent heating to a temperature T3—optional second heating to a temperature T3 >T2·second finishing hot-rolling, in a second fmishing hot rolling mill, to a temperature T4<T3 to a thickness of the rolled section comprised in the range of 1.5 mm-3.
    Type: Application
    Filed: November 18, 2009
    Publication date: January 26, 2012
    Applicant: CENTRO SVILUPPO MATERIALI S.P.A.
    Inventors: Stefano Fortunati, Giuseppe Abbruzzese, Stefano Cicale
  • Publication number: 20100300583
    Abstract: A process for the production of a grain oriented magnetic strip, made of steel containing 2.3 to 5.0% of silicon, obtained by producing a hot-rolled sheet containing a distribution of second phases capable of controlling the secondary recrystallization by means of a two-step hot-rolling with an intermediate annealing, and by changing it into the final product.
    Type: Application
    Filed: April 18, 2008
    Publication date: December 2, 2010
    Applicant: Centro Sviluppo Materiali S.p.A.
    Inventors: Giuseppe Abbruzzese, Stefano Cicale', Stefano Fortunati
  • Patent number: 7799199
    Abstract: Environment-friendly process for descaling, pickling and finishing/passivating in a continuous, integrated and flexible manner, applicable to any type of stainless steel, regardless of its physical structure, chemical composition and nature of surface oxides to be removed, within a single plant in which the required chemical, electrochemical, mechanical and hydromechanical treatments are carried out, merely diversifying the operative conditions of each treatment according to the stainless steel type to be processed. The process and the plant according to the invention allow elevated reaction rate, excellent surface quality, low energy and chemical reagent consumption and total environmental compatibility. The figure shows the block diagram of an embodiment of the plant according to the invention.
    Type: Grant
    Filed: December 29, 2002
    Date of Patent: September 21, 2010
    Assignees: Centro Sviluppo Materiali S.p.A., Thyssenkrupp Acciai Speciali Terni S.p.A., Henkel KGAA
    Inventors: Alessandro Dulcetti, Stefano Luperi, Gianvincenzo Salamone, Giovanni Vespasiani, Stefano Mantovani, Yean Demertzis
  • Patent number: 7070857
    Abstract: Multi-layer composite product, featuring low emissivity in the mid-infrared band (as wavelength range 2,5–5 ?m) and far-infrared (as wavelength range 8.0–14.0 ?m) bands, as well as low reflexivity in the near-infrared (at a wavelength range of 0.7–2.5 ?m) and in the visible (as wavelength range 0.3–0.7 ?m) bands, including a base constructed with low-density and/or high thermal-resilience structural materials, covered with optionally doped coating, and where, between the base and the coating, at least one intermediate layer of metals or metal oxides is planned for insertion.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: July 4, 2006
    Assignees: Centro Sviluppo Materiali S.p.A., Alenia Aeronautica S.p.A.
    Inventors: Mario Tului, Roberta Valle, Flavio Mortoni, Marco Protti
  • Patent number: 7005599
    Abstract: Plasma torch (8; 10) of improved performances, comprising: an electrode (13) provided with a respective electrode head (18; 37); a nozzle (14); and an outside jacket (26), there being formed a first cooling circuit (20, 21) of a coolant for the electrode head (18; 37) having an end passage (22), said head being characterised in that it comprises a device (25) for disposing of the electrode heat, located inside of the first cooling circuit.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: February 28, 2006
    Assignee: Centro Sviluppo Materiali S.p.A.
    Inventors: Giuseppe Faslivi, Medardo Pinti, Renato D'Angelo
  • Patent number: 6921472
    Abstract: A process for dissolving metals, in particular tin, and a plant for dissolving metals operating according to said process allow to minimize the quantity of metal in the sludge and the oxygen consumption, and entail a first step in which in a first reactor an effective quantity of oxygen is solubilized in an electrolytic solution obtaining an oxygen-enriched electrolytic solution; and a second step, distinct from the former, in which in a second reactor said oxygen-enriched solution is flown through a bed of metal for the deposition in a metallic form.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: July 26, 2005
    Assignee: Centro Sviluppo Materiali S.p.A.
    Inventors: Alessandro Dulcetti, Valerio Ghisolfi, Medardo Pinti, Maurizio Podrini, Baldo Gurreri
  • Publication number: 20040258916
    Abstract: A silicon carbide-based thermal spray powder contains at least one boride chosen from zirconium boride, titanium boride and hafnium boride. The powder is prepared by mixing and aggregation of powders containing the compounds in question. Said thermal spray powder is used to deposit, via the plasma spraying technique, a silicon carbide-based coating on a metallic or non-metallic substrate. The figure shows the X-ray crystallogram obtained, for a silicon carbide-based powder, according to the invention, after thermal spraying. The substantial identity of this crystallogram with the one obtained prior to thermal spraying demonstrates that the silicon carbide has been deposited on the substrate without decomposing.
    Type: Application
    Filed: December 10, 2003
    Publication date: December 23, 2004
    Applicant: Centro Sviluppo Materiali S.P.A.
    Inventors: Mario Tului, Teodoro Valente
  • Publication number: 20040146658
    Abstract: A process for the preparation of a composite multilayer product with selective optical properties comprises the operation of depositing, by thermal plasma spraying of powders, a coating of semiconductor oxides doped with oxides of elements chosen from the group consisting of transition metals and metals in the groups III-A and V-A of the periodic table of elements, in which the coating obtained maintains the composition and doping of the thermal plasma sprayed powders substantially unchanged. The figure shows the X-ray diffraction spectrum of a coating deposited according to the process of the present invention.
    Type: Application
    Filed: December 10, 2003
    Publication date: July 29, 2004
    Applicant: CENTRO SVILUPPO MATERIALI S.P.A.
    Inventor: Mario Tului
  • Patent number: 6767006
    Abstract: Solubilizing device of a gas into a fluid includes the following components in combination: at least a first pipe section (1) convergent at the end thereof; a second pipe section (2), with a cross section smaller than that of the first pipe section (1), coaxial and integral thereto; a third pipe section (3) divergent for the entire length thereof, coaxial to the second pipe section (2), of a cross section intermediate between the ones of the first and of the second pipe section, the second and the third pipe section being separated by a mixing chamber, provided with a gas introducer (5) and (6), substantially slanted of a ≦90° angle with respect to the axis of the pipe section (2), for the inlet and the adjustment of the gaseous substance to be admixed to the fluid, respectively. The invention also relates to the use of the aforesaid device in various technological fields. The figure shows an embodiment of the device according to the invention.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: July 27, 2004
    Assignee: Centro Sviluppo Materiali S.p.A.
    Inventor: Marco Tripepi