Patents by Inventor Luciano Vignolo
Luciano Vignolo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230257842Abstract: A correction apparatus for correcting the planarity of a metal strip advancing into a coating system for coating said metal strip with a layer of molten metal, said apparatus comprising a bridle roll, which modifies the feeding direction of the metal strip exiting an annealing furnace; only one sink roll, arranged downstream of said bridle roll and inside a tank adapted to contain a bath of said molten metal; a correction device for correcting the planarity of the metal strip arranged between said bridle roll and said sink roll; wherein said correction device comprises at least two motorized rolls; wherein a first motorized roll of said at least two motorized rolls is distal from said bridle roll in a fixed position with respect to a feeding path of the metal strip, said first motorized roll being arranged on a first side of said feeding path; wherein said bridle roll is also arranged on said first side; and wherein a second motorized roll of said at least two motorized rolls is proximal to said bridle roll aType: ApplicationFiled: July 2, 2021Publication date: August 17, 2023Inventors: Luciano Vignolo, Gianluca Bazzaro
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Patent number: 11674197Abstract: A combined continuous casting and endless rolling plant for a metal strip, comprising—a continuous casting line (1) for casting a slab;—a first rolling mill (6) for roughing the slab and for obtaining a transfer bar;—a second rolling mill (11) for finishing the transfer bar and for obtaining a strip;—a third rolling mill (18), comprising at least two first rolling stands (17), for further reducing the thickness of the strip;—accumulation means (20) of the strip, downstream of said third rolling mill (18), comprising at least one first high-capacity reel (37, 37?) dimensioned to wind and unwind a coil weighing from 80 to 250 tons and/or up to 6 meters in diameter, named mega coil;—flying cutting means (13), arranged between said third rolling mill (18) and said accumulation means (20), configured to cut the strip after the mega roll has been wound on the at least one first reel (37, 37?);—a cutting and winding line (22), downstream of said accumulation means (20), for cutting the strip of the mega coil and winType: GrantFiled: March 15, 2018Date of Patent: June 13, 2023Assignee: DANIELI & C. OFFICINE MECCANICHE S.P.A.Inventors: Luciano Vignolo, Mauro Guagnelli
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Publication number: 20230031905Abstract: The invention concerns a continuous pickling plant (101) for the treatment of metal products (109) in the form of a strip or tube which includes a plurality of acid solution process tanks (102) each divided into a plurality of turbulence cells (114) and a recirculation system of the acid solution. The plant also includes, upstream of the plurality of process tanks (102), a device for heating (124; 126) the metal product (109), namely an induction heating (124) system and/or a tunnel with water sprays (126). A solution with only two pickling tanks (102) is also presented. Devices are described (135; 136; 138, 138a) to increase turbulence in the tanks and to accelerate pickling, e.g. by adding fresh acid (146) in the first tank. The invention also concerns a related pickling process. The invention optimizes the effect of the acid and reduces the residence time of the strip (109) in the plant.Type: ApplicationFiled: April 22, 2020Publication date: February 2, 2023Inventors: Alessandra Primavera, Emanuele Trucillo, Luciano Vignolo
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Publication number: 20220372607Abstract: A stabilization apparatus for stabilizing a metal strip rising from a molten metal bath along a theoretical feeding plane, comprising at least one pair of air knives, each being arranged in a mutually specular manner with respect to said plane; at least one pair of electromagnetic stabilizing devices, each being arranged in a mutually specular manner with respect to said plane; a pair of first support beams, each supporting a respective air knife; a pair of second support beams, each supporting a respective electromagnetic stabilizer device; wherein the pair of second support beams is distinct from the pair of first support beams, and wherein the first support beams are distal from the plane, while the second support beams are proximal to said plane and arranged in an innermost position with respect to the pair of first support beams.Type: ApplicationFiled: December 10, 2020Publication date: November 24, 2022Inventors: Alessandro Cona, Luciano Vignolo
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Patent number: 11338341Abstract: A plant for cleaning rolled metal strips provided with a superficial layer of oxide, the plant comprising unwinding means for unwinding at least one coil of rolled strip and pickling means for pickling said rolled strip; wherein there are provided measuring means for measuring the thickness of the superficial layer of oxide, arranged between said unwinding means and said pickling means. A relating cleaning method is also claimed.Type: GrantFiled: May 24, 2018Date of Patent: May 24, 2022Assignee: DANIELI & C. OFFICINE MECCANICHE S.p.A.Inventors: Luciano Vignolo, Alessandra Primavera, Gianfranco Marconi
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Patent number: 11097323Abstract: A combined continuous casting and endless rolling plant for a metal strip, comprising—a continuous casting line (1) for casting a slab; —a first rolling mill (6) for roughing the slab and for obtaining a transfer bar; —a second rolling mill (11) for finishing the transfer bar and for obtaining a strip; —a third rolling mill (18), comprising at least two rolling stands (17), for further reducing the N thickness of the strip; —accumulation means (20) of the strip comprising at least one first reel (37, 37?) dimensioned to wind and unwind a coil weighing from 80 to 250 metric tons and/or up to 6 meters in diameter, named mega coil; —first cutting means (13), arranged between said third rolling mill (18) and said accumulation means (20), configured to cut the strip after the mega coil has been wound on the at least one first reel (37, 37?); —at least one second reel (48) for winding portions of strip, unwound from said accumulation means (20), up to a predetermined weight limit or coil diameter limit; —second cutType: GrantFiled: March 15, 2018Date of Patent: August 24, 2021Assignee: DANIELI & C. OFFICINE MECCANICHE S.p.A.Inventors: Luciano Vignolo, Mauro Guagnelli
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Publication number: 20200156131Abstract: A plant for cleaning rolled metal strips provided with a superficial layer of oxide, the plant comprising unwinding means for unwinding at least one coil of rolled strip and pickling means for pickling said rolled strip; wherein there are provided measuring means for measuring the thickness of the superficial layer of oxide, arranged between said unwinding means and said pickling means. A relating cleaning method is also claimed.Type: ApplicationFiled: May 24, 2018Publication date: May 21, 2020Inventors: Luciano Vignolo, Alessandra Primavera, Gianfranco Marconi
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Publication number: 20200086368Abstract: A combined continuous casting and endless rolling plant for a metal strip, comprising—a continuous casting line (1) for casting a slab;—a first rolling mill (6) for roughing the slab and for obtaining a transfer bar;—a second rolling mill (11) for finishing the transfer bar and for obtaining a strip;—a third rolling mill (18), comprising at least two rolling stands (17), for further reducing the N thickness of the strip;—accumulation means (20) of the strip comprising at least one first reel (37, 37?) dimensioned to wind and unwind a coil weighing from 80 to 250 metric tons and/or up to 6 meters in diameter, named mega coil;—first cutting means (13), arranged between said third rolling mill (18) and said accumulation means (20), configured to cut the strip after the mega coil has been wound on the at least one first reel (37, 37?);—at least one second reel (48) for winding portions of strip, unwound from said accumulation means (20), up to a predetermined weight limit or coil diameter limit;—second cutting meType: ApplicationFiled: March 15, 2018Publication date: March 19, 2020Inventors: Luciano Vignolo, Mauro Guagnelli
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Publication number: 20200071793Abstract: A combined continuous casting and endless rolling plant for a metal strip, comprising—a continuous casting line (1) for casting a slab;—a first rolling mill (6) for roughing the slab and for obtaining a transfer bar;—a second rolling mill (11) for finishing the transfer bar and for obtaining a strip;—a third rolling mill (18), comprising at least two first rolling stands (17), for further reducing the thickness of the strip;—accumulation means (20) of the strip, downstream of said third rolling mill (18), comprising at least one first high-capacity reel (37, 37?) dimensioned to wind and unwind a coil weighing from 80 to 250 tons and/or up to 6 meters in diameter, named mega coil;—flying cutting means (13), arranged between said third rolling mill (18) and said accumulation means (20), configured to cut the strip after the mega roll has been wound on the at least one first reel (37, 37?);—a cutting and winding line (22), downstream of said accumulation means (20), for cutting the strip of the mega coil and winType: ApplicationFiled: March 15, 2018Publication date: March 5, 2020Inventors: Luciano Vignolo, Mauro Guagnelli
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Patent number: 9211576Abstract: The present application relates to a vibration damping system for a rolling mill comprising a rolling cage and a bending adjustment system (3,3?) of the rollers comprising hydraulic actuators acting on the rollers and hydraulic circuits (18, 19) for feeding, and hydraulic damping means (25, 31, 32) of a force connected to the hydraulic circuits (18, 19) for actuating a damping effect by means of the hydraulic actuators. The hydraulic damping means comprises a pair of hydraulic pumps (25B, 25C) or a pair of hydraulic cylinders with a dual chamber, connected in an opposite direction to each other to the hydraulic circuits (18, 19).Type: GrantFiled: October 7, 2011Date of Patent: December 15, 2015Assignee: Danieli & C. Officine Meccaniche S.P.A.Inventors: Luciano Vignolo, Andrea De Luca, Matteo Nobile, Nicola Amati, Carmine Pristera′, Giuseppe Romeo, Andrea Tonoli
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Publication number: 20130192324Abstract: The present application relates to a vibration damping system for a rolling mill comprising a rolling cage and a bending adjustment system (3,3?) of the rollers comprising hydraulic actuators acting on the rollers and hydraulic circuits (18, 19) for feeding, and hydraulic damping means (25, 31, 32) of a force connected to the hydraulic circuits (18, 19) for actuating a damping effect by means of the hydraulic actuators. The hydraulic damping means comprises a pair of hydraulic pumps (25B, 25C) or a pair of hydraulic cylinders with a dual chamber, connected in an opposite direction to each other to the hydraulic circuits (18, 19).Type: ApplicationFiled: October 7, 2011Publication date: August 1, 2013Applicant: DANIELI & C. OFFICINE MECCANICHE S.P.A.Inventors: Luciano Vignolo, Andrea De Luca, Matteo Nobile, Nicola Amati, Carmine Pristera, Giuseppe Romeo, Andrea Tonoli
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Patent number: 8459083Abstract: A roller guiding system for thin strips (20) at a rolling system outlet which allows a safe guiding without take-off and consequent tipping/folding of the head of the strip and without cobbles even at high feeding speeds. The system of the invention prevents the strip from impacting or sliding on the upper containment devices (8) or on the rollers (4?) by its upwards or downwards movement, thus avoiding possible damages to the surface, such as scratches or lines. Furthermore, such a guiding system acts on the mechanical-aerodynamic phenomenon which causes instability in the head moving by making a self-centering guiding system which is thus suitable for improving the winding quality of the coil itself.Type: GrantFiled: April 17, 2008Date of Patent: June 11, 2013Assignee: Danieli & C. Officine Meccaniche S.p.A.Inventors: Alfredo Poloni, Luciano Vignolo, Luca Sandrin, Fabio Vecchiet, Matteo Nobile
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Publication number: 20100101294Abstract: A roller guiding system for thin strips (20) at a rolling system outlet which allows a safe guiding without take-off and consequent tipping/folding of the head of the strip and without cobbles even at high feeding speeds. The system of the invention prevents the strip from impacting or sliding on the upper containment devices (8) or on the rollers (4?) by its upwards or downwards movement, thus avoiding possible damages to the surface, such as scratches or lines. Furthermore, such a guiding system acts on the mechanical-aerodynamic phenomenon which causes instability in the head moving by making a self-centering guiding system which is thus suitable for improving the winding quality of the coil itself.Type: ApplicationFiled: April 17, 2008Publication date: April 29, 2010Inventors: Alfredo Poloni, Luciano Vignolo, Luca Sandrin, Fabio Vecchiet, Matteo Nobile