-
公开(公告)号：US20240392403A1
公开(公告)日：2024-11-28
申请号：US18693688
申请日：2022-10-18
Applicant: JFE STEEL CORPORATION
Inventor： Hirokazu KOBAYASHI , Yukihiro MATSUBARA
Abstract: A method anneals a hot-rolled steel strip contains 1.6 to 5.0 mass % Si for an electrical steel sheet using annealing equipment including a heating zone, a soaking zone, and a cooling zone arranged in this order from the upstream side, a thickness meter and a rapid heating device are arranged on the upstream side of the soaking zone, and the heating temperature of the rapid heating device for the steel strip is determined based on the value of LSD defined by the thickness of the steel strip measured with the thickness meter and the threading speed of the steel strip during annealing as represented by the following Expression (1): LSD=t×LS . . . (1), where t is the thickness (mm) of the steel strip, and LS is the threading speed (m/min) of the steel strip.
-
公开(公告)号：US20240360530A1
公开(公告)日：2024-10-31
申请号：US18682680
申请日：2022-07-29
Applicant: JFE STEEL CORPORATION
Inventor： Soshi YOSHIMOTO , Hirokazu KOBAYASHI
CPC classification number: C21D9/0062 , C21D1/18 , C21D6/005 , C21D6/008 , C21D9/46 , C22C38/002 , C22C38/02 , C22C38/04
Abstract: A metal-sheet quenching apparatus that cools a metal sheet while conveying the metal sheet. The metal-sheet quenching apparatus includes a cooling device that cools a metal sheet that is conveyed, restraining rolls that convey the metal sheet cooled by the cooling device while restraining the metal sheet in the thickness direction, a roll moving device that moves the restraining rolls in the conveyance direction of the metal sheet, and a movement control device that controls the operation of the roll moving device to adjust the position of the restraining rolls.
-
公开(公告)号：US20160030968A1
公开(公告)日：2016-02-04
申请号：US14772702
申请日：2014-03-04
Applicant: JFE STEEL CORPORATION
Inventor： Hirokazu KOBAYASHI , Masayasu UENO , Junichi TORIU
CPC classification number: B05C1/0817 , B05C1/0808 , B05C1/083 , B05C1/0834 , B05D1/28 , B05D7/14 , B05D2202/10 , B05D2252/02 , C21D8/1277 , C21D8/1288 , C25F3/06 , C25F3/14 , Y02P10/212
Abstract: A coating device includes: a first roll including a roll surface on which an application liquid is deposited; a first scratch off member configured to scratch off the application liquid from the roll surface of the first roll; a second roll including a roll surface configured to contact with the roll surface of the first roll, wherein the second roll is configured to rotate in a rotation direction opposite to a rotation direction of the first roll, the application liquid is transferred from the roll surface of the first roll to the roll surface of the second roll, and the second roll is configured to transfer the transferred application liquid to a steel strip; and a second scratch off member configured to scratch off the application liquid from the roll surface of the second roll.
Abstract translation: 涂覆装置包括：第一辊，其包括其上沉积有施加液体的辊表面; 第一刮除构件，构造成从第一辊的辊表面刮除施加液体; 第二辊，其包括被配置为与所述第一辊的辊表面接触的辊表面，其中所述第二辊被构造成沿与所述第一辊的旋转方向相反的旋转方向旋转，所述涂布液从所述辊表面 的第一辊到第二辊的辊表面，并且第二辊被配置成将转移的涂布液转移到钢带上; 以及第二刮擦构件，其构造成从第二辊的辊表面刮除施加液体。
-
公开(公告)号：US20250129443A1
公开(公告)日：2025-04-24
申请号：US18689962
申请日：2022-09-12
Applicant: JFE STEEL CORPORATION
Inventor： Soshi YOSHIMOTO , Hirokazu KOBAYASHI
Abstract: A quenching apparatus that is configured to cool a metal sheet, the quenching apparatus including: a cooling device that includes a plurality of jet nozzles that is configured to spray a cooling fluid onto a front surface and a back surface of the metal sheet; and a flow rate adjustment processor that that is configured to set a flow rate of the cooling fluid that is sprayed from the plurality of jet nozzles onto the front surface and the back surface of the metal sheet based on a shape of the metal sheet before quenching.
-
公开(公告)号：US20200038905A1
公开(公告)日：2020-02-06
申请号：US16487956
申请日：2018-02-27
Applicant: JFE STEEL CORPORATION
Inventor： Satoki YASUHARA , Hirokazu KOBAYASHI , Yuhei IWAMI
Abstract: Adhesion of particles having a large particle size contained in the slurry to a surface of a strip member is suppressed. A slurry application method includes: spraying a slurry from a nozzle onto one or both of a traveling strip member and a roll; and applying the slurry to a surface of the strip member by pressing the roll against the surface of the strip member, wherein a spray angle θ is set to 0° or more and 50° or less, a distance d in a conveyance direction of the strip member between an intersection point P1 and a rotation center P2 of the roll is 100 mm or less, and a height h from the surface of the strip member to the intersection point P1 is ½ or less of a diameter of the roll.
-
Patent Agency Ranking
公开(公告)号：US20250129445A1
公开(公告)日：2025-04-24
申请号：US18689954
申请日：2022-09-12
Applicant: JFE STEEL CORPORATION
Inventor： Soshi YOSHIMOTO , Hirokazu KOBAYASHI
Abstract: A quenching apparatus that is configured to cool a metal sheet, the quenching apparatus including: a cooling device that is configured to perform quenching by cooling the metal sheet with a cooling fluid; a plurality of shape correction rolls that includes at least a front shape correction roll and a back shape correction roll that are configured to be respectively provided at a front surface and a back surface of the metal sheet and press, in a thickness direction of the metal sheet, the metal sheet before being quenched; and a pressing processor that is configured to set, based on a shape of the metal sheet before quenching, a pressing quantity of each shape correction roll of the plurality of shape correction rolls.
-
7.发明申请公开(公告)号：US20250034673A1
公开(公告)日：2025-01-30
申请号：US18715826
申请日：2022-07-28
Applicant: JFE Steel Corporation
Inventor： Hirokazu KOBAYASHI , Gentaro TAKEDA , Munesuke SUZUKI , Kazuki OKAMOTO , Hidenori SHIMADA
Abstract: An apparatus for manufacturing a steel strip, includes: a first water tank part that stores cooling water for immersing and cooling a steel strip; a water cooling nozzle unit that is provided in the first water tank part and injects cooling water to a surface of the steel strip; a second water tank part connected to the first water tank part through a joining port; an opening and closing door that opens and closes the joining port; and a conveyance control part that conveys the water cooling nozzle unit such that the water cooling nozzle unit passes through the joining port and is positioned at either a cooling water injection position inside the first water tank part or a non-water cooling standby position inside the second water tank part.
-
公开(公告)号：US20240360528A1
公开(公告)日：2024-10-31
申请号：US18683982
申请日：2022-07-29
Applicant: JFE STEEL CORPORATION
Inventor： Soshi YOSHIMOTO , Hirokazu KOBAYASHI
CPC classification number: C21D1/63 , C21D1/22 , C21D1/667 , C21D9/46 , C23C2/06 , C25D3/22 , C21D2211/008
Abstract: A metal-sheet quenching apparatus cools a metal sheet while conveying the metal sheet and includes a cooling tank in which a cooling fluid is to be stored and the metal sheet is immersed in the cooling fluid to be cooled; restraining rolls that are installed inside the cooling tank and convey the metal sheet that has been cooled in the cooling tank while restraining the metal sheet in the thickness direction; a water-level adjustor that adjusts the height of a fluid surface of the cooling fluid inside the cooling tank; and a position control device that adjusts the height of the fluid surface of the cooling fluid inside the cooling tank by controlling the operation of the water-level adjustor.
-
9.发明申请公开(公告)号：US20200232082A1
公开(公告)日：2020-07-23
申请号：US16486839
申请日：2018-02-09
Applicant: JFE STEEL CORPORATION
Inventor： Hirokazu KOBAYASHI
Abstract: The disclosure provides a fully new method for hot-dip metal coating treatment, as a method for treating surfaces of a metal strip by hot-dip metal coating, by which inherent issues in conventional immersion coatings and spray coatings are avoided. In the disclosed method for hot-dip metal coating treatment, a surface of a metal strip is coated by discharging a droplet of a molten metal toward the surface of the metal strip, using a nozzle system configured to discharge the droplet of the molten metal from a nozzle due to an action of the Lorentz force generated on the molten metal by sending an electric current to the molten metal in a chamber, the chamber being applied with magnetic flux in a given direction, while the electric current sent in a direction perpendicular to the given direction.
-
10.发明申请公开(公告)号：US20180119242A1
公开(公告)日：2018-05-03
申请号：US15529141
申请日：2015-12-10
Applicant: JFE STEEL CORPORATION
Inventor： Hirokazu KOBAYASHI
CPC classification number: C21D8/1294 , B23K26/082 , B23K26/0846 , B23K26/18 , B23K26/364 , B23K26/40 , B23K2101/16 , B23K2103/04 , C21D8/12 , C21D8/1255 , C21D10/00 , C21D2201/05 , C25F3/06 , C25F3/14 , G03F7/40 , H01F1/16
Abstract: A resist coating for etching use which enables high speed and high accuracy patterning is provided by applying, to a cold rolled steel strip, a positive resist ink which solubilizes upon exposure to light; then drying the positive resist ink to form a resist coating; then scanning a laser beam converged in a point shape in the width direction of the cold rolled steel strip to form a photosensitive portion; and then removing the photosensitive portion of the resist film with a developing solution. Subsequently, by dissolving and removing by etching a portion of the steel strip below the removed portion of the resist coating, a fine and uniform linear groove can be formed in a surface of the steel strip.
-
-
-
-
-
-
-
-
-
Search Results
11
records
(took 0.034 seconds)
