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    Brick lining forming method
    4.
    发明授权
    Brick lining forming method 有权

    公开(公告)号：US11708617B2

    公开(公告)日：2023-07-25

    申请号：US16768852

    申请日：2018-11-19

    Applicant: KROSAKIHARIMA CORPORATION

    Inventor： Kazuhiko Takeuchi ,  Satoshi Tsuboi

    IPC: C21B7/06 ,  C21C5/44 ,  F27D1/16 ,  F27D1/04

    CPC classification number: C21B7/06 ,  C21C5/44 ,  F27D1/04 ,  F27D1/16

    Abstract: It is intended to provide a method for forming a brick lining to construct a sidewall of a kiln/furnace, while improving efficiency of brick lining forming work without causing any increase in manufacturing cost of bricks to be used. The brick lining forming method comprises stacking a plurality of tiers of bricks, respectively, on a plurality of tier regions of an inner surface of a hollow approximately cylindrical-shaped peripheral portion of a kiln/furnace to construct a side wall of the kiln/furnace, wherein two or more of the plurality of tier regions are different in terms of pre-lining radius, wherein only bricks identical in terms of taper angle and height dimension are used, except for an adjustment brick, in each of the two or more tier regions different in terms of the pre-lining radius, wherein bricks identical in terms of the taper angle, the height dimension and length dimension, and different in terms of back face width, are used in at least a part of each of the two or more tier regions.

    PLATE HOLDING DEVICE, PLATE DETACHING APPARATUS, PLATE ATTACHING APPARATUS, AND PLATE ATTACHING-DETACHING APPARATUS
    5.
    发明申请
    PLATE HOLDING DEVICE, PLATE DETACHING APPARATUS, PLATE ATTACHING APPARATUS, AND PLATE ATTACHING-DETACHING APPARATUS 有权

    公开(公告)号：US20220097129A1

    公开(公告)日：2022-03-31

    申请号：US17432193

    申请日：2020-03-03

    Applicant: KROSAKIHARIMA CORPORATION

    Inventor： Mamoru YOSHIMURA ,  Junichi FUNATO ,  Yusuke YAMAGUCHI ,  Toshihiro IMAHASE

    IPC: B22D41/34 ,  B22D41/30

    Abstract: Provided are a plate holding device, a plate detaching apparatus, a plate attaching apparatus and a plate attaching-detaching apparatus which are capable of reliably attaching and/or detaching a plate with respect to a plate-receiving metal frame. The plate holding device comprises: a plurality of holding members for holding a plate for a sliding nozzle device; widening and narrowing mechanisms to selectively widen and narrow a distance between the holding members; a pressing unit for pressing a central region of the plate when the plate is held by the holding members; and a force sensor for detecting a force received by the holding members and/or the pressing unit from the held plate. The plate holding device is configured to be mounted to a distal end of a robot arm.

    STOPPER FOR CONTINUOUS CASTING AND CONTINUOUS CASTING METHOD
    6.
    发明申请
    STOPPER FOR CONTINUOUS CASTING AND CONTINUOUS CASTING METHOD 有权

    公开(公告)号：US20220062984A1

    公开(公告)日：2022-03-03

    申请号：US17417461

    申请日：2019-12-18

    Applicant: KROSAKIHARIMA CORPORATION

    Inventor： Shinichi FUKUNAGA ,  Toshio KAKU ,  Hiroki FURUKAWA ,  Takuya OKADA

    IPC: B22D41/18 ,  B22D11/18

    Abstract: The precision of grasping or controlling backpressure around a gas discharge portion in a stopper for continuous casting can be improved with a stopper for continuous casting which includes a cavity for conveying gas in a vertical direction center of the stopper, one or a plurality of gas discharge holes passing through from the cavity to the outside in a distal center or a side surface of a reduced-diameter region including a fitted portion to a lower nozzle, and a pressure control component in a part of an area above the gas discharge hole within the cavity.

    BRICK LINING FORMING METHOD
    7.
    发明申请
    BRICK LINING FORMING METHOD 有权

    公开(公告)号：US20210140002A1

    公开(公告)日：2021-05-13

    申请号：US16768852

    申请日：2018-11-19

    Applicant: KROSAKIHARIMA CORPORATION

    Inventor： Kazuhiko TAKEUCHI ,  Satoshi TSUBOI

    IPC: C21B7/06 ,  C21C5/44 ,  F27D1/16 ,  F27D1/04

    Abstract: It is intended to provide a method for forming a brick lining to construct a sidewall of a kiln/furnace, while improving efficiency of brick lining forming work without causing any increase in manufacturing cost of bricks to be used. The brick lining forming method comprises stacking a plurality of tiers of bricks, respectively, on a plurality of tier regions of an inner surface of a hollow approximately cylindrical-shaped peripheral portion of a kiln/furnace to construct a side wall of the kiln/furnace, wherein two or more of the plurality of tier regions are different in terms of pre-lining radius, wherein only bricks identical in terms of taper angle and height dimension are used, except for an adjustment brick, in each of the two or more tier regions different in terms of the pre-lining radius, wherein bricks identical in terms of the taper angle, the height dimension and length dimension, and different in terms of back face width, are used in at least a part of each of the two or more tier regions.

    MAGNESIA CARBON BRICK AND PRODUCTION METHOD THEREFOR
    9.
    发明申请
    MAGNESIA CARBON BRICK AND PRODUCTION METHOD THEREFOR 审中-公开

    公开(公告)号：US20190248706A1

    公开(公告)日：2019-08-15

    申请号：US16345386

    申请日：2017-10-16

    Applicant: KROSAKIHARIMA CORPORATION ,  NIPPON STEEL CORPORATION

    Inventor： Yuya TOMITA ,  Masato TANAKA ,  Shigeto SAWAI

    IPC: C04B35/043 ,  C04B35/01

    Abstract: Provided are a magnesia carbon brick which does not include graphite yet has excellent spalling and corrosion resistances, and a method for producing thereof. The brick is obtained by adding an organic binder to a refractory raw material mixture followed by kneading, molding, and heat-treating, wherein the mixture includes total 0.1 to 2.0 mass % of pitch and/or carbon black, total 0.1 to 1.0 mass % of aluminum and/or aluminum alloy, 3.0 to 10.0 mass % of magnesia having particle diameter of less than 0.075 mm, and 87.0 to 96.0 mass % of magnesia having particle diameter of 0.075 to 5 mm; and a mass ratio of magnesia having particle diameter of 1 to 5 mm to that of 0.075 to 1 mm is 1.66 to 2.34; graphite is not included therein; and an apparent porosity thereof after heat-treatment under reductive atmosphere at 1400° C. for 3 hours is 8.0% or less.

    Immersion nozzle
    10.
    发明授权
    Immersion nozzle 有权

    公开(公告)号：US10220438B2

    公开(公告)日：2019-03-05

    申请号：US15121180

    申请日：2015-02-05

    Applicant: KROSAKIHARIMA CORPORATION

    Inventor： Takuya Okada ,  Takahiro Kuroda

    IPC: B22D11/103 ,  B22D41/56 ,  B22D41/50 ,  B22D11/10

    Abstract: An immersion nozzle for use with an immersion nozzle replacement apparatus, capable of preventing crack formation due to the presence of a neck region. The immersion nozzle includes a nozzle body, a flange, and a metal casing. The nozzle body is formed such that a region of an outer peripheral surface thereof located above a point of power of an upward supporting force from a supporting device extends vertically up to an upper edge of the nozzle body without any dimensional change with respect to an central axis of an inner bore of the nozzle body. The outer peripheral surface region is not joined to the metal casing.

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