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公开(公告)号：WO2016006159A8
公开(公告)日：2016-12-29
申请号：PCT/JP2015002851
申请日：2015-06-05
Applicant: JFE STEEL CORP
Inventor： TAKEDA GENTARO , MIYAKE MASARU , MAKIMIZU YOICHI , SUZUKI YOSHITSUGU , SUZUKI YOSHIKAZU
CPC classification number: C21D9/561 , C21D9/56 , C22C38/00 , C22C38/04 , C23C2/02 , C23C2/06 , C23C2/28 , C23C2/40
Abstract: Provided is a method of producing a galvannealed steel sheet, the production method being capable of achieving a favorable plated appearance and of suppressing reductions in tensile strength. This method of producing a galvannealed steel sheet has: a step wherein a steel strip is transported through the inside of an annealing furnace, in order through a heating zone that includes a direct-firing-type furnace, a soaking zone, and a cooling zone, and the steel strip is annealed; a step wherein, after being discharged from the cooling zone, the steel strip is hot-dip galvanized; and a step wherein the zinc-plating applied to the steel strip is heated and alloyed. The production method is characterized in that a mixed gas that includes a humidified gas and a dry gas is supplied to the inside of the soaking zone from at least one gas supply port that is provided to the height-direction lower half of the soaking zone, and in that the dew point measured in the height-direction upper fifth of the soaking zone and the dew point measured in the height-direction lower fifth are both -20-0 ℃.
Abstract translation: 提供一种合金化热浸镀锌钢板的制造方法，其制造方法能够获得良好的镀层外观和抑制拉伸强度的降低。 该合金化热浸镀锌钢板的制造方法具有以下步骤：通过包括直接燃烧型炉，均热区和冷却区的加热区，通过退火炉的内部输送钢带 ，钢带退火; 在从冷却区排出后，对钢带进行热浸镀锌的工序; 以及施加到钢带上的镀锌和合金化的步骤。 该制造方法的特征在于，从设置在均热区域的高度方向下半部的至少一个供气口将含有加湿气体和干燥气体的混合气体供给到均热区域的内部， 并且在均热区域的高度方向上方测得的露点和在高度方向下降到第五点的露点都为-20℃。
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公开(公告)号：WO2016110910A8
公开(公告)日：2017-05-11
申请号：PCT/JP2015006328
申请日：2015-12-18
Applicant: JFE STEEL CORP
Inventor： TAKEDA GENTARO , MIYAKE MASARU , MAKIMIZU YOICHI , SUZUKI YOSHITSUGU
CPC classification number: C21D1/74 , C21D1/76 , C21D9/56 , C23C2/02 , C23C2/06 , C23C2/28 , C23C2/40 , F27B9/045 , F27B9/28 , F27D7/02 , F27D7/06
Abstract: The present invention provides a method of producing a galvannealed steel sheet with which plating adhesion is high and a favorable plated appearance can be obtained even when galvannealing is performed on a steel strip comprising 0.2 mass% Si or more and with which reduction of tensile strength can be limited by lowering alloying temperature. In the present invention, dry gas and a mixed gas of humidified gas with dry gas are supplied to the soaking zone of an annealing furnace. By supplying the mixed gas at suitable times from a position in the lower half of the soaking zone while supplying the dry gas at suitable times from near an upper hearth roll of the soaking zone and discharging gas in the furnace at suitable times from a gas discharge port located above the upper hearth roll, the dew point of at least the uppermost area in the soaking zone is controlled to −20°C to 0°C.
Abstract translation: 本发明提供一种即使对含有0.2质量％以上的Si的钢带实施合金化处理也能够获得良好的镀覆外观，且能够降低拉伸强度的合金化热镀锌钢板的制造方法 受限于降低合金化温度。 在本发明中，将干燥气体和加湿气体与干燥气体的混合气体供应到退火炉的均热区。 通过在适当的时间从保温区下半部分的位置供应混合气体，同时从保温区的上炉膛辊附近的适当时间供应干燥气体，并且在适当的时间从气体排出口 位于上炉膛辊上方的出口，至少将保温区最上部的露点控制在-20℃至0℃。
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公开(公告)号：AU2016252193A1
公开(公告)日：2017-10-26
申请号：AU2016252193
申请日：2016-04-13
Applicant: JFE STEEL CORP
Inventor： TERASAKI YU , TAKAHASHI HIDEYUKI , MIYAKE MASARU , KOYAMA TAKUMI , YASUFUKU YUSUKE , INABA ATSUSHI
Abstract: Provided is an apparatus for producing a molten metal plated steel strip allowing a high-quality molten metal plated steel strip to be stably produced and preventing occurrence of defects on plated surfaces due to splash or top dross even when various changes are made to operational conditions. An apparatus 100 for producing a molten metal plated steel strip according to the present invention is characterized by having: a pair of gas wiping nozzles 20A, 20B for adjusting the amount of deposits on both surfaces of a steel strip P; a gas supply mechanism 22; a gas temperature adjusting mechanism 24; a baffle plate 26 disposed near an end section in the width direction of the steel strip P and located on a plane extended from the steel strip; a temperature sensor 28 disposed on at least one surface thereof; and a control unit 30 that controls the gas temperature adjusting mechanism 24 on the basis of an output of the temperature sensor 28.
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公开(公告)号：MX373025B
公开(公告)日：2025-03-05
申请号：MX2017012192
申请日：2017-09-25
Applicant: JFE STEEL CORP
Inventor： TAKEDA GENTARO , MIYAKE MASARU
IPC: C23C2/02 , C21D1/76 , C21D9/46 , C21D9/56 , C22C18/04 , C22C38/00 , C22C38/14 , C23C2/28 , C23C2/40
Abstract: Se proporciona un aparato de galvanización por inmersión en caliente continua que puede inhibir la absorción de rodillos en una zona de homogenización causada por condensación o similar en un tubo de gas humidificado, y con el cual se puede obtener un aspecto de recubrimiento favorable. El aparato de galvanización por inmersión en caliente continua incluye un horno de recocido en el cual una zona de calentamiento, una zona de homogeneización, y una zona de enfriamiento están dispuestas en este orden, y una línea de galvanización por inmersión en caliente adyacente a la zona de enfriamiento. Los gases suministrados a la zona de homogeneización (12) son: gas mixto obtenido al mezclar gas que se humidifica mediante un dispositivo de humidificación (50) y gas que no se ha humidificado mediante el dispositivo de humidificación; y gas seco que no se humidifica mediante el dispositivo de humidificación. El aparato de galvanización por inmersión en caliente continua incluye un dispositivo de drenaje (80) para drenar agua de circulación del dispositivo de humidificación (50) cuando el gas mixto no se suministra a la zona de homogeneización (12).
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公开(公告)号：IN761KON2014A
公开(公告)日：2015-10-02
申请号：IN761KON2014
申请日：2014-04-04
Applicant: JFE STEEL CORP
Inventor： SASAKI SHUNSUKE , MIYAKE MASARU , KIMURA YUKIO
Abstract: According to conventional technology a slab cannot be formed into desired target dimensions with high productivity while minimizing yield loss and an increase in thickness due to unsteady deformation of front and rear ends during slab width reduction. Slab shape control equipment includes a horizontal rolling machine (1) disposed on the upstream side or an entry side horizontal rolling machine (1) and an exit side horizontal rolling machine (3) disposed on the upstream side and the downstream side respectively of a width press machine (2) for slab width reduction with respect to the direction of slab transportation. By using the equipment a single hot slab (10) is subjected to thickness rolling by the horizontal rolling machine (1) or the horizontal rolling machine (1) and the horizontal rolling machine (3) and to width reduction by the width press machine (2) simultaneously.
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Patent Agency Ranking
公开(公告)号：MX380408B
公开(公告)日：2025-03-12
申请号：MX2017000001
申请日：2017-01-04
Applicant: JFE STEEL CORP
Inventor： TAKEDA GENTARO , MIYAKE MASARU , MAKIMIZU YOICHI , SUZUKI YOSHIKAZU , SUZUKI YOSHITSUGU
Abstract: Se proporciona un método de producción de una lámina de acero galvano-recocida mediante el cual se puede obtener aspecto de recubrimiento favorable sin una disminución en la tensión de rotura. El método de producción de una lámina de acero galvano-recocida incluye: recocer una banda de acero mediante el transporte de la banda de acero a través de una zona de calentamiento que incluye un horno de fuego directo, una zona de homogeneización, y una zona de enfriamiento en este orden en un horno de recocido; galvanizar por inmersión en caliente la banda de acero descargada desde la zona de enfriamiento; y alear en caliente un recubrimiento galvanizado que se forma sobre la banda de acero. Gas mixto de gas humidificado y gas seco se suministra en la zona de homogeneización desde por lo menos un orificio de suministro de gas situado en una región de 1/2 de la parte inferior de la zona de homogeneización en una dirección de la altura de modo que un punto de rocío medido en una región de 1/5 de la parte superior de la zona de homogeneización en la dirección de la altura y un punto de rocío medido en una región de 1/5 de la parte inferior de la zona de homogeneización en la dirección de la altura ambos son -20 °C o superior y 0 °C o inferior.
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公开(公告)号：AU2016252193B2
公开(公告)日：2018-10-18
申请号：AU2016252193
申请日：2016-04-13
Applicant: JFE STEEL CORP
Inventor： TERASAKI YU , TAKAHASHI HIDEYUKI , MIYAKE MASARU , KOYAMA TAKUMI , YASUFUKU YUSUKE , INABA ATSUSHI
Abstract: Provided is an apparatus for producing a molten metal plated steel strip allowing a high-quality molten metal plated steel strip to be stably produced and preventing occurrence of defects on plated surfaces due to splash or top dross even when various changes are made to operational conditions. An apparatus 100 for producing a molten metal plated steel strip according to the present invention is characterized by having: a pair of gas wiping nozzles 20A, 20B for adjusting the amount of deposits on both surfaces of a steel strip P; a gas supply mechanism 22; a gas temperature adjusting mechanism 24; a baffle plate 26 disposed near an end section in the width direction of the steel strip P and located on a plane extended from the steel strip; a temperature sensor 28 disposed on at least one surface thereof; and a control unit 30 that controls the gas temperature adjusting mechanism 24 on the basis of an output of the temperature sensor 28.
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公开(公告)号：EP3225705A4
公开(公告)日：2017-10-25
申请号：EP15862866
申请日：2015-09-01
Applicant: JFE STEEL CORP
Inventor： YOSHIMOTO SOSHI , MIYAKE MASARU , TAKEDA GENTARO
CPC classification number: C21D9/563 , C21D1/18 , C21D1/63 , C21D1/667 , C21D9/46 , C21D9/562 , C21D9/573 , C21D9/5735 , C21D9/5737 , C21D2211/008
Abstract: Provided are a method for manufacturing a metal sheet and a rapid quenching unit, the method and the rapid quenching unit being capable of effectively suppressing shape defects caused in the metal sheet during rapid quenching. In a method for manufacturing a metal sheet according to the present invention, supposing that the Ms temperature of the metal sheet is T Ms (°C) and the Mf temperature thereof is T Mf (°C), the metal sheet in rapid quenching is pinched between a pair of pinch rolls in the range where the temperature of the metal sheet is from (T Ms + 150) (°C) to (T Mf - 150) (°C).
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9.发明公开PRODUCTION METHOD FOR ALLOYED HOT-DIP-GALVANIZED STEEL SHEET 审中-公开HERSTELLUNGSVERFAHRENFÜRLEGIERTES FEUERVERZINKTES STAHLBLECH
公开(公告)号：EP3168321A4
公开(公告)日：2017-05-31
申请号：EP15818936
申请日：2015-06-05
Applicant: JFE STEEL CORP
Inventor： TAKEDA GENTARO , MIYAKE MASARU , MAKIMIZU YOICHI , SUZUKI YOSHITSUGU , SUZUKI YOSHIKAZU
CPC classification number: C21D9/561 , C21D9/56 , C22C38/00 , C22C38/04 , C23C2/02 , C23C2/06 , C23C2/28 , C23C2/40
Abstract: Provided is a method of producing a galvannealed steel sheet, the production method being capable of achieving a favorable plated appearance and of suppressing reductions in tensile strength. This method of producing a galvannealed steel sheet has: a step wherein a steel strip is transported through the inside of an annealing furnace, in order through a heating zone that includes a direct-firing-type furnace, a soaking zone, and a cooling zone, and the steel strip is annealed; a step wherein, after being discharged from the cooling zone, the steel strip is hot-dip galvanized; and a step wherein the zinc-plating applied to the steel strip is heated and alloyed. The production method is characterized in that a mixed gas that includes a humidified gas and a dry gas is supplied to the inside of the soaking zone from at least one gas supply port that is provided to the height-direction lower half of the soaking zone, and in that the dew point measured in the height-direction upper fifth of the soaking zone and the dew point measured in the height-direction lower fifth are both -20-0 °C.
Abstract translation: 提供一种合金化热浸镀锌钢板的制造方法，该制造方法能够实现良好的镀覆外观，抑制拉伸强度的降低。 该合金化热浸镀锌钢板的制造方法具有以下工序：将钢带依次通过由直烧型炉，均热带，冷却带构成的加热带在退火炉内输送 ，钢带退火; 从冷却区排出钢带后进行热浸镀锌的工序; 以及施加到钢带上的镀锌被加热并合金化的步骤。 该制造方法的特征在于，从设置于均热带的高度方向下半部的至少一个气体供给口向均热带的内部供给包含加湿气体和干燥气体的混合气体， 并且在均热带的高度方向上部五分之一处测量的露点和在高度方向五分之一处测量的露点都是-20℃〜0℃。
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公开(公告)号：EP3287541A4
公开(公告)日：2018-04-04
申请号：EP16782783
申请日：2016-04-13
Applicant: JFE STEEL CORP
Inventor： TERASAKI YU , TAKAHASHI HIDEYUKI , MIYAKE MASARU , KOYAMA TAKUMI , YASUFUKU YUSUKE , INABA ATSUSHI
Abstract: An apparatus for producing a hot-dip metal coated steel strip by which a hot-dip metal coated steel strip of high quality can be stably produced by preventing coated surface defects caused by splashing or top dross even in the case where operation conditions vary is provided. An apparatus 100 for producing a hot-dip metal coated steel strip includes: a pair of gas wiping nozzles 20A and 20B that adjust a coating weight on both surfaces of a steel strip P; a gas supply mechanism 22; a gas temperature adjusting mechanism 24; a baffle plate 26 located near a transverse edge of the steel strip P and in a plane extended from the steel strip; a temperature sensor 28 located on at least one surface of the baffle plate 26; and a controller 30 that controls the gas temperature adjusting mechanism 24 based on an output of the temperature sensor 28.
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