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公开(公告)号：US20210002774A1
公开(公告)日：2021-01-07
申请号：US16982905
申请日：2018-04-16
Applicant: PRIMETALS TECHNOLOGIES JAPAN, LTD.
Inventor： Kosei TSUJI , Ryusuke NAKATSUKA , Masashi YOSHIKAWA , Shinji NANBA
Abstract: A pickling facility includes: a pickling tank for storing an acid solution; a conveyance part for continuously conveying a steel plate immersed in the acid solution; a measurement part for measuring at least one parameter which has a correlation with a heat transfer coefficient between the acid solution and a reference surface disposed in the acid solution so as to face the steel plate; and a conveyance speed decision part configured to decide a conveyance speed of the steel plate conveyed by the conveyance part, on the basis of a measurement result of the at least one parameter.
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公开(公告)号：US20240287685A1
公开(公告)日：2024-08-29
申请号：US18571939
申请日：2021-07-09
Applicant: PRIMETALS TECHNOLOGIES JAPAN, LTD.
Inventor： Naohiko MATSUDA , Takashi NAKANO , Yuki MAEHASHI , Shinji NAMBA , Masashi YOSHIKAWA , Kosei TSUJI , Takahiro YAGI , Ryusuke NAKATSUKA
IPC: C23G3/02
CPC classification number: C23G3/025
Abstract: A pickling apparatus for pickling a strip of metal being conveyed is equipped with: a pickling tank for storing an acid solution; a surrounding part disposed in the pickling tank so as to surround the strip immersed in the acid solution in the pickling tank; and an oxidant supply part for supplying a liquid oxidant toward an inside of the surrounding part.
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3.发明申请公开(公告)号：US20200261957A1
公开(公告)日：2020-08-20
申请号：US16757598
申请日：2017-11-30
Applicant: PRIMETALS TECHNOLOGIES JAPAN, LTD.
Inventor： Takashi YONEKURA , Masao TAMBARA , Masashi YOSHIKAWA
Abstract: A warpage correction apparatus for a metal strip to be used in a continuous plating facility for the metal strip includes a sink roll disposed downstream of a fixed roll, configured to change the conveying direction of the metal strip, with respect to a conveying direction of the metal strip and inside a molten metal pot for plating, and a correction roll disposed between the fixed roll and the sink roll and configured to correct warpage of the metal strip. A ratio D3/D1 of a diameter D3 of the sink roll to a diameter D1 of the fixed roll is not less than 1.5.
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公开(公告)号：US20220154351A1
公开(公告)日：2022-05-19
申请号：US17439720
申请日：2019-03-22
Applicant: PRIMETALS TECHNOLOGIES JAPAN, LTD.
Inventor： Kosei TSUJI , Ryusuke NAKATSUKA , Takahiro YAGI , Masashi YOSHIKAWA , Hideaki TAKATANI , Toyoaki YASUI , Takuya HIRATA
Abstract: An acid solution preparation device is an acid solution preparation device for preparing an acid solution used for pickling of a steel plate, the device including a sealed tank for storing the acid solution, a gas supply part for supplying an oxygen-containing gas from outside of the sealed tank to the sealed tank, and a purge part for discharging a gas in the sealed tank to the outside.
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5.发明申请公开(公告)号：US20200047234A1
公开(公告)日：2020-02-13
申请号：US16478767
申请日：2017-02-20
Applicant: PRIMETALS TECHNOLOGIES JAPAN, LTD.
Inventor： Takashi YONEKURA , Masao TAMBARA , Masashi YOSHIKAWA
Abstract: A crossbow correction device 16 for correcting crossbow of a steel strip S by a magnetic force during conveyance includes a plurality of electromagnets 57a to 57d, 67a to 67d arranged in a strip width direction of the steel strip S and facing each other so as to sandwich the steel strip S in a strip thickness direction, a moving mechanism 51 to 54, 61 to 64 capable of moving the electromagnets 57a to 57d, 67a to 67d relative to the steel strip S, and a controller 17 configured to operate the moving mechanism 51 to 54, 61 to 64, based on a current value flowing through the electromagnets 57a to 57d, 67a to 67d.
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Patent Agency Ranking
公开(公告)号：US20180251879A1
公开(公告)日：2018-09-06
申请号：US15756707
申请日：2017-02-20
Applicant: PRIMETALS TECHNOLOGIES JAPAN, LTD.
Inventor： Takashi YONEKURA , Masao TAMBARA , Masashi YOSHIKAWA , Shinji NANBA
Abstract: Provided are a molten metal plating facility and a method with which degradation in the surface quality of a strip can be prevented by preventing the adhesion of splashes. In a molten metal plating facility and a method for plating a strip (S) with molten metal by guiding the strip (S) into a molten metal bath (Mm) and then guiding the strip (S) upward, a pair of wiping nozzles (12a, 12b) disposed so as to face a front surface side and a back surface side of the strip (S) guided upward is used to discharge air streams (Ea, Eb) toward a collision point (A) inside the strip (S) such that the first air streams spread out in a strip width direction of the strip (S), and a pair of outer nozzles (15a, 15b) disposed so as to face a front surface side and a back surface side of an extended plane on an outer side of the strip (S) with respect to the strip width direction, above the wiping nozzles (12a, 12b) and on each of both outer sides of the strip (S) with respect to the strip width direction is used to discharge air streams (Fa, Fb) toward a collision point (B) within the extended plane and below the collision point (A).
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7.发明申请公开(公告)号：US20170009326A1
公开(公告)日：2017-01-12
申请号：US15200858
申请日：2016-07-01
Applicant: PRIMETALS TECHNOLOGIES JAPAN, LTD.
Inventor： Takashi YONEKURA , Masao TANBARA , Masashi YOSHIKAWA
IPC: C23C2/00
Abstract: Each of the moving blocks of the plate crossbow correction device includes distance sensors and electromagnets, and plate crossbow is corrected by adjusting electromagnetic force by the electromagnets in accordance with distances to strips. The moving blocks are movable in the horizontal direction and ratios of moving distances of the moving blocks are adjusted to be constant when seen from a central position.
Abstract translation: 板弩校正装置的每个移动块包括距离传感器和电磁体，并且通过根据与条的距离调整电磁体的电磁力来校正板弩。 移动块在水平方向上是可移动的，并且当从中心位置观察时，移动块的移动距离的比率被调节为恒定。
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公开(公告)号：US20220220619A1
公开(公告)日：2022-07-14
申请号：US17607781
申请日：2020-01-09
Applicant: PRIMETALS TECHNOLOGIES JAPAN, LTD.
Inventor： Kosei TSUJI , Ryusuke NAKATSUKA , Masashi YOSHIKAWA , Takuya HIRATA
Abstract: A method for pickling a steel plate having a first steel plate portion and a second steel plate portion which is connected to a tail end of the first steel plate portion and which requires a longer time for pickling than the first steel plate portion when pickled under the same condition includes: a step of pickling the steel plate by immersing the steel plate in an acid solution in at least one pickling tank while conveying the steel plate; a step of circulating the acid solution, through a circulation line connected to any of the at least one pickling tank, between the pickling tank and an oxidizing device disposed in the circulation line; a step of oxidizing Fe2+ in the acid solution to Fe3+ by the oxidizing device using a gaseous oxidant; and a feeding start step of, upon switching from pickling of the first steel plate portion to pickling of the second steel plate portion, starting feeding of a liquid oxidant for oxidizing Fe2+ in the acid solution to Fe3+ to any of the at least one pickling tank or to the circulation line.
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公开(公告)号：US20200346264A1
公开(公告)日：2020-11-05
申请号：US16757571
申请日：2017-11-24
Applicant: PRIMETALS TECHNOLOGIES JAPAN, LTD.
Inventor： Takashi YONEKURA , Masao TAMBARA , Masashi YOSHIKAWA
Abstract: A shape measurement device for a metal plate includes a plurality of distance sensors including one or more first sensors disposed on a first side and a plurality of second sensors disposed on a second side, of the metal plate with respect to a thickness direction of the metal plate, across a pass line of the metal plate. The one or more first sensors are positioned, with respect to a width direction of the metal plate, between a pair of second sensors disposed adjacent to each other in the width direction.
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公开(公告)号：US20190390315A1
公开(公告)日：2019-12-26
申请号：US16479457
申请日：2017-04-14
Applicant: PRIMETALS TECHNOLOGIES JAPAN, LTD.
Inventor： Takashi YONEKURA , Masao TAMBARA , Masashi YOSHIKAWA , Shinya KANEMORI , Kazuki YOSHIDA
Abstract: When a portion for measuring the plating adhesion amount reaches an upstream side position, plating adhesion amount estimation values are calculated by using a plating adhesion amount estimation expression at positions away from a position that faces the distance sensors, that is, the upstream side position, by strip-width direction distances, of the surfaces of the steel strip. When the portion for measuring the plating adhesion amount reaches a downstream side position, the strip-width direction distances of the plating adhesion amount meters are matched to the strip-width direction distances, and the plating adhesion amount actual measurement values are obtained. The plating adhesion amount estimation expression is corrected on the basis of the differences between the plating adhesion amount estimation values and the plating adhesion amount actual measurement values. Accordingly, the control accuracy of the plating adhesion amount is improved.
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