公开(公告)号：US11478833B2

公开(公告)日：2022-10-25

申请号：US16478767

申请日：2017-02-20

Applicant: PRIMETALS TECHNOLOGIES JAPAN, LTD.

Inventor： Takashi Yonekura ,  Masao Tambara ,  Masashi Yoshikawa

IPC: B21D1/00 ,  B21C51/00 ,  B65H23/34

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.

公开(公告)号：US09951407B2

公开(公告)日：2018-04-24

申请号：US15311031

申请日：2015-04-23

Applicant: PRIMETALS TECHNOLOGIES JAPAN, LTD.

Inventor： Takashi Yonekura ,  Masao Tanbara ,  Masashi Yoshikawa

IPC: C23C2/20 ,  B05C11/02 ,  B05C11/06 ,  C23C2/18 ,  B05C9/08 ,  C23C2/00

CPC classification number: C23C2/20 ,  B05C9/08 ,  B05C11/02 ,  B05C11/06 ,  C23C2/003 ,  C23C2/18

Abstract: The present invention reduces the amount of gas consumed, edge-overcoating and splashing and adjusts plating thickness with high precision by providing a wiping nozzle with: thin plates, which are each inserted into a lip from the entrances to the lip for a specified distance to the inside of the two ends of the lip in the sheet width direction in order to seal the gas jet where the thin plates are inserted, and which are movable in the sheet width direction of the lip; and ropes extending in the sheet width direction of the lip so as to track the movements of the thin plates and seal the gas jet in a specified range.

公开(公告)号：US11248288B2

公开(公告)日：2022-02-15

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

IPC: C23C2/20 ,  C23C2/00 ,  C23C2/06 ,  B05C11/10 ,  B05C11/06 ,  B05D1/18 ,  B05D3/00 ,  G05D5/03 ,  B05B12/08 ,  B05C3/12 ,  B05D3/04

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.

公开(公告)号：US10815559B2

公开(公告)日：2020-10-27

申请号：US15756707

申请日：2017-02-20

Applicant: PRIMETALS TECHNOLOGIES JAPAN, LTD.

Inventor： Takashi Yonekura ,  Masao Tambara ,  Masashi Yoshikawa ,  Shinji Nanba

IPC: C23C2/20 ,  C23C2/40 ,  C23C2/16 ,  C23C2/18

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).