公开(公告)号：US12121946B2

公开(公告)日：2024-10-22

申请号：US17569099

申请日：2022-01-05

Applicant: Primetals Technologies Japan, Ltd.

Inventor： Akira Sako ,  Jiro Hasai ,  Tadashi Hiura ,  Taroh Satoh ,  Toru Takeguchi ,  Hideaki Furumoto ,  Shinya Kanemori ,  Hideki Tonaka

IPC: B21B37/18 ,  B21B1/02 ,  B21B13/02 ,  B21B31/20 ,  B21B31/32 ,  B21B37/28 ,  B21B37/62 ,  B21B38/00 ,  B21B38/10

CPC classification number: B21B37/18 ,  B21B37/28 ,  B21B31/20 ,  B21B38/00 ,  B21B2261/046

Abstract: There are provided a work-side position measurement device and a drive-side position measurement device for directly measuring positions of roll chocks in a rolling direction, and positions of upper and lower working rolls and upper and lower backup rolls in the rolling direction are adjusted to zero point or predetermined positions. Alternatively, a change caused in the strip wedge due to a minute crossing of the axes of working rolls and backup rolls is calculated, and the quantities of leveling of a work-side rolling reduction cylinder device and a drive-side rolling reduction cylinder device are adjusted to make the strip edge equal to or smaller than a predetermined value. Accordingly, the bilateral asymmetry (strip wedge) of the thickness distribution of a rolled material is easily adjusted even in the event that the positions of the roll chocks in the rolling direction are changed due to wear on various components.

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：US11247253B2

公开(公告)日：2022-02-15

申请号：US15766091

申请日：2016-11-07

Applicant: Primetals Technologies Japan, Ltd.

Inventor： Akira Sako ,  Jiro Hasai ,  Tadashi Hiura ,  Taroh Satoh ,  Toru Takeguchi ,  Hideaki Furumoto ,  Shinya Kanemori ,  Hideki Tonaka

IPC: B21B37/18 ,  B21B37/28 ,  B21B31/20 ,  B21B38/00

Abstract: There are provided a work-side position measurement device and a drive-side position measurement device for directly measuring positions of roll chocks in a rolling direction, and positions of upper and lower working rolls and upper and lower backup rolls in the rolling direction are adjusted to zero point or predetermined positions. Alternatively, a change caused in the strip wedge due to a minute crossing of the axes of working rolls and backup rolls is calculated, and the quantities of leveling of a work-side rolling reduction cylinder device and a drive-side rolling reduction cylinder device are adjusted to make the strip edge equal to or smaller than a predetermined value. Accordingly, the bilateral asymmetry (strip wedge) of the thickness distribution of a rolled material is easily adjusted even in the event that the positions of the roll chocks in the rolling direction are changed due to wear on various components.