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：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.