Title:
圧延機及び圧延機の制御方法
Document Type and Number:
Japanese Patent JP6832309
Kind Code:
B2
Abstract:
A rolling mill includes a roll pair, having first and second rolls, for rolling a bar steel, and first and second hydraulic cylinders for moving the first roll relative to the second roll, the first and second hydraulic cylinders being respectively connected to first and second supporting portions rotatably supporting the first roll at both ends thereof. A rolling area for rolling the bar steel, which is set as a partial continuous area in the longitudinal direction of the roll pair, is positioned so that distances from the rolling area to the supporting portions differ from each other, and the rolling mill includes: a distance sensor to measure a roll deflection in the rolling area of at least one of the rolls; and a controller to control the amount of depression of the hydraulic cylinders based on a detection value of the distance sensor.
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Inventors:
Rikizo Nakatani
Yasuhiko Maruyama
Tomohiro Kudo
Yasuhiko Maruyama
Tomohiro Kudo
Application Number:
JP2018059550A
Publication Date:
February 24, 2021
Filing Date:
March 27, 2018
Export Citation:
Assignee:
Steel Plantech Co., Ltd.
International Classes:
B21B37/58; B21B38/12; B21C51/00
Domestic Patent References:
| JP49074652A | ||||
| JP4367306A | ||||
| JP10166001A | ||||
| JP9295021A |
Attorney, Agent or Firm:
Isshiki International Patent Service Corporation