Title:
STEEL PLATE TEMPERATURE CONTROL DEVICE IN HOT ENDLESS ROLLING LINE
Document Type and Number:
Japanese Patent JP2019209372
Kind Code:
A
Abstract:
To provide the steel plate temperature control device in a hot endless rolling line capable of improving the product quality near the tapered part by appropriately controlling the temperature of the tapered portion of the steel plate when changing the thickness of the steel plate between runs during endless rolling.SOLUTION: When performing the flying thickness change between runs where the plate thickness of the steel plate is changed between runs, the plate thickness calculation processing of tapered portion and the induction heating device output calculation processing are performed. In the tapered portion plate thickness calculation process, the thickness of the tapered portion of the steel plate generated by the plate thickness changing operation through the roughing mill is calculated. In the induction heating device output calculation process, using a map or function that defines the relationship between the steel plate thickness and the induction heating device output to achieve the target temperature or target temperature rise amount, the output of the induction heating device is calculated when the tapered portion passes through the induction heating device, based on the plate thickness of the tapered portion calculated by the taper thickness calculation process.SELECTED DRAWING: Figure 3
Inventors:
SHIMOTANI TOSHIHITO
Application Number:
JP2018109939A
Publication Date:
December 12, 2019
Filing Date:
June 08, 2018
Export Citation:
Assignee:
TOSHIBA MITSUBISHI ELEC IND
International Classes:
B21B37/74; B21B1/00; B21B1/26; B21B37/24; H05B6/06; H05B6/10
Attorney, Agent or Firm:
Mamoru Takada
Hideki Takahashi
Hideki Takahashi