BEGIN:VCALENDAR
VERSION:2.0
METHOD:PUBLISH
BEGIN:VEVENT
ORGANIZER;CN=ESTAD 2023:mailto:info@metec-estad.com
LOCATION:Room 28
SUMMARY:Process model and control for new era of hot strip rolling
DESCRIPTION:The cutting-edge technologies of process control for the hot strip rolling mill are required to be developed and implemented to automation system. The accurate control contributes to stable rolling operation and higher quality of the products according to the demand of higher strength and lightweight material. We have responded to such demands by applying cutting-edge technologies of process model and control. 
In this paper, we introduce the recent application trend of process model and control technology contributing to hot strip rolling in so-called “conventional mill” line. We focus on technology of strip temperature model and control. A finite difference method (FDM) is applied to calculate the change of strip temperature by each time step and temperature distribution of a strip. The one-dimensional FDM split in thickness has been originally implemented to calculate surface and inside temperature of a strip separately. Nowadays it is also split in width direction to enable to estimate the temperature drop around strip side edge. It is flexible to be switched between one-dimensional and two-dimensional FDM individually for each rougher or finishing mill zone, and run out table cooling zone. The heat energy in a cross section of the strip is kept although the dimension of FDM is switched over. 
Combination of prediction of temperature by two-dimensional FDM model and the control of induction heating device contributes to accurate prediction and control of strip temperature especially at edge part. It may supply a high performance control system to produce uniform material properties of the strip along the horizontal and longitudinal directions. It is useful to monitor the temperature profile by FDM calculation even where a scan pyrometer is not equipped, and to study the rolling process conditions to get uniform material properties.

CLASS:PUBLIC
DTSTART:20230614T145000
DTEND:20230614T151000
END:VEVENT
END:VCALENDAR