To efficiently and accurately obtain a learning term included in an expression for obtaining the rolling reduction position of the next path.
This steel plate rolling control method includes adjusting a gage meter plate thickness Hg of the path and a measured plate thickness H to a cold value or a hot value by predetermined corrections to obtain a difference between both of them, computing the learning term of the next path using a predetermined arithmetic expression based on the difference to obtain the rolling reduction position of the next path using the learning term, and carrying out rolling based on the rolling reduction position. With the use of coefficients used for the predetermined correction, plate thickness temperature distribution is obtained from the surface temperature and plate thickness of the steel plate, and a transformation start temperature is obtained from steel species. The propriety of the generation of transformation is determined for every part in the plate thickness direction, and thermal expansion coefficients is obtained for every part. A thermal expansion coefficient in the whole plate thickness direction is obtained from the thermal expansion coefficients for every part.
| JPS601504 | 【考案の名称】熱間圧延機の板厚制御装置 |
| JPS6277113 | PLATE THICKNESS CONTROL METHOD |
| JPH03281009 | THICKNESS CONTROL METHOD FOR ROLLING MILL |
MIZUTANI YASUSHI
HISATSUNE TAKASHI
