Abstract
It is important for hot strip mill to keep finishing mill delivery temperature to it’s target value because of yield strength and tensile strength of rolled strip. We propose a new method for finishing mill delivery temperature control (FDTC) of a hot strip mill using inter stand strip coolant (ISC). FDTC consists of initial setting (before threading) values calculation of ISC flow rate and finishing mill speed, feed forward FDTC (FF-FDTC) and feedback FDTC (FB-FDTC). The mathematical strip temperature model of finishing mill was identified using normal operating data and some tests. Actual mill application with 7 stands finishing mill showed good FDTC results and also it made possible to increase rolling speed which increase production rate.