Patent ID: 8108064

Claim:
A system for on-line display of property prediction for hot rolled coils in a hot strip mill comprising: a unit for providing data on rolling schedule with chemistry from the steel making stage; one or more field devices for measuring process parameters during hot rolling; a programmable logic controller for acquiring data of measured parameters from said field devices and transmitting said data parameters to a processor; segment tracking means for converting the measured data from time domain to space domain using segment tracking, wherein a total length of a strip being rolled is divided into a plurality of segments, process history data are tracked and collected in each of the plurality of segments as the strip moves through the strip mill and the process history data are stored as a segmental file; a computation module for processing said segmental file for predicting mechanical properties along the length and through the thickness of the strip being rolled; and a display unit for displaying the average coiling temperature and a plurality of actual values of the coiling temperatures at any point over the length for comparison for determining accuracy and displaying predicted values for each segment, the values being one or more of a cooling temperature, ferrite grain size, yield strength, ultimate tensile strength, percentage elongation and nitrogen in solid solution/precipitate, so preventive and corrective action can be taken during rolling.