Coiling Temperature Control in Hot Strip Mill

Abstract

Coiling temperature is one of the most significant factors in products of hot strip mill to determine material properties such as strength, toughness of steel, so it is very important to achieve accurate coiling temperature control (CTC). Usually there are a few pyrometers on the run out table in hot strip mill, therefore temperature model and its adapting system have large influences on the accuracy of CTC. Also unscheduled change of rolling speed has a bad effect to keep coiling temperature as its target. Newly developed CTC system is able to get very accurate coiling temperature against uncertain factors and disturbances by adopting easily identified temperature model, learning method and dynamic set up function. The features of the CTC system are discussed with actual data, and the effectiveness of the system is shown by actual control results.

Prediction of properties over the length of the coil during thermo-mechanical processing using DNN

“…Yahiro et al [27] presented a self-adapting model which predicted the coil temperature and iteratively approximated the amount of water flow required to achieve that temperature.…”