Quality prediction of center segregation in continuous casting billet based on improved combination method

In continuous casting, it is very important to predict the center segregation of billet in time for ensuring continuous production, improving product quality and reducing production costs. The data in the process of production is used to establish the quality prediction model of center segregation in continuous casting billet, which is based on the improved combination method and ladder parameter table. Improved combination method is adopted to get the weights of the processing parameters on center segregation, and ladder parameter table is used to analyze the level of center segregation caused by the parameters. Some samples of #65 steel are selected for testing the quality prediction model. The result shows that the accuracy of this model is 82.5%, which can meet the requirements of the elementary prediction.