Research on Heat Treatment of High Chromium Cast Iron Modified by Vanadium and Titanium Based on Neural Network Algorithm

The neural network model of heat treatment process for high chromium cast iron modified by vanadium and titanium,which is the structure of 6×24×12×2,was established by the method of neural network algorithm,with vanadium content,titanium content,quenching temperature,tempering cooling mode,tempering temperature and tempering cooling mode as input parameters and with wear resistance and impact toughness as output parameters.The average relative prediction errors of wear resistance and impact toughness were 2.8% and 2.5%,respectively.The neural network model has good prediction ability and high precision.Meanwhile,it has a favorable application effect in heat treatment production line,which could make the impact toughness,average grain size and wear volume of high chromium cast iron modified by vanadium and titanium online,increase by 62%,decrease by 32% and 50%,respectively.