Calculation Model of Gear Steel Hardenability Based on Nonlinear Equation
HUANG Tao1，SONG Man-tang1，LIANG Qi-hua1，GONG Wei2
（1. Benxi Iron and Steel Group， Special Steel Works， Benxi 117000， Liaoning， China 2. School of Materials and Metallurgy, Northeastern University， Shenyang 110819， Liaoning， China）
Abstract：The method of nonlinear regression equations has been chosen to establish a mathematical model which is modified through the hardenability data of actual production of the gear steels．Based on the model，a prediction platform was developed to calculate the hardenability of gear steels，which can calculate the hardness of random Jominy distance according to chemical composition and grain size．The forecast accuracy is better than that of the normal multiple linear regression equation．
2014, Vol. 24 
