Mathematical expression for hot-rolling loads as a function of steel composition and temperature

Abstract

Although plain carbon steels are produced commercially, few studies seem to attempt to develop a mathematical model for applications in computer-controlled mills. An expression is proposed to calculate hot-rolling loads while rolling in austenitic regions (800-1100 °C) giving a 30% reduction in each pass. L/W=(6-37 × 10-4T) + [(7.9-73 × 10-4T) × C] + [(5.2-51 × 10-4 T) × Si] where L/W-rolling load per unit width (kN/mm) T-mean hot rolling temperature (°C) C and Si-carbon and silicon in steel (wt%) Among common alloying elements, carbon content had a more significant effect on rolling loads than silicon content, and the amount of manganese had practically no effect hence, it is not incorporated in the proposed equation. © 1993 Chapman & Hall.