Transactions of Materials and Heat Treatment

Title：Technology optimization and finite element analysis on hot-rolled narrow strip steel 500 during roughing rolling

Authors： Zhou Jialin Yan Junlin Lai Chunming Zhou Xuchang

Unit： Wuhan University of Science and Technology Hunan Chemical Vocational Technology College

KeyWords： narrow strip steel roughing mill conjugate hole type rolling rhythm optimization FEM simulation

ClassificationCode：TG335.5+6

year,vol(issue):pagenumber：2016,41(9):139-147

Abstract：

For optimization scheme of the double pass rolling replacing single-pass rolling for Φ650

three-roll roughing mill according to a 500 hot-rolled narrow strip rolling line, the whole

roughing rolling processes of steel Q235B before and after optimization were simulated by

nonlinear finite element software ANSYS/LS-DYNA. Analysis results show that the temperature at

cross-section and the stress and strain distribution after optimization are basically the same

with those before optimization. Temperatures at feature points are in good agreement with the

measured values, and there are double drums at the sides of workpiece of the front five

passes. Because the conjugate hole type is applied, the diameters of up and down groove are

asymmetry, and the stress and strain on the upper surface are slightly larger than that of the

lower surface. Furthermore, the rolling force and rolling part size are compared and analyzed

before and after optimization, and the ability of the main equipment is tested. Optimization

result shows that production capacity increases by 28.47% after optimization.

Funds：

周家林（1966-），男，硕士，副教授颜军琳（1991-），男，硕士研究生

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