The steels can obtain better strength and toughness by subsequent air cooling after hot forging or rolling without any heat treatment.
本钢种无需经过任何热处理，经锻轧后空冷就能达到较好的强韧性。
The bend shapes of rail during cooling at air after hot rolling were simulated using the finite element software ANSYS.
应用有限元软件A NSYS模拟了热轧钢轨空冷过程的弯曲变形规律。
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