以某国产汽车上的B柱为例，利用有限元软件对不同厚度的板坯在空冷与模冷状态下的温降进行数值计算。为保证生产的工件达到性能要求，根据温降曲线，确定板坯从加热炉出来后的运输时间，滑块空程下行时间，以及成形和保压淬火时间。%The paper takes a domestic car B-pillar for example to carry our numerical calculation with finite element software for the temperature drop of blanks in different thicknesses under air cooing condition and tool cooling condition. In order to ensure the properties of workpieces, the time that is took by a slab to go from the reheating furnace to the press, the time that is took by the slide to go down without load and the time for forming and quenching operations are determined with the temperature drop curve.
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