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利用多功能连续退火模拟器Multipas对屈服强度为380MPa的低硅型冷轧低合金高强钢板连续退火生产工艺进行了模拟,研究了在820,800,780℃三种不同退火温度和60,120,160m.min-1三种不同退火速度下,连退工艺对冷轧低合金高强钢板组织、力学性能的影响.结果表明,在不同的退火温度、退火速度下钢板退火组织的晶粒度基本相同,采用较低的退火温度和较高的退火速度时,可获得较好的强化效果.同时指出,在较高的连续退火温度下,退火速度对力学性能的影响较为显著.
The multi-functional continuous annealing simulator Multipas was used to simulate the continuous annealing process of low-silicon cold-rolled low-alloy high-strength steel with a yield strength of 380MPa. Three different annealing temperatures of 820,800 and 780 ℃ and 60,120 and 160m · min-1 The results show that the grain size of the annealed steel is basically the same at different annealing temperature and annealing speed, and the annealing temperature is lower than that of the annealed steel at low annealing temperature And higher annealing speed, better strengthening effect can be obtained.At the same time, it is pointed out that the effect of annealing speed on the mechanical properties is significant at higher continuous annealing temperature.