在生产试验的条件下,通过成分设计和轧制、热处理工艺设计,采用晶粒细化、固溶强化、析出强化等手段,对80、110、120mm厚的Q460GJE-Z35高强度钢板的研发工艺及过程进行了试验研究。结果表明:通过铌、钒、钛、镍复合微合金化和控轧控冷、正火快冷(NAC)热处理相结合生产的模铸Q460GJE-Z35钢板晶粒细小、组织均匀,强度和韧性匹配良好、内部质量较优。 Under the condition of production test, the research and development of 80, 110 and 120mm thick Q460GJE-Z35 high strength steel plate are carried out by means of composition design, rolling and heat treatment process design, grain refinement, solid solution strengthening and precipitation strengthening. And the process of experimental study. The results show that the die-cast Q460GJE-Z35 steel plate produced by combination of niobium, vanadium, titanium and nickel micro-alloying and controlled rolling and controlled cooling and normalizing rapid cooling (NAC) heat treatment has the advantages of small grain, uniform structure and strength and toughness matching Good, the internal quality is better.