通过低碳钢钢板坯生产中的快速凝固浇铸、冷轧和退火工艺对机械性能影响的研究,目的是借助于板坯铸造方法来改善低碳钢板的深拉延性能。对于连续退火低碳铝镇静钢,与普通铸造工艺比较,快速凝固板坯的晶粒细化处理对r值和拉伸性能是有利的。虽然铸坯存在粗大的针状铁素体织构,但用快速凝固板坯生产的经罩式炉退火的低碳铝镇静钢编仍具有良好的拉延性能。 The research on the influence of rapid solidification casting, cold rolling and annealing process on the mechanical properties in the production of low carbon steel slab with the purpose of improving the deep drawing performance of low carbon steel plate by means of the slab casting method. For continuously annealed low-carbon aluminum-killed steel, the grain refinement of the rapidly solidified slab is favorable for r value and tensile property as compared with the conventional casting process. Although coarse acicular ferrite texture exists in the slab, the low carbon aluminum killed steel annealed in the hood furnace produced by the rapid solidification slab still has good drawing performance.