Experimental Research on Hot Rolling Strip Steel Plate with Micro Alloy by
The hot strip steel was rolled by using ultra fast cooling(UFC) technology in the laboratory.Combining with metallographic microstructure observation and mechanical properties test,the application of the UFC process in industrial production was researched.The results show that,when using high temperature rolling and subsequent alternating UFC process,refined ferrite grain can be got.The UFC process reduces the mill load and improves strip strength,especially tensile strength,and at the same time it increases product of tensile strength and plasticity,reduces ratio of yield to tensile strength,and increases impact absorbed energy.