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    • 8. 发明授权
    • Manufacturing method of steel sheet for cans
    • 罐头钢板的制造方法
    • US08372221B2
    • 2013-02-12
    • US13141129
    • 2009-12-22
    • Katsumi KojimaTakumi TanakaMasaki TadaMakoto ArataniHiroki Iwasa
    • Katsumi KojimaTakumi TanakaMasaki TadaMakoto ArataniHiroki Iwasa
    • C21D8/02
    • C21D8/0426C21D8/0436C21D8/0463C21D9/48C21D9/52C21D2211/004C21D2211/005C22C38/001C22C38/004C22C38/02C22C38/04C22C38/06
    • A method provides a slab by continuous casting of a steel having a component composition of, in mass %, C: 0.005% or less, Mn: 0.05 to 0.5%, Al: 0.01 to 0.10%, N: 0.0010 to 0.0070%, B: 0.15×N to 0.75×N (0.15 to 0.75 in terms of B/N), and one or both of Nb: 4×C to 20×C (4 to 20 in terms of Nb/C) and Ti: 2×C to l0×C (2 to 10 in terms of Ti/C), and the balance of Fe and inevitable impurity elements; rough rolling the slab; finish rolling the rough-rolled slab wherein 5% or more and less than 50% of the total amount of rolling reduction in the finish rolling is hot-rolled at a temperature lower than the Ar3 transformation point; winding the hot-rolled steel sheet at a winding temperature of 640 to 750 ° C.; pickling the coiled steel sheet; cold rolling the pickled steel sheet at a rolling reduction rate of 88 to 96%; and annealing the cold-rolled steel sheet in a temperature range of higher than 400 ° C. to a temperature that is 20 ° C. lower than the recrystallization temperature.
    • 通过连续铸造具有质量%C:0.005%以下,Mn:0.05〜0.5%,Al:0.01〜0.10%,N:0.0010〜0.0070%,B :0.15×N〜0.75×N(B / N为0.15〜0.75),Nb:4×C〜20×C(Nb / C为4〜20),Ti:2× C至10×C(以Ti / C计2至10),余量为Fe和不可避免的杂质元素; 粗轧板坯; 将精轧中的压下量的5%以上且小于等于50%的粗轧板进行精轧,在低于Ar 3相变点的温度下进行热轧, 在640〜750℃的卷绕温度下卷绕热轧钢板。 酸洗卷板钢板; 以88%〜96%的压下率冷轧酸洗钢板; 并在高于400℃的温度范围内对冷轧钢板退火至比再结晶温度低20℃的温度。