冷轧压下率对DQ级深冲带钢组织和性能的影响  

Influence of Cold Reduction on Structure and Properties of DQ Level Deep-Drawing Strip Steel

作　　者：程晓杰[1] 刘雅政[1] 武磊[1] 孙有博[1] 田荣斌[2] 闫波[2] 张晓燕[2] 

机构地区：[1]北京科技大学材料科学与工程学院,北京100083 [2]包头钢铁集团公司薄板厂,包头014010

出　　处：《特殊钢》2010年第1期46-48,共3页Special Steel

摘　　要：研究了60%～80%冷轧压下率对3.5 mm CSP热轧板轧制的1.4～0.7 mm冷轧深冲带钢力学性能、组织和织构的影响。结果表明,随冷轧压下率由60%提高至80%,冷轧带钢的再结晶开始温度由560℃降至520℃,成品带钢组织细化;当冷轧压下率为74.3%时,成品DQ级带钢的深冲性能最佳。随冷轧压下率提高,成品深冲带钢△r值逐渐减小,这与成品带钢中{112}〈110〉织构取向函数值f(g)升高有关。Effect of 60% - 80% cold reduction on structure, texture and mechanical properties of 1.4 - 0. 7 mm cold rolled deep-drawing strip steel firom 3.5 mm CSP （ Compact Strip Production） hot rolled plate has been studied. Results show that with increasing cold reduction to 80% from 60% , the beginning reclystallization temperature of cold rolled strip steel decreases to 520 ℃ from 560 ℃ and the structure of strip steel products fines, and with 74. 3% cold reduction the DQ lever deep-drawing performance is optimum. With increasing cold reduction the △r value of deep-drawing strip steel products gradually decreases, that is relating to enhancement of orientation function f（g） value of {112} 〈 110 〉 texture in strip steel products.

关 键 词：CSP DQ 冷轧压下率 组织 织构 力学性能 

分 类 号：TG335.12[金属学及工艺—金属压力加工]