作　　者： ; ; ; ; ;

机构地区： 河北理工学院冶金与能源学院冶金工程

出　　处： 《河北理工学院学报》 2003年第4期29-37,44,共10页

摘　　要： 冷轧压下率对IF钢的深冲性能有重要的影响。采用两次冷轧,在总压下率一定的情况下,两次冷轧压下率的分配是影响IF钢深冲性能的关键。通过冷轧实验,得出在总压下率一定时,两次冷轧比一次冷轧的塑性应变比r值要高;总压下率一定,一次冷轧压下率较小,两次冷轧压下率较大时,可使r值提高;同时,冷轧总压下率提高,也可使r值提高。 The reduction rate of cold rolling has important effect for drawability of IF steel.The assigning of reduction rate in cold rolling is key for drawability in twotime cold rolling when total reduction rate is steady.It is proved by the test that Plastic strain ratio rvalues is higher in twotime cold rolling than in onetime cold rolling at the same total reduction rate.If total reduction rate is steady,rvalues is higher when the second reduction rate of cold rolling is larger than the first.If total reduction rate increases,the rvalues increase.

关 键 词： 冷轧 压下率 钢 深冲性能 塑性应变比 退火制度 织构

领　　域： [金属学及工艺]