CONSTEEL电炉生产的小型连轧螺纹钢屈服效应不明显现象的研究  

STUDY OF IMPLICIT YIELD OF RE-BAR PRODUCED CONSTEEL-EAF-SMALL CONTINUES ROLLING MILL ROUTE

作　　者：林晏民 

机构地区：[1]广东省韶关钢铁集团公司

出　　处：《钢铁》2004年第1期51-54,共4页Iron and Steel

摘　　要：韶钢 Consteel电炉投产初期生产的螺纹钢出现大量屈服效应不明显现象。研究结果表明 ,钢中氮和残余元素含量较高造成其显微组织中有较多的粒状贝氏体 ,从而引起屈服效应不明显现象 ;用锰当量 (Mneq)指标能定量地反映螺纹钢屈服效应不明显现象与化学成分的内在联系 ,当 Mneq>1.84 %时则易出现屈服效应不明显现象 ,当 Mneq<1.84 %时则不易出现屈服效应不明显现象。为预防螺纹钢屈服效应不明显现象提供一种工艺方法。There was implicit yield of reinforced bar produced by Consteel EAF It was found that high N and residuals cause more granular bainite as the reason of implicit yield The inner link between implicit yield and composition, the target can be characterizied quantitatively by of Mn eq With Mn eq >1 84 %, the implicit yield is observed and when Mn eq <1 84 % ,the implicit yield is absent

关 键 词：屈服效应 粒状贝氏体 锰当量 CONSTEEL电炉 螺纹钢 连轧 

分 类 号：TG335[金属学及工艺—金属压力加工]