EAF-LF(VD)-CC工艺生产石油管线钢39Mn2V纯净度的分析  

An Analysis on Cleanliness of Pipe Line Steel 39Mn2V for Oil Field Produced by EAF-LF(VD)-CC Process

作　　者：唐海燕[1] 李京社[1] 王剑斌[1] 谢翠红[1] 孙开明[2] 温德松[2] 张露[2] 王振祥[2] 

机构地区：[1]北京科技大学,北京100083 [2]天津钢管公司,天津300301

出　　处：《特殊钢》2006年第5期61-62,共2页Special Steel

摘　　要：分析和研究了EAF-LF（VD）-CC各工序39Mn2V钢的T[O]和[N]以及钢中非金属夹杂物。结果表明，LF（VD）后T[O]为28×10^-6，铸坯T[O]为（8～10）×10^-6；钢中夹杂物主要为Al2O3、MnS、球形铝酸钙，尺寸≤20μm。铸坯存在一些80～300μm夹杂物，主要来源于二次氧化。The total oxygen content （T [ O ] ）, nitrogen content （[ N ] ） and non-metallic inclusion in steel 39Mn2V at each phase of EAF-LF（VD）-CC process have been analyzed and studied. The results indicated that the T[ O] was 28 ×10^ -6 after LF（VD） refining and the T[ O] of cast billet was （8 - 10） × 10^ -6 ; and the inclusions in steel were mainly Al2O3, MnS, spherical calciumaluminate with size ≤20 μm. there were some inclusions with size 80 -300μm which originated from secondary oxidation, refractory material erosion and slag entrapment in mold.

关 键 词：石油管线钢 39Mn2V 连铸坯 非金属夹杂物 

分 类 号：TF762[冶金工程—钢铁冶金]