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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

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【作者】 唐海燕李京社王剑斌谢翠红孙开明温德松张露王振祥

【Author】 Tang Haiyan~1,Li Jingshe~1,Wang Jianbin~1,Xie Cuihong~1,Sun Kaiming~2,Wen Desong~2,Zhang Lu~2 and Wang Zhenxiang~2(1 University of Science and Technology,Beijing 100083;2 Tianjin Pipe Corp Ltd,Tianjin 300301)

【机构】 北京科技大学天津钢管公司天津钢管公司 北京100083北京100083天津300301

【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A l2O3、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、耐火材料侵蚀和结晶器卷渣。

【Abstract】 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(810) ×10-6;and the inclusions in steel were mainly Al2O3,MnS,spherical calciumaluminate with size ≤20 μm.there were some inclusions with size 80300 μm which originated from secondary oxidation,refractory material erosion and slag entrapment in mold.

  • 【分类号】TF762
  • 【被引频次】9
  • 【下载频次】233
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