安徽冶金科技职业学院学报
安徽冶金科技職業學院學報
안휘야금과기직업학원학보
JOURNAL OF ANHUI VOCATIONAL COLLEGE OF METALLURGY AND TECHNOLOGY
2015年
2期
5-7,10
,共4页
氧含量%顶渣%铝含量%吹氩
氧含量%頂渣%鋁含量%吹氬
양함량%정사%려함량%취아
Oxygen content%Top slag%Aluminum content%Argon blowing
针对马钢100t电弧炉EAF→LF→RH生产弹簧钢60Si2MnA的冶炼生产工艺流程，采取系统的取样、综合分析弹簧钢冶炼过程中全氧变化规律及影响因素，结果表明：在电弧炉－LF精炼－RH真空处理中，全氧含量基本是逐渐降低的；通过精炼全程底吹氩气，采用顶渣操作和高碱度（R＝3．5）精炼渣，来降低渣中氧化物的含量及活度，均有利于降低弹簧钢中的全氧含量；钢水中氧含量最终可以控制在10ppm以内。
針對馬鋼100t電弧爐EAF→LF→RH生產彈簧鋼60Si2MnA的冶煉生產工藝流程，採取繫統的取樣、綜閤分析彈簧鋼冶煉過程中全氧變化規律及影響因素，結果錶明：在電弧爐－LF精煉－RH真空處理中，全氧含量基本是逐漸降低的；通過精煉全程底吹氬氣，採用頂渣操作和高堿度（R＝3．5）精煉渣，來降低渣中氧化物的含量及活度，均有利于降低彈簧鋼中的全氧含量；鋼水中氧含量最終可以控製在10ppm以內。
침대마강100t전호로EAF→LF→RH생산탄황강60Si2MnA적야련생산공예류정，채취계통적취양、종합분석탄황강야련과정중전양변화규률급영향인소，결과표명：재전호로－LF정련－RH진공처리중，전양함량기본시축점강저적；통과정련전정저취아기，채용정사조작화고감도（R＝3．5）정련사，래강저사중양화물적함량급활도，균유리우강저탄황강중적전양함량；강수중양함량최종가이공제재10ppm이내。
Based on the smelting process of the EAF → LF → RH for 60Si2MnA spring steel of Ma Steel electric furnace the evolvement about full of oxygen in the the spring steel smelting process and impact factors, the same time, the distribution of of spring steel non -metallic inclusions, sources, and control system analysis, the following conclusions:In the electric arc furnace-LF the re-fining-RH vacuum treatment, the total oxygen content is substantially decreased gradually.By refi-ning the whole bottom blowing argon,,the top slag operation and high alkalinity ( R=3.5 ) refining slag,to reduce the oxide content of the slag and activity are conducive to reducing the total oxygen con-tent of spring steel.The oxygen content in steel can be controlled at less than 10ppm.
