ISSN：1003-8620

CN：42-1243/TF

Governed by: CITIC Pacific Special Steel Group Co., LTD

Sponsored by: Daye Special Steel Co., LTD.

Special Steel ›› 2011, Vol. 32 ›› Issue (5): 44-46.

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Application of Solid-Core Pure Calcium Wire during LF Refining

Zhang Bao1 , Shi Yueming1 , Xiang Li2 , Chen Yuanqing2 ,  Zhang Yanhe3   

  1. 1. Shanghai Desie Measure and Control Technology Co Ltd, Shanghai 200081 ；
    2. National Engineering Research Center of Continuous Casting Technology, Central Iron and Steel Research Institute, Beijing 100081 ；
    3. No2 Steelmaking Plant, Xinyu Iron and Steel Group Co Lid, Xinyu 338001 ;
  • Received:2011-04-08 Online:2011-10-01 Published:2022-11-02

实芯纯钙线在LF精炼过程中的应用

张宝1，施月明1，项利2，陈远清2，张延和3   

  1. 1. 上海德司克测控技术有限公司.上海 200081；
    2. 钢铁研究总院连铸技术国家工程研究中心，北京 100081；
    3. 新余钢铁集团有限公司第二炼钢厂，新余 338001；
  • 作者简介:张宝(1981-)，男，硕士，工程师,2007年昆明理工大学毕业，冶金材料的应用

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Abstract: The metallurgical effects of solid-core calcium wire (99.35% Ca) and CaFe wire (30.53% Ca) feeding during 160 t, 230 t and 300 t LF refining process have been compared and analyzed. The average acid soluble aluminium, sulphur content and temperature of liquid before and after feeding solid-core pure calcium are respectively 0.036% , 0.010% , 1587 ℃ and 0.029% , 0.008% , 1584 °C. As compared with feeding CaFe wire, with feeding solid-core calcium wire the yield of calcium increases by 10% , the feeding wire amount decreases by 50% , the feeding wire time reduces by 2 ~ 3 min and the temperature drop of liquid decreases by 3 ~5 ℃ ,it has obvious metallurgical effect.

Key words: LF Refining, Calcium Treatment, Sol id-Core Calcium Pure Wire, CaFe Wire

摘要： 对比分析了实芯钙线(99.35%Ca)和钙铁线(30.53%Ca)在160 t、230 t和300 t LF精炼过程应用的冶金效果。喂纯钙线前后平均钢水的酸溶铝、硫含量和温度分别为0.036%、0.010%、1 587℃和0.029%、0.008%、1584℃。与喂钙铁线相比,喂实芯纯钙线,钙的收得率提高10%,喂线量少50%,喂线时间缩短2～3 min,钢水温降减少3～5℃,具有明显的冶金效果。

关键词: LF精炼, 钙处理, 实芯纯钙线, 钙铁线

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