ISSN：1003-8620

CN：42-1243/TF

主管：中信泰富特钢集团股份有限公司

主办：大冶特殊钢有限公司

特殊钢 ›› 2014, Vol. 35 ›› Issue (4): 28-30.

• 工艺技术 • 上一篇    下一篇

CaF2-Al2O3-CaO渣系电渣重熔过程形成的渣皮结构及成分

李永波1, 赵俊学1, 唐雯聃1,党艳梅1,仇圣桃2,崔雅茹1   

  1. 1西安建筑科技大学冶金工程学院，西安710055；
    2钢铁研究总院国家连铸中心，北京100081
  • 收稿日期:2014-02-14 出版日期:2014-08-01 发布日期:2022-09-03
  • 作者简介:李永波(1984-),男，硕士研究生，冶金工艺优化与模拟研究。
  • 基金资助:
    国家自然科学资金资助(51174155)

Composition and Structure of Slag Shell during Electroslag Remelting Process with CaF2-Al2O3-CaO Slag Series

Li Yongbo1, Zhao Junxue1, Tang Wendan1, Dang Yanmei1, Qiu Shengtao2, Cui Yaru1   

  1. 1 School of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055;
    2 National Continuous Casting Center, Central Iron and Steel Research Institute, Beijing 100081
  • Received:2014-02-14 Published:2014-08-01 Online:2022-09-03

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摘要： 分析了9.5 t热作模钢H13重熔锭在380 kg 60CaF2-30Al2O3-10CaO三元渣的重熔过程中渣头和渣皮的结构和成分。结果表明,电渣锭生产过程的渣皮呈现明显的分层结构,自外侧向内,依次为急冷层、氧化铝析出层和内部返熔层;渣头中CaF2含量普遍低于初渣值,而渣皮中CaF2含量高于初渣值;铝氧化物在渣头外缘比重最高;重熔后渣的氧含量明显高于初渣。

Abstract: The structure and composition of slag shell and final slag during remelting process of 9. 5 t remelting ingot of hot working die steel H13 with 380 kg 60CaF2 -30Al2O3 -10CaO ternary slag system have been analyzed. Results show that during electroslag remelting process the slag shell presents obvious laminating-structure, from out-side to inner-side in proper order being rapid cooling layer, aluminum oxide precipitating layer and inner remelting layer； the CaF2 content in final slag is generally lower than that in initial slag and the CaF2 content in lag shell is higher than that in initial slag； the aluminum oxide content in outside of final slag is highest ； and the oxygen content in remelted slag is obviously higher than that in original slag.

Key words:  , CaF2-Al2O3-CaO Slag Series, Electroslag Remelting(ESR), Slag Shell, Structure

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