H13热作模具钢电渣重熔渣系优化

doi:10.13228/j.boyuan.issn0449-749x.20220023

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Abstract Die steel is the most important part of mold, its variety, specifications and quality play a decisive role in the performance, service life and manufacturing cycle of the mold. Due to the strict quality requirements of die steel, higher requirements are put forward on the production technology and preparation process of die steel. The steel ingot smelted by the electroslag remelting (ESR) process has the advantages of high uniformity, high cleanliness and low segregation, gradually become one of the main technical means for smelting high-quality die steel. During electroslag remelting, the slag system plays a key role in melting electrodes, molten steel refining, solidification and crystallization, etc, it is the basis of smelting stability, therefore, selecting appropriate slag composition and performance is the key to the electroslag remelting process. This research combined the characteristics of 4Cr5MoSiV1 hot work die steel, take the current five H13 hot work die steel ESR slag systems of a steel factory as the research object, through the physical and chemical performance analysis and microstructure research of the slag systems, the direction of slag system optimization was put forward, then defined the slag systems suitable for ESR remelting H13 hot work die steel. The results shows that the melting point, viscosity, density, optical alkalinity, electrical conductivity and other physical and chemical properties of L4 slag system is better. The average coordination number of Al in the slag is the largest while it is 2.39. Moreover, the proportion of Al with three coordination and four coordination is relatively high, and the network structure is more complicated. Complex structural units Q³ and Q⁴ have the most content, and they have a network structure with high polymerization degree. Al—O bond length is short and Si—O, Si—F bonds with shorter bond lengths, electroslag remelting process is the most stable, using this slag system can effectively improve the structure and performance, surface quality of H13 steel, and reduce power consumption. The research results provide theoretical guidance for the industrial production of H13 hot work die steel electroslag remelting in a steel factory.

Key words： H13 electroslag remelting physical and chemical property microstructure optimization of slag system

Received: 10 January 2022

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	WANG Hong-tao
	HAN Yi-hua
	CAO Li-jun
	ZHU Li-guang

Cite this article:

WANG Hong-tao,HAN Yi-hua,CAO Li-jun等. Optimization of electroslag remelting slag system of H13 hot work die steel[J]. Iron and Steel, 2022, 57(8): 111-122.

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http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20220023 OR http://www.chinamet.cn/Jweb_gt/EN/Y2022/V57/I8/111

[1] 李绍宏, 何文超, 张旭, 等.H13型热作模具钢表面改性技术研究进展[J]. 钢铁, 2021, 56(3): 13.(LI Shao-hong, HE Wen-chao, ZHANG Xu, et al. Research progress on surface modification technology of H13 hot work die steel[J]. Iron and Steel, 2021, 56(3): 13.)
[2] 张亮亮, 周阳, 刘世锋, 等. 模具钢增材制造及其性能的研究进展[J]. 中国冶金, 2022, 32(3): 1.(ZHANG Liang-liang, ZHOU Yang, LIU Shi-feng, et al. Research progress on additive manufacturing and properties of die steel[J]. China Metallurgy, 2022, 32(3): 1.)
[3] 李星, 耿鑫, 姜周华, 等. 电渣重熔高温合金渣系对冶金质量的影响[J]. 钢铁, 2015, 50(9): 41.(LI Xing, GENG Xin, JIANG Zhou-hua, et al. Influences of slag system on metallurgical quality for high temperature alloy by electroslag remelting[J]. Iron and Steel, 2015, 50(9): 41.)
[4] 王迪, 杨树峰, 曲敬龙, 等. GH4169电渣重熔铸锭表层夹杂物分布规律[J]. 钢铁, 2021, 56(2): 155. (WANG Di, YANG Shu-feng, QU Jing-long, et al. Distribution of inclusions on the surface of GH4169 electroslag remelting ingot[J]. Iron and Steel, 2021, 56(2): 155.)
[5] 田鹏,武献民,薛月凯,等.钢铁渣综合利用现状及管控措施[J].冶金能源,2020,39(5):9.(TIAN Peng,WU Xian-min,XUE Yue-kai,et al. Comprehensive utilization and control measures of iron and steel slag[J].Energy for Metallurgical Industry,2020,39(5):9.)
[6] 孙常亮, 周伟基, 李涛, 等. 电渣重熔轴承钢中的硅元素烧损的控制[J]. 中国冶金, 2015, 25(6): 28.(SUN Chang-liang, ZHOU Wei-ji, LI Tao, et al. Control of silicon element in bearing steel durning electroslag remelting[J]. China Metallurgy, 2015, 25(6): 28.)
[7] 佟帅,李晨晓,王书桓,等.钢渣处理工艺及综合利用分析[J].冶金能源,2020,39(6):3.(TONG Shuai,LI Xiao-chen,WANG Shu-huan,et al.Steel slag treatment process and comprehensive utilization analysis[J].Energy for Metallurgical Industry,2020,39(6):3. )
[8] 巨建涛, 安家良, 史成斌, 等. 电渣重熔用低氟渣与Incoloy825合金中Al、Ti反应性的研究[J]. 稀有金属材料与工程, 2020, 49(1): 233.(JU Jian-tao, AN Jia-liang, SHI Cheng-bin, et al. Reactiveness of low fluorine slag for electroslag remelting to Al and Ti of incoloy 825 alloy[J]. Rare Metal Materials and Engineering, 2020, 49(1): 233.)
[9] 黄永建, 刘军会, 杨进航, 等. 增材制造模具的研究进展[J]. 中国冶金, 2019, 29(11): 6. (HUANG Yong-jian, LIU Jun-hui. YANG Jin-hang, et al. Research progress on additive manufacture molds[J]. China Metallurgy, 2019, 29(11):6.)
[10] 姜周华, 董艳伍, 李花兵, 等. 特殊钢特种冶金技术的新发展[J]. 中国冶金, 2011, 21(12): 1.(JIANG Zhou-hua, DONG Yan-wu, LI Hua-bing, et al. Development of special melting technology for special steel[J]. China Metallurgy, 2011, 21(12): 1.)
[11] 朱立光, 张晓仕, 王杏娟, 等. 高钛焊丝钢CaO-Al₂O₃基专用保护渣熔化特性分析[J]. 中国冶金, 2020, 30(10): 9.(ZHU Li-guang, ZHANG Xiao-shi, WANG Xing-juan, et al. Analysis on melting characterics of CaO-Al₂O₃ based special mold flux for high-titanium welding wire steel[J]. China Metallurgy, 2020, 30(10): 9.)
[12] 刘仕业. 抽锭电渣重熔轴承钢GCr15渣系开发[D]. 鞍山:辽宁科技大学, 2015. (LIU Shi-ye. Development of New Slags for Bearing Steel GCr15 by Electroslag Remelting Withdrawing[D]. Anshan: University of Science and Technology Liaoning, 2015.)
[13] 梁小平, 陆东旭, 王雨, 等. Cao-B₂O₃-SiO₂-TiO₂系保护渣配位结构的计算模拟[J]. 重庆大学学报, 2015, 38(5): 135.(LIANG Xiao-ping, LU Dong-xu, WANG Yu, et al. Computational simulation on the coordition structure of Cao-B₂O₃-SiO₂-TiO₂ mold fluxes system[J]. Journal of Chongqing University, 2015, 38(5): 135.)
[14] 于新皓, 王傲, 刘福斌, 等. 电流对电渣重熔过程多场耦合行为和凝固参数影响的数值模拟[J]. 钢铁研究学报, 2021, 33(8): 744.(YU Xin-hao, WANG Ao, LIU Fu-bin, et al. Numerical simulation of effects of currents on multi-field coupling behavior and solidification parameters during electroslag remelting process[J]. Journal of Iron and Steel Research, 2021, 33(8): 744.)
[15] 彭雷朕,姜周华,耿鑫. B₂O₃对电渣重熔冶炼 COST-FB2钢用CaF₂基熔渣挥发性能的影响[J]. 材料与冶金学报, 2020, 19(1): 26.(PENG Lei-zhen,JIANG Zhou-hua,GENG Xin. Effect of B₂O₃ on the evaporation behavior of the CaF₂-based slag for electroslag remelting the COST-FB2 steel[J]. Journal of Materials and Metallurgy, 2020, 19(1): 26.)
[16] 师帅, 耿鑫, 姜周华, 等. TiO₂含量对于CaF₂-Al₂O₃-CaO-MgO-TiO₂五元电渣重熔渣系物性参数的影响[J]. 工程科学学报, 2018, 40(增刊1): 47.(SHI Shuai,GENG Xin,JIANG Zhou-hua, et al. Influence of TiO₂ content on the physical properties of the CaF₂-Al₂O₃-CaO-MgO-TiO₂ five yuan electroslag remelting system[J]. Chinese Journal of Engineering, 2018, 40(s1): 47.)
[17] 张晓博, 刘承军, 姜茂发. CaF₂对CaO-Al₂O₃-CaF₂熔体结构影响的分子动力学研究[J].东北大学学报(自然科学版), 2020, 41(4): 510. (ZHANG Xiao-bo,LIU Cheng-jun,JIANG Mao-fa. Molecular dynamics study on effect of CaF₂ on melt structure of CaO-Al₂O₃-CaF₂[J]. Journal of Northeastern University(Natural Science), 2020, 41(4): 510.)
[18] 姜周华. 电渣冶金的物理化学及传输现象[M]. 沈阳:东北大学出版社,2000. (JIANG Zhou-hua. Physical Chemistry and Trans port Phenomena During Electroslag Metallurgy[M]. Shenyang:Northeastern University Press,2000.)
[19] 董艳伍,陈浩禹,李想,等.电渣重熔过程中熔滴滴落的影响因素[J].东北大学学报(自然科学版), 2016, 37(11):1564.(DONG Yan-wu,CHEN Hao-yu,LI Xiang, et al. Effect of multiple factors on droplets during electroslag remelting process[J]. Journal of Northeastern University(Natural Science), 2016, 37(11):1564.)
[20] 梁连科. 关于炉渣光学碱度问题[J].辽宁冶金, 1995(5): 24.(LIANG Lian-ke. On the optical basicity of slag[J]. Liaoning Metallurgy, 1995(5): 24.)
[21] 翟华平, 刘福斌, 王庆. 抽锭式电渣重熔空心钢锭用新渣系的研究[J]. 现代冶金, 2019, 47(1): 34. (ZHAI Hua-ping, LIU Fu-bin, WANG Qing. Research on the new slag system for hollow steel ingots with pumped ingot electroslag remelting[J]. Modern Metallurgy, 2019, 47(1): 34.)
[22] 董艳伍, 姜周华, 李花兵, 等. 电渣冶金用含氟渣系电导率计算方法[J]. 材料与冶金学报, 2012, 11(4): 274.(DONG Yan-wu,JIANG Zhou-hua,LI Hua-bing, et al. Conductivity calculation of slag containing fluoride used for electroslag metallurgy[J]. Journal of Materials and Metallurgy, 2012, 11(4): 274.)
[23] PIAO Zhan-long, ZHU Li-guang, WANG Xing-juan. Exploitation of mold flux for the Ti-bearing welding wire steel ER80-G[J]. High Temperature Materials and Processes, 2019, 38(1): 873.
[24] Armin Paar, Reinhold Schneider, Peter Zeller, et al. Effect of electrical parameters on type and content of non-metallic inclusions after electro-slag-remelting[J]. Steel Research International, 2016, 87(7): 570.
[25] 刘克, 曾义君, 韩毅华, 等. 电磁场对连铸保护渣流变特性的影响[J]. 中国冶金, 2020, 30(4): 31. (LIU Ke,ZENG Yi-jun, HAN Yi-hua, et al. Effect of electromagnetic field on rheological properties of continuous casting mold flux[J]. China Metallurgy, 2020, 30(4): 31.)
[26] 佟志芳,肖成,魏战龙.分子动力学模拟及其在冶金炉渣中的应用研究[J].有色金属科学与工程, 2016 (7):15.(TONG Zhi-fang, XIAO Cheng, WEI Zhan-long. Molecular dynamics simulation and its application to metallurgical slag[J]. Nonferrous Metals Science and Engineering, 2016(7): 15.)
[27] 刘克, 韩毅华, 杨帆, 等. MgO对CaO-Al₂O₃基四元系保护渣熔渣微结构的影响[J].钢铁, 2020, 55(5): 52. (LIU Ke, HAN Yi-hua, YANG Fan, et al. Effect of MgO on microstructure of CaO-Al₂O₃ based quarternay system mold fluxes[J]. Iron and Steel, 2020, 55(5): 52.)