连铸保护渣对GCr15轴承钢铸坯渣沟缺陷的影响

doi:10.13228/j.boyuan.issn1005-4006.20200142

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Abstract To solve the problem of slag-scratch defect on the surface of GCr15 steel strand continuous casting billet, the physical and chemical properties of the mold flux were systematically analyzed, and two solutions were proposed to improve the melting and lubrication of mold flux, and industrial trials were conducted to test the effect of mold slag.The viscosity of the mold flux at 1 300 ℃ was reduced from 0.35-0.55 to 0.15-0.25 Pa·s, the melting point was lowered from 1 180-1 220 to 1 060-1 110 ℃, the slag consumption of steel was increased from 0.27 to 0.35 kg/t(steal), and the slag-scratch defect was eliminated.

Key words： bearing steel continuous casting mold slag slag-scratch defect viscosity

Received: 14 December 2020 Published: 23 February 2021

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	Articles by authors
	LI Quan-hui
	TAO Biao
	XU Zhi-xiang
	ZHOU Jian
	WANG Qiang-qiang
	HE Sheng-ping

Cite this article:

LI Quan-hui,TAO Biao,XU Zhi-xiang等. Effect of mold slag on slag-scratch on continuous casting billet of GCr15 bearing steel[J]. CONTINUOUS CASTING, 2021, 40(1): 55-58.

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http://www.chinamet.cn/Jweb_lz/EN/10.13228/j.boyuan.issn1005-4006.20200142 OR http://www.chinamet.cn/Jweb_lz/EN/Y2021/V40/I1/55

[1]	王旭冀, 陈军, 刘庆, 等. 高级优质轴承钢GCr15A工艺探索[J]. 金属材料与冶金工程, 2019, 47(2): 12.
[2]	陈钰德, 张亚兵, 赵立, 等. 高碳磨球钢连铸保护渣性能优化[J]. 云南冶金, 2020, 49(5): 63.
[3]	朱立光, 王杏娟. 连铸保护渣理论与实践[M]. 北京: 冶金工业出版社, 2015.
[4]	关文博, 王峥, 朱嘉,等. 70钢铸坯表面渣沟缺陷分析与优化[J]. 山西冶金, 2019(5): 21.
[5]	车从荣, 陈伟, 金书淮, 等. 淮钢大断面高碳钢圆坯保护渣的优化及应用[J]. 现代冶金, 2017, 45(6): 37.
[6]	吕长海, 程树森, 孙黎黎, 等. SWRH82B钢生产工艺分析及优化[J]. 山东冶金, 2018, 40(21): 14.
[7]	张德俊, 江学德, 陈永金, 等. 柳钢3号方坯连铸机生产SWRH82B实践[J]. 柳钢科技, 2018(4): 10.
[8]	王璞, 李少翔, 陈列. 电磁搅拌对大圆坯结晶器冶金行为影响的探讨[J]. 钢铁, 2019, 54(8): 82.
[9]	左小坦, 赵立, 张洪彪, 等. 浸入式水口对82B钢方坯渣沟缺陷的影响[J]. 钢铁, 2020, 55(10): 43.
[10]	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.
[11]	王杏娟,靳贺斌,朱立光,等.钢中钛含量对连铸结晶器内渣金反应的影响[J].钢铁,2020,55(12):46.