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 ›› 2008, Vol. 29 ›› Issue (2): 60-62.
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Zhang Ting,Bao Yanping,Cui Heng,Yue Feng and Jin Youlin
Online:
Published:
张 婷 包 燕 平 崔 衡 岳 峰 金 友 林
作者简介:
Abstract: The cleanliness low carbon aluminum killed steel(0.05~0.06C,0.04Al)was melted by 210 t top and bottom combined blown converter - CAS(composition adjustment by sealed argon bubbling)refining - concasting 230 mm slab flow sheet. With sealed argon bubbling treatment for 27~28 min,the total [0] of liquid steel decreased to(19~ 24)×10-6 from(50~60)×10-6 before CAS treatment,the total [0] of steel in tundish decreased to(17~20)×10-6 and the total oxygen content in cast slab was(11~15)×10-6.The main inclusions in cast slab were ≤3 μm spherical and block shaped Al2O3 and combined Al2O3-MnS inclusions,and the maximum content of ≥50 um large inclusions in slab was 5.18 mg/10kg
Key words: Low Carbon Aluminum killed steel,Combined Blown Converter,CAS Refining,Slab,Inclusions
摘要: 洁净低碳铝镇静钢(%:0.05~0.06C、0.04Al)由210 t顶底复吹转炉-CAS精炼-连铸230 mm板坯流 程冶炼。通过27~28 min CAS密封吹氩处理,钢液T[0]由CAS前(50~60)×10~‘降至(19~24)×10-6,中间包 钢水T[0]降至(17~20)×10-6,铸坯总氧含量为(11~15)×10-6。铸坯中主要为≤3 μm的球状、块状Al,O,和 Al203-MnS复合夹杂。≥50 μm的大型夹杂物最高含量为5.18 mg/10kg
关键词: 低碳铝镇静钢 复吹转炉CAS精炼板坯非金属夹杂物
Zhang Ting, Bao Yanping, Cui Heng, Yue Feng and Jin Youlin. Cleanliness of Low Carbon Aluminum Killed Steel Produced by 210 t#br# Combined Blown Converter -CAS Refining-Concasting Flow Sheet#br#[J]. Special Steel, 2008, 29(2): 60-62.
张 婷 包 燕 平 崔 衡 岳 峰 金 友 林. 210 t复吹转炉-CAS精炼-连铸流程生产低碳铝镇静钢的洁净度[J]. 特殊钢, 2008, 29(2): 60-62.
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https://www.specialsteeljournal.com/EN/Y2008/V29/I2/60