学术
09CuPTiRE钢连铸板坯表面纵裂分析和改进工艺实践
辛建卿[1] 余伟[2]
[1]太原钢铁集团有限公司技术中心,太原030003 [2]北京科技大学高效轧制国家工程研究中心,北京100083
摘 要:
09CuPTiRE耐候钢（％：≤0．12C、0．06～0．12P、≤0．020S、0．25～0．50Cu、≤0．03Ti、0．01～0．04RE）180mm×1200mm板坯由80t转炉。钢包吹氩。板坯连铸机生产。通过控制Cu／Ti≤20、P含量≤0．11％、RE含量0．01％-0．03％，使用09CuPTiRE钢专用保护渣，结晶器液面波动≤10mm，减少二冷配水量15％等工艺措施，使09CuPTiRE钢板坯纵裂发生率由15％降至0．5％。[著者文摘]
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文章出处:
《特殊钢》-2007年28卷6期 -59-60页
栏目信息:
分 类 号:
Analysis and Improved Process Practice on Surface Longitudinal Crack of Concasting Slab of Steel 09CuPTiRE
Xin Jianqing and Yu Wei （1 Technology Center, Taiyuan Iron and Steel （Group） Co Ltd, Taiyuan 030003; 2 National Engineering Research Center for Advanced Rolling, University of Science and Technology, Beijing 100083）
Abstract:
The 180 mm × 1 200 mm slab of atmospheric corrosion-resisting steel 09CuPTiRE （≤0. 12C, 0.06 - 0. 12P, ≤0. 020S, 0. 25-0. 50Cu,≤0. 03Ti, 0. 01-0. 04RE） is produced by 80 t converter - ladle argon stirring - vertical- bending slab caster process. With using improved process measures such as controlling Cu/Ti ≤ 20, P content 0. 11%, RE content 0. 01% - 0. 03%, using special mold powder for steel 09CuPTiRE, mold liquid level fluctuation ≤10 mm and decreasing secondary cooling water rate, the occurred rate of longitudinal crack of steel 09CuPTiRE decreased from original 15% to 0. 5%.[著者文摘]
Key words:
Index Atmospheric Corrosion-Resisting Steel 09CuPTiRE, Concasting Slab, Longitudinal Crack, Improved ProeSS
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