60钢小方坯缺陷对成品盘条性能的影响研究  

Influence of 60 Steel Billet Defect on Performances of Wire Coil

作　　者：钟凌鹏[1] 蒋泰旭[2] 

机构地区：[1]中钢集团工程设计研究院有限公司石家庄设计院,河北石家庄050021 [2]武钢集团昆明钢铁股份有限公司,云南昆明650302

出　　处：《山西冶金》2014年第4期5-7,共3页Shanxi Metallurgy

摘　　要：对60钢试件进行低倍酸浸试样试验;根据试验结果,分析了60钢小方坯的中心疏松、中心偏析、缩孔、非金属夹杂等缺陷对轧制成材后的60钢盘条性能影响的原因。研究表明:60钢小方坯的中心疏松、中心偏析、缩孔、非金属夹杂物等缺陷降低了成品材的力学性能,是造成盘条线材冷拔断裂的主要原因;浇注过程中适当降低钢水过热度,采用电磁搅拌,加强结晶器液面控制,稳定钢水在浇注过程中的温度,可以减少小方坯缺陷的产生。Macro experiments of 60 steel billet is done in the paper, according to experimental results, the causes that the defect on 60 sleel billet of＂ central segregation, central looseness, shrinkable bore and non-metallic inclusion influeneed on the performances of wire coil is analyzed. The results show that the main eauses which the wire coil drawn crack is that the 〈tether on 60 steel billet of c, entral segregation, central looseness, shrinkable bore and non-metallic inclusion caused, which reduce the mechanic performanee of the wire coil. The measures such as, reducing molten steel superheat, adopting electromagnetic stirring, controlling mould steel liquid level and stabilizing the molten steel temperature, can reduce the defect of 60 steel billet.

关 键 词：60钢 小方坯 缺陷 盘条性能 

分 类 号：TG142.1[一般工业技术—材料科学与工程]