摘要
对W18电渣锭中心疏松及孔洞试样进行酸洗低倍、金相组织、成分、光谱等检验,并对其生产工艺过程及参数进行调查,分析了W18电渣锭中心疏松及孔洞形成原因。分析结果表明,渣量的增加导致渣温降低和凝固时钢液补充不足是W18电渣锭产生疏松的主要原因。利用双极串联电渣重熔原理,分析了因渣量增加引起钢锭疏松的形成机理,通过试验,确定了将渣量调整到56 kg后,W18电渣锭质量良好。
The sample of W18 electric slag ingot with central loose and holes is detected in pickling macro structure, metallographic structure, composition and optical spectrum, its production process and parameters are investigated, the reason is analyzed. It is showed from the analysis that the main reason is slag quantity increased and so caused the slag temperature lowered and molten steel supplement not enough in solidification. With bipolar series electroslag remelting principle, the mechanism of increased slag quantity causing ingot being loose is analyzed. In test the slag quantity is adjusted to 56 kg, and then the quality of W18 electric slag ingot gets improved.
出处
《河北冶金》
2016年第9期13-16,共4页
Hebei Metallurgy
关键词
W18电渣锭
中心疏松
原因
改善
W18 electric slag ingot
central loose
reason
improvement
