304奥氏体不锈钢铸锭中非金属夹杂物研究  

Research on Non-metallic Inclusions in 304 Austenitic Stainless Steel Ingot

作　　者：张雅丽[1] 王建军[1] 罗林根[1] 郭上型[1] 孔辉[1] 周俐[1] 

机构地区：[1]安徽工业大学冶金与资源学院,安徽马鞍山243002

出　　处：《安徽工业大学学报（自然科学版）》2011年第4期350-354,共5页Journal of Anhui University of Technology（Natural Science）

摘　　要：研究304不锈钢铸锭中非金属夹杂物的类型和数量,通过示踪剂分析不锈钢中夹杂物的来源。结果表明:不锈钢铸锭中显微夹杂物主要是以Al2O3-SiO2-CaO系硅酸盐夹杂为主,粒度<5μm的显微夹杂物中同时存在大量的镁铝尖晶石夹杂;大型夹杂物主要有两类复合夹杂物Al2O3-SiO2-CaO系夹杂、Al2O3-SiO2系夹杂;汤道耐火材料的侵蚀是夹杂物主要来源之一,钢包耐火材料对夹杂生成的影响微弱。The type and the amount of the non-metallic inclusions in 304 stainless steel ingot were investigated,with a tracer used to find out the origin of inclusion.The results show that most of the micro inclusions are Al2O3-SiO2-CaO system inclusions,the micro inclusions（5 μm） coexit amount of MgO-Al2O3 spinel inclusions;the macro inclusion is main to have two types of compound admixture,respectively is the type of Al2O3-SiO2-CaO,the type of Al2O3-SiO2;one of the main source of the non-matallic inclusions is the slag for the refractory corrosion in the molten steel during tapping;ladle lining affects slightly.

关 键 词：不锈钢 模铸 非金属夹杂物 示踪剂 

分 类 号：TF703.54[冶金工程—钢铁冶金]