连铸工序敞浇因素对冷轧板“孔洞”缺陷的影响  

EFFECT OF CASTING FACTORS IN CONTINUOUS CASTING PROCESS ON“CAVITY”DEFECT OF COLD ROLLED SHEET

作　　者：方淑芳[1] 周渝 谭飞 钟声[1] 王政 礼重超[1] 

机构地区：[1]攀枝花钢铁研究院,四川攀枝花617000 [2]攀钢质量管理处,四川攀枝花617067

出　　处：《钢铁钒钛》2000年第4期39-43,共5页Iron Steel Vanadium Titanium

摘　　要：调查了连铸工序敞浇因素对冷轧板“孔洞”缺陷的影响 ,结果表明大包敞浇时间过长 (≥ 16min) ,可使冷轧成品中的“孔洞”缺陷率明显提高。敞浇时若有多种连铸异常操作因素同时作用 ,可使连铸坯中的夹杂量增加 ,对应的成品更容易出“孔洞”。Effect of casting factors in continuous casting process on“cavity”defect of cold rolled sheet is investigated.It is concluded that longer ladle casting time(≥16 min)will obviously increase the “cavity”defect rate in the cold rolled products.Under open casting,if various anomalous operation factors act at same time,the amount of inclusion in continuous cast slab will be increased to form more“cavity”defects in the products.

关 键 词：连铸 敞浇时间 冷轧板 “孔洞”缺陷 

分 类 号：TF777[冶金工程—钢铁冶金] TG142.15[一般工业技术—材料科学与工程]