降低板坯纵裂纹生产实践  

Production Practice on Reducing Slab Cracks

作　　者：林挺[1] 廖小文[1] 

机构地区：[1]新余钢铁集团有限公司,江西新余338001

出　　处：《江西冶金》2016年第4期18-20,共3页Jiangxi Metallurgy

摘　　要：针对新钢第一炼钢厂板坯1号连铸机纵裂纹现状,对其产生原因进行分析,指出目前水口对中差、液面波动大、保护渣液渣薄是三大主因,并提出了有效解决措施,降低了纵裂纹的下线率和轧后发生率,确保了生产顺行和产品质量稳定。Aiming at the slab longitudinal crack status of No. 1 continuous caster in No. 1 Steelmaking Plant in Xinyu Steel, the causes are analyzed. It is pointed out that the nozzle of centring difference, great level fluctuation, thin liquid casting powder are three major causes, and some effective measures are put forward. And to reduce occurrence rate d^e to the longitudinal crack and that after rolling and ensure smooth production and stable quality.

关 键 词：纵裂纹 液面自动控制 流场 保护渣 

分 类 号：TF777.1[冶金工程—钢铁冶金]