Application of Nominal Casting Speed Technology in Steelmaking Plant of WISCO

摘要：

　　Steelmaking plants of WISCO are carrying out “nominal casting speeds in the production of continuous casting.The deviation of casting speed may cause series of problems such as longitudinal cracks,segregations and the decrease of purity of the steel.A series of solutions are proposed after analyzing the key factors that may influence casting speed.The nominal casting speeds ratio has been improved to above 94%through coordinating the production of BOF,RH vacuum degassers and continuous casters.It also improves the control level of automatic production management.The acceptability of slabs rises up to 99.89%and the nonqualified ratio of slabs after rolling decreases to 0.35%.Ratio of A-grade segregation is 0 in the consecutive 47 months and the segregation ratio that is lower than C-grade is 99.44%.This high level control provides an excellent foundation on the productions of automotive sheet steels and pipelines which has achieved good economic benefits.

关键词： nominal casting speeds quality of slabs temperature organization of production

作者: Yunchao YANG Yu ZHANG Xinquan YANG Lipin LIN

作者单位: Wuhan Iron and Steel Co.Ltd. General Steelmaking Plant,Wuhan 430080,Hubei,China

会议类型: 国际会议

会议名称: the 6th International Congress on the Science and Technology of Steelmaking,ICS2015(第六届国际炼钢科技大会)

会议地点: 北京

会议语种:英文

页码: 44-46

在线出版日期: 2015-05-12（万方平台首次上网日期，不代表论文的发表时间）