Mathematical Simulation of Flow Phenomena in CAS-OB Refining Ladle  

作　　者：ZHOU Yun DONG Yuan-chi WANG Hai-chuan WANG Shi-jun LIU Yong-bing 

机构地区：[1]Anhui University of Technology

出　　处：《Journal of Iron and Steel Research International》2003年第4期8-12,共5页

基　　金：Item Sponsored by National Natural Science Foundation of China(59874014);Foundation of Science and Technology for Excellent Youth of Anhui Province of China

摘　　要：The deoxidation behaviors of alloys bearing barium in pipe steel were researched with MgO crucible under argon atmosphere in MoSi 2 furnace at 1 873 K. The total oxygen contents of molten steel, the distribution, size and morphology of deoxidation products in the steel were surveyed. The metamorphic mechanism for deoxidation products of alloy bearing barium was also discussed. The results show that applying alloy bearing barium to the pipe steel, very low total oxygen contents can be obtained, and deoxidation products, which easily float up from molten steel, can be changed into globular shape and uniformly distributed in steel. The equilibrium time of total oxygen is about 25 min, and the terminal total oxygen contents range from 0 002 0 % to 0 002 2 % after treating with SiCa wire. The best deoxidizers are SiAlBaCa and SiAlBaCaSr.The deoxidation behaviors of alloys bearing barium in pipe steel were researched with MgO crucible under argon atmosphere in MoSi 2 furnace at 1 873 K. The total oxygen contents of molten steel, the distribution, size and morphology of deoxidation products in the steel were surveyed. The metamorphic mechanism for deoxidation products of alloy bearing barium was also discussed. The results show that applying alloy bearing barium to the pipe steel, very low total oxygen contents can be obtained, and deoxidation products, which easily float up from molten steel, can be changed into globular shape and uniformly distributed in steel. The equilibrium time of total oxygen is about 25 min, and the terminal total oxygen contents range from 0 002 0 % to 0 002 2 % after treating with SiCa wire. The best deoxidizers are SiAlBaCa and SiAlBaCaSr.

关 键 词：alloy bearing barium DEOXIDATION complex deoxidizer inclusion 

分 类 号：TF769.2[冶金工程—钢铁冶金]