摘要
根据马钢生产高强度管线钢的需求,结合CaO-Al_2O_3-SiO_2相图12CaO·7Al_2O_3生成区域,开发了管线钢用钢包精炼渣系(%:55～60CaO、7～12SiO_2、25～30Al_2O_3、4～8MgO)。300 t LF精炼实践表明,该精炼渣的平均脱硫率为73.2%,钢中终点硫含量可控制在0.002%以下;而且该渣系具有较好的吸收夹杂物的能力,精炼后钢中Alt-Als含量较低,为0.002%～0.013%。
According to the requirement of production for high strength pipe line steels at Masteel and combined with the forming region of 12CAO ·7Al2O3 of CaO-Al2O3-SiO2 phase diagram, the ladle refining slag series （% ： 55 - 60CaO, 7 - 12SiO2, 25 -30Al2O3, 4 - 8 MgO） for pipe line tube has been developed and applied. 300 t LF refining practice shows that with using the refining slag series, the average desulphurization rate is 73.2% , the end sulphur content in steel is controlled less than 0. 002% ; and the slag series has nice capability to absorb inclusions, the Alt - Als content in steel is lower, i.e. 0.002% -0.013%.
出处
《特殊钢》
北大核心
2010年第3期27-29,共3页
Special Steel
关键词
管线钢
精炼渣
脱硫率
夹杂物
Pipe Line Steel, Refining Slag, Desulphurization Rate, Inclusions
