摘要
研究的埋弧精炼渣系能满足重钢 L F埋弧精炼的要求。平均脱硫率为 70 .4 9% ,钢板探伤合格率提高 2 .5 0 % ,- 4 0℃横向冲击值提高近 1倍。精炼渣合适的成分及物性控制范围为 :碱度 3.4～ 4 .2、(Fe O) <1%、(Al2 O3) 16 %～ 2 2 %、(Mg O) 7%～ 10 %、熔点 136 0～ 1380℃、粘度 0 .4 0～ 0 .4 5 Pa· s、表面张力 (490～ 5 2 0 )× 10 - 3N/ m。
The arc submerging refining slag system was developed, which is able to meet the demands of refining in ladle furnace The average desulphurization rate with such slag is 70 49 % The qualification rate of steel plate has been increased by 2 5 % The transversal impact value of steel plate at -40 ℃ was enhanced almost twice The composition and physical properties of the refining slag are: basicity 3 4～4 2, (FeO)<1 %, (Al 2O 3) 16 %~ 22 %, (MgO) 7 %~10 %, melting point 1360~1380 ℃, viscosity 0 40～0 45 Pa·s and surface tension (490~520)×10 -3 N/m
出处
《钢铁》
CAS
CSCD
北大核心
2004年第1期24-26,共3页
Iron and Steel
关键词
LF炉
炼钢
埋弧精炼渣
脱硫率
炉外精炼
ladle furnace, arc submerging refining slag, desulphurization rate
