湿法冶金Issue(6)：410-413,424,5.
42CrMoA钢CaO-SiO2-MgO-Al2O3系夹杂物低熔点区域的控制
Control of Low Melting Point Area of Inclusions in CaO-SiO2-MgO-Al2 O3 System for 42CrMoA Steel
巨建涛 1郭艳萍 1折媛 1张朝晖1
作者信息
- 1. 西安建筑科技大学冶金工程学院，陕西西安 710055
- 折叠
摘要
Abstract
In order to control the low melting point area of inclusions in CaO-SiO2-M gO-Al2 O3 system for 42CrMoA steel ,the equilibrium between molten steel and inclusions in CaO-SiO2-MgO-Al2 O3 system were calculated using the thermodynamic calculation software FactSage at 1 873 K .It is found that the low melting point area of inclusions in CaO-SiO2-MgO-20% Al2 O3 system is the largest ,and the contents of CaO ,M gO and Al2 O3 significant influence on the low-melting-point area of inclusions . If the inclusions composition locates in the low melting point area ,the oxide activity should be controlled in the range of CaO 0 .001-0 .1 ,SiO2 0 .001-0 .009 ,M gO 0 .001-0 .09 ,Al2 O3 0 .001-0 .09 .It is also guaranteed that the [O] and [Al] in the molten steel is (5-15) × 10-6 and (1-13) × 10-6 ,respectively .关键词
42CrMoA钢/CaO-SiO2-MgO-Al2 O3 系/夹杂物/热力学/计算/低熔点区域Key words
42CrMoA steel/CaO-SiO2-MgO-Al2 O3/inclusions/thermodynamics/calculation/low melting point area分类
矿业与冶金引用本文复制引用
巨建涛,郭艳萍,折媛,张朝晖..42CrMoA钢CaO-SiO2-MgO-Al2O3系夹杂物低熔点区域的控制[J].湿法冶金,2013,(6):410-413,424,5.
