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借助FactSage热力学软件分别对1873、1823和1773 K三个不同温度下60Si2MnA弹簧钢液与MnO--SiO2--Al2O3系、CaO--Al2O3--SiO2系和CaO--Al2O3--SiO2--15%MgO系夹杂物间的平衡进行了计算.通过上述计算分析,确定了三个不同温度下分别形成上述低熔点夹杂物时所对应的钢液成分.经过对比还发现:低温更有利于钢液在低溶解氧含量条件下实现上述不同类型夹杂物的低熔点化控制.钢液中生成低熔点SiO2--Al2O3--CaO--15%MgO系夹杂物要比生成低熔点SiO2--Al2O3--CaO系夹杂物所需的钢液Al含量高很多,这在实际生产中更容易控制.
With the help of FactSage thermodynamic software, the mechanical properties of 60Si2MnA spring liquid and MnO - SiO2 - Al2O3 system, CaO - Al2O3 - SiO2 system and CaO - Al2O3 - SiO2 - 15 at different temperatures of 1873, 1823 and 1773 K % MgO inclusions were calculated through the above calculation and analysis to determine the three different temperatures were formed when the low melting point inclusions corresponding to the liquid steel components.After comparison also found that: low temperature is more conducive to molten steel Under the conditions of low dissolved oxygen content, the low melting point control of the above different types of inclusions is realized.The formation of low melting point SiO2 - Al2O3 - CaO - 15% MgO - based inclusions in the molten steel is better than that of low melting point SiO2 - Al2O3 - The Al content of the molten steel required for the -CaO-based inclusions is much higher, which is easier to control in actual production.