含MnO熔体中MnO活度研究+文献综述
毕业论文关键词：活度；活度系数；TWIP钢；化学平衡法
The activity of MnO in the melt containing MnO
Abstract：In today's society, the car is becoming more and more common, so the problem of environmental pollution caused by automobile is increasingly obvious.Automobile pollution comes mainly from vehicle exhaust, so we mainly solve the problem that the energy-saving emission reduction.So, fuel and automobile materials issues will be the main problem we need to solve in the future.Therefore, TWIP steel has been invented, high strength, quality than ordinarysteel light, so it is reasonable material lightweight car.The Mn element is lively, so in the smelting will cause heavy difficulty.Aiming at the problem of high manganese steel smelting, we need to determine the thermodynamic data of a lot of high manganese steel smelting process.This research is the study of the activity of MnO in MnO melt slag containing, in many activity determination method, according to the experience of previous studies, this experiment is used to measure the chemical equilibrium activity and activity coefficient, MnO, in order to determine the car has laid a solid theoretical foundation for the key process parameters of high manganese steel smelting process and each process step, to determine the AOD with the key process parameters of high manganese steel refining car and provide theoretical guidance for the practice of refining.The results show that: 1600C, components of the activity coefficients of 6.15MnO-45.35SiO2-35.28FeO-3.7CaO in the slag is 7.87 and the activity of MnO is 0.456.
KeyWords：Activity；Activity coefficient；TWIP steel；Chemical equilibrium method
目录
1前言 1
1.1 活度和活度系数[1] 1
1.1.1 活度 1
1.1.2 活度系数 1
1.2 活度的测量方法[2，3] 1
1.2.1 蒸汽压法 1
1.2.2 分配定律法 2
1.2.3 化学平衡法 3
1.2.4 饱和溶解度法 5
1.3 去碳保铬和去碳保锰 5
1.3.1从去碳保铬中联想到去碳保锰 5
1.3.2 薄渣吹氧脱碳保锰[20] 6
1.4 TWIP钢 7
2课题研究的目的和意义 8
2.1研究背景 8
2.2 研究目的 8
2.3 相互作用系数 9
3实验研究方法 11
3.1实验原理 11
3.2 实验原材料 12
3.3 实验设备 13
3.4 实验步骤 13
4 实验结果及分析讨论 14