摘要
针对冶炼25Cr2Ni4MoV时钒收得率波动较大的情况,基于钒氧化的热力学反应式,分析了合金化时钢液中碳含量、温度及钢水还原时间对钒收得率的影响。结果表明,钒合金化时钢液中的碳含量对钒收得率起主要影响作用,经还原后如果钢液碳含量高于0.10%,那么可以使钒收得率稳定在95%以上。延长还原时间和提高合金化温度对钒收得率影响不大,钒合金化后在钢水中含量稳定,不随时间推移和真空处理而变化。
Aim at large fluctuation of vanadium recovey, rate during 25Cr2Ni4MoV smelting and based on the thermodynamic reaction of vanadium oxidation, the influence of intermediate-carbon content and temperatureof mohen steel as well as the reduction time of molten steel during alloying on vanadium recovery rate was analyzed. The results show that the carbon content in the mohen steel plays an important role in vanadium recovery rate during vanadium alloying. If the carbon content is higher than 0.10% after reduction, the vanadium recovery rate can be stabilized above 95%. However, extending the reduction time and increasing the alloying temperature have little effect on vanadium recovery rate. After alloying, the vanadium content in molten steel is stable, not changing with time lapse and vacuum treatment.
出处
《装备机械》
2017年第1期18-22,共5页
The Magazine on Equipment Machinery
关键词
冶炼
合金化
低钒钢
收得率
Smelting
Alloying
Low Vanadium Steel
Recovery Rate
