Thermodynamic Analysis of the Fast Dephosphorization Process for the Hard-wire Steel
-
摘要: 硬线钢含碳高、磷硫含量低,生产工艺要求苛刻,在冶炼中常出现碳或磷出格而改钢的情况。对转炉快速脱磷工艺的热力学和动力学进行研究,分析了影响快速脱磷效果的因素,认为快速脱磷的要点是延长熔池在低温运行的时间,造出流动性好、有一定氧化性和高碱度的炉渣,确保终点出钢碳、温度和磷的命中率。Abstract: Hard-line steel has higher carbon content,lower sulfur and phosphorus content,so its producing process is quite strict.The off-grade steels often occur because its carbon or phosphorus content was out of grade.On the base of thermodynamics and kinetics analysis of dephosphorization,the main factors of influencing dephosphorization were expounded in this paper.The key point of fast dephosphorization is extending the working time in lower temperature zone and creating the slag of good liquidity,high alkalinity and having a certain degree of oxidizability.So the converting hit rate of carbon,phosphorus and temperature could be obtained.
-
Key words:
- converter /
- hard-wire steel /
- fast dephosphorization
-
点击查看大图
计量
- 文章访问数: 69
- HTML全文浏览量: 13
- PDF下载量: 1
- 被引次数: 0
下载:
