论文部分内容阅读
本文利用热力学原理及数理统计方法中的回归分析法,以AOD炉冶炼18—8型不锈钢工艺为例,讨论AOD炉冶炼过程耗氧量计算,进一步讨论吹炼过程(Ar/O_2)修的确定。 作为冶炼不锈钢钢种为主的AOD炉,问世已近十年,冶炼工艺较为完善。日本曾估计,1978年全世界不锈钢总产量的百分之七十五将由AOD炉生产。但是,目前手动操作AOD炉冶炼过程还是需要两三个阶段,弱点是氩气耗量大,冶炼工艺不稳定。理想的操作方法,应根据炉内钢液中碳含量的降低过程,连续改变氩氧混合气体的比例,采用自动控制操作。为此目的曾根据热力学原理导出氩氧比值随碳变化关系式:
In this paper, the thermodynamic principle and mathematical statistics method of regression analysis, AOD furnace smelting 18-8 stainless steel process as an example to discuss the AOD furnace oxygen consumption during smelting calculation, to further discuss the blowing process (Ar / O_2) repair is determined . As a smelter of stainless steel AOD furnace mainly come out nearly 10 years, smelting process is more perfect. Japan had estimated that in 1978, 75% of the world’s total stainless steel output would be produced by AOD furnaces. However, the manual operation of AOD furnace smelting process still requires two or three stages, the weakness is the argon consumption, smelting process is not stable. The ideal method of operation should be based on the reduction of carbon content in the molten steel in the furnace, continuous change in the ratio of argon and oxygen mixture, the use of automatic control operation. To this end, according to the principle of thermodynamics, the ratio of argon and oxygen is derived according to the relationship between carbon and carbon: