长钢炼铁厂九高炉铁水硅稳定率的提升实践

针对长钢炼铁厂九高炉近两年来不断提高铁水硅稳定率的生产实践进行详细总结,通过强化原燃料管理、推行标准化作业、改善出铁管理、优化休复风方案等措施,使铁水硅稳定率不断提高,由2021年的82%提高到现在的90%以上,超过首钢长钢公司制定的80%目标,为铁钢界面推行的“一罐到底”工艺技术提供了有力保障。

Instability of nc-Si: H Films Fabricated by PECVD

An analysis is given to explain the instability of the high conductivity property of nc-Si:H fabricated. Detailed discussion is carried out concentrating on the conductivity and growth mechanism. It is assumed that the instability of the conductivity of the nc-Si:H stems from two part: the phase transition from nanocrystallites into a-Si:H, and the oxygen incorporation of the thin layer of the film, which contributes more to the effect when the film suffers the exposure to air. The theory is in agreement with the experiment and measurement.

炼铁厂低硅冶炼生产实践

对炼铁厂提高硅稳定率生产实践进行了总结。通过加强原料管理,实行炉温趋势化、精细化、标准化操作等措施,铁水硅稳定率大幅提高,基本控制在90%左右,超过目标计划5%左右。