介绍了武钢炼钢总厂四分厂连铸非稳态浇注过程中大包开浇、中间包开浇、结晶器液位控制及浸入式水口快换和大包下渣检测等方面的设备特点和控制方法。实践证明，通过设备升级、提高控制精度、开发新技术等措施，可把非稳态浇注对生产稳定性和连铸坯质量等的不良影响控制到最低限度。
Features and controlling methods of the equipments in the process of unstable continuous casting of the 4th sub-factory of general steelmaking factory of WISCO were introduced, including ladle free-opening, tundish auto-casting, liquid level controlling and submerged nozzle＇s quick replacing of mould, slag detection of ladle and so on. Measures including updating facilities, improving accurate of controlling system, developing new technology were proved to be effective in practice, they can minimize the bad effect of the unsteady state on the producing stability and slab quality.
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