POSCO’s advanced CASting Technology (PoCAST) is an innovative molten mold flux feeding technology which has been developed to ensure quality of continuously-cast Twinning-Induced Plasticity (TWIP) steel and Ultra-low carbon steels (ULCSs). Stable qualities of ULCS slabs could be achieved by reducing mold flux entrapments by optimizing the range of slag pool depth; this result matches well with entrapment characteristics during 0.6 scale water model tests. Also, uniform solidification at the meniscus with shallower depth of oscillation mark and subsurface hook depth was performed in optimum range of slag pool depth. Thermal plasma melting furnace feeding facility has been developed to control the slag pool depth in the mold by increasing the melting rate. The proposed optimized range of slag pool depth was verified in a commercial trial by realizing thickness control of slag pool depth during ULCS production.

中文翻译：

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熔模熔剂供给技术的渣池深度有效性

POSCO 的先进铸造技术 (PoCAST) 是一种创新的熔融结晶器熔剂供给技术，该技术旨在确保连铸孪晶诱导塑性 (TWIP) 钢和超低碳钢 (ULCS) 的质量。通过优化渣池深度范围来减少保护渣的残留，可以实现 ULCS 板坯的稳定质量；该结果与 0.6 比例水模型测试期间的截留特征非常匹配。此外，在渣池深度的最佳范围内，在具有较浅的振荡痕迹深度和次表面钩深度的弯液面处进行均匀凝固。已开发出热等离子熔化炉进料装置，通过提高熔化速度来控制结晶器中的渣池深度。