Chen Yong, Chen Jianping, Wu Guorong, Yang Subo. Key Technology Development for 360 mm×450 mm Bloom Caster at PISCO[J]. IRON STEEL VANADIUM TITANIUM, 2009, 30(2): 61-67.
Citation:
Chen Yong, Chen Jianping, Wu Guorong, Yang Subo. Key Technology Development for 360 mm×450 mm Bloom Caster at PISCO[J]. IRON STEEL VANADIUM TITANIUM, 2009, 30(2): 61-67.
Chen Yong, Chen Jianping, Wu Guorong, Yang Subo. Key Technology Development for 360 mm×450 mm Bloom Caster at PISCO[J]. IRON STEEL VANADIUM TITANIUM, 2009, 30(2): 61-67.
Citation:
Chen Yong, Chen Jianping, Wu Guorong, Yang Subo. Key Technology Development for 360 mm×450 mm Bloom Caster at PISCO[J]. IRON STEEL VANADIUM TITANIUM, 2009, 30(2): 61-67.
The integrated technologies for 360 mm×450 mm bloom caster and its application results at PISCO (Panzhihua Iron & Steel Co.) were presented.The internal defects of continuous casting bloom such as center looseness, central segregation and center line cracks, were greatly reduced by optimizing secondary cooling scheme, mold electromagnetic stirring (M-EMS) and dynamic soft reduction process.The surface depression defect was remarkably decreased by designing proper mold structure, cooling scheme and mold flux.The production practice in the past two years showed that the rate of central looseness, segregation, shrinkage and crack ratings lower 1.0 was up to 99.03%, the center segregation index of carbon was in the range from 1.01 to 1.05 (mean value of 1.03), and the surface defect-free rate of bloom was up to 99.54%.These achievements have provided PISCO important technology supports to optimize the steel product structure, and to develop the high quality, property, and value added products.
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