结合轻压下效率的理论计算式，考察了钢种、板坯断面对连铸板坯轻压下效率的影响规律。结果表明：压下效率与板坯宽度、厚度呈线性增加关系，板坯宽度每增加15%，压下效率增加约4%；板坯厚度增加15%，压下效率增加约32%；钢种的两相区温度宽度越小，压下效率越高；板坯宽度与钢种对压下效率的影响较小，板坯厚度对压下效率的影响大。
Based on the theoretical expression of reduction efficiency, the effects of steel grade and slab size on reduction efficiency were investigated. The results show that the reduction efficiency increases linearly with the increase of slab width, which increased by 4% as the width of slab increased by 15%. The value of reduction efficiency increases by 32% as the slab thickness increases by 15%. And the reduction efficiency becomes larger with the decrease of temperature range between liquidus temperature and solidus temperature. It also can be concluded that reduction efficiency was influenced by slab thickness greatly, and slab width and steel grade have little effect on reduction efficiency.
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