【摘要】 本文研究了拉速对方坯内部质量的影响。结果表明随着拉速的降低方坯的中心偏析、疏松得到了改善,中心缩孔有所增大。综合考虑,低拉速有益于普碳钢方坯内部质量的提高。更多还原

【Abstract】 The affection of drawing speed to the internal quality of billet was discussed. The results indicated that the central segregation and central loosen in the billet had been improved and central priority had been worse with the decrease of drawing speed. Comprehensive consideration, low drawing speed is good to the improvement of internal quality.更多还原