摘要
分析了 2 0 #钢 2 4 0方坯连铸坯缺陷形成的原因 ,探讨了防止产生缺陷的措施 ,指出 ,加强冶炼控制 ,强化脱氧 ;全程保护浇注 ;调整二冷区的冷却强度以及合理的匹配好注温和拉速 ,是提高大方坯合格率的重要因素。
The causes for the defects of 20 # casting bloom was analysed and some measures of provision was studied in this papers. The practices and studied results are shown that to reinforce control of converter smelting,deoxidizing, to protect the casting from air secondary oxidation, to improve the water cooling intensity at secondary cooling zone and to optimize the relationship of casting temperature with drawing speed are some important factors of raising accepted rate of the bloom.
出处
《湖南冶金》
2001年第3期10-12,共3页
Hunan Metallurgy
关键词
方坯连铸
连铸坯
质量
气泡
夹杂
裂纹
casting bloom of 20 #carbon steel
defect
causes and provision of defect
