摘要
针对重轨钢生产中出现的角部纵裂,从结晶器精度、保护渣性能、浇铸温度、结晶器液面波动和工艺操作等因素对角部纵裂的形成进行了分析。研究表明:结晶器精度、保护渣性能不佳和操作不规范是导致角部纵裂发生的主要原因。通过加强结晶器的检查、改进保护渣性能、优化水口结构和规范操作等措施,能有效地控制重轨钢角部纵裂的发生。
In view of the longitudinal corner crack appearing in heavy rail steel factors causing the formation of the corner cracks such as mould precision, property of mould flux, casting temperature, fluctuation of mould level and operating process are analyzed. Results of study show that undesirable mould precision and low quality of mould flux as well as substandard operation are principal factors leading to formation of corner cracks. The corner cracks can be effectively controlled by intensifying the mould examination, improving the properties of the mould flux, optimizing the structure of nozzle and normalization of operation.
出处
《炼钢》
CAS
北大核心
2011年第2期13-15,32,共4页
Steelmaking
关键词
重轨钢
角部纵裂
结晶器
保护渣
heavy rail steel
longitudinal corner crack
crystallizer
mold flux
