摘要
采用BN替代碳质材料 ,作为连铸保护渣的骨架粒子 ,研究开发出一种新型的超低碳钢连铸保护渣·新型连铸保护渣在绝热保温性能、熔化特性、粘性特征、夹杂物吸收能力和结晶性能等方面与传统连铸保护渣十分接近·新型连铸保护渣 ,可以彻底解决超低碳钢结晶器内钢液增碳和铸坯表面渗碳问题 ,而且不会发生超低碳钢结晶器内钢液增硼和铸坯表面渗硼问题·新型骨架粒子BN可以使连铸保护渣JRBW增大、熔化速度降低、粘度减小、Al2 O3 吸收速率增大、熔化温度降低、凝固温度降低。
A new mold powder was developed in continuous casting production. Being skeleton particles in the mold powder,carbon particles were replaced by BN particles. The new mold powder was similar to the conventional mold powder in thermal insulation, melting characteristics,viscous characteristics,inclusion absorption ability and crystallization property. New mold powder can solve the problem of surface carbonization and carbon pick-up of the mold for ULC steel. The new powder has no problems of surface boronization of the mold and boron pick-up for ULC steel. BN particles can increase JRBW and Al 2O 3 absorption rate,and can decrease melting rate,viscosity,melting temperature,and solidification temperature,crystallization temperature of the mold powder.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2003年第4期369-372,共4页
Journal of Northeastern University(Natural Science)
基金
国家自然科学基金资助项目 (5 0 2 0 40 0 5 )
教育部科学技术研究重点项目 (重点 0 10 5 7)
关键词
连铸保护渣
超低碳钢
增碳
绝热保温性能
熔化速度
粘度
Al2O3吸收速率
熔化温度
凝固温度
结晶温度
mold powder
ultra-low carbon steel
carbon pick-up
thermal insulation
melting rate
viscosity
Al 2O 3 absorption rate
melting temperature
solidification temperature
crystallization temperature
