摘要
在高效连铸过程中,结晶器的传热效率起着至关重要的作用.在进行加拿大国家自然科学基金资助的高速连铸的战略性研究项目时,在Atlas Steel钢铁公司的方坯连铸机上进行了工业试验,研究高速连铸不锈钢时结晶器的热流变化.试验中,结晶器四壁共安装42个热电偶.不同工艺条件下的温度信号以10Hz的步率记录在计算机中,根据每点的平均温度,针对IHCP(Inverse Heat Conduction Problem)计算不同拉速和不同钢种沿结晶器表面热流分布.并讨论拉速和钢种对结晶器传热的影响.
In view of quality and productivity, the role of heat transfer in the mould during continuous casting can never be overstated. An industrial plant trial was performed in Atlas Steel in Canada to investigate the thermal response of the mould in high speed casting of martensitic and austenitic stainless steel billets, Thermal response of the mould in the casting of high carbon steel was also recorded for comparison . A total of 52 thermocouples were installed on all the four mould walls. Temperatures signals under different operating parameters were recorded and analyzed. The average temperatures down the midface of the mould wall from the measured signals were calculated. Heat flux distributions for different steel grades and casting speeds were calculated. The influence of casting speed and steel grade were then discussed.
出处
《连铸》
2001年第3期15-17,共3页
Continuous Casting
