高拉速小方坯铸机关键技术的研发及应用

Research and application of key technology of high speed billet casting machine

高拉速是小方坯铸机的发展方向,能够提高铸机产能,较好地实现和大转炉炉机匹配的问题。分析了对铸机高拉速影响较大的几个关键技术,包括高效结晶器、高精度振动装置、结晶器保护渣、高压二冷水等,并给出了相应的方案。生产实践表明,采用这些技术后,小方坯铸机拉速能够达到5.0 m/min,铸坯质量良好。

The high casting speed of billet casting machine is the development direction, which can improve the casting machine productivity and better realize the problem of matching with large converter.This paper analyzes several key technologies which have great influence on high casting speed, including high efficiency mould, high precision oscillation device, mold powder and high pressure secondary cold water.The production practice shows that the casting speed of billet casting machine can reach 5.0 m/min and the billet quality is good.