关键词: 高拉速, 热流, 温度分布, 镀层, 水量

Abstract: Based on high speed continuous casting process of low carbon steel in SGJT，a three-dimensional finite-element heat-transfer model was established by ANSYS to predict temperature distribution of mold copper during high speed continuous casting. The results showed that the effect of backup plate could be neglected. An increase of temperature occurred around mold bottom and the extent of growth increased as casting speed rises. Increasing casting speed leaded to higher temperatures, but the increment decreased. The highest center temperature of hot copper surface at casting speed 2.3 m/min was 328.0 ℃, occurring just 10 mm below the meniscus. Nickel layer bringed a higher temperature and had a positive relation to thickness and casting speed. Increasing water flow rate could reduce the temperature of copper plate within a certain range.

Key words: high speed casting, heat flux, temperature distribution, coating layer, water flow rate