小方坯二冷动态配水模型的研究  

RESEARCH ON BILLET DYNAMIC SECONDARY COOLING WATER MODEL

作　　者：王芳[1] 张炯明[1] 魏小东[1] 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083

出　　处：《冶金丛刊》2010年第6期10-12,18,共4页Metallurgical Collections

摘　　要：建立了小方坯连铸凝固传热过程的二维非稳态数学模型,采取坯龄模型实现了动态配水。对二冷水计算模型计算的动态配水和静态配水进行比较得出拉速变化时动态水量变化较缓和,从而保证铸坯表面温度不发生大的波动。比较目标温度与模型计算的温度,模型计算温度始终在目标温度的周围变动。The two dimensional unsteady state mathematical model of solidification and heat transfer in billet casting was developed. Dynamic secondary cooling water distribution was carried out with residence time model. Compared with static cooling warter distribution, dynamic secondary cooling water distribution was verified to reduce the fluctuation of water flow when the casting speed changed by model calculation. Therefore, the temperature fluctuation of billet surface was not so strong. Comparing surface target temperature with the calculated temperature of model, the calculated temperature was fluctuated around the target temperature.

关 键 词：方坯连铸 动态配水 坯龄模型 

分 类 号：TF777.3[冶金工程—钢铁冶金] O242.1[理学—计算数学]