摘要
对紫铜连续铸轧过程铸嘴内高温熔体的温度场与流场进行了数值模拟。结果表明,在铸轧温度不变的情况下,随着铸轧速度的提高,铸轧坯的凝固位置逐渐前移,熔体的流动均匀性增加,但是铸轧速度过高不利于铸轧坯的成型和铸轧的立板;控制铸轧速度不变,铸轧坯凝固位置随着铸轧温度的提高逐渐前移,但铸轧温度对流场的分布影响相对较小。优化的铸轧温度为1 150～1 170℃、铸轧速度为600～1 000mm/min,在该工艺参数下成功实现了工业生产上的T2紫铜连续铸轧板坯制备。
The temperature field and flow field of high temperature melt in the nozzle in the casting-rolling copper process were simulated by the ANSYS software.The results reveal that at a fixed castingrolling temperature,with the increase of casting speed,the solidification position of roll-casting billets is gradually shift to right,and the flow uniformity is increased.However,the over-high rolling speed is harmful for forming of roll-casting billet and roll of the plate.At a given roll-casting speed,with the increase of pouring temperature,roll-casting billet solidification position is shifted to right gradually,however effects on the flow field distribution can be ignored.The optimized processing parameters were presented as follows：roll casting temperature of 1 150 ℃～1 170 ℃and roll casting speed of 600 mm/min～1 000 mm/min.Based on the optimized parameters,the T2 copper continuous roll casting slab was formed successfully.
出处
《特种铸造及有色合金》
CAS
CSCD
北大核心
2014年第2期194-197,共4页
Special Casting & Nonferrous Alloys
关键词
T2紫铜
连续铸轧
温度场
流场
数值模拟
T2Copper
Continuous Roll Casting
Temperature Field
Flow Field
Numerical Simulation
