摘要
在连续铸轧过程中 ,温度分布是影响金属塑性变形的主要因素。轧制变形区温度变化较大 ,平均温度梯度达 2 0 0℃ /cm以上。为了考察这种强变温条件对塑性变形的影响 ,将轧制区温度场简化成线性分布模型 ,并在塑性变形基本方程中引入变温参数 ,导出了塑性变形与温度分布强耦合条件下的接触压力计算模型。
In the continuous casting process, temperataue distribution is a major factor affecting plastic deformation of metals. The variation of temperatare in the rolling deformation zone is great, usually average temperature gradient being above 200 ℃/cm. For the convenience of investigating its influence on plastic deformation, this paper simplifies the temperature field in the rolling zone into a linear distribution model and introduces parameters of temperature variation into the basic equation of plastic deformation, deriving a calculation model for contact pressure under intense coupling conditions of plastic deformafion and temperature distribution. The results obtained by the model are in agreement with actually measured data.
出处
《矿冶工程》
EI
CAS
CSCD
北大核心
2000年第2期48-51,共4页
Mining and Metallurgical Engineering
基金
湖南省自然科学基金资助项目 !(99JJY2 0 52 )
关键词
连续铸轧
温度场
塑性变形
接触压力
计算模型
continuous roll casting
temperature field
plastic deformation
contact pressure