This model mainly includes several small models for Al-roll and furnace wall etc..By use of the finite difference method,the dispersed linear equations of nonsteady conduction for Al-roll is obtained.

• 本模型主要包括料卷、炉墙等几个小模型。用差分方法得到料卷非稳态导热的高离散化线性方程组，并采用“逐线迭代法”进行求解。