Heat exchange and 先进材料疑固实验室 Laboratory of Advanced Materials Solidification temperature field One dimensional heat exchange problem Then easily get: T-%0+a210 a1+Q2 (steady state) a and a corresponding to casting and mold. Substitute this equation to previous one ent va) C1+2 1+2 I+a+aerf（a T= 1+2 a1+a2 nced Materals 上降充通大学 SHANGHAI JIAO TONG UNIVERSITYThen easily get: α1 and α2 corresponding to casting and mold. Substitute this equation to previous one Heat exchange and temperature field One dimensional heat exchange problem (steady state)