gram of the secondary cooling control system. The
relevant water distribution equations are given as: a. (V, b.T) = Qil ( V) +Qi2 (b.T) (l)
Qil(v)=aiv2+biv+Ci (2)
Qi2csr: =di cr.-T1) +ei (3)
where, Qi is total water flow; Qil is basic water
flow; Qi2 is compensation water flow of superheat
variation; v is casting speed; b.T is superheat; T; is
casting temperature; T1 is liquid temperature; i is
the number of segments in the secondary cooling
zone; and ai , b,» Ci' d, and e, are the coefficients calculated
by model-'".