How can I determine the cooling water flow of square billet mold for special steel?
The mould water quantity is calculated according to experience. The cooling water quantity of mould is calculated according to the periphery length of mould:W=2 (L+D) - QkW in mould -- cooling water quantity of mould;L - slab width, mm;D - slab thickness, mm;Qk - water flow per unit length, L/ (min = mm), for billet mold, 2.0~3.0L/ (min. Mm).
Determine the cooling water flow rate according to the cooling water flow rate. The cooling water amount of mould W can be calculated according to the following formula: W=0.0036FV, W - cooling water of mould, m3/h;F - total area of mold water gap, mm2;V - the velocity of cooling water in the water seam, m/s, for the billet mold, the flow speed should be greater than 6m/s, generally take 6~9m/s.
Mold heat balance method. If the heat of the molten steel in the mould is taken away from the cooling water, the heat released by the solidification of the molten steel is equal to the amount taken away by the cooling water
