SECONDARY COOLING OF CONTINUOUSLY-CAST BILLETS Russian patent published in 2012 - IPC B22D11/124 

FIELD: process engineering.

SUBSTANCE: invention relates to metallurgy. Proposed method comprises cooling continuous casting machine support rollers integrated into roller sections by feed coolant into roller central bore. Coolant flow rate is defined by formula V_b=α×B+β×W-δ×L²+ε×L-λ, where V_b is coolant flow rate, m³/h, B is billet width, m, W is billet drawing speed, m/min, L is distance from secondary cooling zone beginning to roller section center, m, α is empiric factor equal to 1.45-4.85 m²/h, β is empiric factor equal to 1.25-4.15 m²·min/h, δ is empiric factor equal to 0.01-0.03 m/h, ε is empiric factor equal to 0.18-0.58 m²/h, λ is empiric factor equal to 0.68-2.28 m²/h.

EFFECT: higher quality of billets and strength of support rollers.

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