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Improving the Controlled Cooling after Wire Rod Rolling in the Finishing Block of Stands

The thermal regime of rolling in the finishing block of stands and the cooling path after rolling largely determines the mechanical properties of the wire rod. One of the main challenges that must be addressed in the cooling design phase is reduction of temperature non-uniformity over the cross section of a wire rod. The use of adjustable cooling allows getting closer in finishing rolling mill to the regimes of the controlled rolling, thermo mechanical processing and two-phase rolling, which greatly extend the capabilities of the mill in the obtaining of high consumer properties of products. The paper presents the theory and experimental analysis of controlled cooling after rolling in the finishing rolling mill, with the aim to rise temperature heterogeneity over the cross section of the wire rod.