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Translated from Metallurg, No. 9, pp. 77–79, September, 2014.
An experimental study has been made of the effect of the shape of the narrow face of a slab on the deformation of its edge region during hot rolling in a roughing train. It was established that the amount by which the metal in the crack-prone edge region moves toward the middle of the rolled product is minimal when the slab’s narrow face is concave. The results of the study were used to propose an experimental pass system for the vertical rolls of the first stand in the roughing train. The new system changes the mechanism by which the narrow faces of slabs undergo lateral reduction and it reduces the deformation of the edge region. Testing of the experimental pass system revealed a change in the topography of rolled-in-crack-type defects and a decrease in the distance between the defects and the edge of the cold-rolled product.
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G. A. Medvedev, S. A. Lebedev, and V. I. Shurygin, “Determination of the parameters of the rolling operation and adjustment of the vertical rolls of a continuous mill for hot-rolling wide strip,” Proc. 1st Congr. of Rolling-Mill Operators, Chermetinformatsiya, Moscow (1996), pp. 113–116.
I. P. Shabalov, “Factory study of the movement of metal from the sides of a slab to the main surfaces of the rolled plate,” Proizv. Prokata, No. 9, 3–12 (2004).
V. M. Salganik, A. M. Pesin, and D. O. Pustovoitov, “Devising an efficient scheme for the rough rolling of low-alloy steels,” Stal, No. 9, 50–53 (2008).
V. M. Salganik, A. M. Pesin, and D. O. Pustovoitov, “Devising an efficient scheme for the deformation of rolled products in the roughing train of a 2000 mill,” Stal, No. 10, 51–53 (2009).
- Effect of the Form of the Narrow Faces of Slabs and their Deformation During Hot Rolling on the Topography of Surface Defects on the Finished Rolled Product
V. A. Pimenov
A. F. Kopylov
V. P. Glebov
G. N. Kononykhin
- Springer US
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