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Gulyaev Y.G.,National Metallurgical Academy of Ukraine | Shifrin E.I.,OAO Trubnaya Metallurgicheskaya Kompaniya | Lube I.I.,OAO Trubnaya Metallurgicheskaya Kompaniya | Garmashev D.Y.,OAO Interpipe Nizhnedneprovskii Truboprokatnyi Zavod | Nikolaenko Y.N.,National Metallurgical Academy of Ukraine
Steel in Translation | Year: 2013

A method is proposed for determining the geometric parameters of the deforming region in rotary-rolling mills. In this method, the change in size of the deforming region due to roller rotation and the supply is described by relatively simple formulas. Results of calculations by the proposed and familiar methods are compared for piercing and rolling mills. The proposed method may be used to correct the calibration parameters of the working rollers and for industrial adjustment of rotary-rolling mills. © 2013 Allerton Press, Inc. Source

Krivchenko Y.S.,Ukrainian State Research and Design Institute of Metal Products | Balakin V.F.,National Metallurgical Academy of Ukraine | Ugryumov Y.D.,OAO Interpipe Nizhnedneprovskii Truboprokatnyi Zavod | Kushchinskii G.N.,OAO Interpipe Nizhnedneprovskii Truboprokatnyi Zavod | And 2 more authors.
Steel in Translation | Year: 2010

Means of reducing the metal consumption in the hot rolling of seamless pipe are considered. The most common is the use of square or round continuous-cast billet. The trimming required for Pilger mills may be reduced by preparation of the front ends of the sleeves in skew rolling and rolling of the rear end at the free section of the mandrel. To expand the range of pipe to D/S = 15-30 for the 200 system with a three-roller mill, grooves created with special liners in the gaps between the rollers have been adopted at OAO Interpipe Nizhnedneprovskii Truboprokatnyi Zavod. In addition, the wall thickness is regulated by means of a hydromechanical clamp. © 2010 Allerton Press, Inc. Source

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