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Application filed by Віктор Вольфович Перчаник, Виктор Вольфович Перчаник, Євгєній Вікторовіч Гулькін, Евгений Викторович ГулькинfiledCriticalВіктор Вольфович Перчаник
Priority to UA98095054ApriorityCriticalpatent/UA31554A/en
Publication of UA31554ApublicationCriticalpatent/UA31554A/en
The invention relates to the tube production, in particular, to the production of seamless tubes by longitudinal rolling, precisely: to the production of hot-rolled tubes on automatic mills. A method of tube rolling consists of the following. A billet is deformed in the area of deformation formed by two-high pass and fixed mandrel. First reduction of the billet is performed to the plane, which passes through the axes of rolls, after which pressing of wall is carried out with simultaneous increase of its diameter. Pressing of wall with simultaneous increase of its diameter is carried out in such a way that the intensity of deformation would decrease from its maximum value 0.1-0.25 on the plane, which passes through the axes of rolls, to its minimum value in the point of exit of finished tube from the area of deformation.
UA98095054A1998-09-281998-09-28method of tube rolling
UA31554A
(en)