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Application filed by Григорій Олександрович Сизоненко, Григорий Александрович СизоненкоfiledCriticalГригорій Олександрович Сизоненко
Priority to UA98084241ApriorityCriticalpatent/UA32933A/en
Publication of UA32933ApublicationCriticalpatent/UA32933A/en
The invention relates to pipe production and can be used at producing the cold rolled pipes. A tubular billet prior to deformation in the region with round pass formed by driving shaped rolls, in which hollow a shell is located, is drafted in the direction of the pass joint by push rolls. Drafting the tubular billet is performed to the value not more than the diameter of round pass, deformation thereof is performed in the region with the round pass without tapers and immovable conical shell. 1
UA98084241A1998-08-041998-08-04Method for longitudinal rolling pipes
UA32933A
(en)