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Information × Registration Number 0304U004509, 0104U003767 , R & D reports Title Development and research of the technology of tube production at tube-rolling lines with longitudinal rolling mills in SТS Joint Stock Company " DTP " popup.stage_title Дослідження та удосконалення технології виробництва труб на трубопрокатних агрегатах зі станами поздовжньої прокатки в умовах ЦБТ ВАТ "ДТЗ" Head Danchenko V.N., Registration Date 27-07-2004 Organization National Metallurgical Academy of Ukraine popup.description2 The analysis of tubes rolling technology on units with longitudinal rolling mills in conditions of Open Society DTP is carried out. Researches are carried out and the basic technological parameters of manufactur-ing combined piercing mandrel are developed. The rational sizes and the form of man-drel nose, parameters of intensive heat remove from mandrel nose are determined due to application of copper inserts, and also mandrel nose from high-strength materials are experimentally received. The method of calculation of conditions of loss of stability non-turning tube in round caliber on a short plug is advanced. The opportunity of reduction of common time of stay of a tube on a plugging field of the unit and reduction of losses of heat by metal is shown due to application of reflecting surfaces. Algorithms of calculation of technological parameters of tube rolling in a round calibers on a plug are developed5635 Product Description popup.authors popup.nrat_date 2020-04-02 Close