METHOD AND SYSTEM FOR PRODUCTION OF SEAMLESS HOT-ROLLED PIPE, CENTRIFUGAL ROLLED TUBE AND USE OF HOLLOW BLOCK PRODUCED BY CENTRIFUGAL CASTING

摘要

FIELD: rolling.;SUBSTANCE: accurately made hollow parts or pipes are subjected to elongation in a hot-forming extruder mill with maintenance of the possible internal structure, which exists or which is formed immediately after casting. Cast hollow part is made by hollow parts casting assembly (10) located in front of hot-elongation machine (20), and transmission link (41, 43, 44) between unit (10) for casting hollow parts and elongator (20) is made sufficiently short, that it is possible to use in process of elongation also heat of casting in mill-elongator (20), note here that transmission link between said hollow parts casting assembly (10) and said elongator (20) is interrupted by furnace (50) while elongator mill (20) is equipped with inner tool.;EFFECT: invention enables to obtain thin-wall pipes, including from composite materials.;14 cl, 2 dwg