Державне Підприємство "Український Інститут По Проектуванню Металургійних Заводів"
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Державне Підприємство "Український Інститут По Проектуванню Металургійних Заводів"filedCriticalДержавне Підприємство "Український Інститут По Проектуванню Металургійних Заводів"
Priority to UAU201309695UpriorityCriticalpatent/UA88524U/en
Publication of UA88524UpublicationCriticalpatent/UA88524U/en
A rolling method of pipes on a pipe-rolling plant with Pilger mills includes broaching a billet heated to the temperature of hot deformation into a bottle, the bottle rolling into a roughing pipe by profiling rolls on the Pilger mill mandrel with feed of the bottle in liner rolls in each cycle of the steady-state condition for the value of feed, final rolling of the rear end of bottle with formation of a Pilger head and rolling the latter without feeding, heating the roughing pipe followed by obtaining finished pipe by calibration or reduction, wherein broaching the rear end of bottle is performed with its thinning by 10-20 % of the wall thickness of the main portion of bottle from the side of inner diameter by movement of the mandrel in the direction opposite to the direction of movement of the bottle.
UAU201309695U2013-08-052013-08-05Rolling method of pipes on pipe-rolling plant with pilger mills
UA88524U
(en)
METHOD FOR PRODUCING SEAMLESS PIPES SIZED 426 × 15-60 mm FOR STEAM BOILERS, STEAM PIPELINES AND MANIFOLDERS OF UNITS WITH HIGH AND SUPERCRITICAL STEAM PARAMETERS FROM STEEL 10H9MFB-SH STEEL