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 UAU201308584UpriorityCriticalpatent/UA88197U/en
Publication of UA88197UpublicationCriticalpatent/UA88197U/en
Disclosed is a rolling method for pipes on a pipe-rolling plant with Pilger rolling mills, in which a shell of a heated round continuously cast blank is pierced in a rotary piercer on a short mandrel, then the shell is rolled in a rough pipe by profiling rolls on the mandrel of Pilger rolling mills. At piercing the rear end of shell the short mandrel is moved in the direction opposite to axial movement of the shell increasing its inner diameter up to the diameter of middle part. Rolling the shell in the rough pipe on Pilger rolling mill is carried on the mandrel, whose diameter is determined by the expression: EMBED Equation.3 mm where EMBED Equation.3 - piercer mandrel diameter, mm; EMBED Equation.3 - rolling value of the rear end of shell on mandrel, %.
UAU201308584U2013-07-082013-07-08Rolling method for pipes on pipe-rolling plant with pilger rolling mills
UA88197U
(en)