EP0348589A3 - A pilgrim-process rolling mill - Google Patents

A pilgrim-process rolling mill Download PDF

Info

Publication number
EP0348589A3
EP0348589A3 EP89100773A EP89100773A EP0348589A3 EP 0348589 A3 EP0348589 A3 EP 0348589A3 EP 89100773 A EP89100773 A EP 89100773A EP 89100773 A EP89100773 A EP 89100773A EP 0348589 A3 EP0348589 A3 EP 0348589A3
Authority
EP
European Patent Office
Prior art keywords
pilgrim
rolling mill
process rolling
mandrel
spindle
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP89100773A
Other languages
German (de)
French (fr)
Other versions
EP0348589A2 (en
Inventor
Carlo Maccarini
Giorgio Quecchia
Bruno Sardelli
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Group SpA
Original Assignee
Innse Innocenti Engineering SpA
Innse Innocenti Santeustacchio SpA
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 Innse Innocenti Engineering SpA, Innse Innocenti Santeustacchio SpA filed Critical Innse Innocenti Engineering SpA
Publication of EP0348589A2 publication Critical patent/EP0348589A2/en
Publication of EP0348589A3 publication Critical patent/EP0348589A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B21/00—Pilgrim-step tube-rolling, i.e. pilger mills
    • B21B21/04—Pilgrim-step feeding mechanisms

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling Processes (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Crushing And Grinding (AREA)

Abstract

On a pilgrim-process rolling mill, the mandrel (10) is retained axially on the spindle (7) by engaging shoulders (12, 112) formed circumferentially around the mandrel (10) with respective ledges (13,113) on the spindle (7) in abutment relationship therewith.
EP89100773A 1988-06-30 1989-01-18 A pilgrim-process rolling mill Withdrawn EP0348589A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2117888 1988-06-30
IT21178/88A IT1217979B (en) 1988-06-30 1988-06-30 LOW ROLLER OF PELLEGRINO

Publications (2)

Publication Number Publication Date
EP0348589A2 EP0348589A2 (en) 1990-01-03
EP0348589A3 true EP0348589A3 (en) 1990-08-08

Family

ID=11177956

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89100773A Withdrawn EP0348589A3 (en) 1988-06-30 1989-01-18 A pilgrim-process rolling mill

Country Status (2)

Country Link
EP (1) EP0348589A3 (en)
IT (1) IT1217979B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1217978B (en) * 1988-06-30 1990-03-30 Innocenti Santeustacchio Spa PELLEGRINO PASS ROLLING MACHINE FOR HOT ROLLING OF PIPES
IT213865Z2 (en) * 1988-06-30 1990-03-01 Innocenti Santeustacchio Spa CRADLE SPINDLE HOLDER FOR ROLLING MILLS IN PELLEGRINO PASS.
CN103586283B (en) * 2013-11-22 2015-08-19 四川三洲特种钢管有限公司 A kind of plug retaining mechanism

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE518506C (en) * 1929-11-23 1931-02-17 Ewald Roeber Mandrel holder for pilgrim step rolling mills, in which the mandrel is secured against rotation and locked against axial displacement
DE2043812A1 (en) * 1969-09-05 1971-04-08 Innocenti Societa Generale per I Industna Metallurgica e Meccanica; Montagna, Carlo; Mailand (Italien) Pilgrim step rolling mill for the production of seamless metal tubes
DE2003482A1 (en) * 1970-01-27 1971-08-05 Kocks Gmbh Friedrich Mandrel locking device for reversing - rolling mills

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE518506C (en) * 1929-11-23 1931-02-17 Ewald Roeber Mandrel holder for pilgrim step rolling mills, in which the mandrel is secured against rotation and locked against axial displacement
DE2043812A1 (en) * 1969-09-05 1971-04-08 Innocenti Societa Generale per I Industna Metallurgica e Meccanica; Montagna, Carlo; Mailand (Italien) Pilgrim step rolling mill for the production of seamless metal tubes
DE2003482A1 (en) * 1970-01-27 1971-08-05 Kocks Gmbh Friedrich Mandrel locking device for reversing - rolling mills

Also Published As

Publication number Publication date
IT8821178A0 (en) 1988-06-30
IT1217979B (en) 1990-03-30
EP0348589A2 (en) 1990-01-03

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