ATE429982T1 - METHOD AND ROLLING MILL FOR ROLLING TUBES WITH MANDREL - Google Patents

METHOD AND ROLLING MILL FOR ROLLING TUBES WITH MANDREL

Info

Publication number
ATE429982T1
ATE429982T1 AT06100559T AT06100559T ATE429982T1 AT E429982 T1 ATE429982 T1 AT E429982T1 AT 06100559 T AT06100559 T AT 06100559T AT 06100559 T AT06100559 T AT 06100559T AT E429982 T1 ATE429982 T1 AT E429982T1
Authority
AT
Austria
Prior art keywords
rolling
tubes
mandrel
mandrels
stands
Prior art date
Application number
AT06100559T
Other languages
German (de)
Inventor
Ettore Cernuschi
Original Assignee
Danieli Off Mecc
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 Danieli Off Mecc filed Critical Danieli Off Mecc
Application granted granted Critical
Publication of ATE429982T1 publication Critical patent/ATE429982T1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
    • B21B17/02—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length
    • B21B17/04—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length in a continuous process

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

The following invention relates to a method for rolling tubes on mandrels (2), wherein the final finish of the tube (10) is operated with a pair of stands (8, 9) provided with four rollers (8a, 8b, 8c, 8d; 9a, 9b, 9c, 9d) with a perpendicular arrangement inside each one. High rolling quality is thus obtained, at the same time reducing the stocks of mandrels stored, as the four-roller finishing stands are able to operate on vaster ranges of tube wall thicknesses.
AT06100559T 2005-01-21 2006-01-19 METHOD AND ROLLING MILL FOR ROLLING TUBES WITH MANDREL ATE429982T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000079A ITMI20050079A1 (en) 2005-01-21 2005-01-21 METHOD AND LAMINATE FOR THE LAMINATION OF TUBES WITH SPINDLE

Publications (1)

Publication Number Publication Date
ATE429982T1 true ATE429982T1 (en) 2009-05-15

Family

ID=36120108

Family Applications (1)

Application Number Title Priority Date Filing Date
AT06100559T ATE429982T1 (en) 2005-01-21 2006-01-19 METHOD AND ROLLING MILL FOR ROLLING TUBES WITH MANDREL

Country Status (4)

Country Link
EP (1) EP1683587B1 (en)
AT (1) ATE429982T1 (en)
DE (1) DE602006006483D1 (en)
IT (1) ITMI20050079A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2433876C1 (en) * 2010-06-22 2011-11-20 Открытое акционерное общество "Электростальский завод тяжелого машиностроения" Method of manufacture of seamless pipe and continuous mandrel for its realisation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6228011A (en) * 1985-07-30 1987-02-06 Sumitomo Metal Ind Ltd Mandrel mill
AU6077190A (en) * 1989-08-03 1991-03-11 Albert Calmes Device for elongating and equalizing round hollow blanks for the manufacture of seamless tubes
JP2821323B2 (en) * 1992-09-09 1998-11-05 住友重機械工業株式会社 Manufacturing method of seamless steel pipe and mandrel mill used for it
JP2897652B2 (en) * 1994-09-05 1999-05-31 住友金属工業株式会社 Mandrel mill and tube rolling method using the same

Also Published As

Publication number Publication date
ITMI20050079A1 (en) 2006-07-22
DE602006006483D1 (en) 2009-06-10
EP1683587A1 (en) 2006-07-26
EP1683587B1 (en) 2009-04-29

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties