EP1878514A4 - PROCESS FOR MANUFACTURING SOLDERED STEEL PIPES - Google Patents

PROCESS FOR MANUFACTURING SOLDERED STEEL PIPES

Info

Publication number
EP1878514A4
EP1878514A4 EP06713910A EP06713910A EP1878514A4 EP 1878514 A4 EP1878514 A4 EP 1878514A4 EP 06713910 A EP06713910 A EP 06713910A EP 06713910 A EP06713910 A EP 06713910A EP 1878514 A4 EP1878514 A4 EP 1878514A4
Authority
EP
European Patent Office
Prior art keywords
speed
rolling
rolling material
mandrel
retained
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Withdrawn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
EP06713910A
Other languages
German (de)
French (fr)
Japanese (ja)
Other versions
EP1878514A1 (en
Inventor
Kenichi Sasaki
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Publication of EP1878514A1 publication Critical patent/EP1878514A1/en
Publication of EP1878514A4 publication Critical patent/EP1878514A4/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Withdrawn legal-status Critical Current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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/78—Control of tube rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2275/00—Mill drive parameters
    • B21B2275/02—Speed
    • B21B2275/06—Product speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B3/02—Rolling special iron alloys, e.g. stainless steel

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Heat Treatment Of Steel (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Metal Extraction Processes (AREA)
  • Metal Rolling (AREA)

Abstract

This invention provides a process for producing a seamless steel pipe that can produce a seamless steel pipe while effectively suppressing a failure of a mandrel bar to be withdrawn after stretch-rolling of a rolling material formed of a high alloy steel containing not less than 5% of Cr. In the production process, a seamless steel pipe comprising a high alloy steel containing not less than 5% of Cr is produced by stretch-rolling a rolling material (3) using a retained mandrel mill (1) for maintaining the speed of a mandrel bar (2) in an axial direction at a constant value while regulating the movement speed of the mandrel bar (2) by the retained mandrel mill (1) so as to satisfy a requirement represented by formula 0.15 ≤ Vb/{(Vi + Ve)/2} ≤ 0.70 wherein Vb represents the movement speed of the mandrel bar (2); Vi represents the speed of the rolling material (3) on the inlet side of the retained mandrel mill (1); and Ve represents the speed of the rolling material (3) on the outlet side of the retained mandrel mill (1).
EP06713910A 2005-02-16 2006-02-16 PROCESS FOR MANUFACTURING SOLDERED STEEL PIPES Withdrawn EP1878514A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005038689 2005-02-16
PCT/JP2006/302769 WO2006088107A1 (en) 2005-02-16 2006-02-16 Process for producing seamless steel pipe

Publications (2)

Publication Number Publication Date
EP1878514A1 EP1878514A1 (en) 2008-01-16
EP1878514A4 true EP1878514A4 (en) 2009-01-07

Family

ID=36916508

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06713910A Withdrawn EP1878514A4 (en) 2005-02-16 2006-02-16 PROCESS FOR MANUFACTURING SOLDERED STEEL PIPES

Country Status (9)

Country Link
US (1) US20080047317A1 (en)
EP (1) EP1878514A4 (en)
CN (1) CN101160184B (en)
BR (1) BRPI0608086A2 (en)
CA (1) CA2598297A1 (en)
MX (1) MX2007009772A (en)
RU (1) RU2357814C1 (en)
WO (1) WO2006088107A1 (en)
ZA (1) ZA200707262B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4900385B2 (en) * 2006-03-28 2012-03-21 住友金属工業株式会社 High alloy rolling mandrel bar, surface treatment method and manufacturing method thereof, and method of operating seamless steel pipe manufacturing apparatus
EP2878390B1 (en) * 2012-07-24 2018-01-31 Nippon Steel & Sumitomo Metal Corporation Seamless metal tube fabrication method
JP6171851B2 (en) 2013-10-29 2017-08-02 Ｊｆｅスチール株式会社 Apparatus row for seamless steel pipe production and method for producing high-strength stainless steel seamless steel pipe for oil wells using the same
RU2713531C1 (en) * 2019-04-08 2020-02-05 Публичное акционерное общество "Трубная металлургическая компания" (ПАО "ТМК") Continuous pipe rolling method
RU2751069C1 (en) * 2020-09-30 2021-07-07 Публичное акционерное общество "Трубная металлургическая компания" (ПАО "ТМК") Method for production of 13cr type martensitic stainless steel seamless pipes

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5853320A (en) * 1981-09-24 1983-03-29 Toshiba Corp Controlling method for wall thickness in mandrel mill
JPS61108409A (en) * 1984-11-01 1986-05-27 Kawasaki Steel Corp Rolling method by mandrel mill
EP0601932A1 (en) * 1992-12-11 1994-06-15 Sumitomo Chemical Company, Limited Method and apparatus for elongating metal tubes by means of a mandrel mill
JP2004330226A (en) * 2003-05-02 2004-11-25 Sumitomo Metal Ind Ltd Manufacturing method of seamless steel pipe

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3392565A (en) * 1965-02-15 1968-07-16 Blaw Knox Co Manufacture of seamless tubing
FR2338093A1 (en) * 1976-01-19 1977-08-12 Vallourec NEW WELDLESS TUBE MANUFACTURING LAMINATOR AND SEAMLESS TUBE MANUFACTURING PLANT INCLUDING SUCH A ROLLER
US4353238A (en) * 1981-05-18 1982-10-12 Vallourec, Societe Anonyme Method for manufacture of seamless metal tubing by continuous rolling
RU2010637C1 (en) * 1991-06-27 1994-04-15 Всесоюзный научно-исследовательский и конструкторско-технологический институт трубной промышленности Tube production method
JPH08300013A (en) * 1995-04-27 1996-11-19 Sumitomo Metal Ind Ltd Burst ripping method in mandrel mill

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5853320A (en) * 1981-09-24 1983-03-29 Toshiba Corp Controlling method for wall thickness in mandrel mill
JPS61108409A (en) * 1984-11-01 1986-05-27 Kawasaki Steel Corp Rolling method by mandrel mill
EP0601932A1 (en) * 1992-12-11 1994-06-15 Sumitomo Chemical Company, Limited Method and apparatus for elongating metal tubes by means of a mandrel mill
JP2004330226A (en) * 2003-05-02 2004-11-25 Sumitomo Metal Ind Ltd Manufacturing method of seamless steel pipe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2006088107A1 *

Also Published As

Publication number Publication date
CN101160184A (en) 2008-04-09
ZA200707262B (en) 2008-09-25
CN101160184B (en) 2011-09-28
CA2598297A1 (en) 2006-08-24
US20080047317A1 (en) 2008-02-28
MX2007009772A (en) 2008-03-10
BRPI0608086A2 (en) 2009-11-10
WO2006088107A1 (en) 2006-08-24
RU2007134439A (en) 2009-03-27
EP1878514A1 (en) 2008-01-16
RU2357814C1 (en) 2009-06-10

Similar Documents

Publication Publication Date Title
EP1361003A3 (en) Method for manufacuturing seamless steel tube
CN104191166B (en) A kind of roll-forming method of aluminium alloy height cylinder thin-walled ring
RU2552805C2 (en) Austenite alloy pipe and method of its manufacturing
CN100554475C (en) Fe-Ni alloy pipe blank and method for producing same
CN101605616B (en) Process for producing seamless steel pipe made of high-chromium high-nickel alloy steel
WO2008111200A1 (en) Seamless steel pipe, hollow spring utilizing seamless steel pipe, and process for manufacturing the same
CN102282273A (en) Process for production of duplex stainless steel pipe
CN103111562B (en) A kind of manufacture method of heavy wall height cylinder annular forging piece
WO2005068098A9 (en) Method for producing seamless pipe
CN115667560A (en) Alloy pipe and method for manufacturing same
JP5217277B2 (en) Manufacturing method of high alloy pipe
CN115176041A (en) Stainless steel seamless steel pipe and method for manufacturing same
CN102257167A (en) Manufacturing method of high alloy pipe
JP2013094826A (en) Seamless-metal-pipe manufacturing method
UA88573C2 (en) Method for production of cold-drawn precision steel pipe
EP2656931B1 (en) PRODUCTION METHOD FOR ROUND STEEL BAR FOR SEAMLESS PIPE COMPRISING HIGH Cr-Ni ALLOY, AND PRODUCTION METHOD FOR SEAMLESS PIPE USING ROUND STEEL BAR
MX2007009772A (en) Process for producing seamless steel pipe.
CN103706736A (en) Method for rolling aluminum alloy rectangular ring blank to form specially-shaped thin-wall ring
CN104841720A (en) Method for producing large-caliber and thick-wall Cr15 bushed bearing by using steel ingot
CN104148550A (en) Method for rolling iron-based high temperature alloy rectangular ring blank to form special-shaped thin wall ring piece
CN100352568C (en) Pipe blank for manufacturing seamless steel pipe and manufacturing method thereof
WO2013171935A1 (en) Method for manufacturing seamless pipe
CN104438989B (en) The method of the two-way associating rolling and shaping of a kind of GCr15 steel thin-walled dark cylinder ring
CN116463555A (en) An ultra-thick specification low-hardness high-strength pipeline steel and its manufacturing method
CN203343205U (en) Thick-wall titanium welded pipe forming machine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20070823

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT

DAX Request for extension of the european patent (deleted)
RBV Designated contracting states (corrected)

Designated state(s): DE FR GB IT

A4 Supplementary search report drawn up and despatched

Effective date: 20081210

RIC1 Information provided on ipc code assigned before grant

Ipc: B21B 17/04 20060101ALI20081204BHEP

Ipc: B21B 17/02 20060101AFI20060830BHEP

17Q First examination report despatched

Effective date: 20090318

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20090929