BRPI0608086A2 - method for fabricating a seamless steel pipe - Google Patents

method for fabricating a seamless steel pipe

Info

Publication number
BRPI0608086A2
BRPI0608086A2 BRPI0608086-3A BRPI0608086A BRPI0608086A2 BR PI0608086 A2 BRPI0608086 A2 BR PI0608086A2 BR PI0608086 A BRPI0608086 A BR PI0608086A BR PI0608086 A2 BRPI0608086 A2 BR PI0608086A2
Authority
BR
Brazil
Prior art keywords
steel pipe
velocity
seamless steel
rolling
rolling mill
Prior art date
Application number
BRPI0608086-3A
Other languages
Portuguese (pt)
Inventor
Kenichi Sasaki
Original Assignee
Sumitomo Metal Ind
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 Ind filed Critical Sumitomo Metal Ind
Publication of BRPI0608086A2 publication Critical patent/BRPI0608086A2/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
    • 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)
  • Metal Extraction Processes (AREA)
  • Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

MéTODO PARA FABRICAR UM TUBO DE AçO SEM COSTURA. A presente invmçáo refere-se a um tubo de aço sem costura que é fabricado de um aço de alta liga que contém pelo menos 5% de Cr enquanto efetivamente impedindo os problemas de retirada de barra de mandril após a laminação ie alongamento de um material que está sendo laminado. Um tubo de aço sem costura de um aço de alta liga que contém pelo menos 5% de Cr é fabricado submetendo um material que está sendo laminado (3) à laminação de alongamento que utiliza um laminador de mandril retido (1) no qual a velocidade de uma barra de mandril (2) na direção axial é mantida constante E nquanto que a velocidade (Vb) da barra de mandril (2), a velocidade (Vi) dc material que está sendo laminado (3) no lado de entrada do laminador de rr andril retido (1), e a velocidade (Ve) do material que está sendo laminado (3) no lado de saída do laminador de mandril retido (1) satisfaz a relação: 0,15 <sym> Vb / {(Vi + Ve) / 2} <sym> 0,70 controlando a velocidade de movimento Vb da barra de mandril (2).METHOD FOR MANUFACTURING A SEWLESS STEEL PIPE. The present invention relates to a seamless steel tube which is fabricated from a high alloy steel containing at least 5% Cr while effectively preventing the problems of chuck bar removal after rolling i.e. is being laminated. A seamless steel pipe of a high alloy steel containing at least 5% Cr is fabricated by subjecting a material being rolled (3) to elongation rolling using a retained mandrel rolling mill (1) at which the speed of a mandrel bar (2) in the axial direction is kept constant and whereas the velocity (Vb) of the mandrel bar (2), the velocity (Vi) of the material being rolled (3) at the inlet side of the rolling mill retained spindle (1), and the velocity (Ve) of the material being laminated (3) on the outlet side of the retained spindle rolling mill (1) meets the ratio: 0.15 <sym> Vb / {(Vi + Ve) / 2} <sym> 0.70 controlling the movement speed Vb of the mandrel bar (2).

BRPI0608086-3A 2005-02-16 2006-02-16 method for fabricating a seamless steel pipe BRPI0608086A2 (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 (1)

Publication Number Publication Date
BRPI0608086A2 true BRPI0608086A2 (en) 2009-11-10

Family

ID=36916508

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0608086-3A BRPI0608086A2 (en) 2005-02-16 2006-02-16 method for fabricating a seamless steel pipe

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
WO2014017372A1 (en) * 2012-07-24 2014-01-30 新日鐵住金株式会社 Seamless metal tube fabrication method, mandrel mill, and auxiliary tools
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

Family Cites Families (9)

* 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
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
RU2010637C1 (en) * 1991-06-27 1994-04-15 Всесоюзный научно-исследовательский и конструкторско-технологический институт трубной промышленности Tube production method
JP2924523B2 (en) * 1992-12-11 1999-07-26 住友金属工業株式会社 Elongation rolling method of metal tube by mandrel mill
JPH08300013A (en) * 1995-04-27 1996-11-19 Sumitomo Metal Ind Ltd Burst ripping method in mandrel mill
JP2004330226A (en) * 2003-05-02 2004-11-25 Sumitomo Metal Ind Ltd Manufacturing method of seamless steel pipe

Also Published As

Publication number Publication date
EP1878514A4 (en) 2009-01-07
CN101160184A (en) 2008-04-09
RU2007134439A (en) 2009-03-27
RU2357814C1 (en) 2009-06-10
EP1878514A1 (en) 2008-01-16
MX2007009772A (en) 2008-03-10
WO2006088107A1 (en) 2006-08-24
CN101160184B (en) 2011-09-28
ZA200707262B (en) 2008-09-25
CA2598297A1 (en) 2006-08-24
US20080047317A1 (en) 2008-02-28

Similar Documents

Publication Publication Date Title
EP1707280A1 (en) Method for producing seamless pipe
EP1361003A3 (en) Method for manufacuturing seamless steel tube
BRPI0608953B8 (en) Production methods of seamless steel pipe for pipe, wall thickness 25 mm or more, with high strength and increased toughness.
US9636727B2 (en) Device for drawing tubular workpiece
CA2646020A1 (en) Method for producing ultra thin wall metallic tube by cold rolling method
CN103056585B (en) Coiling machine reduction gearbox output shaft dead eye method of worn
RU2005140027A (en) METHOD FOR PRODUCING SEAMLESS PIPE
WO2008056540A1 (en) Mandrel mill, its operating method, and seamless pipe manufacturing method
BRPI0607805A2 (en) Method of manufacturing a seamless pipe and cleaning equipment
JP4655768B2 (en) Manufacturing method of ultra-thin metal tube by cold drawing method
JP4506563B2 (en) Cold manufacturing method for ultra-thin seamless metal tubes
RU2002105288A (en) Method for the production of redistribution pipes from hardly deformable grades of steel and alloys with an increased coefficient of linear expansion
MX2007009772A (en) Process for producing seamless steel pipe.
US693119A (en) Drawing tubes.
WO2019138908A1 (en) Shaped steel rolling method, shaped steel manufacturing line, and shaped steel manufacturing method
JP2005118799A (en) Device and method for contracting diameter of metal tube
RU2333053C1 (en) Mandrel for cold pilger rolling
BRPI0612291B1 (en) PROCESS FOR PRODUCING A SEW-FREE STEEL BODY
RU2419497C1 (en) Method of shell rolling at disk mill
CN106660087A (en) Compact plant for rolling seamless tubes
JP2010131602A (en) Method of manufacturing seamless pipe
US999635A (en) Method of reeling tubes.
BR112021021153B1 (en) ROLLING STRAIGHTENING MACHINE AND METHOD OF MANUFACTURING A PIPE OR TUBE OR A BAR USING THE SAME
RU2277024C2 (en) Piercing mill roll
AT85785B (en) Process for the production of pipes with a thin wall or small diameter.

Legal Events

Date Code Title Description
B25A Requested transfer of rights approved

Owner name: NIPPON STEEL CORPORATION (JP)

B25D Requested change of name of applicant approved

Owner name: NIPPON STEEL AND SUMITOMO METAL CORPORATION (JP)

B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: MANTIDO O INDEFERIMENTO UMA VEZ QUE NAO FOI APRESENTADO RECURSO DENTRO DO PRAZO LEGAL