WO2008123121A1 - Method for producing seamless pipe and hole type roll - Google Patents

Method for producing seamless pipe and hole type roll Download PDF

Info

Publication number
WO2008123121A1
WO2008123121A1 PCT/JP2008/055207 JP2008055207W WO2008123121A1 WO 2008123121 A1 WO2008123121 A1 WO 2008123121A1 JP 2008055207 W JP2008055207 W JP 2008055207W WO 2008123121 A1 WO2008123121 A1 WO 2008123121A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
rolling
hole type
type roll
thetav
Prior art date
Application number
PCT/JP2008/055207
Other languages
French (fr)
Japanese (ja)
Inventor
Yusuke Sendai
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.
Priority to CN200880017785A priority Critical patent/CN101720259A/en
Priority to JP2009509060A priority patent/JPWO2008123121A1/en
Priority to EP08722571A priority patent/EP2135689A4/en
Publication of WO2008123121A1 publication Critical patent/WO2008123121A1/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
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02—Shape or construction of rolls
    • B21B27/024—Rolls for bars, rods, rounds, tubes, wire or the like

Abstract

A method for producing a seamless pipe in which a mandrel bar of the same outside diameter can be employed even when the target thickness of the pipe is different, and partial thickness can be suppressed effectively in the circumferential direction of the pipe. The method for producing a seamless pipe comprises a step for drawing/rolling a pipe while altering only a hole type roll (1) arranged on a finish stand out of a plurality of rolling stands to a hole type roll satisfying the condition of expression (1) and having a different radius R1 of curvature at the bottom of groove for every target thickness when there are a plurality of target thickness wt of pipe after drawing/rolling. -0.1mm≤(1-cosϑ)·S≤0.1mm ...(1) In the expression (1), ϑ is expressed by ϑ=90/i(°) when the number of hole rolls arranged on each rolling stand is i(i=2 through 4), and S means the offset amount (mm) of the hole roll.
PCT/JP2008/055207 2007-03-30 2008-03-21 Method for producing seamless pipe and hole type roll WO2008123121A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN200880017785A CN101720259A (en) 2007-03-30 2008-03-21 Method for producing seamless pipe and hole type roll
JP2009509060A JPWO2008123121A1 (en) 2007-03-30 2008-03-21 Seamless pipe manufacturing method and perforated roll
EP08722571A EP2135689A4 (en) 2007-03-30 2008-03-21 Method for producing seamless pipe and hole type roll

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007091457 2007-03-30
JP2007-091457 2007-03-30

Publications (1)

Publication Number Publication Date
WO2008123121A1 true WO2008123121A1 (en) 2008-10-16

Family

ID=39830618

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/055207 WO2008123121A1 (en) 2007-03-30 2008-03-21 Method for producing seamless pipe and hole type roll

Country Status (4)

Country Link
EP (1) EP2135689A4 (en)
JP (1) JPWO2008123121A1 (en)
CN (1) CN101720259A (en)
WO (1) WO2008123121A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102548676A (en) * 2009-09-29 2012-07-04 住友金属工业株式会社 Multi-roll mandrel mill and method for manufacturing seamless pipe

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5655737B2 (en) * 2011-07-28 2015-01-21 Ｊｆｅスチール株式会社 Seamless steel pipe manufacturing method
CN102873103A (en) * 2012-10-12 2013-01-16 衡阳华菱钢管有限公司 Tandem mill central line adjusting method and device
CN104785525B (en) * 2015-04-07 2017-03-01 浙江嘉翔精密机械技术有限公司 A kind of method improving nuclear steam generator performance of heat exchange tubes

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6186020A (en) 1984-10-04 1986-05-01 Kawasaki Steel Corp Method and device for controlling rolling reduction of mandrel mill
JPH05237514A (en) 1992-02-26 1993-09-17 Sumitomo Metal Ind Ltd Method and device for rolling by mandrel mill
JPH06179003A (en) 1992-12-11 1994-06-28 Sumitomo Metal Ind Ltd Method and device for stretch reducing metallic tube by mandrel mill
JPH0871610A (en) 1994-09-05 1996-03-19 Sumitomo Metal Ind Ltd Mandrel mill and method for rolling tube using the same
JPH11123409A (en) * 1997-10-15 1999-05-11 Sumitomo Metal Ind Ltd Device for changing mill stand and changing method therefor
WO2004085086A1 (en) * 2003-03-26 2004-10-07 Sumitomo Metal Industries, Ltd. Method of manufacturing seamless tube

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2718363B2 (en) * 1994-03-09 1998-02-25 住友金属工業株式会社 Seamless tube thickness control method
JP2985719B2 (en) * 1995-04-04 1999-12-06 住友金属工業株式会社 Mandrel mill
JPH0938711A (en) * 1995-07-31 1997-02-10 Kawasaki Steel Corp Method for controlling drawing-rolling of steel pipe
JP4003463B2 (en) * 2002-01-28 2007-11-07 住友金属工業株式会社 Seamless steel pipe manufacturing method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6186020A (en) 1984-10-04 1986-05-01 Kawasaki Steel Corp Method and device for controlling rolling reduction of mandrel mill
JPH05237514A (en) 1992-02-26 1993-09-17 Sumitomo Metal Ind Ltd Method and device for rolling by mandrel mill
JPH06179003A (en) 1992-12-11 1994-06-28 Sumitomo Metal Ind Ltd Method and device for stretch reducing metallic tube by mandrel mill
JPH0871610A (en) 1994-09-05 1996-03-19 Sumitomo Metal Ind Ltd Mandrel mill and method for rolling tube using the same
JPH11123409A (en) * 1997-10-15 1999-05-11 Sumitomo Metal Ind Ltd Device for changing mill stand and changing method therefor
WO2004085086A1 (en) * 2003-03-26 2004-10-07 Sumitomo Metal Industries, Ltd. Method of manufacturing seamless tube

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2135689A4 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102548676A (en) * 2009-09-29 2012-07-04 住友金属工业株式会社 Multi-roll mandrel mill and method for manufacturing seamless pipe
EP2484457A1 (en) * 2009-09-29 2012-08-08 Sumitomo Metal Industries, Ltd. Multi-roll mandrel mill and method for manufacturing seamless pipe
EP2484457A4 (en) * 2009-09-29 2013-06-05 Nippon Steel & Sumitomo Metal Corp Multi-roll mandrel mill and method for manufacturing seamless pipe
US8601844B2 (en) 2009-09-29 2013-12-10 Nippon Steel & Sumitomo Metal Corporation Multi-roll mandrel mill and method of producing seamless tubes
CN102548676B (en) * 2009-09-29 2014-07-30 新日铁住金株式会社 Multi-roll mandrel mill and method for manufacturing seamless pipe

Also Published As

Publication number Publication date
CN101720259A (en) 2010-06-02
EP2135689A4 (en) 2011-11-02
JPWO2008123121A1 (en) 2010-07-15
EP2135689A1 (en) 2009-12-23

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