WO2008126633A1 - 継目無管の製造方法 - Google Patents

継目無管の製造方法 Download PDF

Info

Publication number
WO2008126633A1
WO2008126633A1 PCT/JP2008/054716 JP2008054716W WO2008126633A1 WO 2008126633 A1 WO2008126633 A1 WO 2008126633A1 JP 2008054716 W JP2008054716 W JP 2008054716W WO 2008126633 A1 WO2008126633 A1 WO 2008126633A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
rolling
seamless pipe
groove
manufacturing
Prior art date
Application number
PCT/JP2008/054716
Other languages
English (en)
French (fr)
Inventor
Kenichi Saito
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 WO2008126633A1 publication Critical patent/WO2008126633A1/ja

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

　マンドレルミルによる延伸圧延工程で管端部に割れが発生することを効果的に防止可能な継目無管の製造方法を提供する。 　本発明に係る継目無管の製造方法は、配設された孔型ロールによって決定される孔型楕円度が下記の式（１）の条件を満足する第１圧延スタンドで管を延伸圧延する工程と、配設された孔型ロールによって決定されるオフセット量Ｓと溝底曲率半径Ｒ１との比Ｓ／Ｒ１が下記の式（２）の条件を満足する第２圧延スタンドで管を延伸圧延する工程と、を含むことを特徴とする。 　１．２≦孔型楕円度≦１．４　・・・（１） 　Ｓ／Ｒ１≦－０．３５・Ｌｎ（Ｘ）＋１．４３　・・・（２） 　ここで、上記式（２）のＸは、第２圧延スタンドにおける溝底圧下率（％）を意味する。
PCT/JP2008/054716 2007-03-30 2008-03-14 継目無管の製造方法 WO2008126633A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007090626A JP2008246535A (ja) 2007-03-30 2007-03-30 継目無管の製造方法
JP2007-090626 2007-03-30

Publications (1)

Publication Number Publication Date
WO2008126633A1 true WO2008126633A1 (ja) 2008-10-23

Family

ID=39863759

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/054716 WO2008126633A1 (ja) 2007-03-30 2008-03-14 継目無管の製造方法

Country Status (2)

Country Link
JP (1) JP2008246535A (ja)
WO (1) WO2008126633A1 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20111754A1 (it) * 2011-09-29 2013-03-30 Danieli Off Mecc Gabbia di laminazione per laminatoio calibratore o riduttore a piu' punti di pressione
CN104785525B (zh) * 2015-04-07 2017-03-01 浙江嘉翔精密机械技术有限公司 一种提高核电蒸汽发生器换热管性能的方法
CN110280594B (zh) * 2019-07-19 2020-06-26 北京科技大学 一种圆管柔性辊弯成型设计方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08276208A (ja) * 1995-04-04 1996-10-22 Sumitomo Metal Ind Ltd マンドレルミル
JP2001113306A (ja) * 1999-10-18 2001-04-24 Sumitomo Metal Ind Ltd 高合金継目無鋼管の製造方法およびそれに用いる圧延用孔型

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08276208A (ja) * 1995-04-04 1996-10-22 Sumitomo Metal Ind Ltd マンドレルミル
JP2001113306A (ja) * 1999-10-18 2001-04-24 Sumitomo Metal Ind Ltd 高合金継目無鋼管の製造方法およびそれに用いる圧延用孔型

Also Published As

Publication number Publication date
JP2008246535A (ja) 2008-10-16

Similar Documents

Publication Publication Date Title
EP1361003A3 (en) Method for manufacuturing seamless steel tube
CN102245320B (zh) 利用冷轧制造无缝金属管的方法
TW200709866A (en) Method for manufacturing very thin wall seamless metal pipe by cold-rolling
WO2009072194A1 (ja) 冷間圧延法による超薄肉金属管の製造方法
WO2011061444A3 (fr) Procédé de fabrication d'une pièce métallique tubulaire
CA2474290A1 (en) Method of manufacturing seamless steel pipe
CN203678902U (zh) Cta焊管成型机组
WO2008126633A1 (ja) 継目無管の製造方法
CN101209458B (zh) 热轧无缝钢管限动芯棒连轧机轧制管材的方法
CN106111754A (zh) 一种薄壁钢管弯管机
CN204035188U (zh) 无缝钢管穿孔机
EA200802416A1 (ru) Прокатный стан с поддерживаемым дорном, предназначенный для бесшовных труб
CN102107213A (zh) 一种石油管生产工艺
EP1878514A4 (en) METHOD FOR PRODUCING A SEAMLESS STEEL TUBE
WO2008123276A1 (ja) 継目無管の製造方法
WO2008123121A1 (ja) 継目無管の製造方法及び孔型ロール
EA200800062A1 (ru) Способ изготовления бесшовного полого изделия из стального круглого слитка (варианты)
RU2006140948A (ru) Способ производства бесшовных горячекатаных труб
CN205217605U (zh) 一种精轧机的轧辊
CN101568395B (zh) 芯棒式无缝管轧机及无缝管的制造方法
WO2008111670A1 (ja) 継目無管の製造方法
WO2010066230A3 (de) Verfahren zur herstellung nahtloser rohre mittels eines drei-walzen-stangenwalzwerks
CN201308907Y (zh) 轧机用轧辊装置
MX2010000390A (es) Dispositivo empujador para perforacion y rodadura y metodo para fabricar un conducto o tubo sin costuras que use dicho dispositivo.
CN205362224U (zh) 一种薄壁无缝钢管热轧机的扎管设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08722112

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08722112

Country of ref document: EP

Kind code of ref document: A1