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WO2008111670A1 - 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
WO2008111670A1
WO2008111670A1 PCT/JP2008/054714 JP2008054714W WO2008111670A1 WO 2008111670 A1 WO2008111670 A1 WO 2008111670A1 JP 2008054714 W JP2008054714 W JP 2008054714W WO 2008111670 A1 WO2008111670 A1 WO 2008111670A1
Authority
WO
WIPO (PCT)
Prior art keywords
rolling
rolling stand
pipe
groove perimeter
seamless pipe
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.)
Ceased
Application number
PCT/JP2008/054714
Other languages
English (en)
French (fr)
Inventor
Kouji Nakaike
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 WO2008111670A1 publication Critical patent/WO2008111670A1/ja
Anticipated expiration legal-status Critical
Ceased 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
    • 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の外面に生じ易い焼き付きを効果的に防止することができる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、下記の式（１）～式（３）をそれぞれ満足する第１～第３圧延スタンドで管を延伸圧延する工程を含むことを特徴とする。 第１圧延スタンドの孔型周長／第１圧延スタンド入側の管外周長≧０．９２・・（１） 第２圧延スタンドの孔型周長／第１圧延スタンドの孔型周長≧０．９５・・（２） 第３圧延スタンドの孔型周長／第２圧延スタンドの孔型周長≧０．９５・・（３）
PCT/JP2008/054714 2007-03-15 2008-03-14 継目無管の製造方法 Ceased WO2008111670A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-066064 2007-03-15
JP2007066064A JP2010131602A (ja) 2007-03-15 2007-03-15 継目無管の製造方法

Publications (1)

Publication Number Publication Date
WO2008111670A1 true WO2008111670A1 (ja) 2008-09-18

Family

ID=39759598

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/054714 Ceased WO2008111670A1 (ja) 2007-03-15 2008-03-14 継目無管の製造方法

Country Status (2)

Country Link
JP (1) JP2010131602A (ja)
WO (1) WO2008111670A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103447303A (zh) * 2013-08-20 2013-12-18 莱芜钢铁集团有限公司 一种热轧圆钢用成品孔型
CN104785525A (zh) * 2015-04-07 2015-07-22 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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0857506A (ja) * 1994-08-23 1996-03-05 Sumitomo Metal Ind Ltd マンドレルミル
JP2003010907A (ja) * 2001-06-28 2003-01-15 Kawasaki Steel Corp 継目無鋼管のマンドレルミル圧延方法
JP2006272340A (ja) * 2005-03-28 2006-10-12 Sumitomo Metal Ind Ltd マンドレルミル圧延方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0857506A (ja) * 1994-08-23 1996-03-05 Sumitomo Metal Ind Ltd マンドレルミル
JP2003010907A (ja) * 2001-06-28 2003-01-15 Kawasaki Steel Corp 継目無鋼管のマンドレルミル圧延方法
JP2006272340A (ja) * 2005-03-28 2006-10-12 Sumitomo Metal Ind Ltd マンドレルミル圧延方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103447303A (zh) * 2013-08-20 2013-12-18 莱芜钢铁集团有限公司 一种热轧圆钢用成品孔型
CN104785525A (zh) * 2015-04-07 2015-07-22 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
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

Also Published As

Publication number Publication date
JP2010131602A (ja) 2010-06-17

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