WO2008111670A1 - 継目無管の製造方法 - Google Patents
継目無管の製造方法 Download PDFInfo
- 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
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)
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 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)
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)
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 |
-
2007
- 2007-03-15 JP JP2007066064A patent/JP2010131602A/ja not_active Withdrawn
-
2008
- 2008-03-14 WO PCT/JP2008/054714 patent/WO2008111670A1/ja active Application Filing
Patent Citations (3)
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 (2)
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 |
Also Published As
Publication number | Publication date |
---|---|
JP2010131602A (ja) | 2010-06-17 |
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