JPS5570420A - Forming method for thick walled uo steel pipe - Google Patents
Forming method for thick walled uo steel pipeInfo
- Publication number
- JPS5570420A JPS5570420A JP14332578A JP14332578A JPS5570420A JP S5570420 A JPS5570420 A JP S5570420A JP 14332578 A JP14332578 A JP 14332578A JP 14332578 A JP14332578 A JP 14332578A JP S5570420 A JPS5570420 A JP S5570420A
- Authority
- JP
- Japan
- Prior art keywords
- punch
- gap
- breadth
- formation
- height
- 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.)
- Granted
Links
Abstract
PURPOSE: To control the gap at the butting part after the O-formation so as to be suitable for next welding work, by employing the U-punch being provided with a special shape and the variable height and breadth, at forming the thick walled UO steel pipe, and by adjusting the ratio between height and breadth of U-punch, correspondingly to the thickness, strength, diameter, etc., of the material to be formed.
CONSTITUTION: The thick wall UO steel pipe forming machine consists of the side punch 1, bottom punch 5, block 3, spacer 4, punch spacer 6, etc. The shape of the punch is specified to satisfy the formula (where, B is a half of the punch breadth, D is the outer diameter of the pipe, t is thickness of the material, all in mm unit); besides, the punch height H and/or punch breadth 2B are made variable. When the gap of the butting part after O-formation carried out corespondingly to thickness, diameter of the material, is smaller than the aim gap, H/2B is lessened, and when the gap is larger than the aim gap, H/2B is enlarged by setting the variable punch height and punch breadth, so as to make the gap equal to the gap; and then, O- formation is carried out following to U-formation.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14332578A JPS6043813B2 (en) | 1978-11-22 | 1978-11-22 | Thick wall UO steel pipe forming method |
US06/097,043 US4294095A (en) | 1978-11-22 | 1979-11-23 | Process for fabricating heavy wall to pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14332578A JPS6043813B2 (en) | 1978-11-22 | 1978-11-22 | Thick wall UO steel pipe forming method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5570420A true JPS5570420A (en) | 1980-05-27 |
JPS6043813B2 JPS6043813B2 (en) | 1985-09-30 |
Family
ID=15336154
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14332578A Expired JPS6043813B2 (en) | 1978-11-22 | 1978-11-22 | Thick wall UO steel pipe forming method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6043813B2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004141936A (en) * | 2002-10-25 | 2004-05-20 | Jfe Steel Kk | Uoe steel tube manufacturing method |
WO2005102549A1 (en) * | 2004-04-21 | 2005-11-03 | Sumitomo Metal Industries, Ltd. | Punch device for u-press in uoe steel tube manufacturing process |
US7425688B2 (en) | 2004-05-07 | 2008-09-16 | Dbk David + Baader Gmbh | Heating assembly for a tumble dryer |
US20110265536A2 (en) * | 2008-05-06 | 2011-11-03 | Thyssenkrupp Steel Europe Ag | Supporting Core for Producing Hollow Profiled Elements |
US8371040B2 (en) | 2003-12-02 | 2013-02-12 | Dbk David + Baader Gmbh | Cover for a clothes dryer and assembling method thereof |
CN106132577A (en) * | 2014-03-31 | 2016-11-16 | 杰富意钢铁株式会社 | Bending and stamping mould |
-
1978
- 1978-11-22 JP JP14332578A patent/JPS6043813B2/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004141936A (en) * | 2002-10-25 | 2004-05-20 | Jfe Steel Kk | Uoe steel tube manufacturing method |
US8371040B2 (en) | 2003-12-02 | 2013-02-12 | Dbk David + Baader Gmbh | Cover for a clothes dryer and assembling method thereof |
WO2005102549A1 (en) * | 2004-04-21 | 2005-11-03 | Sumitomo Metal Industries, Ltd. | Punch device for u-press in uoe steel tube manufacturing process |
CN100415401C (en) * | 2004-04-21 | 2008-09-03 | 住友金属工业株式会社 | Punch device for u-press in uoe steel tube manufacturing process |
US7425688B2 (en) | 2004-05-07 | 2008-09-16 | Dbk David + Baader Gmbh | Heating assembly for a tumble dryer |
US20110265536A2 (en) * | 2008-05-06 | 2011-11-03 | Thyssenkrupp Steel Europe Ag | Supporting Core for Producing Hollow Profiled Elements |
US8881572B2 (en) * | 2008-05-06 | 2014-11-11 | Thyssenkrupp Steel Europe Ag | Supporting core for producing hollow profiled elements |
CN106132577A (en) * | 2014-03-31 | 2016-11-16 | 杰富意钢铁株式会社 | Bending and stamping mould |
Also Published As
Publication number | Publication date |
---|---|
JPS6043813B2 (en) | 1985-09-30 |
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