JPS5570420A - Forming method for thick walled uo steel pipe - Google Patents

Forming method for thick walled uo steel pipe

Info

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.)
Pending
Application number
JP14332578A
Other languages
Japanese (ja)
Other versions
JPS6043813B2 (en
Inventor
Takeshi Kono
Matsuo Usuda
Toshio Hirokawa
Original Assignee
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP14332578A priority Critical patent/JPS6043813B2/ja
Priority claimed from US06/097,043 external-priority patent/US4294095A/en
Publication of JPS5570420A publication Critical patent/JPS5570420A/en
Publication of JPS6043813B2 publication Critical patent/JPS6043813B2/ja
Expired legal-status Critical Current

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
JP14332578A 1978-11-22 1978-11-22 Expired JPS6043813B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14332578A JPS6043813B2 (en) 1978-11-22 1978-11-22

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP14332578A JPS6043813B2 (en) 1978-11-22 1978-11-22
US06/097,043 US4294095A (en) 1978-11-22 1979-11-23 Process for fabricating heavy wall to pipe

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

Country Status (1)

Country Link
JP (1) JPS6043813B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
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

Cited By (8)

* Cited by examiner, † Cited by third party
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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