EP0748875B1 - Procédé de fabrication de tubes selon le principe U-O-E - Google Patents

Procédé de fabrication de tubes selon le principe U-O-E Download PDF

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Publication number
EP0748875B1
EP0748875B1 EP96250126A EP96250126A EP0748875B1 EP 0748875 B1 EP0748875 B1 EP 0748875B1 EP 96250126 A EP96250126 A EP 96250126A EP 96250126 A EP96250126 A EP 96250126A EP 0748875 B1 EP0748875 B1 EP 0748875B1
Authority
EP
European Patent Office
Prior art keywords
expansion
reduction
pipes
pipe
tube
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.)
Expired - Lifetime
Application number
EP96250126A
Other languages
German (de)
English (en)
Other versions
EP0748875A1 (fr
Inventor
Gerold Hohl
Gerd Vogt
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.)
Vodafone GmbH
Original Assignee
Mannesmannroehren Werke AG
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 Mannesmannroehren Werke AG filed Critical Mannesmannroehren Werke AG
Publication of EP0748875A1 publication Critical patent/EP0748875A1/fr
Application granted granted Critical
Publication of EP0748875B1 publication Critical patent/EP0748875B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • C21D7/10—Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars
    • C21D7/12—Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars by expanding tubular bodies
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material

Definitions

  • the object of the invention is a method for producing pipes, in particular large pipes, according to the UOE method specify in which the strength and deformation properties in the tube circumferential direction are largely homogenized and certain properties can be adjusted specifically.
  • the above-explained method is also applicable to the three-roll bending method with integrated cold expansion. In contrast to the UOE method, this is less Value on the homogenization as on the attitude of the Strength properties and tube geometry laid.
  • Figure 2 shows a graph of the yield ratio in the tube circumferential direction as a function of the degree of reduction and expansion.
  • the yield ratio R t 0.5 / R m is plotted and on the abscissa the degree of deformation in percent.
  • the dotted straight line 3 is the yield ratio for the starting material sheet. For example, this ratio should be 0.8.
  • the solid line 4 shows the increase in the yield ratio with increasing degree of expansion.
  • the continuation of this curve in the left half of the graph shows the decrease of the yield ratio when the previous reduction is increasingly superimposed by an expansion.
  • the dot-dash line 5 results. This course makes it clear that even with a small reduction, the yield ratio with respect to the initial value of sheet metal drops sharply.
  • FIG. 4 shows the profile of the tension in the production of conduit pipes the conventional method.
  • the solid line starting in the Coordinate origin zero over point A to point B, shows the change the tension in the production.
  • There is some reduction in the O-press here marked by the curve section 6.1.
  • After welding finds one vigorous expansion by means of a mechanical expander instead, characterized here through the curve 6.2, which extends to the point A.
  • After the discharge falls reduce the voltage to the value up to point B. Is in a tube thus produced taken a sample for the tensile test, then the stress / strain follows the dashed curve section 7, wherein at the point F, the yield point and at point C, a further yield strength is achieved.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Steel (AREA)

Claims (2)

  1. Procédé de fabrication de tubes, en particulier de grands tubes, suivant le procédé UOE, dans lequel les tubes sont calibrés par élargissement à froid après le soudage intérieur et extérieur,
    caractérisé en ce que les tubes sont conditionnés par une application combinée d'élargissement à froid suivi d'une réduction à froid, le degré de l'élargissement et de la réduction étant déterminé en fonction du profil d'exigence.
  2. Procédé selon la revendication 1,
    caractérisé en ce que, pour des tubes offshore, on réalise d'abord un élargissement du tube pouvant aller jusqu'à 2 %, puis une réduction à la cote de consigne pouvant aller jusqu'à 4 %.
EP96250126A 1995-06-14 1996-06-11 Procédé de fabrication de tubes selon le principe U-O-E Expired - Lifetime EP0748875B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19522790A DE19522790C2 (de) 1995-06-14 1995-06-14 Verfahren zur Herstellung von Rohren nach dem UOE-Verfahren
DE19522790 1995-06-14

Publications (2)

Publication Number Publication Date
EP0748875A1 EP0748875A1 (fr) 1996-12-18
EP0748875B1 true EP0748875B1 (fr) 2005-01-26

Family

ID=7765055

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96250126A Expired - Lifetime EP0748875B1 (fr) 1995-06-14 1996-06-11 Procédé de fabrication de tubes selon le principe U-O-E

Country Status (5)

Country Link
US (1) US5794840A (fr)
EP (1) EP0748875B1 (fr)
JP (1) JPH091233A (fr)
CA (1) CA2177643C (fr)
DE (2) DE19522790C2 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19602920C2 (de) * 1996-01-22 1998-01-29 Mannesmann Ag Verfahren und Vorrichtung zum Kalibrieren und Richten von nach dem UOE-Verfahren hergestellten Rohren
DE10023488B4 (de) * 1999-05-10 2008-11-20 Europipe Gmbh Verfahren zur Herstellung von geschweißten Stahlrohren hoher Festigkeit, Zähigkeits- und Verformungseigenschaften
DE50014515D1 (de) 1999-05-10 2007-09-06 Europipe Gmbh Verfahren zur herstellung von geschweissten stahlrohren hoher festigkeit, zähigkeits- und verformungseigenschaften
JP3846246B2 (ja) 2001-09-21 2006-11-15 住友金属工業株式会社 鋼管の製造方法
EP1541252B1 (fr) 2002-05-24 2011-05-18 Nippon Steel Corporation Tuyau en acier uoe presentant une excellente resistance aux impacts, et procede de fabrication du tuyau en acier uoe
EP1552271A1 (fr) * 2002-09-20 2005-07-13 Enventure Global Technology Evaluation de formabilite de conduite pour des elements tubulaires extensibles
US7886831B2 (en) 2003-01-22 2011-02-15 Enventure Global Technology, L.L.C. Apparatus for radially expanding and plastically deforming a tubular member
CA2420345A1 (fr) * 2003-03-07 2004-09-07 Georges Bouchard Abri telescopique
GB2415454B (en) 2003-03-11 2007-08-01 Enventure Global Technology Apparatus for radially expanding and plastically deforming a tubular member
CN102000983B (zh) * 2009-09-02 2013-02-06 东明机械株式会社 钢板卷绕装置
JP5966441B2 (ja) * 2012-03-01 2016-08-10 Ｊｆｅスチール株式会社 耐圧潰性能および耐内圧破壊性能に優れた溶接鋼管およびその製造方法
CN111842673A (zh) * 2020-07-22 2020-10-30 中国石油天然气集团有限公司 一种提高直缝焊管管体和管端几何尺寸精度的方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE589465C (de) * 1924-05-28 1933-12-07 Otto Leissner Dr Verfahren zur Herstellung von Hohlkoerpern mit Schweissnaht fuer hohe Druecke
US2235243A (en) * 1939-03-27 1941-03-18 Republic Steel Corp Ferrous metal article and method of producing same
US3535484A (en) * 1967-05-26 1970-10-20 American Cast Iron Pipe Co Method of improving physical properties of electric resistance welded steel pipe
US4018634A (en) * 1975-12-22 1977-04-19 Grotnes Machine Works, Inc. Method of producing high strength steel pipe
JPS632517A (ja) * 1986-06-20 1988-01-07 Sumitomo Metal Ind Ltd Ｕｏｅ管の矯正方法
JPH05279738A (ja) * 1992-04-02 1993-10-26 Nippon Steel Corp 耐摩耗鋼管の製造法

Also Published As

Publication number Publication date
EP0748875A1 (fr) 1996-12-18
US5794840A (en) 1998-08-18
DE59611185D1 (de) 2005-03-03
CA2177643A1 (fr) 1996-12-15
CA2177643C (fr) 2004-07-20
DE19522790A1 (de) 1996-12-19
JPH091233A (ja) 1997-01-07
DE19522790C2 (de) 1998-10-15

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