EP1021257B1 - Verfahren und anlage zur herstellung von konischen rohren - Google Patents

Verfahren und anlage zur herstellung von konischen rohren Download PDF

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Publication number
EP1021257B1
EP1021257B1 EP97934493A EP97934493A EP1021257B1 EP 1021257 B1 EP1021257 B1 EP 1021257B1 EP 97934493 A EP97934493 A EP 97934493A EP 97934493 A EP97934493 A EP 97934493A EP 1021257 B1 EP1021257 B1 EP 1021257B1
Authority
EP
European Patent Office
Prior art keywords
pipe
calibrating rollers
rollers
calibrating
conicity
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
EP97934493A
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English (en)
French (fr)
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EP1021257A1 (de
Inventor
Herman J. J. Moors
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Cofite Sa
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Cofite Sa
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Publication date
Application filed by Cofite Sa filed Critical Cofite Sa
Publication of EP1021257A1 publication Critical patent/EP1021257A1/de
Application granted granted Critical
Publication of EP1021257B1 publication Critical patent/EP1021257B1/de
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/16—Making tubes with varying diameter in longitudinal direction
    • B21C37/18—Making tubes with varying diameter in longitudinal direction conical tubes
    • B21C37/185—Making tubes with varying diameter in longitudinal direction conical tubes starting from sheet material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/0803—Making tubes with welded or soldered seams the tubes having a special shape, e.g. polygonal tubes

Definitions

  • the central axis of the pipe may be kept at a constant level during feeding of the pipe, whereas the height at which welding is performed may vary.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
  • Heat Treatment Of Articles (AREA)
  • Forging (AREA)
  • Heat Treatment Of Steel (AREA)

Claims (7)

  1. Verfahren zum Herstellen kegelstumpfförmiger Rohre aus Metallblechen, die so gebogen werden, daß sie einen Längsschlitz offen lassen, und zwischen die tragenden Flanken von Kalibrierrollen geführt werden, um sie entlang des Schlitzes zu verschweißen, wobei die Vorschubgeschwindigkeit des Rohrs (1) zwischen den Kalibrierrollen (8) größer als die Tangentialgeschwindigkeit der Kalibrierrollen in dem Bereich des Anliegens an dem Rohr ist,
    dadurch gekennzeichnet, daß jede der Flanken der Kalibrierrollen (8) sich über etwa 90° erstreckt, so daß die beiden Flanken einen oberen Abschnitt des zugeführten Rohrs umgreifen, während ein unterer Abschnitt des Rohres, etwa 180°, auf einer Druckplatte (6) ruht, die dieselbe Form und Konizität wie das Rohr aufweist.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Mittelachse des Rohres während des Zuführens des Rohres auf einem konstanten Niveau gehalten wird, während die Höhe, in der das Schweißen durchgeführt wird, variiert.
  3. Verfahren nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß Rohre mit variierender Konizität mittels einer Einstellung der Rotationsgeschwindigkeit der Kalibrierrollen im Verhältnis zu der Vorschubgeschwindigkeit des Rohres hergestellt werden, wobei dieselben Kalibrierrollen verwendet werden.
  4. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Vorschubgeschwindigkeit des Rohres zwischen den Kalibrierrollen eine Funktion der Konizität des Rohres ist.
  5. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das Zuführen des Rohres mittels Schieben oder Ziehen des Rohres durchgeführt wird.
  6. Vorrichtung zum Herstellen kegelstumpfförmiger Rohre aus Metallblechen, die so gebogen werden, daß sie einen Längsschlitz offen lassen, und zusammengedrückt zwischen die tragenden Flanken von Kalibrierrollen (8) eingebracht werden, um so entlang des Schlitzes verschweißt zu werden, wobei die Ausdehnung der tragenden Flanken der Kalibrierrollen (8) kleiner ist als die Länge des zu formenden und verschweißenden Rohres (1),
    dadurch gekennzeichnet, daß jede der Flanken der Kalibrierrollen (8) sich über etwa 90° erstreckt, so daß die beiden Flanken den oberen Abschnitt des Rohres (1) umfassen, während der untere Abschnitt des Rohres, etwa 180°, auf einer Druckplatte (6) ruht, die dieselbe Form und Konizität wie das Rohr (1) aufweist.
  7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß das Verhältnis zwischen der Erstreckung der tragenden Flanke der Kalibrierrollen (8) und der Länge des zu formenden und zu verschweißenden Rohres (1) zwischen 0,05 und 0,5 beträgt.
EP97934493A 1997-07-15 1997-07-15 Verfahren und anlage zur herstellung von konischen rohren Expired - Lifetime EP1021257B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1997/003873 WO1999003611A1 (en) 1997-07-15 1997-07-15 Method and plant for the production of frustoconical pipes

Publications (2)

Publication Number Publication Date
EP1021257A1 EP1021257A1 (de) 2000-07-26
EP1021257B1 true EP1021257B1 (de) 2002-01-23

Family

ID=8166695

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97934493A Expired - Lifetime EP1021257B1 (de) 1997-07-15 1997-07-15 Verfahren und anlage zur herstellung von konischen rohren

Country Status (5)

Country Link
EP (1) EP1021257B1 (de)
AT (1) ATE212257T1 (de)
AU (1) AU3768597A (de)
DE (1) DE69710102D1 (de)
WO (1) WO1999003611A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005077562A1 (en) * 2004-02-16 2005-08-25 Han Young Machinerey Co, Ltd. Method and apparatus for forming tapered steel pipe
KR100847229B1 (ko) 2008-03-29 2008-07-18 주식회사 성훈이엔지 테이퍼관 제작기
CN114401992A (zh) 2019-07-05 2022-04-26 艾欧麦克斯治疗股份公司 结合igsf11（vsig3）的igc2的抗体及其用途
WO2022008027A1 (en) 2020-07-06 2022-01-13 Iomx Therapeutics Ag Antibodies binding igv of igsf11 (vsig3) and uses thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3361319A (en) * 1963-12-27 1968-01-02 Yawata Iron & Steel Co Apparatus for making hollow tubes of metal plates cut in advance
US3452424A (en) * 1966-06-13 1969-07-01 American Mach & Foundry Forming and welding tapered tubes
US3648008A (en) * 1968-12-11 1972-03-07 Nippon Kokan Kk Method of making tapered poles
US4846392A (en) * 1988-06-17 1989-07-11 Hinshaw Experimental Laboratories Limited Partnership Continuously variable speed, die-drawing device and process for metal, composites, and the like, and compositions therefrom

Also Published As

Publication number Publication date
ATE212257T1 (de) 2002-02-15
EP1021257A1 (de) 2000-07-26
AU3768597A (en) 1999-02-10
DE69710102D1 (de) 2002-03-14
WO1999003611A1 (en) 1999-01-28

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