FR2427859A1 - Procede et dispositif pour la fabrication de raccords courbes dont la section diminue d'une extremite a l'autre - Google Patents

Procede et dispositif pour la fabrication de raccords courbes dont la section diminue d'une extremite a l'autre

Info

Publication number
FR2427859A1
FR2427859A1 FR7914777A FR7914777A FR2427859A1 FR 2427859 A1 FR2427859 A1 FR 2427859A1 FR 7914777 A FR7914777 A FR 7914777A FR 7914777 A FR7914777 A FR 7914777A FR 2427859 A1 FR2427859 A1 FR 2427859A1
Authority
FR
France
Prior art keywords
tapered
ring
pipe
ejected
straight pipe
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
Application number
FR7914777A
Other languages
English (en)
Other versions
FR2427859B1 (fr
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.)
Siekmann & Co Rohrbogenwerk
Original Assignee
Siekmann & Co Rohrbogenwerk
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 Siekmann & Co Rohrbogenwerk filed Critical Siekmann & Co Rohrbogenwerk
Publication of FR2427859A1 publication Critical patent/FR2427859A1/fr
Application granted granted Critical
Publication of FR2427859B1 publication Critical patent/FR2427859B1/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D9/00—Bending tubes using mandrels or the like
    • B21D9/12—Bending tubes using mandrels or the like by pushing over a curved mandrel; by pushing through a curved die

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Abstract

a. L'invention concerne la fabrication de coudes de réduction pour tuyauteries. b. L'invention consiste essentiellement, pour fabriquer des raccords courbés dont la section transversale va en diminuant, à partir d'un tronçon de tuyau cylindrique, à cintrer et élargir celui-ci en l'emmanchant sur un mandrin dont la section va en augmentant dans le sens de l'emmanchement; l'invention englobe le procédé et le dispositif de réalisation. c. L'invention trouve son application principale dans la fabrication de raccords courbes.
FR7914777A 1978-06-08 1979-06-08 Procede et dispositif pour la fabrication de raccords courbes dont la section diminue d'une extremite a l'autre Expired FR2427859B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782825166 DE2825166A1 (de) 1978-06-08 1978-06-08 Verfahren und vorrichtung zum herstellen von rohrbogen mit sich von einem zum anderen ende verjuengendem querschnitt

Publications (2)

Publication Number Publication Date
FR2427859A1 true FR2427859A1 (fr) 1980-01-04
FR2427859B1 FR2427859B1 (fr) 1985-08-30

Family

ID=6041349

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7914777A Expired FR2427859B1 (fr) 1978-06-08 1979-06-08 Procede et dispositif pour la fabrication de raccords courbes dont la section diminue d'une extremite a l'autre

Country Status (4)

Country Link
AT (1) AT365951B (fr)
DE (1) DE2825166A1 (fr)
FR (1) FR2427859B1 (fr)
IT (1) IT1121249B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4989435A (en) * 1989-12-11 1991-02-05 Kabushiki Kaisha Asahi Kinzoku Hogyosho Method and apparatus for manufacturing curved pipe
CN102319783A (zh) * 2011-06-24 2012-01-18 江阴中南重工股份有限公司 等径等壁厚管件的热推弯生产方法
CN107971377A (zh) * 2017-11-03 2018-05-01 北京国电富通科技发展有限责任公司 弯头成型模具及成型方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE472415C (fr) *
DE573890C (de) * 1931-04-25 1933-10-10 Rohrbogenwerk G M B H Verfahren zur Herstellung von Rohrbogen o. dgl.
US2105075A (en) * 1935-10-08 1938-01-11 Tube Turns Inc Method and apparatus for making pipe bends
GB688519A (en) * 1950-05-29 1953-03-11 Tube Turns Inc Improvements in or relating to apparatus for and method of forming a reducing elbow
DE1241684B (de) * 1963-07-13 1967-06-01 Stephanie Klockow Geb Christen Verfahren zur Herstellung eines Rohrbogens
DE1246362B (de) * 1964-04-02 1967-08-03 Stephanie Klockow Geb Christen Rohrbiegevorrichtung
FR2130214A1 (fr) * 1971-03-18 1972-11-03 Fischer Ag Georg
DE2707747A1 (de) * 1977-02-23 1978-08-31 Vahlbrauk Lorowerk Vorrichtung zur herstellung nahtloser rohrbogen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE592521C (de) * 1934-02-08 Jakob Schmitz Verfahren zum Abstreifen des durch Ziehen eines gekruemmten Dornes durch ein gerades Rohrstueck hergestellten Rohrbogens vom gekruemmten Dornende
US2750026A (en) * 1950-05-29 1956-06-12 Nat Cylinder Gas Co Apparatus for producing reducing elbows
DE1056905B (de) * 1957-10-23 1959-05-06 Kocks Gmbh Friedrich Verfahren zum Biegen von Rohren
DE1261102B (de) * 1960-06-23 1968-02-15 Meyer F Verfahren und Vorrichtung zum Herstellen von Rohrbogen mit sich vom einen zum anderen Ende gleichmaessig verjuengendem Querschnitt

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE472415C (fr) *
DE573890C (de) * 1931-04-25 1933-10-10 Rohrbogenwerk G M B H Verfahren zur Herstellung von Rohrbogen o. dgl.
US2105075A (en) * 1935-10-08 1938-01-11 Tube Turns Inc Method and apparatus for making pipe bends
GB688519A (en) * 1950-05-29 1953-03-11 Tube Turns Inc Improvements in or relating to apparatus for and method of forming a reducing elbow
DE1241684B (de) * 1963-07-13 1967-06-01 Stephanie Klockow Geb Christen Verfahren zur Herstellung eines Rohrbogens
DE1246362B (de) * 1964-04-02 1967-08-03 Stephanie Klockow Geb Christen Rohrbiegevorrichtung
FR2130214A1 (fr) * 1971-03-18 1972-11-03 Fischer Ag Georg
DE2707747A1 (de) * 1977-02-23 1978-08-31 Vahlbrauk Lorowerk Vorrichtung zur herstellung nahtloser rohrbogen

Also Published As

Publication number Publication date
AT365951B (de) 1982-02-25
ATA398979A (de) 1981-07-15
DE2825166C2 (fr) 1987-02-05
IT1121249B (it) 1986-03-26
DE2825166A1 (de) 1979-12-13
IT7923261A0 (it) 1979-06-04
FR2427859B1 (fr) 1985-08-30

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse