FR2294774A2 - Dispositif pour la modification du profil de tubes metalliques a parois minces et comportant un joint plie en forme d'helice - Google Patents

Dispositif pour la modification du profil de tubes metalliques a parois minces et comportant un joint plie en forme d'helice

Info

Publication number
FR2294774A2
FR2294774A2 FR7538876A FR7538876A FR2294774A2 FR 2294774 A2 FR2294774 A2 FR 2294774A2 FR 7538876 A FR7538876 A FR 7538876A FR 7538876 A FR7538876 A FR 7538876A FR 2294774 A2 FR2294774 A2 FR 2294774A2
Authority
FR
France
Prior art keywords
bended
propeller
gasket
modifying
profile
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
FR7538876A
Other languages
English (en)
Other versions
FR2294774B2 (fr
Inventor
Radoslav Stanev Petrov
Stefan Elenkov Zahariev
Ivan Kirilov Karkov
Georgi Vassilev Peychev
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.)
DSO MONTAJI
Original Assignee
DSO MONTAJI
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 DSO MONTAJI filed Critical DSO MONTAJI
Publication of FR2294774A2 publication Critical patent/FR2294774A2/fr
Application granted granted Critical
Publication of FR2294774B2 publication Critical patent/FR2294774B2/fr
Granted legal-status Critical Current

Links

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
    • B21C37/155—Making tubes with non circular section
    • 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
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • 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
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49391—Tube making or reforming

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Duct Arrangements (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
FR7538876A 1974-12-19 1975-12-18 Dispositif pour la modification du profil de tubes metalliques a parois minces et comportant un joint plie en forme d'helice Granted FR2294774A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BG2850474 1974-12-19

Publications (2)

Publication Number Publication Date
FR2294774A2 true FR2294774A2 (fr) 1976-07-16
FR2294774B2 FR2294774B2 (fr) 1978-05-12

Family

ID=3900812

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7538876A Granted FR2294774A2 (fr) 1974-12-19 1975-12-18 Dispositif pour la modification du profil de tubes metalliques a parois minces et comportant un joint plie en forme d'helice

Country Status (8)

Country Link
US (1) US4008596A (fr)
JP (1) JPS51108662A (fr)
DD (1) DD124868A6 (fr)
DE (1) DE2557180A1 (fr)
DK (1) DK569775A (fr)
FI (1) FI753587A (fr)
FR (1) FR2294774A2 (fr)
GB (1) GB1499930A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3504967B2 (ja) * 1994-01-31 2004-03-08 アイシン精機株式会社 非円形断面の曲がり管を製造する方法および装置
US6655182B2 (en) 2001-05-18 2003-12-02 Lindab Ab Apparatus and method for reshaping tubes

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3056447A (en) * 1962-10-02 Can body reshaping means
US3324534A (en) * 1964-08-21 1967-06-13 Joseph H Spurk Method of forming a transition section for connecting a circular tube and a noncircular tube
US3662583A (en) * 1970-02-06 1972-05-16 Charles H Moore Sr Transition members

Also Published As

Publication number Publication date
US4008596A (en) 1977-02-22
GB1499930A (en) 1978-02-01
DK569775A (da) 1976-06-20
FR2294774B2 (fr) 1978-05-12
DE2557180A1 (de) 1976-06-24
FI753587A (fr) 1976-06-20
JPS51108662A (fr) 1976-09-27
DD124868A6 (fr) 1977-03-16

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