FI753587A - - Google Patents

Info

Publication number
FI753587A
FI753587A FI753587A FI753587A FI753587A FI 753587 A FI753587 A FI 753587A FI 753587 A FI753587 A FI 753587A FI 753587 A FI753587 A FI 753587A FI 753587 A FI753587 A FI 753587A
Authority
FI
Finland
Application number
FI753587A
Inventor
Radoslav Stanev Petrov
Stefan Elenkov Sachariev
Ivan Kirilov Markov
Georgi Vassilev Pejtschev
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 FI753587A publication Critical patent/FI753587A/fi

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)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Duct Arrangements (AREA)
  • Metal Extraction Processes (AREA)
FI753587A 1974-12-19 1975-12-18 FI753587A (fi)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
FI753587A true FI753587A (fi) 1976-06-20

Family

ID=3900812

Family Applications (1)

Application Number Title Priority Date Filing Date
FI753587A FI753587A (fi) 1974-12-19 1975-12-18

Country Status (8)

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

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
DK569775A (da) 1976-06-20
FR2294774A2 (fr) 1976-07-16
JPS51108662A (fi) 1976-09-27
DE2557180A1 (de) 1976-06-24
FR2294774B2 (fi) 1978-05-12
GB1499930A (en) 1978-02-01
DD124868A6 (fi) 1977-03-16

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Legal Events

Date Code Title Description
FD Application lapsed

Owner name: DSO "MONTAJI"