GB769357A - An improved method of manufacture of longitudinally finned metal tubes - Google Patents

An improved method of manufacture of longitudinally finned metal tubes

Info

Publication number
GB769357A
GB769357A GB5296/55A GB529655A GB769357A GB 769357 A GB769357 A GB 769357A GB 5296/55 A GB5296/55 A GB 5296/55A GB 529655 A GB529655 A GB 529655A GB 769357 A GB769357 A GB 769357A
Authority
GB
United Kingdom
Prior art keywords
fins
tube
manufacture
improved method
feb
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
Application number
GB5296/55A
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.)
Svenska Metallverken AB
Original Assignee
Svenska Metallverken AB
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 Svenska Metallverken AB filed Critical Svenska Metallverken AB
Publication of GB769357A publication Critical patent/GB769357A/en
Expired 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
    • B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls
    • B21C37/202—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls with guides parallel to the tube axis

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Of Metal (AREA)

Abstract

769,357. Making finned tubes particularly for heat-exchangers; extruding. AKTIEBOLAGET SVENSKA METALLVERKEN. Feb. 22, 1955 [Feb. 22, 1954], No. 5296/55. Classes 83 (2) and 83 (4). [Also in Group XIII] A finned metal tube, particularly for heat exchange purposes, has external fins 3, Fig. 1, extending substantially tangentially of the body 1 of the tube and formed integrally therewith by an extrusion process and thereafter the fins are bent down so as to overlie each other, Fig. 2. Narrow spaces 7 of substantially constant width may be left between the fins or the outer edge of each fin may touch the adjacent surface of the underlying fin. The tube is also provided with internal fins 2; these internal fins may alternatively be similar in shape to the external fins. The fins are bent down by a rolling or pressing operation.
GB5296/55A 1954-02-22 1954-02-22 An improved method of manufacture of longitudinally finned metal tubes Expired GB769357A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE769357X 1954-02-22

Publications (1)

Publication Number Publication Date
GB769357A true GB769357A (en) 1957-03-06

Family

ID=20330072

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5296/55A Expired GB769357A (en) 1954-02-22 1954-02-22 An improved method of manufacture of longitudinally finned metal tubes

Country Status (1)

Country Link
GB (1) GB769357A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2559185A1 (en) * 1984-02-06 1985-08-09 Elpan Aps CEILING OR WALL COMPRISING SIDE-BY-SIDE METAL PLATES PROVIDED WITH A COOLING DUCT

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2559185A1 (en) * 1984-02-06 1985-08-09 Elpan Aps CEILING OR WALL COMPRISING SIDE-BY-SIDE METAL PLATES PROVIDED WITH A COOLING DUCT
GB2156063A (en) * 1984-02-06 1985-10-02 Elpan Aps A ceiling or wall mounted space heating or cooling unit
US4679617A (en) * 1984-02-06 1987-07-14 Elpan, Aps Ceiling or wall unit

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