GB929386A - A device for the manufacture of metallic conduits - Google Patents

A device for the manufacture of metallic conduits

Info

Publication number
GB929386A
GB929386A GB4550561A GB4550561A GB929386A GB 929386 A GB929386 A GB 929386A GB 4550561 A GB4550561 A GB 4550561A GB 4550561 A GB4550561 A GB 4550561A GB 929386 A GB929386 A GB 929386A
Authority
GB
United Kingdom
Prior art keywords
tube
fluid
cylinder
inner tube
chamber
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
GB4550561A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB4550561A priority Critical patent/GB929386A/en
Publication of GB929386A publication Critical patent/GB929386A/en
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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B21D26/045—Closing or sealing means
    • 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
    • B21C37/154—Making multi-wall tubes
    • 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
    • B21C37/22—Making finned or ribbed tubes by fixing strip or like material to tubes
    • B21C37/24—Making finned or ribbed tubes by fixing strip or like material to tubes annularly-ribbed tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

929,386. Making composite tubes; jointing by tube expanding; flanging. L. CAZZANIGA. Dec. 19, 1961, No. 45505/61. Classes 83 (2) and 83 (4). A device for making composite tubes consisting of an inner tube which is expanded by hydraulic pressure into engagement with the inside surface of a surrounding outer tube comprises a chamber 1 in which the tubes are placed, a first end header 12 for adjustably housing a tapered hollow cylinder 11, the interior of which can be vented to the atmosphere, said cylinder engaging in one end of the inner tube 10, a second end header 3 in which is slidably housed inside a chamber 4, a second tapered hollow cylinder 7 which engages in the other end of the inner tube 10 said second cylinder being in permanent communication with a source of hydraulic pressure P. The inner tube may be of steel and the outer tube may have cast iron fins 2<SP>1</SP> and end flanges 2. In operation, after the tube assembly has been positioned and clamped in the chamber 1 fluid pressure is applied from the pump P and the valve 14 is held open until all air is expelled. As the fluid pressure rises the tube 10 shortens as it expands and the end flanges and outer tube follow this movement. The cylinder 7 also follows the tube 10 due to the hydraulic pressure acting on its end face and thus fluid-tight contact with the tube is retained. In a modification the second header includes ball valves 23, Fig. 2, for admitting low pressure fluid through a passage 25 for filling the apparatus with water and at the same time exhausting the air. High pressure fluid is introduced through inlet 26 to effect the jointing operation.
GB4550561A 1961-12-19 1961-12-19 A device for the manufacture of metallic conduits Expired GB929386A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4550561A GB929386A (en) 1961-12-19 1961-12-19 A device for the manufacture of metallic conduits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4550561A GB929386A (en) 1961-12-19 1961-12-19 A device for the manufacture of metallic conduits

Publications (1)

Publication Number Publication Date
GB929386A true GB929386A (en) 1963-06-19

Family

ID=10437473

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4550561A Expired GB929386A (en) 1961-12-19 1961-12-19 A device for the manufacture of metallic conduits

Country Status (1)

Country Link
GB (1) GB929386A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2196890A (en) * 1986-11-05 1988-05-11 Gkn Technology Ltd Hydraulic radial deformation of a tubular member
WO1992013656A1 (en) * 1991-02-01 1992-08-20 Hde Metallwerk Gmbh Device for the hydrostatic shaping of hollow bodies of cold-workable metal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2196890A (en) * 1986-11-05 1988-05-11 Gkn Technology Ltd Hydraulic radial deformation of a tubular member
WO1992013656A1 (en) * 1991-02-01 1992-08-20 Hde Metallwerk Gmbh Device for the hydrostatic shaping of hollow bodies of cold-workable metal

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