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SE500137C2 - Corrosion-resistant lining clapping of tubes avoiding distort - utilising inner tube, explosively expanding and joined to outer tube, for high mechanical strength - Google Patents

Corrosion-resistant lining clapping of tubes avoiding distort - utilising inner tube, explosively expanding and joined to outer tube, for high mechanical strength

Info

Publication number
SE500137C2
SE500137C2 SE9201121A SE9201121A SE500137C2 SE 500137 C2 SE500137 C2 SE 500137C2 SE 9201121 A SE9201121 A SE 9201121A SE 9201121 A SE9201121 A SE 9201121A SE 500137 C2 SE500137 C2 SE 500137C2
Authority
SE
Sweden
Prior art keywords
tube
inner tube
explosive charges
charges
clapping
Prior art date
Application number
SE9201121A
Other languages
Swedish (sv)
Other versions
SE9201121D0 (en
SE9201121L (en
Inventor
Per Ingemar Persson
Original Assignee
Exploweld 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 Exploweld Ab filed Critical Exploweld Ab
Priority to SE9201121A priority Critical patent/SE500137C2/en
Publication of SE9201121D0 publication Critical patent/SE9201121D0/en
Priority to EP93904468A priority patent/EP0626895B1/en
Priority to ES93904468T priority patent/ES2081209T3/en
Priority to PCT/SE1993/000136 priority patent/WO1993016836A1/en
Priority to DE69300588T priority patent/DE69300588T2/en
Priority to US08/290,839 priority patent/US5470013A/en
Publication of SE9201121L publication Critical patent/SE9201121L/en
Publication of SE500137C2 publication Critical patent/SE500137C2/en
Priority to NO943064A priority patent/NO300056B1/en

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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
    • B21D39/046—Connecting tubes to tube-like fittings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/06—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of high energy impulses, e.g. magnetic energy
    • B23K20/08—Explosive welding
    • B23K20/085—Explosive welding for tubes, e.g. plugging

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

The cladding method comprises placing explosive charges (3) in contact with the inner surface of the inner tube. The inner tube is filled with a pressure transmitting medium e.g. water. All the explosive charges are detonated simultaneously to produce local metallurgical bonds (6) and to expand the inner tube into abutment with the outer tube. The charges are pref. sized to produce a metallurgical bond 1-8 cm2. The explosive charges may be applied in strings which extend axially or helically. The explosive charge(s) may be inside the tube to amplify the pressure wave and improve the effectiveness in expanding the inner tube. A gap (8) is defined between the inner and outer tubes before detonation. The gap is evacuated to 1 mbar before detonating the explosive charges. The explosive charges are placed in plastic, paper or rubber hose or onto a plastic or rubber sheet before insertion into the tube.

Description

500 157 f 4, och infästningsbanden med, 5. 500 157 f 4, and the fastening straps with, 5.

Claims (1)

1. 3 i -,soo 137 Patentansprák Sätt vid applicering och lägesfixering av sprängännesladdningar inuti rör, k ä n n e t e c k n a t a v, att sprängämnesladdning- arna fästes pà en folie av plast eller gunmiduk, vilken hopfästes till en tät slang och införes i röret, samt vidare k ä n n e - t e c k n a t a v att slangen fylles med vatten eller gas med tillräckligt tryck för att pressa ut slangen med de till denna fästade laddningama mot rörets innervägg. Sätt enligt patentanspráket 1, k ä n n e t e c k n a t a v, att sprängämnesladdningar, vilka skall placeras pà annat ställe än mot rörets inneryta, t. ex. centralt, fästes till slangens väggar medelst distansband av plast eller gurmiduk.1. 3 i -, soo 137 Patent claim When applying and positioning explosive charges inside pipes, characterized in that the explosive charges are attached to a foil of plastic or gunmid cloth, which is attached to a tight hose and inserted into the pipe, and further k This means that the hose is filled with water or gas with sufficient pressure to press the hose with the charges attached to it against the inner wall of the pipe. Method according to patent claim 1, characterized in that explosive charges, which are to be placed elsewhere than against the inner surface of the pipe, e.g. centrally, attached to the walls of the hose by means of spacers made of plastic or gourmet cloth.
SE9201121A 1992-02-21 1992-04-08 Corrosion-resistant lining clapping of tubes avoiding distort - utilising inner tube, explosively expanding and joined to outer tube, for high mechanical strength SE500137C2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE9201121A SE500137C2 (en) 1992-04-08 1992-04-08 Corrosion-resistant lining clapping of tubes avoiding distort - utilising inner tube, explosively expanding and joined to outer tube, for high mechanical strength
EP93904468A EP0626895B1 (en) 1992-02-21 1993-02-19 A method of cladding tubes
ES93904468T ES2081209T3 (en) 1992-02-21 1993-02-19 PROCEDURE FOR COATING TUBES.
PCT/SE1993/000136 WO1993016836A1 (en) 1992-02-21 1993-02-19 A method of cladding tubes
DE69300588T DE69300588T2 (en) 1992-02-21 1993-02-19 METHOD FOR COVERING TUBES.
US08/290,839 US5470013A (en) 1992-02-21 1993-02-19 Method of cladding tubes
NO943064A NO300056B1 (en) 1992-02-21 1994-08-19 Method of feeding tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9201121A SE500137C2 (en) 1992-04-08 1992-04-08 Corrosion-resistant lining clapping of tubes avoiding distort - utilising inner tube, explosively expanding and joined to outer tube, for high mechanical strength

Publications (3)

Publication Number Publication Date
SE9201121D0 SE9201121D0 (en) 1992-04-08
SE9201121L SE9201121L (en) 1993-10-09
SE500137C2 true SE500137C2 (en) 1994-04-25

Family

ID=20385900

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9201121A SE500137C2 (en) 1992-02-21 1992-04-08 Corrosion-resistant lining clapping of tubes avoiding distort - utilising inner tube, explosively expanding and joined to outer tube, for high mechanical strength

Country Status (1)

Country Link
SE (1) SE500137C2 (en)

Also Published As

Publication number Publication date
SE9201121D0 (en) 1992-04-08
SE9201121L (en) 1993-10-09

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