SE500135C2 - 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
SE500135C2
SE500135C2 SE9200534A SE9200534A SE500135C2 SE 500135 C2 SE500135 C2 SE 500135C2 SE 9200534 A SE9200534 A SE 9200534A SE 9200534 A SE9200534 A SE 9200534A SE 500135 C2 SE500135 C2 SE 500135C2
Authority
SE
Sweden
Prior art keywords
tube
inner tube
explosive charges
charges
outer tube
Prior art date
Application number
SE9200534A
Other languages
Swedish (sv)
Other versions
SE9200534D0 (en
SE9200534L (en
Inventor
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 SE9200534A priority Critical patent/SE500135C2/en
Publication of SE9200534D0 publication Critical patent/SE9200534D0/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 US08/290,839 priority patent/US5470013A/en
Priority to DE69300588T priority patent/DE69300588T2/en
Publication of SE9200534L publication Critical patent/SE9200534L/en
Publication of SE500135C2 publication Critical patent/SE500135C2/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
    • 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
    • B21D26/06—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 by shock waves
    • B21D26/08—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 by shock waves generated by explosives, e.g. chemical explosives
    • 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
    • B21D39/06—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes in openings, e.g. rolling-in
    • B21D39/066—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes in openings, e.g. rolling-in using explosives
    • 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)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Shaping Metal By Deep-Drawing, 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 10 20 25 30 35 ßsf 2 metallurgisk fogbildrmjrxg vid spr-ängännesladtmmganxa, dels en expansion avdetimerörettillanliggrxirgmotdetyttreröret. 500 10 20 25 30 35 ßsf 2 metallurgical joint formation mrxg at spr-ängännesladtmmganxa, partly an expansion of the timer tube to the adjacent grxirg against the outer tube.

Nedan bækrives llçpfixmirxgen närmare, delvis i sannbarrl med ett på bifogade ritning visade av urpfirmirlgen, där -figmrlvisaretttvärszfittavettarrangernangerfligtuppfimfingen -figurzviearettinvänaigcrörfäetecvidetcycnreröritvärsnittem efter detcnation - figur 3 visar ett alternativ till det i figur 1 visade arrangemanget. - figur 4 visar ett andra alternativ till det i figur 1 visade .The following is described in more detail, partly in truth with one of the accompanying drawings, shown in the accompanying drawing, in which -figmrlvisarettttvärsz fi ttavettarrangernanger fl igtuppfim fi ngen -figurzviearettinvänaigcrörfäetör ett alternativncnitncnets. figure 4 shows a second alternative to that shown in figure 1.

Figur 1 visar ett arrangemang enligt en utförirxgsform av uppfinningen i ett vinkelrätt mot rörets lärlgdalltel. I figuren betedclar siffran lettyttrerör, siffranzettinrerörsanskall fästastilldetyttre rorets" irnsida, siffran 3 strangar" av " °' , siffran 4 en vätska och siffran 6 yttre mthåll av stål.Figure 1 shows an arrangement according to an embodiment of the invention in a position perpendicular to the lower part of the pipe. In the figure, the numeral means the outer tube, the numerical inner tube must be attached to the "inner side of the outer tube, the numeral 3 strands" of "°", the numeral 4 a liquid and the numeral 6 the outer surface of steel.

FOrel" iæalfie Ilgpflrlnlrq' ' avser ett förfaralfle att Inkl' äda ett yttre rör 1 nå ett Inre' rör 2, där det inre' röret" exenpelvis är av k0rr0si " material, medan det yttre röret kan vara ett vanligt Enligt uppfinningen placeras i det inre röret ett antal strängar 3 av spräng- ämnevidrörets2inneryta. Su-ärxgarna3placeraspåavståndfrånvarandra ochlöpazflefrånärudetilläradehosdetirnreröretm Föiredetorxationenav " " " 3 fylles det inre röret 2 ned en vätska 4, före- tredeevl" 'e vec-ten, vilken tjänar een rrycxeverf" ärende nedimn. nerefter" bringas samtliga sprängäxmesladzirairagar 3 att samtidigt detonera. bringas att detonera från rörets ena ände och debonatiorlen löper därefter till rörets andra Härvid en lokal metallurgisk fogbildning intill sprängämnes- laddrfinganxalællandetirmeodudetyttreröretæssafogarbetedmas med siffran 7 i figur 2. Vid detonationen uppstår chodcvågor san fortplantas idenuycköverförarfievätskanmmodwågonainterferemrmedvamrxha ochgeretthögttryàirmtidetinreröretzsandärvidexparnderarut netecntill errliwnxgmtdetyttre röret 1. faärvid bilaesecufnelmriekc förbarximotsvaranieettpræsförbandmellandetixmefidetyttreröret överdeunrådendärenmetallmgiskbirrixüiæginteslætt. 10 20 25 30 35 Pågnnxiavdenetallurgiskab lär1gssprär1gämxessträr1garrxa3 förhindzasixarmerröret2attihoptryckasvidmflertryckiröret. ïfigxlrlvisasfyrastyàensträragar3avsprärxgälnrme.For example, an Ilgpflrlnlrq '' refers to a procedure for including an outer tube 1 reaching an Inner 'tube 2, where the inner' tube 'is for example made of k0rr0si "material, while the outer tube may be a conventional one. The inner tube 2 is placed on a number of strands 3 of the inner surface of the explosive tube. The soles 3 are placed at a distance from each other and run from there to the inner tube. Before the detoxification of the "" 3, the inner tube 2 is filled with a liquid 4, which is preferably a liquid. down which "brought all sprängäxmesladzirairagar 3 simultaneously detonate. detonated from the tube one end and debonatiorlen then runs to the tube second Hereby a local metallurgical joint formation adjacent explosives laddr fi nganxalællandetirmeodudetyttreröretæssafogarbetedmas with numeral 7 in figure 2. When detonation occurs chodcvågor San propagated idenuycköverförar fi evätskanmmodwågonainterferemrmedvamrxha ochgeretthögttryàirmtidetinreröretzsandärvidexparnderarut netecntill errliwnxgmtdetyttre tube 1. faärvid bilaesecufnelmriekc förbarximotsvaranieettpræsförbandmellandetixme fi detyttreröret överdeunrådendärenmetallmgiskbirrixüiæginteslætt. 10 20 25 30 35 Pågnnxiavdenetallurgiskab lär1gssprär1gämxessträr1garrxa3 förhindzasixarmerröret2attihoptryckasvidm ertryckiröret al. ïfigxlrlvisasfyrastyàensträragar3avsprärxgälnrme.

Enligt en föredr-agen utförirlgsfozm av uppfinningen är strängarna 3 raka odl löper axiellt i det inre Givetvis kan antalet strängar varieras.According to a preferred embodiment of the invention, the strands 3 are straight and run axially in the interior. Of course, the number of strands can be varied.

Det är inte heller att anbringa strängarna rakt. Enligt en annan utförirgsfcrm anbringas strängarna så att dessa löper axiellt, men i enspixalformirurtidetinreröret2.It is also not to apply the strings straight. According to another embodiment, the strands are arranged so that they run axially, but in the one-pixel shape of the inner tube2.

Enligt en ytterligare utförizwgsform, illustrerad i figur 4, är 3ifozmavrixgar8,därettantalringarplaceraspåavstårflfrånvararfira ochparallelltmedvararadraidetinreröretubnedröretslängd. av bästa effekt, men strängar-na kan ha andra tvärsnittsforuner, exaxpelvis Detärsåledesuppenbartattstränganmakanplaceraspåenmängdolika sätt, därdetväserrtligaärattnnanåstadlficxnrxerenlolcal rnetalluxgisk konuaktpåtillräduigtnårgascällen för att förhindra attdetirmeröret deformeras inåtfördetfallettmfierlzydcllppstzåriröret.According to a further embodiment, illustrated in Figure 4, is 3ifozmavrixgar8, in which the number of rings is placed on abstaining fl absent och and in parallel with the radar inside the tube tube length. of the best effect, but the strings may have other cross-sectional shapes, for example, it is thus obvious that the strings can be placed in a variety of ways, where it is more likely to be close to the lattice that the lattice will not be deformed until it is deformed before it can be deformed.

Enligt en forednra" gen utförirzgsførm placeras ytterligare " " " sideniröreczbefirrciigavätslenzz, armingeniröæetscezmrmmellerpå amaat ställe skiljt från I figur 3 visas en centralt placerad ytterligare " " " . En eller flera ytterligare " " " Suedförattdentryckvågsanexparxierarixmerröretmotytteröretvid .. .. J”. i' tionf.. 'ni _ Detinreröret2harföredetonationenen smnmflerstiger det yttre rörets innerdianxeter så att en spalt 9 utbildas mellan Denna spalt 9 evakueras från luft, företrädesvis till ett tryck under- stigande onwkring 1 millibar, före detonationen av 10 20 25 30 35 4 Enligt ett föredraget utförande monteras samtliga inuti ett rör av plast, papp eller ett gunmimaterial passande inuti det inreröretförattåstadkamaengodplaoermgav .According to a preferred embodiment, an additional "" "silk tube is placed next to the water, but the ring is located in a separate location from Figure 3. A centrally located additional" "" is shown. One or more additional "" "sued for the pressure wave to be excreted. i 'tenf ..' ni _ Detinreröret2harföredetonationen smnm fl erstigen den utter tubes innderianxeter so that a gap 9 is formed between This gap 9 is evacuated from air, preferably to a pressure below about 1 millibar, before the detonation of 10 20 25 30 35 4 According to a In the preferred embodiment, all of them are mounted inside a tube of plastic, cardboard or a gunmini material fitting inside the inner tube to provide good fit.

Härvid kan exarpelvis " " " 3 limmas fast vid insidan av röret av plast, pag: eller guntni.In this case, for example, "" "3 can be glued to the inside of the pipe of plastic, pag: or guntni.

Erfligt en ytterligare föredragen utförirxgsform brirgas nämnda rör av plast, papp eller ett guxmnnna' terial även innehå' lla narmda" tryckoverf" orande" vätska 4. Härvid utföres detta rör med täta gavlar sarnt länpligen :ned en påfynnads- niæel för den ' örarfie kan beräknas på konventionellt känt Vidare är olika typer av Eftersom bnndnmg' ' en mellan rören sker vinke' 1ra"tt mt laddnmgarms' längd- nktrmg' ' pågrmñavdenvid detornationen alstradeclxodwågerascuxöverföres till vägg medelst vätskan kan med detonatiorws- hastigheter Överskridarfle ljudhastiglleten i användas. Sådana , exempelvis PEIN, BMX, RDX etc., har en pålitlig fxmktion även i laddningar med små dimensioner. lmligt uppfinningen åstadkommes således ett antal linjeformiga metallurgiska fogar. Dettamedför attenbetydligtmirdremängdsprärxgänuxeåtgår ned det fall där hela det inre röret Skall explosi till det ytmeröretsåattennetallxmgiskbhfizüxguppnåsöverhelakmrtæctytan rören emellan. Den san behövs enligt föreliggarrie förfarande är endast 1/1000 - del till 1/500 - del av den som skulle behövas vid explosi av hela förbandsytan.In a further preferred embodiment, said pipe of plastic, cardboard or a rubber material is also contained in the so-called "pressure-transmitting" liquid 4. In this case, this pipe is made with tight ends as long as it is possible to find an invention for the ears. calculated on conventionally known Furthermore, different types of Since the bonding between the tubes takes place angles '1ra "tt mt laddnmgarms' lenght- nktrmg '' pågrmñavdenvid detornationen alstradeclxodwågerascux Transferred to wall by means of the liquid can be used with detonation. Such, for example PEIN, BMX, RDX etc., have a reliable function even in charges with small dimensions. According to the invention, a number of linear metallurgical joints are thus provided. This means that the amount of the entire inner tube must explode significantly to the surface of the pipe, so that the entire inner pipe must explode so that the entire number of pipes can reach the entire surface between the pipes. The one needed according to the present procedure is only 1/1000 - part to 1/500 - part of what would be needed in the event of an explosion of the entire joint surface.

Ovan har yttre stod" 6 angivits. Oftast är det anellertid inte' nodvarñi" " 'gt att uppstödja I de fall där ytterröret har ringa godstjocklek är det tillfyllest med enkla stållinjaler.Above, the outer stand has been stated "6. Usually, however, it is not 'nodvarñi" "' gt to support. In cases where the outer tube has a small wall thickness, simple steel rulers are sufficient.

Förfarandet har ingen teoretisk vad avser Vanligast är dock om 6 till 12 meter. Dylika rörlargder" inga praktiska problem.The procedure has no theoretical in terms of Most common, however, is about 6 to 12 meters. Such pipe ladders "no practical problems.

Det är uppenbart att forel" iggande uppfinning' ' loser" de inledning' svis namnda" ~ ~ søo 135 5 olägenheterna med den kända telmiken.It is apparent that the present invention "solves" the above-mentioned disadvantages of the known telmike.

Det är vidare uppenbart att utförandet av tippfirmirmgen kan varieras och anpassas till aktuella rörmaterial och dimensioner.It is further obvious that the design of the tipping company can be varied and adapted to current pipe materials and dimensions.

Föreliggande uppfinning skall därför inte anses begränsad till de ovan aragiwma utföringsfonuenma, utan kan varieras inom dess av bifogade patenrtkrav angivna ram.The present invention is therefore not to be construed as limited to the above-mentioned embodiments, but may be varied within the scope of the appended claims.

Claims (8)

saa 155,* 10 15 20 25 30 35 Pata-rtkrav.saa 155, * 10 15 20 25 30 35 Pata-rtkrav. 1. Förfazarfieatt (1) (2), därdet inre röret exempelvis är av korrosiorrsbestälmdigt material, k ä n n e - tecknat av, attidetinreröret (2) plaoerasettantalsträrlgar (3) av vid rörets (2) inneryta, vilka strängar (3) placeras på avstånd frånvarandra och löpande frånändetill äindenös röret (2), av ett det inre röret (2) fylles ned en vätska (4), vatten, vilken tjänar som txycköverförarade medimn, samt av att samtliga sprängämnes- laddningar (3) hringas att samtidigt detonera, varvid det åstadkanmes dels en lokal lnetalluzgisk fogbildning vid (3) , dels en exparsion av det inre röret (2) till anliggrlirag mot det yttre röret (1).Procedure fi eatt (1) (2), the inner tube of which, for example, is made of corrosion-resistant material, characterized in that the inner tube (2) has a number of beams (3) at the inner surface of the tube (2), which strands (3) are spaced apart. from each other and running from end to end of the inner tube (2), a liquid (4) is filled by the inner tube (2), water, which serves as pressure-transferred medium, and by all explosive charges (3) being circulated to detonate simultaneously, whereby a local metallurgical joint formation is effected at (3) and an excretion of the inner tube (2) into abutment against the outer tube (1). 2. FörfararxieerlligtlcravLkännetecknat av, att (3) ärrakaodllöperaxielltidetinreröret (2).2. Procedure is characterized by the fact that (3) the coil runs axially in the inner tube (2). 3. FörfaranieernligtlcravLkännetecknat av, att (3) löper axielltmen ienspixalforminutidetinreröret (3).3. Procedure according to claim 1, characterized in that (3) runs axially but in the pixelforminutidetin inner tube (3). 4. FörfararxieenligtlcravLkännetecknat av, att (3) är i form av ringar (8), därett antal ringar (8) plaoeraspåavstårzd frånvarandraodlparallelltlrxedvararldra idet inre röret (2) utmedrörets längd.4. A method according to claim 1, characterized in that (3) is in the form of rings (8), the plurality of rings (8) being spaced apart from each other or parallel to each other with the inner tube (2) extending along the length of the tube. 5. Förfararxieenligtlcravl, 2, 3eller4, kännetecknat av, att en eller flera ytterligare (5) placeras i den i röret (2) befintliga vätskan (4), antingen i rörets (2) centrum eller på annat ställe skilt från rörväggen, vilken eller vilka ytterligare spräng- (5) bcringasatt förstärkadenfiyclorågsanexparflerarilirler- röret (2) mot ytteröret (1) vid sprangaimies" " laddningarnas' detönatinn.Process according to Claim 2, 3 or 4, characterized in that one or more further (5) are placed in the liquid (4) present in the tube (2), either in the center of the tube (2) or elsewhere separate from the tube wall, which or which further blast- (5) bgringat the reinforced fi yclorågsanexpar fl erarilirler- tube (2) against the outer tube (1) at the explosive "" of the charges "detönatinn. 6. Förfarandeerlligtkravl, 2, 3, 4eller5, kännetecknat a v, att det inre röret (2) före detonationen har en ytterdiameter som under- stiger det yttre rörets (1) innelrdialueter så att en spalt (9) utbildas mellan rören och av att spalten evakueras från luft, företrädesvis till ett tryck understigarde cmkring 1 millibar, före detonationen av sprängämnesladd- ningarna (3;5). §i5oo 135 7A method according to claim 2, 3, 4 or 5, characterized in that the inner tube (2) before the detonation has an outer diameter which is less than the inner diameters of the outer tube (1) so that a gap (9) is formed between the tubes and in that the gap evacuated from air, preferably to a pressure below about 1 millibar, before the detonation of the explosive charges (3; 5). §I5oo 135 7 7. Förfaxarfleerxligtlcravl, 2, 3, 4, 5eller6, kännetecknat a v, att samtliga (3;5) nxonteras inuti ett rör av plast, papp eller ett gununimateríal passande inuti det inre röret (2) för att åstadkomma en god placering av (3;5) .Prefaxes x eerxligtlcravl, 2, 3, 4, 5 or 6, characterized in that all (3; 5) are mounted inside a tube of plastic, cardboard or a gun material fitting inside the inner tube (2) to achieve a good placement of (3; 5). ; 5). 8. Förfarandeenligtkravfikännetecknat av, attrxälnrfiarör av plast, papp eller ett gummimaterial även bringas irmetzålla nämnda örandevätska(4).A method according to claim nat characterized in that plastic, cardboard or a rubber material is also made to contain said trout liquid (4).
SE9200534A 1992-02-21 1992-02-21 Corrosion-resistant lining clapping of tubes avoiding distort - utilising inner tube, explosively expanding and joined to outer tube, for high mechanical strength SE500135C2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE9200534A SE500135C2 (en) 1992-02-21 1992-02-21 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
US08/290,839 US5470013A (en) 1992-02-21 1993-02-19 Method of cladding tubes
DE69300588T DE69300588T2 (en) 1992-02-21 1993-02-19 METHOD FOR COVERING 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
SE9200534A SE500135C2 (en) 1992-02-21 1992-02-21 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
SE9200534D0 SE9200534D0 (en) 1992-02-21
SE9200534L SE9200534L (en) 1993-08-22
SE500135C2 true SE500135C2 (en) 1994-04-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SE9200534A SE500135C2 (en) 1992-02-21 1992-02-21 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) SE500135C2 (en)

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Publication number Publication date
SE9200534D0 (en) 1992-02-21
SE9200534L (en) 1993-08-22

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