SE446311B - towing equipment - Google Patents
towing equipmentInfo
- Publication number
- SE446311B SE446311B SE8100755A SE8100755A SE446311B SE 446311 B SE446311 B SE 446311B SE 8100755 A SE8100755 A SE 8100755A SE 8100755 A SE8100755 A SE 8100755A SE 446311 B SE446311 B SE 446311B
- Authority
- SE
- Sweden
- Prior art keywords
- deformation section
- diameter
- mandrel
- pipe
- inner diameter
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
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
- B21C37/16—Making tubes with varying diameter in longitudinal direction
-
- 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
- B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Extraction Processes (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Description
8100755-1 med den till diametern mindre av dessa, och fig. 10 visar dornen enligt fig. 9 med sektionen med större diameter i ingrepp. 8100755-1 with the smaller diameter of these, and Fig. 10 shows the mandrel according to Fig. 9 with the larger diameter section engaged.
Tillverkningen av det i fig. 1 visade röret 5 med för- stärkningarna sker såsom framgår av fig. 2 och 3 genom för- skjutning av dragstången 7 med dornhuvudet 2.Dornhuvudets 2 ytterdiameter motsvarar därvid rörets 5 innerdiameter.The manufacture of the tube 5 with the reinforcements shown in Fig. 1 takes place as shown in Figs. 2 and 3 by displacing the drawbar 7 with the mandrel head 2. The outer diameter of the mandrel head 2 then corresponds to the inner diameter of the tube 5.
Såsom framgår av fig. 2 åstadkommas rörets 5 normal- tjocklek vid dragringens sektion 3 och åstadkommas förstärk- ningen 6 genom förskjutning av dornhuvudet 2 i dragriktningen och fram till ingrepp i sektionen 4.As can be seen from Fig. 2, the normal thickness of the tube 5 is achieved at the section 3 of the pull ring and the reinforcement 6 is provided by displacing the mandrel head 2 in the pulling direction and up to engagement in the section 4.
Förskjutningsanordningen för dornen 2 visas inte i figurerna. ' Den stegformiga förlängningen 8 av pluggen 2 tjänar som styrning för det material som skall deformeras.The displacement device for the mandrel 2 is not shown in the figures. The step-shaped extension 8 of the plug 2 serves as a guide for the material to be deformed.
Såsom utgângsmaterial kan rörkopplingar finna använd- ning vilka antingen är sömlösa eller svetsade.Pipe couplings can be used as starting materials which are either seamless or welded.
Den i fig. 4-8 visade utföringsformen av uppfinningen används för tillverkning av rör med längsprofiler, exempelvis värmeväxlarrör.The embodiment of the invention shown in Figs. 4-8 is used for the manufacture of pipes with longitudinal profiles, for example heat exchanger pipes.
Bildandet av räfflor på värmeväxlarrör tjänar på känt sätt till en förstoring av värmeväxlarytan och därmed till en förbättring av värmeöverföringen. Många gånger räcker det att endast anordna räfflor på rörens innersidor eller på rörens yttersidor för att man skall uppnå den eftersträvade förbätt- ringen av värmeöverföringen. I andra fall krävs det att såväl inre som även yttre räfflor anordnas. Vid vidarebearbetningen av värmeväxlarrör med längsgående räfflor består svårigheten i att absolut tätt förbinda dessa med rörplattor eller liknan- de. Antingen måste de längsgående räfflorna på rörens yttersida bortbearbetas i förbindningsområdena eller också måste svets- nings- eller lödningsmetoder användas. De senare ger ofta inte någon tät förbindning eftersom fördjupningen mellan räff- lorna inte.säkert utfylls med svets- eller lödmaterial.The formation of grooves on heat exchanger tubes serves in a known manner to enlarge the heat exchanger surface and thus to improve the heat transfer. Many times it is sufficient to only arrange grooves on the inside of the pipes or on the outside of the pipes in order to achieve the desired improvement of the heat transfer. In other cases, it is required that both internal and external grooves are provided. When further processing heat exchanger pipes with longitudinal grooves, the difficulty consists in connecting these absolutely tightly with pipe plates or the like. Either the longitudinal grooves on the outside of the pipes must be worked away in the connection areas or welding or soldering methods must be used. The latter often do not provide a tight connection because the recess between the grooves is not securely filled with welding or soldering material.
Med draganordningen enligt uppfinningen kan denna till- verkning väsentligt förenklas.With the towing device according to the invention, this production can be substantially simplified.
Såsom visas i fig. 3-7 är den aktuella inställningen 8100755-1 av anordningen bestämmande för tillverkningen av röret.As shown in Figs. 3-7, the current setting 8100755-1 of the device determines the manufacture of the pipe.
Såsom visas i fig. 4 är dragringen 1 på ungefär en tredjedel av sin draglängd försedd med en slät inloppsdel 9 och i anslutning härtill försedd med en profilerad del 10 och i den sista tredjedelen försedd med en slät oprofilerad del 11.As shown in Fig. 4, the draw ring 1 is provided with a smooth inlet part 9 of approximately one third of its draw length and in connection with this is provided with a profiled part 10 and in the last third with a smooth unprofiled part 11.
In- och utloppen 12 hos stegdragringen är koniskt utvidgade.The inlets and outlets 12 of the step pull ring are conically widened.
I fig. 5 visas hur den släta pluggen 2 inställs så att röret trycks med sin vägg in i den profilerade delen av drag- ringen 1. Fig. 6 visar att pluggen 2 skjutits så långt att röret kommer till anliggning mot dragringens icke profilerade del 3.Fig. 5 shows how the smooth plug 2 is adjusted so that the pipe is pressed with its wall into the profiled part of the pull ring 1. Fig. 6 shows that the plug 2 has been pushed so far that the pipe comes into contact with the non-profiled part 3 of the pull ring. .
Fig. 7 visar insättningen av en med längsgående räfflor försedd plugg 2' i ett läge sådant att en inner- och ytterprofil uppstår, dvs. att röret med sin ytteryta står i ingrepp med den profilerade delen 10 av dragríngen.Fig. 7 shows the insertion of a plug 2 'provided with longitudinal grooves in a position such that an inner and outer profile arises, i.e. that the tube with its outer surface engages with the profiled part 10 of the pull ring.
I fig. 8 är den med profil försedda pluggen förskjuten så långt att rörets ytteryta kommer i kontakt med resp. i in- grepp med dragringens icke profilerade del 11.In Fig. 8, the plug provided with a profile is displaced so far that the outer surface of the pipe comes into contact with resp. in engagement with the non-profiled part 11 of the tow ring.
I fig. 9 och 10 visas slutligen en alternativ lösning.Finally, Figures 9 and 10 show an alternative solution.
Här har dragringen endast en deformeringssektion medan dornen är tvåstegigt utformad.Here the pull ring has only one deformation section while the mandrel is two-stage designed.
Genom motsvarande förskjutning av dornen kan inner- diametern och väggtjockleken för det rör som skall tillverkas påverkas i beroende av om den till diametern mindre eller större dornsektionen ligger i dragringens deformeringsområde. Pâ detta sätt kan i ett speciellt syfte inre utsprång utformas.By corresponding displacement of the mandrel, the inner diameter and wall thickness of the pipe to be manufactured can be affected depending on whether the mandrel section smaller or larger in diameter is in the deformation area of the draw ring. In this way, internal projections can be designed for a special purpose.
POORPOOR
Claims (4)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3016135A DE3016135C2 (en) | 1980-04-24 | 1980-04-24 | Pulling device |
Publications (2)
Publication Number | Publication Date |
---|---|
SE8100755L SE8100755L (en) | 1981-10-25 |
SE446311B true SE446311B (en) | 1986-09-01 |
Family
ID=6101018
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8100755A SE446311B (en) | 1980-04-24 | 1981-01-30 | towing equipment |
Country Status (7)
Country | Link |
---|---|
BE (1) | BE888549A (en) |
DE (1) | DE3016135C2 (en) |
ES (1) | ES498697A0 (en) |
FR (1) | FR2481153A1 (en) |
IT (1) | IT1169232B (en) |
NL (1) | NL8100302A (en) |
SE (1) | SE446311B (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4726211A (en) * | 1984-04-16 | 1988-02-23 | Sanwa Kokan Kabushiki Kaishas | Method of cold drawing seamless metal tubes each having an upset portion on each end |
US5119662A (en) * | 1984-04-16 | 1992-06-09 | Sanwa Kokan Co., Ltd. | Methods for cold drawing seamless metal tubes each having an upset portion on each end |
GB8411289D0 (en) * | 1984-05-02 | 1984-06-06 | Sansome D H | Plug drawing |
US4854148A (en) * | 1987-06-19 | 1989-08-08 | The Babcock & Wilcox Company | Cold drawing technique and apparatus for forming internally grooved tubes |
DE19750720A1 (en) * | 1997-11-15 | 1999-05-20 | Volkswagen Ag | Tubular or rod-shaped workpiece and method for its production |
DE102004039967B4 (en) | 2004-08-18 | 2006-10-12 | Gkn Driveline International Gmbh | Method for the reverse extrusion of internal profiles |
DE102004056147B3 (en) | 2004-11-20 | 2006-08-03 | Gkn Driveline International Gmbh | Reduction of tubes over a stepped mandrel for producing hollow shafts with undercut in one operation |
DE102019103926A1 (en) * | 2019-02-15 | 2020-08-20 | Walter Henrich GmbH | Method and device for the axial forming of a pipe |
EP4155001B1 (en) * | 2021-09-24 | 2023-09-06 | FELSS Systems GmbH | Method and devices for reforming a tubular hollow body |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US946631A (en) * | 1910-01-18 | Charles H Ballou | Die for helically fluting wire-stock. | |
US2228301A (en) * | 1939-08-22 | 1941-01-14 | Phelps Dodge Copper Prod | Tube drawing method and apparatus |
DE1078975B (en) * | 1957-06-29 | 1960-04-07 | Georg Preis | Pulling and cross-rolling device for pipes |
US3513682A (en) * | 1967-07-13 | 1970-05-26 | Anaconda American Brass Co | Method for processing welded tube |
DE2134076A1 (en) * | 1971-07-08 | 1973-01-18 | Battelle Development Corp | Long-tapered tubes prodn using short mandrel |
DE2232692A1 (en) * | 1972-07-04 | 1974-01-24 | Kabel Metallwerke Ghh | Polygon aluminium tube drawing die - comprises several steps |
FR2326993A1 (en) * | 1975-10-10 | 1977-05-06 | Degond Sa Ets J | Drawing of metal tube of tapering wall thickness - uses conical drawing plate insert which is advanced as tube is drawn to produce tennis racket shaft |
US4148207A (en) * | 1978-02-21 | 1979-04-10 | The Babcock & Wilcox Company | Drawing technique |
-
1980
- 1980-04-24 DE DE3016135A patent/DE3016135C2/en not_active Expired
-
1981
- 1981-01-21 ES ES498697A patent/ES498697A0/en active Granted
- 1981-01-22 NL NL8100302A patent/NL8100302A/en not_active Application Discontinuation
- 1981-01-30 SE SE8100755A patent/SE446311B/en not_active IP Right Cessation
- 1981-03-06 IT IT8120182A patent/IT1169232B/en active
- 1981-04-21 FR FR8107927A patent/FR2481153A1/en active Granted
- 1981-04-24 BE BE0/204595A patent/BE888549A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE3016135A1 (en) | 1981-10-29 |
DE3016135C2 (en) | 1983-04-14 |
FR2481153B1 (en) | 1984-11-16 |
FR2481153A1 (en) | 1981-10-30 |
SE8100755L (en) | 1981-10-25 |
IT1169232B (en) | 1987-05-27 |
ES8200576A1 (en) | 1981-11-01 |
IT8120182A0 (en) | 1981-03-06 |
ES498697A0 (en) | 1981-11-01 |
NL8100302A (en) | 1981-11-16 |
BE888549A (en) | 1981-08-17 |
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