SE460306B - MUFFLE CONNECTION FOR HEAT-INSULATED WIRING PIPES - Google Patents

MUFFLE CONNECTION FOR HEAT-INSULATED WIRING PIPES

Info

Publication number
SE460306B
SE460306B SE8300848A SE8300848A SE460306B SE 460306 B SE460306 B SE 460306B SE 8300848 A SE8300848 A SE 8300848A SE 8300848 A SE8300848 A SE 8300848A SE 460306 B SE460306 B SE 460306B
Authority
SE
Sweden
Prior art keywords
sleeve
plastic
connection according
sleeve connection
profile
Prior art date
Application number
SE8300848A
Other languages
Swedish (sv)
Other versions
SE8300848D0 (en
SE8300848L (en
Inventor
A Elbeshausen
W Artschwager
Original Assignee
Kabelmetal Electro Gmbh
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
Priority claimed from DE19828230424U external-priority patent/DE8230424U1/en
Application filed by Kabelmetal Electro Gmbh filed Critical Kabelmetal Electro Gmbh
Publication of SE8300848D0 publication Critical patent/SE8300848D0/en
Publication of SE8300848L publication Critical patent/SE8300848L/en
Publication of SE460306B publication Critical patent/SE460306B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • B29D23/003—Pipe joints, e.g. straight joints
    • B29D23/005—Pipe joints, e.g. straight joints provided with electrical wiring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/1295—Foaming around pipe joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • B29C65/3428—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding said at least a single wire having a waveform, e.g. a sinusoidal form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/49—Internally supporting the, e.g. tubular, article during joining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • B29C66/5326—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72321—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/727—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being porous, e.g. foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81471—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps being a wrap-around tape or band
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/841—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions
    • B29C66/8414—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions of different diameter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • F16L59/16—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like
    • F16L59/18—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like adapted for joints
    • F16L59/20—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like adapted for joints for non-disconnectable joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3472—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
    • B29C65/3476—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/733—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence
    • B29C66/7336—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence at least one of the parts to be joined being opaque, transparent or translucent to visible light
    • B29C66/73365—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence at least one of the parts to be joined being opaque, transparent or translucent to visible light at least one of the parts to be joined being transparent or translucent to visible light
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid
    • B29L2023/225—Insulated

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Thermal Insulation (AREA)

Description

460 306 2 4? mycket dyr att framställa och montera. Ändamålet med uppfinningen är att åstadkomma en mufförbindning, som är väsentligt billigare att fram- ställa och monterá och är tät under längre tid, sär- 5 skilt mot stigande grundvatten. 460 306 2 4? very expensive to manufacture and assemble. The object of the invention is to provide one socket connection, which is significantly cheaper to produce set and mounted and is tight for a long time, especially 5 separate from rising groundwater.

Detta ändamål uppnås enligt uppfinningen därigenom, att den egentliga muffkroppen består av ett med överlapp- ning över förbindningsstället format plastband, som såväl i området för överlappningsfogen som i området 10 för anliggningen mot ytterröret är svetsat medelst ett elektriskt uppvärmbart band. Utöver de av ändamålet direkt framgående fördelarna har mufförbindningen enligt uppfinningen också den fördelen, att ett relativt dyrt muffrör kan undvaras och att muffkroppen i stället kan 15 framställas av ett väsentligt billigare material. Vid val av plastmaterial bör man beakta, att materialet för muffkroppen ska ha samma beskaffenhet som materialet i de värmeisolerade ledningsrörens yttermantel. Före- trädesvis utnyttjar man ett polyetenband, som är genom- zo synligt, så att man vid den avslutande skumfyllningen kan övervaka skumningsförloppet och därmed kan undvika hàlrum.This object is achieved according to the invention thereby, that the actual sleeve body consists of one with overlapping plastic straps formed over the connection point, which both in the area of the overlap joint and in the area 10 for the abutment against the outer tube is welded by means of a electrically heatable band. In addition to those of the purpose directly emerging advantages have the sleeve connection according to The invention also has the advantage that a relatively expensive sleeve tubes can be dispensed with and that the sleeve body can instead Is made of a substantially cheaper material. At choice of plastic material should be taken into account, that the material for the sleeve body must have the same nature as the material in the outer jacket of the heat-insulated pipes. Before- For example, a polyethylene strip is used which is zo visible, so that at the final foam filling can monitor the foaming process and thus can avoid hall.

Företrädesvis är det elektriskt uppvärmbara bandet i meanderform insmält i plastbandets kantområde. Vid 25 anslutning av en strömkälla uppvärmes bandet genom motståndsuppvärmning och smälter därvid angränsande plastskikt, som hopsvetsas med varandra. Härvid är det väsentligt att ett lätt anpressningstryck föreligger såväl i området för anliggningsytan på ytterröret som 30 i området för överlappningsfogen.Preferably the band is electrically heatable in meander form fused into the edge area of the plastic strip. At Connection of a power source, the band is heated by resistance heating and thereby melts adjacent plastic layers, which are welded together. Here it is essential that there is a light pressing pressure both in the area of the contact surface on the outer tube and 30 in the area of the overlap joint.

Det har visat sig, att det vid ett stort avstånd mellan ytterrörändarna resp vid användning av mindre styvt material är svårt att åstadkomma en exakt svets- ning av längsfogen. 35 Detta problem löses därigenom, att en mot ytterrör- ändarna anliggande stödskena är anordnad under över- lappnignsfogen. Denna stödskena ger erforderligt mot- tryck under svetsningsförloppet. Stödskenan består före- lO 15 20 25 30 35 460 306 3 trädesvis av en T-profil, som lämpligen består av en _tunnväggig plåt. T-profilen är lätt men ändå tillräck- ligt styv för att motstå mottrycket. Såväl stödskenan som muffen anligger mot en i ytterrörens ändar utformad, ringformig urtagning. Därav erhålles den fördelen, att ingen diameterutvidgning i förhållande til yttermantelns ytterdiameter erhålles i mufförbindningsomràdet. Vid förskjutningar i jorden kan därmed inga skjuvkrafter uppträda. T-profilens fot är belägen i ett i området för urtagningen sig sträckande längsspár.It has been shown that at a great distance between the outer tube ends or when using smaller ones rigid material is difficult to achieve an accurate welding of the longitudinal joint. This problem is solved by the end support rail is arranged under the lappnignsfogen. This support rail provides the necessary pressure during the welding process. The support rail consists of lO 15 20 25 30 35 460 306 3 preferably of a T-profile, which suitably consists of a _thin-walled sheet metal. The T-profile is light but still sufficient rigid to withstand the back pressure. Both the support rail which the sleeve abuts against one formed at the ends of the outer tubes, annular recess. This gives the advantage that no diameter expansion relative to the outer shell outer diameter is obtained in the socket connection area. At displacements in the earth can thus no shear forces Act. The foot of the T-profile is located in one in the area for the recess extending longitudinal grooves.

I fig l-S visas uppfinningen schematiskt.Figures 1-S show the invention schematically.

I fig 1 visas ett plastband l, i vars kantomràde ett värmeband eller en värmetråd 3 är insmält. Plast- bandet består företrädesvis av polyeten och har exem- pelvis en tjocklek av ca 4 mm. För att värmetràden 2 ska uppvärmas anslutes ändarna 3 och 4 till en icke visad strömkälla. Genom motstándsuppvärmning av tråden 2 mjukgöres plastmaterialet i närheten av tråden och överföras därmed i svetsbart tillstànd.Fig. 1 shows a plastic strip 1, in the edge area of which a heating band or a heating wire 3 is fused. Plastic- the belt preferably consists of polyethylene and has pelvis a thickness of about 4 mm. To the heating wire 2 to be heated, connect the ends 3 and 4 to a non shown power source. By resistance heating of the wire 2, the plastic material in the vicinity of the wire is softened and thus transferred in a weldable state.

I fig 2 visas en sektion genom mufförbindningen.Fig. 2 shows a section through the socket connection.

Här betecknas med 5 det mediumförande innerröret, med 6 skumplastskiktet och med 7 plastyttermanteln. Plast- bandet 1 anligger mot plastyttermanteln med en över- lappning, såsom visas vid 8. Plastbandet l tryckes medelst en manschett 9 mot yttermanteln 7, varvid överlappnings- fogområdet 8 samtidigt sammantryckes. För spänning av manschetten 9 utnyttjas en skruvtving 10, vars backar ll och 12 ingriper bakom manschettens 9 bockningar 13 och 14. Spännbackarna ll och 12 föres efter manschettens anbringande medelst en skruvspindel 15 närmare varandra och pressar därvid manschetten 9 mot ytterröret 7. I förspänt tillstånd uppvärmes värmetràden 2, och efter svetsförloppet borttages manschetten 9 från muffstället.Here, the medium-carrying inner tube is denoted by 5, with 6 foam plastic layer and with 7 plastic outer jacket. Plastic- the band 1 abuts against the plastic outer jacket with a patching, as shown at 8. The plastic strip 1 is pressed by a cuff 9 against the outer jacket 7, the overlapping the joint area 8 is simultaneously compressed. For voltage of the sleeve 9 uses a screw clamp 10, the jaws of which ll and 12 engage behind the bends 9 of the cuff 13 and 14. The clamping jaws 11 and 12 are moved after the cuff application by means of a screw spindle 15 closer to each other and thereby pressing the cuff 9 against the outer tube 7. I pre-tensioned state, heating wire 2 is heated, and after the welding process, the cuff 9 is removed from the socket location.

Pig 3 visar den färdiga mufförbindningèn, vid vilken plastbandet l omger förbindningsstället under anliggning mot yttermantlarna 7 och i omrâdet för de streckade ytorna är sammansvetsat med yttermantlarna 7 resp samman- svetsat i området för överlappningsfogen 8. 460 306 10 15 20 25 30 35 4 En i plastbandet l eventuellt utformad öppning, som tjänar till skumplastfyllning av utrymmet mellan innerröret 5 och plastbandet 1, kan på motsvarande sätt ; tätas genom anbringande av en plastskiva, svetsas med plastbandet l såsom beskrivits ovan.Pig 3 shows the finished sleeve connection, at which the plastic band 1 surrounds the connection point during abutment towards the outer sheaths 7 and in the area of the dashed ones the surfaces are welded together with the outer sheaths 7 and welded in the area of the overlap joint 8. 460 306 10 15 20 25 30 35 4 An opening possibly formed in the plastic band, which serves to foam the space between the inner tube 5 and the plastic band 1, can in a corresponding manner; sealed by applying a plastic sheet, welded with the plastic strip 1 as described above.

Vid de i fig 4 och 5 visade utföringsexemplen är en T-profil 16 belägen under muffens l överlappningsfog 8. Hänvisningssiffrorna 19 och 20 visar omkretssvets- fogarna resp längssvetsfogen i området för överlappnings- fogen. Med 21 betecknas ledningsrörens värmeisolerings- skikt.In the embodiments shown in Figs. 4 and 5 are a T-profile 16 located below the overlap joint of the sleeve 1 8. Reference numerals 19 and 20 show circumferential welding the joints or the longitudinal weld joint in the area of the overlap the joint. 21 denotes the thermal insulation of the pipes layer.

Vid framställning av den i fig 4 och 5 visade muff- förbindningen går man tillväga på följande sätt: Först utformar man medelst ett lämpligt verktyg en i omkretsriktningen sig sträckande urtagning 17 i yttermantelns 7 ände. Därefter utformas, exempelvis ¿ medelst en friktionssåg, i området för urtagningen 17 ett i riktning mot innerröret 5 sig sträckande längsspàr T-profilens SOm Samman- l8, vars djup åtminstone motsvarar höjden av 16 fot.In making the sleeve shown in Figs. 4 and 5, the connection is proceeded as follows: First, you design by means of a suitable tool a circumferentially extending recess 17 in the end of the outer jacket 7. Then designed, for example ¿ by means of a friction saw, in the area of the recess 17 a longitudinal groove extending in the direction of the inner tube 5 The T-profile SOm Samman- l8, the depth of which is at least equal to the height of 16 feet.

Efter detta förberedande rörens 5 ändar med varandra (22) och införes T-profilen 16 i spåren 18. Där omkretssvetsfogarna l9 ska sträcka sig inlägges nu en icke särskilt betecknad, meanderfor- mig värmetràd. Nu rullas muffbandet l kring förbind- ningsstället, varvid överlappningsomràdet lägges över T-profilen lö. En meanderformig värmetràd inlägges också i området för längssvetsfogen 20. Efter montering av varvid arbete hopsvetsas inner- spännanordningen inkopplas uppvärmningsströmmen, plastmaterialet i området för svetsfogarna 19 och 20 blir flytande och sammansvetsas.After this preparation the ends of the tubes 5 with each other (22) and the T-profile is inserted 16 in the grooves 18. Where the circumferential welds 19 are to extend a not particularly designated, meanderfor- me heating wire. The sleeve band 1 is now rolled around the connecting where the overlap area is overlaid The T-profile sat. A meander-shaped heating wire is also inserted in the area of the longitudinal weld joint 20. After mounting of whereby work is welded together the clamping device is connected to the heating current, the plastic material in the area of the welds 19 and 20 becomes liquid and welded together.

Via öppningen 23 provas nu innerutrymmet mellan innerröret 5 och plastmuffbandet l vad avser täthet och eftersvetsas eventuellt. Via samma oppning 23, vil- ken eventuellt kan utvidgas, införes nu de flytande skumplastkomponenterna och åstadkommas skummet 6.Via the opening 23, the inner space between is now tested the inner tube 5 and the plastic sleeve band 1 in terms of tightness and possibly re-welded. Via the same opening 23, can possibly be expanded, the liquid ones are now introduced the foam plastic components and the foam 6 is produced.

MM

Claims (1)

lO 15 20 25 30 460 306 PATENTKRAV l. Mufförbindning för värmeisolerade ledningsrör, som består av ett mediumförande innerrör (5), företrä- desvis av stàl, ett innerröret omgivande värmeisole- ringsskikt (6) av skumplast, företrädesvis polyuretan, och ett ytterrör (7) av plast, vid vilken mufförbindning de från skumplast fria ändarna av innerrören hos tvà rörlängder som ska förbindas med varandra är hopsvetsade med varandra, förbindningsstället är täckt med en mot ytterrörändarna anliggande muff och det mellan inner- röret och muffen befintliga ringutrymmet är skumfyllt, k ä n n e t e c k n a d därav, att den egentliga muff- kroppen består av ett med överlappning (8) över förbind- ningsstället format plastband (l), som såväl i området för överlappningsfogen (8) som i området för anligg- ningen mot ytterröret (7) är svetsat medelst ett elektriskt uppvärmbart band (2).A socket connection for heat-insulated conduits, consisting of a medium-carrying inner tube (5), preferably of steel, an inner tube of thermal insulation layer (6) of foam plastic, preferably polyurethane, and an outer tube ( 7) of plastic, in which the sleeve connection the foam-free ends of the inner tubes of two pipe lengths to be connected to each other are welded together, the connection point is covered with a sleeve abutting against the outer tube ends and the annulus between the inner tube and the sleeve is foam-filled, characterized in that the actual sleeve body consists of a plastic strip (1) formed with an overlap (8) over the connection point, as well as in the area of the overlap joint (8) and in the area of the abutment against the outer pipe (7) is welded by means of an electrically heatable strip (2). 2. Mufförbindning enligt patentkravet l, k ä n n e - t e c k n a d därav, att det elektriskt uppvärmbara bandet (2) i meanderform är insmält i plastbandets (1) kantomràde.Sleeve connection according to Claim 1, characterized in that the electrically heatable strip (2) in meander form is fused in the edge region of the plastic strip (1). 3. Mufförbindning enligt patentkravet 1 eller 2, k ä n n e t e c k n a d därav, att en mot ytterrör- ändarna (7) anliggande stödskena (16) är anordnad under överlappningsfogen (8).Sleeve connection according to Claim 1 or 2, characterized in that a support rail (16) abutting the outer pipe ends (7) is arranged below the overlapping joint (8). 4. Mufförbindning enligt något av de föregående patentkraven, k ä n n e t e c k n a d därav, att stöd- skenan (16) består av en T-profil. S. Mufförbindning enligt patentkravet 4, k ä n n e t e c k n a d därav, att T-profilen (l6) består av tunnväggig plåt. s.'Mufförbinaning enligt något av de föregående patentkraven, k ä n n e t e c k n a d därav, att såväl stödskenan (16) som muffen (l) anligger mot en i ytter- rörens (7) ändar utformad, ringformig urtagning (17).Sleeve connection according to one of the preceding claims, characterized in that the support rail (16) consists of a T-profile. S. Sleeve connection according to claim 4, characterized in that the T-profile (16) consists of thin-walled sheet metal. Sleeve connection according to one of the preceding claims, characterized in that both the support rail (16) and the sleeve (1) abut against an annular recess (17) formed in the ends of the outer tubes (7). 7. Mufförbindning enligt något av de föregående 460 506 6 patentkraven, k ä n e n t e c k n a d därav, att T-pro- filens (16) fot är' belägen i ett i området för urtag- ningen (17) sig sträckande längsspàr (18). 9.7Sleeve connection according to one of the preceding 460 506 6 claims, characterized in that the foot of the T-profile (16) is located in a longitudinal groove (18) extending in the region of the recess (17). 9.7
SE8300848A 1982-02-17 1983-02-16 MUFFLE CONNECTION FOR HEAT-INSULATED WIRING PIPES SE460306B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8204372 1982-02-17
DE19828230424U DE8230424U1 (en) 1982-10-29 1982-10-29 SOCKET CONNECTION FOR HEAT-INSULATED PIPES

Publications (3)

Publication Number Publication Date
SE8300848D0 SE8300848D0 (en) 1983-02-16
SE8300848L SE8300848L (en) 1983-08-18
SE460306B true SE460306B (en) 1989-09-25

Family

ID=25949169

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8300848A SE460306B (en) 1982-02-17 1983-02-16 MUFFLE CONNECTION FOR HEAT-INSULATED WIRING PIPES

Country Status (2)

Country Link
NL (1) NL191954C (en)
SE (1) SE460306B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997037167A1 (en) * 1996-04-03 1997-10-09 Appelblad, Karl, Gunnar Method and tool for joining, repairs and maintenance of insulating line pipes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0286718A3 (en) * 1987-04-11 1989-05-10 kabelmetal electro GmbH Thermoplastic band for covering a welding zone and method for its fabrication

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997037167A1 (en) * 1996-04-03 1997-10-09 Appelblad, Karl, Gunnar Method and tool for joining, repairs and maintenance of insulating line pipes

Also Published As

Publication number Publication date
NL191954C (en) 1996-11-04
SE8300848D0 (en) 1983-02-16
NL8300580A (en) 1983-09-16
SE8300848L (en) 1983-08-18
NL191954B (en) 1996-07-01

Similar Documents

Publication Publication Date Title
US4436987A (en) Weld connection for plastic pipe
JP3833715B2 (en) Fittings and methods
FI65729B (en) SAFETY RING FOR SUSPENSION AV PLASTROER GENOM VAERMEFOGNING
US3801140A (en) Pre-insulated pipe conduit with test passage
GB2198806A (en) Connecting or repair device
WO1995003162A1 (en) A method of joining reinforced thermoplastic pipes
EP0164323B1 (en) A method for joining insulated conduits
WO2001036173A8 (en) Injection molding device for extrusion coating circular weld seams of a pipeline
EP1717505A2 (en) Sleeve for protection and strengthening of head-to-head welds of plastic pipes
KR101635426B1 (en) Casing for connecting double insulation pipe, method for manufacturing the casing, and method for connecting double insulation pipe using the casing
WO2002070236A3 (en) Method and apparatus for end-to-end welding of lined pipe
EP0888513B1 (en) Method and tool for joining, repairs and maintenance of insulating line pipes
SE460306B (en) MUFFLE CONNECTION FOR HEAT-INSULATED WIRING PIPES
KR101655315B1 (en) Polyurethane forming Cap of heat shrinkable casing for double insulation pipe
JPS58219018A (en) Jointing method of synthetic resin tube
WO2009148318A1 (en) Coupling piece with flange, conduit system with at least one such coupling piece, method for connecting a conduit and a coupling piece, and connecting device
WO1994012295A1 (en) A method and a pipe element for providing a radially outwards directed bead at the end rim of a pipe
US3558391A (en) High temperature duct insulator and method of making same
WO1994013457A3 (en) Joint, method of forming a joint and method of forming joint components
JPH0629591Y2 (en) Branch of resin pipe
US20030214131A1 (en) Coupling-equipped pipe and apparatus for manufacturing the same
RU2157941C2 (en) Weld-in coupling
GB2184804A (en) A plastic shrink socket for joining two tube ends
KR100309088B1 (en) A method of taping the joint of tube liner used for hardening and its device
JP3187655B2 (en) Branch structure of rehabilitation pipe

Legal Events

Date Code Title Description
NAL Patent in force

Ref document number: 8300848-2

Format of ref document f/p: F

NUG Patent has lapsed