CH632078A5 - Collar for connecting line elements - Google Patents
Collar for connecting line elements Download PDFInfo
- Publication number
- CH632078A5 CH632078A5 CH950878A CH950878A CH632078A5 CH 632078 A5 CH632078 A5 CH 632078A5 CH 950878 A CH950878 A CH 950878A CH 950878 A CH950878 A CH 950878A CH 632078 A5 CH632078 A5 CH 632078A5
- Authority
- CH
- Switzerland
- Prior art keywords
- sleeve
- recess
- line elements
- heating conductor
- welding
- Prior art date
Links
Classifications
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- 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
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
-
- 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
- B29C65/66—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined
- B29C65/68—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined using auxiliary shrinkable elements
-
- 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
- B29C66/50—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
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5229—Joining tubular articles involving the use of a socket
-
- 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
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
- B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
- B29C66/91211—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods
- B29C66/91218—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods using colour change, e.g. using separate colour indicators
-
- 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
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
- B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
- B29C66/91221—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature of the parts to be joined
-
- 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
- B29C66/90—Measuring or controlling the joining process
- B29C66/97—Checking completion of joining or correct joining by using indications on at least one of the joined parts
- B29C66/976—Checking completion of joining or correct joining by using indications on at least one of the joined parts by the use of an indicator pin, e.g. being integral with one of the parts to be joined
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- 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
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/02—Welded joints; Adhesive joints
- F16L47/03—Welded joints with an electrical resistance incorporated in the joint
-
- 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"
- B29C65/3468—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 means for supplying heat to said heated elements which remain in the join, e.g. special electrical connectors of windings
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Description
Die Erfindung betrifft eine Muffe mit einer Muffenhülse aus thermoplastischem Material zum Verbinden von Leitungselementen aus thermoplastischem Material, wobei in der Muffenhülse ein elektrischer Heizleiter, in welchem Wärme zum teilweisen Schmelzen der Muffenhülse und der mit ihr zu verbindenden Leitungselemente erzeugt wird, eingebettet und eine Anzeigevorrichtung zur Überwachung der Schweissung angeordnet ist. The invention relates to a sleeve with a sleeve sleeve made of thermoplastic material for connecting line elements made of thermoplastic material, an electrical heating conductor, in which heat is generated for the partial melting of the sleeve sleeve and the line elements to be connected to it, embedded in the sleeve sleeve and a display device for Monitoring of the weld is arranged.
Zum Verbinden von Leitungselementen aus Kunststoff ist es bekannt, sogenannte Elektro-Schweissmuffen zu verwenden. Unter Leitungselementen werden Rohrstücke, Formstücke und Armaturen, z.B. Ventile und Schieber, verstanden. Die Elektro-Schweissmuffe besteht im wesentlichen aus einer Muffenhülse aus demselben oder einem ähnlichen Kunststoff wie die Leitungselemente. In der Muffenhülse ist ein Heizleiter, z.B. eine Wicklung aus einem elektrischen Widerstandsheizdraht, in der Nähe der Innenwandung eingebettet. Zum Verbinden der Leitungselemente werden die Stutzen derselben in die Muffe gesteckt, worauf im Heizleiter Wärme erzeugt wird, wodurch ein teilweises Schmelzen sowohl des Muffenmaterials als auch des Materials der Enden der Rohrleitungselemente eintritt. Bei richtiger Dosierung der Schweissenergie findet eine Schweissung, d.h. eine molekulare Verbindung, der Teile statt, wodurch die Leitungselemente tropfdicht miteinander verbunden sind. To connect plastic line elements, it is known to use so-called electric welding sleeves. Pipe pieces, fittings and fittings, e.g. Valves and sliders, understood. The electric welding socket essentially consists of a socket sleeve made of the same or a similar plastic as the line elements. There is a heating conductor in the sleeve, e.g. a winding of an electrical resistance heating wire, embedded near the inner wall. To connect the line elements, the sockets of the same are inserted into the socket, whereupon heat is generated in the heating conductor, as a result of which a partial melting of both the socket material and the material of the ends of the pipe elements occurs. With the correct dosing of the welding energy, a welding takes place, i.e. a molecular connection, the parts instead, whereby the line elements are connected to each other in a drip-tight manner.
Trotz des verhältnismässig einfachen Aufbaus einer solchen Elektro-Schweissmuffe sind die mittels dieser herzustellenden Verbindungen an Leitungselementen verhältnismässig komplex. Da die zu verbindenden Teile ineinandergesteckt werden müssen, ist es nicht zu vermeiden, dass zwischen der Muffe und den Enden der Rohrleitungselemente ein Spalt vorhanden ist, der zur Erreichung einer tropf dichten Verbindung beim Sehweissvorgang geschlossen werden muss. Hierzu ist es bekannt, der Elektro-Schweissmuffe eine Schrumpfreserve, z.B. durch Aufweiten, zu erteilen, die beim Sehweissvorgang gelöst wird und eine Durchmesserverringerung der Muffenhülse zur Folge hat. Wenn auch damit der Spalt eliminiert werden kann, bedeutet dies noch keineswegs, dass die Verbindung tropfdicht ist. Dazu ist es erforderlich, die dem Heizleiter zugeführte Schweissenergie zu dosieren, damit einerseits eine genügende Menge an thermoplastischem Material, um eine einwandfreie Schweissung zu erreichen, aber andererseits nur soviel Material geschmolzen wird, um eine Verformung der zu verbindenden Teile zu vermeiden. Wenn auch die zuzuführende Schweissenergie eingehalten wird, können trotzdem fehlerhafte Verbindungen entstehen, vor allem durch unterschiedliche äussere Bedingungen, Despite the relatively simple construction of such an electric welding socket, the connections to line elements to be made by means of these are relatively complex. Since the parts to be connected have to be plugged into one another, it is unavoidable that there is a gap between the sleeve and the ends of the pipe elements, which must be closed in order to achieve a drip-tight connection during the visual whitening process. For this purpose, it is known to have a shrink reserve, e.g. by widening, which is released during the visual whitening process and results in a reduction in the diameter of the sleeve sleeve. If this also eliminates the gap, it does not mean that the connection is drip-proof. For this purpose, it is necessary to meter the welding energy supplied to the heating conductor, so that on the one hand a sufficient amount of thermoplastic material to achieve a perfect weld, but on the other hand only so much material is melted to avoid deformation of the parts to be connected. If the welding energy to be supplied is also observed, faulty connections can still occur, especially due to different external conditions,
z.B. tiefe Aussentemperatur. Es ist zwar möglich, solche zusätzlichen Einflüsse durch Änderung der zugeführten Schweissenergie zu kompensieren, jedoch ist der dadurch erforderliche Aufwand entsprechend grösser. e.g. low outside temperature. Although it is possible to compensate for such additional influences by changing the welding energy supplied, the effort required is correspondingly greater.
5 Es ist auch bekannt, eine mittels einer Elektro-Schweissmuffe hergestellte Verbindung durch eine besondere Anzeigevorrichtung direkt zu kontrollieren. Hierzu kann beispielsweise ein Temperaturfühler an der Elektro-Schweissmuffe angeordnet werden, durch welchen das Erreichen der für eine einwand-ic freie Verschweissung erforderlichen Temperatur angezeigt wird, z.B. durch einen Farbumschlag. Bekannt ist auch die Verwendung eines Fühlers, der in der Wandung der Elektro-Schweissmuffe angeordnet ist. Wird die für das Schweissen erforderliche Temperatur erreicht, wird der Fühler über die Aus-îssenseite der Muffenhülse angehoben und zeigt dadurch die einwandfreie Verschweissung der zu verbindenden Teile an. 5 It is also known to directly control a connection made by means of an electric welding sleeve using a special display device. For this purpose, for example, a temperature sensor can be arranged on the electric welding sleeve, by means of which the temperature that is required for a perfect welding is indicated, e.g. through a color change. It is also known to use a sensor which is arranged in the wall of the electric welding sleeve. When the temperature required for welding is reached, the sensor is raised above the outside of the sleeve sleeve, indicating that the parts to be connected are welded properly.
Der Erfindung liegt die Aufgabe zugrunde, eine Muffe der eingangs beschriebenen Art so auszugestalten, dass die verwendete Anzeigevorrichtung gegenüber den bekannten Lösungen 20wesentlich vereinfacht werden kann. The invention is based on the object of designing a sleeve of the type described at the outset in such a way that the display device used can be substantially simplified compared to the known solutions 20.
Diese Aufgabe wird gemäss der Erfindung dadurch gelöst, dass die Anzeigevorrichtung eine in der Muffenhülse liegende Ausnehmung ist, deren Grund in der Nähe des Heizleiters liegt. Die Erfindung ist in der Zeichnung in zwei Ausführungsbei-25 spielen dargestellt und nachfolgend beschrieben. Es zeigt: This object is achieved according to the invention in that the display device is a recess in the sleeve sleeve, the bottom of which is in the vicinity of the heating conductor. The invention is shown in the drawing in two Ausführungsbei-25 play and described below. It shows:
Fig. 1 eine schematische Darstellung eines Vertikalschnitts durch eine mit einer Elektro-Schweissmuffe vorzunehmende Verbindung von zwei Rohrenden, 1 is a schematic representation of a vertical section through a connection of two pipe ends to be made with an electric welding sleeve,
Fig. 2 einen Ausschnitt aus Fig. 1 mit einer ersten Ausfüh-30 rungsform einer Anzeigevorrichtung und Fig. 2 shows a detail of Fig. 1 with a first embodiment of a display device and
Fig. 3 einen Ausschnitt aus Fig. 1 mit einer zweiten Ausführungsform einer Anzeigevorrichtung. 3 shows a detail from FIG. 1 with a second embodiment of a display device.
In Fig. 1 weist eine Elektro-Schweissmuffe 1 eine Muffenhülse 2 auf, in welcher ein Heizleiter 3 eingebettet ist. Die Muf-35 fe 1 inngibt die Enden 8,9 von zwei Leitungselementen, z.B. Rohrenden. In der Elektro-Schweissmuffe 1 ist der Heizleiter 3 vorzugsweise in der Nähe der Innenwandung 30 angeordnet, damit die im Heizleiter 3 erzeugte Wärme auch einen Teil der Enden 8,9 schmelzen kann. In Fig. 1 ist der Heizleiter 3 eine 40 aus einem elektrischen Widerstandsheizdraht geformte Wicklung, deren Enden in einen Kontaktstift 4 geführt sind, der in einer an der Aussenseite 6 der Muffenhülse 2 angeordneten Vertiefung 5 liegt. Der Kontaktstift 4 dient der Verbindung der Schweissmuffe 1 mit einem Speisegerät zur Dosierung der 45 Schweissenergie. Die Kontaktstifte 4 sind, siehe Fig. 1, in der Nähe der Aussenseite 7 der Muffenhülse 2 angeordnet. In Fig. 1 ist keine Anzeigevorrichtung dargestellt, sondern in vergrössert dargestellten Ausschnitten nach Fig. 2 und 3. In Fig. 1, an electric welding sleeve 1 has a sleeve sleeve 2, in which a heating conductor 3 is embedded. The Muf-35 fe 1 inserts the ends 8,9 of two pipe elements, e.g. Pipe ends. In the electric welding sleeve 1, the heating conductor 3 is preferably arranged in the vicinity of the inner wall 30, so that the heat generated in the heating conductor 3 can also melt part of the ends 8, 9. In Fig. 1, the heating conductor 3 is a 40 formed from an electrical resistance heating wire, the ends of which are guided in a contact pin 4 which lies in a recess 5 arranged on the outside 6 of the sleeve sleeve 2. The contact pin 4 serves to connect the welding sleeve 1 to a feed device for metering the 45 welding energy. The contact pins 4, see FIG. 1, are arranged in the vicinity of the outside 7 of the sleeve sleeve 2. 1 does not show a display device, but rather in enlarged sections according to FIGS. 2 and 3.
In Fig. 2 ist ein Teil der Muffenhülse 2 und des Endes 8 5c dargestellt. Zwischen der Vertiefung 5 zur Aufnahme des Kontaktstiftes 4 und der Aussenseite 7 ist eine in achsialer Richtung verlaufende Ausnehmung 10 angeordnet. Die Ausnehmung 10 liegt unmittelbar in der Nähe der Innenwandung 30 der Muffenhülse 2. Wesentlich ist hierbei, dass der Grund 11 der Ausneh-mung 10 in der Nähe des Heizleiters 3 liegt. Es wäre auch möglich, die Ausnehmung 10 etwas von der Innenwandung 30 entfernt anzuordnen. Auch könnte die Ausnehmung 10 beginnend an der Aussenseite 7 schräg gegen den Heizleiter 3 verlaufen. Die einwandfrei durchgeführte Schweissung wird durch das 6C Austreten eines gestrichelt dargestellten Materialzapfens 12 angezeigt. Dieser Materialaustritt entsteht überraschenderweise dadurch, dass der Spalt 31 beim Sehweissvorgang sich schliesst und ein Druck im Innern der Verbindung entsteht. In Fig. 2, a part of the sleeve sleeve 2 and the end 8 5c is shown. A recess 10 extending in the axial direction is arranged between the recess 5 for receiving the contact pin 4 and the outside 7. The recess 10 is located in the immediate vicinity of the inner wall 30 of the sleeve sleeve 2. It is important here that the base 11 of the recess 10 is in the vicinity of the heating conductor 3. It would also be possible to arrange the recess 10 somewhat away from the inner wall 30. The recess 10 could also begin to run obliquely against the heating conductor 3 on the outside 7. The properly performed welding is indicated by the 6C emergence of a material pin 12 shown in dashed lines. This material leakage surprisingly arises from the fact that the gap 31 closes during the visual whitening process and a pressure arises in the interior of the connection.
In Fig. 3 ist eine Ausnehmung 20 dargestellt, die sich etwa 65 radial von der Aussenseite 6 der Muffenhülse 2 bis in die Nähe des Heizleiters 3 erstreckt. Beim Schweissen wird ein gestrichelt dargestellter Materialzapfen über die Aussenseite 6 gedrückt. Der Vorgang ist hierbei derselbe wie bei der Ausnehmung nach 3 shows a recess 20 which extends approximately 65 radially from the outside 6 of the sleeve sleeve 2 to the vicinity of the heating conductor 3. When welding, a material pin shown in dashed lines is pressed over the outside 6. The process here is the same as for the recess
3 632 078 3,632,078
Fig. 2, da der im Innern der Verbindung entstehende Schweiss- stellt ist. Ist jedoch die Anordnung einer Anzeigevorrichtung druck etwas Material in die Ausnehmung 20 drückt. Die Aus- vorgesehen, so ist es zweckmässig, diese direkt bei der Herstel-nehmung 20 kann hierbei auch schräg von der Aussenseite ge- jUng der Muffe 1 mitanzuformen. Wesentlich ist, wie bei der gen den Heizleiter 3 verlaufen. Es ist auch möglich, die Ausneh- Ausführungsform nach Fig. 2, dass der Grund 21 der Ausnehmung 20 bis zur Innenwandung 30 zu führen, damit das den 5 mung 20 im Bereich des Heizleiters 3 liegt, d.h. im Bereich Spalt 31 ausfüllende Material direkt in die Ausnehmung 20 ge- derjenigen Partie der Muffenhülse 2, die durch die zugeführte langen kann. Heizenergie geschmolzen wird. Der aus der Ausnehmung 10 Der Vorteil der in Fig. 2 und 3 dargestellten Auszeigevor- bzw. 20 herausgedrückte Materialzapfen 12 bzw. 22 ist volu-richtungen liegt in deren Einfachheit ; es sind keine zusätzlichen menmässig gegenüber der gesamten geschmolzenen Material-Mittel hierzu erforderlich. Auch kann die Anzeigevorrichtung 10 menge gering und beeinflusst somit den Sehweissvorgang prak-erst dann angebracht werden, wenn die Muffe 1 bereits herge- tisch nicht. Fig. 2, since the welding point created inside the connection is. However, the arrangement of a display device presses some material into the recess 20. If it is provided, it is expedient that it can also be shaped at the manufacture 20 at an angle from the outside to the socket 1. It is essential how the heating conductor 3 runs in the gene. It is also possible, the Ausneh- embodiment according to Fig. 2, that the bottom 21 of the recess 20 to the inner wall 30 so that the 5 mung 20 is in the area of the heating conductor 3, i.e. material filling in the gap 31 directly into the recess 20 of that part of the sleeve sleeve 2 which can be long due to the supplied. Heating energy is melted. The advantage of the material pin 12 or 22 shown in FIGS. 2 and 3 that is pushed out in FIGS. 2 and 3 is volu-directions lies in their simplicity; no additional quantities are required in relation to the total molten material. The display device 10 can also be small in quantity and thus only affect the visual whitening process when the sleeve 1 is not already healed.
C C.
1 Blatt Zeichnungen 1 sheet of drawings
Claims (4)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH950878A CH632078A5 (en) | 1978-09-12 | 1978-09-12 | Collar for connecting line elements |
| DE19782848382 DE2848382C3 (en) | 1978-09-12 | 1978-11-08 | Sleeve for connecting line elements |
| AT803578A AT359786B (en) | 1978-09-12 | 1978-11-09 | SLEEVE TO CONNECT LINE ELEMENTS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH950878A CH632078A5 (en) | 1978-09-12 | 1978-09-12 | Collar for connecting line elements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH632078A5 true CH632078A5 (en) | 1982-09-15 |
Family
ID=4352735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH950878A CH632078A5 (en) | 1978-09-12 | 1978-09-12 | Collar for connecting line elements |
Country Status (3)
| Country | Link |
|---|---|
| AT (1) | AT359786B (en) |
| CH (1) | CH632078A5 (en) |
| DE (1) | DE2848382C3 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0173174A1 (en) * | 1984-08-28 | 1986-03-05 | Von Roll Ag | Weldable connecting element for joining or connecting thermoplastic pipes together |
| US4869533A (en) * | 1986-08-29 | 1989-09-26 | Georg Fischer Ag | Fitting of weldable thermoplastic material |
| DE19628916A1 (en) * | 1995-10-12 | 1997-04-17 | Fischer Georg Rohrleitung | Sleeve for connecting pipe parts |
| WO2019136508A2 (en) | 2019-03-25 | 2019-07-18 | Agru Kunststofftechnik Gesellschaft M.B.H. | Weldable connecting element for connecting or joining thermoplastic line elements, and a welding arrangement and a method for producing a welded connection |
| WO2020232479A1 (en) | 2019-05-22 | 2020-11-26 | Agru Kunststofftechnik Gesellschaft M.B.H. | Method for producing a welded connection, and welding device |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL185174C (en) * | 1976-03-22 | 1990-02-01 | Sturm Werner | WELDING SOCKET WITH INDICATOR FOR THE QUALITY OF THE WELD. |
| DE2760064C2 (en) * | 1976-03-22 | 1983-09-01 | Werner 4614 Hägendorf Sturm | Welding socket made of thermoplastic material |
| EP0058175B2 (en) * | 1980-08-22 | 1992-05-06 | Industrial Pipe Systems Pty. Limited | Electric fusion pipe fittings |
| US4629216A (en) * | 1982-06-29 | 1986-12-16 | I. C. Moller A/S | Method of joining prefabricated heat insulated pipes and a welding fitting therefore |
| EP0129505B1 (en) * | 1983-06-15 | 1987-03-11 | Geberit AG | Control circuit for switching off the heating current of a current-heated plastics welding sleeve |
| NL8400816A (en) * | 1984-03-14 | 1985-10-01 | Wavin Bv | METHOD FOR MANUFACTURING TUBE MUFF AND FITTINGS, AND APPARATUS FOR CARRYING OUT THIS METHOD AND TUBE SOCKET OR FITTING MADE ACCORDING TO THIS METHOD |
| JPS61136094A (en) * | 1984-11-30 | 1986-06-23 | フオン・ロ−ル・アクチエン・ゲゼルシヤフト | Electrically weldable sleeve for joining thermoplastic synthetic resin duct section |
| GB8526235D0 (en) * | 1985-10-24 | 1985-11-27 | Glynwed Tubes & Fittings | Electrofusion coupler |
| CA1321626C (en) * | 1988-07-21 | 1993-08-24 | Naotake Uda | Electrofusion of electrofusion joint, method of confirming state of fusion and fusion joint suitable for use in the methods |
| WO1990013411A1 (en) * | 1989-04-28 | 1990-11-15 | Wavin B.V. | Sleeve-shaped weld connecting piece of thermoplastic material with weld indicator element, and welded joint formed therewith |
| DE4018396C1 (en) * | 1990-06-08 | 1991-10-02 | Friedrichsfeld Gmbh Keramik- Und Kunststoffwerke, 6800 Mannheim, De | Weld fitting of thermoplastic weldable material - comprises thermal conductor and cut=out section open externally with display pin and annular display gap for sealing |
| DE102013102544A1 (en) * | 2013-03-13 | 2014-09-18 | Endress + Hauser Flowtec Ag | Flow meter with a plastic measuring tube |
| EP2873513B1 (en) * | 2013-11-19 | 2017-11-15 | Georg Fischer Rohrleitungssysteme AG | Moulded connection component for electrically welded tubes |
| CN111981214A (en) * | 2020-07-24 | 2020-11-24 | 湖北三江航天红阳机电有限公司 | Optical fiber sensor hot-melt packaging tape, metal pressure pipeline and manufacturing method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7121715U (en) * | 1971-09-02 | Mannesmann Ag | Resistance heating element for welding objects made of thermoplastic plastic | |
| DE7337975U (en) * | 1975-05-28 | Henkel & Cie Gmbh | Socket for gluing rigid PVC pipes | |
| CH504642A (en) * | 1969-01-17 | 1971-03-15 | Gebert & Cie | Plastic pipe sleeve for welded or packed jnt |
| CH544906A (en) * | 1971-11-12 | 1974-01-15 | Gerbert & Cie | Electrically heatable welding socket and process for their manufacture |
| NL175458C (en) * | 1973-03-14 | 1984-11-01 | Sturm Werner | METHOD FOR MANUFACTURING A WELDING SOCKET FOR THERMOPLASTIC TUBES. |
| DE2760064C2 (en) * | 1976-03-22 | 1983-09-01 | Werner 4614 Hägendorf Sturm | Welding socket made of thermoplastic material |
| DE2707492A1 (en) * | 1977-02-21 | 1978-08-24 | Bostik Gmbh | Joining plastics pipes using a sleeve having axially spaced grooves - with radial inlet and outlet bores through which is injected and ejected two-component bonding agent |
-
1978
- 1978-09-12 CH CH950878A patent/CH632078A5/en not_active IP Right Cessation
- 1978-11-08 DE DE19782848382 patent/DE2848382C3/en not_active Expired - Lifetime
- 1978-11-09 AT AT803578A patent/AT359786B/en not_active IP Right Cessation
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0173174A1 (en) * | 1984-08-28 | 1986-03-05 | Von Roll Ag | Weldable connecting element for joining or connecting thermoplastic pipes together |
| US4703150A (en) * | 1984-08-28 | 1987-10-27 | Von Roll Ag | Weldable connecting member for connecting or joining thermoplastic pipe elements |
| US4869533A (en) * | 1986-08-29 | 1989-09-26 | Georg Fischer Ag | Fitting of weldable thermoplastic material |
| DE19628916A1 (en) * | 1995-10-12 | 1997-04-17 | Fischer Georg Rohrleitung | Sleeve for connecting pipe parts |
| WO2019136508A2 (en) | 2019-03-25 | 2019-07-18 | Agru Kunststofftechnik Gesellschaft M.B.H. | Weldable connecting element for connecting or joining thermoplastic line elements, and a welding arrangement and a method for producing a welded connection |
| WO2020232479A1 (en) | 2019-05-22 | 2020-11-26 | Agru Kunststofftechnik Gesellschaft M.B.H. | Method for producing a welded connection, and welding device |
| US11987010B2 (en) | 2019-05-22 | 2024-05-21 | Agru Kunststofftechnik Gesellschaft M.B.H. | Method for producing a welded connection, and welding device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2848382C2 (en) | 1994-11-24 |
| ATA803578A (en) | 1980-04-15 |
| AT359786B (en) | 1980-11-25 |
| DE2848382C3 (en) | 1994-11-24 |
| DE2848382A1 (en) | 1980-03-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUE | Assignment |
Owner name: WAVIN AG |
|
| PL | Patent ceased |