DE1032623B - Glued connection for pipes - Google Patents

Glued connection for pipes

Info

Publication number
DE1032623B
DE1032623B DESCH20616A DESC020616A DE1032623B DE 1032623 B DE1032623 B DE 1032623B DE SCH20616 A DESCH20616 A DE SCH20616A DE SC020616 A DESC020616 A DE SC020616A DE 1032623 B DE1032623 B DE 1032623B
Authority
DE
Germany
Prior art keywords
pipe
pipes
pipe socket
tube
connection
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
DESCH20616A
Other languages
German (de)
Inventor
Paul Schulte-Huermann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alwa Deutsche GmbH
Original Assignee
Alwa Deutsche 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
Application filed by Alwa Deutsche GmbH filed Critical Alwa Deutsche GmbH
Priority to DESCH20616A priority Critical patent/DE1032623B/en
Publication of DE1032623B publication Critical patent/DE1032623B/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint 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
    • B29C66/112Single lapped joints
    • B29C66/1122Single lap to lap joints, i.e. overlap joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General 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
    • B29C66/51Joining 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
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)

Description

Klebeverbindung für Rohre Die Erfindung bezieht sich auf eine Klebeverhindung für Rohre, insbesondere mit den Rohrstutzen der Sammelkammern von Wärmeaustauschern bzw. von Kühlern. Bisher wurden derartige Verbindungen durch Einschweißen, Einlöten oder Einpressen des einen in das andere der zu verbindenden Teile hergestellt, Dabei traten inshescndere bei Verwendung von Rohren aus Aluminium und seinen Legierungen. soweit es sich um Lötverfahren handelt, erhebliche Schwierigkeiten durch Lokalelementbildung auf. während beim Schweißen die Festigkeit erheblich beeinträchtigt wird. Die in letzter Zeit bekanntgewordenell, auf anderen Gebieten angewandten Metallklebeverbindungen beheben diese Mängel zwar zum Teil, weisen jedoch vornehmlich dort, wo die Ver-I)indungen wie hei Wärmeaustauschern ständig der Beeinflussung durch heißes Wasser oder Dampf ausgesetzt sind, nicht die für längere Zeit zu fordernde Beständigkeit auf, da sie, wie z. B. die Äthoxylin-und Epoxydharze, infolge ihres hohen Äthoxsauerstoffgehaltes ein beträchtliches Wasseraufnahmevermögen besitzen. Die bisher bekanntgewordenen Maßnahen, aus diesem Grunde das Klehemittel vor Berührung mit den Durchflu,ßmedien lurch geeignete konstruktive GestaltulDg der Verbindungsstelle zu schützen, haben jedoch kein zufriedenstellendes Ergebnis auf dem Gebiet der Wärmeaustauscher gezeitigt.Adhesive connection for pipes The invention relates to an adhesive connection for pipes, especially with the pipe sockets of the collecting chambers of heat exchangers or from coolers. So far, such connections were made by welding, soldering or pressing one of the parts to be connected into the other, thereby occurred especially when tubes made of aluminum and its alloys were used. as far as the soldering process is concerned, considerable difficulties due to local element formation on. while when welding, the strength is significantly impaired. In the has recently become known, in other fields applied metal adhesive connections Although these deficiencies partially remedy, they mainly point where the connections like hot heat exchangers, they are constantly influenced by hot water or steam are not exposed to the resistance required for a longer period of time, as they such as B. the ethoxylin and epoxy resins, due to their high ethoxyl oxygen content have a considerable water absorption capacity. The ones that have become known so far Measures, for this reason, the adhesive from contact with the flow media The connection point must be protected by a suitable structural design however, it has not produced a satisfactory result in the field of heat exchangers.

Erfindu,ngbgemäß wird in dieser Richtung eine Verhesserung erzielt, wenn der Rohrstutzen an den Sammelkammern von Wärmeaustauschern an seinem inneren Ende einen konisch ausgesenkten Kragen aufweist, in welchen sich das an seinem Einsteckende ebenfalls konisch eingezogene Rohr setzt. Dadurch entsteht eine hei Rohr- und Schlauchanschlüssen an sich bekannte Konusdichtung zwischen den zu verbindenden Teilen. welche die Klebstoffschicht vom f)urchflußmedium trennt. Diese Ausführung bietet jedoch speziell für Klebeverbindungen noch Vorteile insofern. als sich Rohr und Rohrstutzen außer am ausgesenkten Kragen des Rohrstutzens auch nodi etwa im Mittelteil der meist schwach konisch verjüngten Innenwand des Rohrstutzens heriillrell, so daß das Rohr beim Einsetzen im Rohrstutzen genau geführt ist, was durch die schmalen Anlageflächen an dem konisch geformten Dichtungsluid allein nicht der Fall ist. Gleichzeitig werden beiderseits dieser Berührungsstelle im Querschnitt schlank keilförmige Spalte für den Klebstoff gebildet. was bei der hekanten Abhängigkeit der Festigkeit einer Kleheverbindung von der Dicke der Klebstoffschicht und hei den fertigungsbedingten Maßahweichungen der Durchmesser der Rohre von besonderem zers ist. According to the invention, an improvement is achieved in this direction, when the pipe socket on the collecting chambers of heat exchangers on its interior End has a conically recessed collar, in which the at its insertion end also conically drawn in tube sets. This creates hot pipe and hose connections known conical seal between the parts to be connected. which is the adhesive layer separates from the f) flow medium. However, this version offers special for adhesive connections still advantages in this respect. than the pipe and pipe socket except for the recessed collar of the pipe socket also nodi approximately in the middle part of the mostly slightly conically tapered Inner wall of the pipe socket heriillrell, so that the pipe when inserted in the pipe socket exactly what is done by the narrow contact surfaces on the conically shaped Sealing fluid alone is not the case. At the same time, both sides of this Contact point formed in cross-section slender wedge-shaped gap for the adhesive. what about the hekanten dependency of the strength of an adhesive connection on the thickness the adhesive layer and, in the case of manufacturing-related dimensional deviations, the diameter the pipes are of particular zers.

In der Zeichnung ist die Erfindung in einem Ausführungsbeispiel dargestellt, und zwar zeigt Fig. 1 einen Schnitt nach Linie A-B der Fig. 2, Fig. 2 einen Mittellängsschnitt durch die Verbindungsstelle. In the drawing, the invention is shown in an exemplary embodiment, 1 shows a section along line A-B of FIG. 2, FIG. 2 shows a central longitudinal section through the junction.

Erfindungsgemäß ist der Sammelkammerstuzen 1 an seinem Innenrand mit einem Kragen 2 versehen, der zweckmäßigerweise eine konisch verlaufende Ringfläc'hle besitzt, an welcher das ebenfalls konisch geformte Ende 3 des eingesteckten Rohres 4 dichtend anliegt und somit dem Wasser den Zutritt zu der Klebmasse 5 verwehrt. Um zu verhindern, daß die Verbindung zu atmen beginnt, wobei sich Längsrisse in der Klebmasse bilden, wird weiterhin vorgeschlagen. die Sammelkammerstutzen im Vergleich zu dem einzuklebenden Rohr aus einem Werkstoff mit geringerem Wärmeausdehnungskoeffizienten herzustellen. Zu diesem Zweck könnte z. B. der Sammelkammerstutzen aus einer Leichtmetall-Gießlegierung und die Rohre aus einer Knetlegierung bestehen, Da die Leichtmetallgußteile in der Regel mit einer gewissen Konizität behaftet sind, ergeben sich hieraus in besonders günstiger Auswirkung der konstruktiven Ausbildung nach der Erfindung eine feste Anlage der Verbindungsteile im Mittelbereich 6 des Stutzenhalses sowie die sich von dort aus allmählich erweiternden und mit Klebmasse gefiillten Fugen 5, 7. According to the invention, the collecting chamber support 1 is on its inner edge provided with a collar 2, which expediently has a conical annular surface has, at which the likewise conically shaped end 3 of the inserted tube 4 rests in a sealing manner and thus denies access to the adhesive 5 for the water. To prevent the joint from starting to breathe, causing longitudinal tears in Form the adhesive is also proposed. the collection chamber nozzle in comparison to the pipe to be glued made of a material with a lower coefficient of thermal expansion to manufacture. For this purpose, z. B. the plenum nozzle made of a light metal casting alloy and the pipes are made of a wrought alloy, Since the light metal castings in the Are usually afflicted with a certain conicity, result from this in particular favorable effect of the structural training according to the invention a solid Plant of the connecting parts in the central area 6 of the nozzle neck as well as the from there gradually widening joints 5, 7 filled with adhesive.

Außerdem schiebt sich heim Einpressen des Rohres ein Teil der Klebmasse aus der Fuge 5 nach innen heraus. einen Wulst 8 bildend, und sichert die eigentliche Klehestelle zusätzlich zu der durch den Kragen 2 und das Rohrende 3 gehildeten metallischen Dichtung vor einer schädlichen Berührung mit dem in den Rohren geleiteten Mittel.In addition, when the pipe is pressed in, part of the adhesive is pushed up out of the joint 5 inwards. forming a bead 8, and secures the actual Klehstelle in addition to the metallic formed by the collar 2 and the pipe end 3 Seal against harmful contact with the medium conducted in the pipes.

Claims (4)

PATENTANSPRÜCHE: 1. Kleleverbindung für Rohre mit den Rohrstutzen der Sammelkammern von Wärmeaustauschern bzw. Kühlern, dadurch gekennzeichnet, daß die Sammelkammerstutzen (1) an ihrem Innenrand mit einem Kragen (2) versehen sind, gegen dessen zweckmäßigerweise konisch verlaufende Ringfläche sich das ebenfalls konisch geformte Ende (3) des eingeschobenen Rohres (4) dichtend anlegt. PATENT CLAIMS: 1. Klele connection for pipes with pipe sockets the collecting chambers of heat exchangers or coolers, characterized in that that the collecting chamber nozzles (1) are provided with a collar (2) on their inner edge, against its expediently conically extending annular surface, this also applies conically shaped end (3) of the inserted tube (4) creates a seal. 2. Klebeverbindung für Rohre nach Anspruch 1. dadurch gekennzeichnet, daß die Innenwand des Rohrstutzens (1) in an sich bekannter Weise schwach konisch ist und das Rohr (4) auf Einschublänge so eingezogen ist, daß es eine schwachballige Form aufweist, wodurch sich Rohrstutzen und Rohr etwa im Mittelbereich (6) des Stutzens berühren. 2. Adhesive connection for pipes according to claim 1, characterized in that that the inner wall of the pipe socket (1) is weakly conical in a manner known per se is and the tube (4) is drawn in to the length of insertion so that it is a weakly crowned Has shape, whereby the pipe socket and pipe approximately in the middle region (6) of the socket touch. 3. Klebeverbindung für Rohre nach Anspruch 1 oder 2. dadurch gekennzeichnet, daß der Rohrstutzen einen geringeren Wärmeausdehnungskoeffizienten aufweist als das eingeschobene Rohr. 3. Adhesive connection for pipes according to claim 1 or 2, characterized in that that the pipe socket has a lower coefficient of thermal expansion than the inserted tube. 4. Islebeverbindung für Rohre nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß der Rohrstutzen (1) aus einer Leichtmetall-Gießlegierung und das eingeklebte Rohr (4) aus einer Leichtmetall-Enetlegierung hesteht. 4. Islebe connection for pipes according to claim 1, 2 or 3, characterized characterized in that the pipe socket (1) made of a light metal casting alloy and the glued-in tube (4) is made of a light metal alloy. In Betracht gezogene Druckschriften: Schweizerische Patentschrift Nr. 278 090: französische Patentschrift Nr. 783 763: USA.-Patentschrift Nr. 1 563 269. Publications considered: Swiss patent specification No. 278 090: French Patent No. 783 763: USA. Patent No. 1 563 269.
DESCH20616A 1956-08-13 1956-08-13 Glued connection for pipes Pending DE1032623B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH20616A DE1032623B (en) 1956-08-13 1956-08-13 Glued connection for pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH20616A DE1032623B (en) 1956-08-13 1956-08-13 Glued connection for pipes

Publications (1)

Publication Number Publication Date
DE1032623B true DE1032623B (en) 1958-06-19

Family

ID=7428816

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH20616A Pending DE1032623B (en) 1956-08-13 1956-08-13 Glued connection for pipes

Country Status (1)

Country Link
DE (1) DE1032623B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1235689B (en) * 1961-06-26 1967-03-02 Atlas Werke G M B H Process for the production and sealing of pipes in the pipe bases of heat exchangers
EP0043225A1 (en) * 1980-06-25 1982-01-06 Butler Taper Joint, Inc. Mechanical pipe joint and method of forming same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1563269A (en) * 1924-03-25 1925-11-24 Emery E Ferguson Pipe joint and method of making the same
FR783763A (en) * 1934-03-26 1935-07-18 Chemical resistant metal lapped gasket
CH278090A (en) * 1949-05-06 1951-09-30 Somo Societe Pour Les Metaux O Process for connecting two tubes of the same caliber, made of thermoplastic material, end to end, and a set of two connected tubes obtained by this process.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1563269A (en) * 1924-03-25 1925-11-24 Emery E Ferguson Pipe joint and method of making the same
FR783763A (en) * 1934-03-26 1935-07-18 Chemical resistant metal lapped gasket
CH278090A (en) * 1949-05-06 1951-09-30 Somo Societe Pour Les Metaux O Process for connecting two tubes of the same caliber, made of thermoplastic material, end to end, and a set of two connected tubes obtained by this process.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1235689B (en) * 1961-06-26 1967-03-02 Atlas Werke G M B H Process for the production and sealing of pipes in the pipe bases of heat exchangers
EP0043225A1 (en) * 1980-06-25 1982-01-06 Butler Taper Joint, Inc. Mechanical pipe joint and method of forming same

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