DE2851548A1 - Shrinkage sleeve efficiency indicator - with deformable contours for insertion in sleeve to prove efficient contraction - Google Patents

Shrinkage sleeve efficiency indicator - with deformable contours for insertion in sleeve to prove efficient contraction

Info

Publication number
DE2851548A1
DE2851548A1 DE19782851548 DE2851548A DE2851548A1 DE 2851548 A1 DE2851548 A1 DE 2851548A1 DE 19782851548 DE19782851548 DE 19782851548 DE 2851548 A DE2851548 A DE 2851548A DE 2851548 A1 DE2851548 A1 DE 2851548A1
Authority
DE
Germany
Prior art keywords
sleeve
shrinkage
indicator
shrink
efficiency indicator
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.)
Withdrawn
Application number
DE19782851548
Other languages
German (de)
Inventor
Karl-Heinz Bohlmann
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19782851548 priority Critical patent/DE2851548A1/en
Publication of DE2851548A1 publication Critical patent/DE2851548A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/06—Making preforms having internal stresses, e.g. plastic memory
    • 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
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/06—Making preforms having internal stresses, e.g. plastic memory
    • B29C61/0608—Making preforms having internal stresses, e.g. plastic memory characterised by the configuration or structure of the preforms
    • B29C61/0666—Making preforms having internal stresses, e.g. plastic memory characterised by the configuration or structure of the preforms comprising means indicating that the shrinking temperature is reached
    • 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
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt 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
    • B29C66/53—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

A thermoplastic shrinkage sleeve is designed wide enough to insert between it and the package a shrinkage indicator. This shrinkage indicator can be made of any material to any shape or dimension but it must be closed and must stand out clearly. Its contours indicate whether or not the shrinkage forces have been effective and where an additional shrinkage by re-heating is required. This removes any uncertainty about the efficiency of a shrinkage package.

Description

Verfahren zur Sichtbarmachung Process for visualization

des kückschrumpfes von thermoplastischen Schrumpfmanschetten Beschreibung: Es ist eine bekannte Tatsache, daß ein großer Nachteil bei der Verwendung von thermoplastischen Schrumpfmanschetten darin zu sehen ist, daß nicht mit absoluter Sicherheit erkennbar wird, ob die angesetzte Manschette tatsächlich voll zum Aufschrumpfen gebracht wurde, das heißt, ob die Manschette rundherum zum festen Aufsitzen gelangt ist. of the back shrinkage of thermoplastic shrink sleeves Description: It is a known fact that there is a great disadvantage with the use of thermoplastic Shrink sleeves can be seen in it that cannot be identified with absolute certainty whether the attached cuff has actually been fully shrunk on, that is, whether the cuff is firmly seated all around.

Es wird zwar z.B. das Hervorquellen eingegebener Siegelmasse o.ä. als ein Zeichen dafür genommen, daß ein Pressdruck erfolgt, ebenso soll ein eingegebener Gummiring eine Sperrfunktion übernehmen. Da das Aufbringen der manschetten aber zumeist auf Baustellen unter ungünstigen Arbeitsbedingungen erfolgt, ist nie die Garantie dafür gegeben, daß zufolge des ausgelösten Rückschrumpfes die letztlich angestrebte Gas- oder Wasserdichte erreicht wird. It is true, for example, the swelling of entered sealing compound or the like. taken as a sign that a pressing pressure is taking place, likewise an entered Rubber ring take on a locking function. Since the application of the cuffs, however mostly takes place on construction sites under unfavorable working conditions, is never that A guarantee is given that, as a result of the triggered back shrinkage, the desired gas or water density is achieved.

Doch gerade diese absolute Sicherheit in der Verfahrenstechnik ist Voraussetzung dafür, daß thermoplastische Schrumpfmanschetten sich einen sicheren Marktplatz halten und die erfindung hat es sich zur Aufgabe gemacht, hierfür die Voraussetzungen zu schaffen. But it is precisely this absolute security in process engineering A prerequisite for thermoplastic shrink sleeves to be secure Keep the marketplace and the invention has made it its business to create the To create conditions.

Lösungsgemäß wird die Schrumpfmanschette in ihrem Durchmesser so weit gehalten, daß entweder auf die zu ummantelnden Rohrenden oder in die Manschette selbst ein "SCHkUM9FANZEIGER" gebracht werden kann. According to the solution, the diameter of the shrink sleeve is as follows kept that either on the pipe ends to be sheathed or in the sleeve even a "SCHkUM9FANZEIGER" can be brought.

Dieser "SCHRUMPFANZ-IGER" kann dem Material sowie seiner Form, Breite und auch Höhe nach beliebig ausgeführt sein, erforderlich ist aber, daß er geschlossen ist. This "SCHRUMPFANZ-IGER" can match the material as well as its shape, width and also height can be designed as desired, but it is necessary that it be closed is.

Seine Aufgabe ist es, sich unter der aufschrumpfenden Manschette konturenmäßig klar abzuzeichnen und damit deutlich erkennbar zu machen, wie intensiv und gleichmäßig sich die Rückstellkräfte auswirken und an welchen Stellen nötigenfalls durch weitere Temperaturzufuhr ein weiteres Nachschrumpfen zu erfolgen hat, damit die volle und feste Rundherumklammerung sichergestellt ist. Its job is to get under the shrinking sleeve to be drawn clearly in terms of contours and thus to make it clear how intense and the restoring forces have an even effect and at which points if necessary further post-shrinking has to be carried out by further supply of temperature so that the full and firm all-round clamping is ensured.

Claims (3)

Patentansprüche: Verfahren zur Sichtbarmachung des Rückschrumpfes von thermoplastischen Schrumpfmanschetten, dadurch gekennzeichnet, daß in eine thermoplastische Schrumpfmanschette oder auf das eingegebene Gut ein oder mehrere "SCHRUMPFANZEIGER" angebracht sind.Claims: Process for making the shrinkback visible of thermoplastic shrink sleeves, characterized in that in a thermoplastic Shrink sleeve or one or more "SHRINK INDICATORS" on the entered good are appropriate. 2. Verfahren nach 1, dadurch gekennzeichnet, daß diese "SCHRUMPFANZEIGER" aus unterschiedlichem Material der#Form, Breite und Höhe nach gefertigt, j.edoch ringförmig geschlossen sind.2. The method according to 1, characterized in that this "SHRINK INDICATOR" made of different material of the # shape, width and height, j.edoch are closed in a ring. 3. Verfahren nach 1 und 2, dadurch gekennzeichnet, daß die Manschetten selbst im Durchmesser um soviel weiter gehalten sind, als die Höhe der "SCHRUMPFANZEIGER" ausmacht.3. The method according to 1 and 2, characterized in that the sleeves even in diameter are kept so much wider than the height of the "SHRINK INDICATOR" matters.
DE19782851548 1978-11-29 1978-11-29 Shrinkage sleeve efficiency indicator - with deformable contours for insertion in sleeve to prove efficient contraction Withdrawn DE2851548A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19782851548 DE2851548A1 (en) 1978-11-29 1978-11-29 Shrinkage sleeve efficiency indicator - with deformable contours for insertion in sleeve to prove efficient contraction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782851548 DE2851548A1 (en) 1978-11-29 1978-11-29 Shrinkage sleeve efficiency indicator - with deformable contours for insertion in sleeve to prove efficient contraction

Publications (1)

Publication Number Publication Date
DE2851548A1 true DE2851548A1 (en) 1980-06-12

Family

ID=6055784

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19782851548 Withdrawn DE2851548A1 (en) 1978-11-29 1978-11-29 Shrinkage sleeve efficiency indicator - with deformable contours for insertion in sleeve to prove efficient contraction

Country Status (1)

Country Link
DE (1) DE2851548A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0041389A1 (en) * 1980-06-02 1981-12-09 RAYCHEM CORPORATION (a California corporation) Wraparound heat recoverable sleeves
EP0238325A2 (en) * 1986-03-19 1987-09-23 N.V. Raychem S.A. Indicator for dimensionally recoverable sleeves
FR2601285A1 (en) * 1986-07-10 1988-01-15 Pirelli Treficable THERMORETRACTABLE SLEEVE HAVING MEANS FOR CONTROLLING ITS UNIFORM HEATING, AND METHOD OF MANUFACTURING THE SLEEVE.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0041389A1 (en) * 1980-06-02 1981-12-09 RAYCHEM CORPORATION (a California corporation) Wraparound heat recoverable sleeves
EP0238325A2 (en) * 1986-03-19 1987-09-23 N.V. Raychem S.A. Indicator for dimensionally recoverable sleeves
EP0238325A3 (en) * 1986-03-19 1988-10-05 N.V. Raychem S.A. Indicator for dimensionally recoverable sleeves
FR2601285A1 (en) * 1986-07-10 1988-01-15 Pirelli Treficable THERMORETRACTABLE SLEEVE HAVING MEANS FOR CONTROLLING ITS UNIFORM HEATING, AND METHOD OF MANUFACTURING THE SLEEVE.
EP0253721A1 (en) * 1986-07-10 1988-01-20 Treficable Pirelli Heat-shrinkable sleeve comprising means for controlling its uniform heating and method for its manufacture

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