WO2006121418A1 - An improvement in the multi-layered composite pipe - Google Patents

An improvement in the multi-layered composite pipe Download PDF

Info

Publication number
WO2006121418A1
WO2006121418A1 PCT/TR2006/000020 TR2006000020W WO2006121418A1 WO 2006121418 A1 WO2006121418 A1 WO 2006121418A1 TR 2006000020 W TR2006000020 W TR 2006000020W WO 2006121418 A1 WO2006121418 A1 WO 2006121418A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
composite pipe
aluminum
folio
composite
Prior art date
Application number
PCT/TR2006/000020
Other languages
French (fr)
Inventor
Tamer Birtane
Zafer Gemici
Ismail Teke
Original Assignee
Dizayn Teknik Plastik Boru Ve Elemanlari A.S.
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 Dizayn Teknik Plastik Boru Ve Elemanlari A.S. filed Critical Dizayn Teknik Plastik Boru Ve Elemanlari A.S.
Priority to DE112006001201T priority Critical patent/DE112006001201T5/en
Priority to ROA200700784A priority patent/RO123607B1/en
Priority to CN2006800254105A priority patent/CN101223396B/en
Priority to EA200702462A priority patent/EA012978B1/en
Priority to UAA200714031A priority patent/UA92347C2/en
Priority to ES200750077A priority patent/ES2346384B2/en
Publication of WO2006121418A1 publication Critical patent/WO2006121418A1/en

Links

Classifications

    • 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
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/02—Welded joints
    • 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
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/18—Protection of pipes or pipe fittings against corrosion or incrustation specially adapted for pipe fittings
    • F16L58/185—Protection of pipes or pipe fittings against corrosion or incrustation specially adapted for pipe fittings for joints with sleeve or 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
    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • 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
    • B29C66/342—Preventing air-inclusions
    • 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
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2305/00—Use of metals, their alloys or their compounds, as reinforcement
    • B29K2305/02—Aluminium

Definitions

  • the invention relates to the product used in the sanitary systems and known as the composite pipe.
  • the invention relates particularly to the combination of the multi-layered composite pipes.
  • the multi-layered composite pipes are the products designed for use in conveying the hot fluids.
  • the plastic pipes tend to expand longitudinally with the increase in temperature.
  • a material derived from metal having an expansion coefficient lower than that of the plastic material is combined with the plastic and a composite pipe is obtained.
  • another reason for the preference of the composite pipes for the kombi systems used in the buildings is the necessity to prevent the entrance of oxygen to the system.
  • the interior structure of the currently used composite pipes comprises a PPR pipe in which the fluid passes, a material having adhesive properties coated on the PPR pipe, aluminum folio coated on the said adhesive material, a material having adhesive properties coated on the said aluminum folio and a protective outer coating applied on the said adhesive material.
  • Aluminum folio is adhered onto the PPR pipe produced with a wall thickness compliant with the standards and finally, the product is finished by applying a thin coating and it is presented to the marketplace.
  • the composite pipes and the extension pieces may be combined by means of socket weld.
  • the PPR outer coating and the aluminum folio must be peeled and removed, to enable the combining process to be performed. In this way, the total wall thickness is brought to the standard pipe wall thickness without folio. Otherwise, the compatibility problem with the extension pieces is encountered.
  • the aluminum folio following its combination with the extension pieces, is produced closer to the outer layer within the total pipe wall thickness, due to the risk of the pipe being burst by the pressurized water entering between the folio and plastic material.
  • the object of the invention is to eliminate the existing drawbacks by means of the improvements provided in the products used in the sanitary systems and known as the multi-layered composite pipe.
  • the improvements have been provided in the multi- layered composite pipes resistant to pressure and corrosion, which are used in the sanitary systems, comprising at least one inner pipe with low permeability for oxygen and at least one aluminum folio coated on the said inner pipe and having an expansion coefficient with respect to temperature variation that is lower as compared to the said inner pipe.
  • At least one filling duct is provided in the form of a canal that makes it possible to shave the surface of the said aluminum coating visible at the end part of the composite pipe and to leave it inside the plastic and to embed therein and to cover the shaved volume by filling with plastic material.
  • the material and time consumption have been minimized.
  • the labor faults have also been reduced during the pipe jointing process.
  • the time needed for the weld preparation has been reduced and the pipe layout process has been made faster.
  • the socket welding is preferably employed with the joint parts, without a direct peeling process off any surface. Since the aluminum folio is not peeled off, a part equal to the length of the welding enters the joint piece. In this way, a major part of the extension piece permeating oxygen is covered with aluminum folio. As a result, the oxygen diffusion in the extension piece is greatly reduced. Because there is no shaving (peeling) off the surface, the waste of plastic and aluminum folio encountered during the peeling process is prevented. Consequently, the total wall thickness is made equal to the wall thickness of the standard pipe without a folio.
  • Another preferred embodiment of the invention is characterized in that the said inner pipe diameter is reduced, in order to place the aluminum folio found inside the said composite pipe at more interior locations inside the wall thickness of the composite pipe.
  • Another preferred embodiment of the invention is characterized in that a coating is obtained by filling the said fill duct with plastic material using preferably a perforated plate, in order to avoid the risk for the composite pipe being burst by the pressurized fluid entering between the inner pipe and the aluminum folio following the joining process inside the said composite pipe by means of preferably the pipe welding applied on said composite pipe.
  • a coating is obtained by filling the said fill duct with plastic material using preferably a perforated plate, in order to avoid the risk for the composite pipe being burst by the pressurized fluid entering between the inner pipe and the aluminum folio following the joining process inside the said composite pipe by means of preferably the pipe welding applied on said composite pipe.
  • Figure-1a is a perspective view of the disassembled composite pipe according to a representative application of the invention.
  • Figure-1 b is a perspective view of the composite pipe according to a representative application of the invention. 00020
  • Figure-1c is a front sectional view of the composite pipe according to a representative application of the invention.
  • Figure-2 is the side sectional view of an example of a plate according to a representative application of the invention.
  • FIG. 1a owing to a filling duct (3.1) in the form of a canal, it is possible to shave the surface of the aluminum coating (3) visible at the end part of the composite pipe and to leave it inside the plastic and to embed therein and to cover the shaved volume by filling with plastic material, in order to secure the aluminum coating (3) along with the inner pipe (1) inside the extension piece without peeling off the said coating during the joining of the said composite pipe by means of the extension pieces and preferably the welding process. In this way, it is made possible to join the composite pipes to one another, without having to peel off the outer coating (4) and the aluminum folio (3). Thus the material and time consumption are minimized. Also, the labor faults are also reduced during the pipe jointing process. Moreover, the time needed for the weld preparation is reduced and the pipe layout process is made faster.
  • the said composite pipe is characterized in that its external diameter is equivalent to the external diameter of a standard flat pipe.
  • the socket welding is preferably employed with the joint parts, without a direct peeling process off any surface. Since the aluminum folio (3) is not peeled off, a part equal to the length of the welding enters the joint piece. In this way, a major part of the extension piece permeating oxygen is covered with aluminum folio (3). As a result, the oxygen diffusion in the extension piece is greatly reduced. Because there is no shaving (peeling) off the surface, the waste of plastic and aluminum folio (3) encountered during the peeling process is prevented. Consequently, the total wall thickness is made equal to the wall thickness of the standard pipe without a folio.
  • the amount of consumption also decreases. This makes it possible to avoid wasting excessive amounts of plastic raw material. Since the aluminum folio (3) is brought close to the center of the composite pipe, both the outer and the inner layer show equivalent mechanical resistance to the expansion. Accordingly, the adhesive (2) on the aluminum folio (3) transfers the expansion forces coming from both the inner and the outer layer to the folio in an equal manner. Thus the force is divided into two. However, in the existing system, only the adhesive on the inner layer is subject to force.
  • the said inner pipe (1) diameter is reduced, in order to place the aluminum folio (3) found inside the said composite pipe at more interior locations inside the wall thickness of the composite pipe.
  • the isolation coating is obtained by filling the said fill duct (3.1) with plastic material using preferably a perforated plate, in order to avoid the risk for the composite pipe being burst by the pressurized fluid entering between the inner pipe (1) and the aluminum folio (3) following the joining process inside the said composite pipe by means of preferably the pipe welding applied on said composite pipe.
  • the aluminum folio (3) is shaved off from the composite pipe front section in a way to remove some portion.
  • the heater plate bearing a ventilation hole (5.1) and having a projection (5.2) at its interior may also be used to minimize the possible user faults.
  • the plate (5) is preferably used in the said hot pipe welding, there is a hole (5.1) to provide the air entrapped inside to be released. Owing to the said hole (5.1 ), the user ensures that he/she presses the composite pipe to the bottom of the plate (5).
  • the composite pipe is shaved off at its front face. Meanwhile, a very low amount of filings is removed to form a duct (3.1) to house the aluminum folio (3).
  • the molten plastic material fills in the said duct (3.1 ) and covers the aluminum folio (3).

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

The invention is a multi-layered composite pipe resistant to pressure and corrosion, which is used in the sanitary systems, comprising at least one inner pipe (1) with low permeability for oxygen and at least one aluminum folio (3) coated on the said inner pipe (1) and having an expansion coefficient with respect to pressure or temperature variation that is lower as compared to the said inner pipe (1 ), wherein, in order to secure the aluminum coating (3) along with the inner pipe (1) inside the extension piece without peeling off the said coating, at least one filling duct (3.1 ) is provided in the form of a canal that makes it possible to shave the surface of the said aluminum coating (3) visible at the end part of the composite pipe and to leave it inside the plastic and to embed therein and to cover the shaved volume by filling with plastic material.

Description

AN IMPROVEMENT IN MULTI-LAYERED COMPOSITE PIPE
Technical Field
The invention relates to the product used in the sanitary systems and known as the composite pipe.
The invention relates particularly to the combination of the multi-layered composite pipes.
Background of the Invention
The multi-layered composite pipes are the products designed for use in conveying the hot fluids. As already known, the plastic pipes tend to expand longitudinally with the increase in temperature. In order to prevent this expansion, a material derived from metal having an expansion coefficient lower than that of the plastic material is combined with the plastic and a composite pipe is obtained. Besides expansion, another reason for the preference of the composite pipes for the kombi systems used in the buildings is the necessity to prevent the entrance of oxygen to the system.
The interior structure of the currently used composite pipes comprises a PPR pipe in which the fluid passes, a material having adhesive properties coated on the PPR pipe, aluminum folio coated on the said adhesive material, a material having adhesive properties coated on the said aluminum folio and a protective outer coating applied on the said adhesive material. Aluminum folio is adhered onto the PPR pipe produced with a wall thickness compliant with the standards and finally, the product is finished by applying a thin coating and it is presented to the marketplace.
In practice, the composite pipes and the extension pieces may be combined by means of socket weld. During the practice, the PPR outer coating and the aluminum folio must be peeled and removed, to enable the combining process to be performed. In this way, the total wall thickness is brought to the standard pipe wall thickness without folio. Otherwise, the compatibility problem with the extension pieces is encountered.
In the existing systems, the aluminum folio, following its combination with the extension pieces, is produced closer to the outer layer within the total pipe wall thickness, due to the risk of the pipe being burst by the pressurized water entering between the folio and plastic material. This means the inner layer must be produced with a size capable of bearing the pressure, in accordance with the standards.
In the said composite pipe practices, it is a must to peel off the end section of the pipe by means of a peeling tool, in order to ensure compatible operation with the joining elements, hence material and time losses happen. There is also the possibility for the labor faults. Another disadvantage of the said practice is that it takes long to lay the system, as the welding preparation is a time consuming process.
It is unavoidable for the said PPR pipe to have greater total wall thickness, in order for it to bear the pressure caused by the possible penetration of the pressurized fluid between the pipe and the aluminum folio, following the joining process. This leads to an excessive use of the plastic raw material and aluminum folio.
Object of the Invention
Based on the known status of the art, the object of the invention is to eliminate the existing drawbacks by means of the improvements provided in the products used in the sanitary systems and known as the multi-layered composite pipe.
It is another object of the invention to provide a pipe having a standard diameter of use, without the need to peel off the said outer coating and aluminum folio layers during the joining of the said composite pipes. In this way, since there has left no need for the peeling process, it is made possible to include the aluminum folio and the outer coating in the total wall thickness. Accordingly, a major portion of the joining piece permeating the oxygen is provided to be coated with the aluminum folio. In order to attain the said objects, the improvements have been provided in the multi- layered composite pipes resistant to pressure and corrosion, which are used in the sanitary systems, comprising at least one inner pipe with low permeability for oxygen and at least one aluminum folio coated on the said inner pipe and having an expansion coefficient with respect to temperature variation that is lower as compared to the said inner pipe.
According to a preferred embodiment of the invention, in order to secure the aluminum coating along with the inner pipe inside the extension piece without peeling off the said coating during the joining of the said composite pipe by means of the extension pieces, at least one filling duct is provided in the form of a canal that makes it possible to shave the surface of the said aluminum coating visible at the end part of the composite pipe and to leave it inside the plastic and to embed therein and to cover the shaved volume by filling with plastic material. In this way, it is made possible to join the composite pipes to one another, without having to peel off the aluminum folio. Thus the material and time consumption have been minimized. Also, the labor faults have also been reduced during the pipe jointing process. Moreover, the time needed for the weld preparation has been reduced and the pipe layout process has been made faster.
Another preferred embodiment of the invention is characterized in that the external diameter of the said composite pipe is equivalent to the external diameter of a standard flat pipe. Accordingly, the socket welding is preferably employed with the joint parts, without a direct peeling process off any surface. Since the aluminum folio is not peeled off, a part equal to the length of the welding enters the joint piece. In this way, a major part of the extension piece permeating oxygen is covered with aluminum folio. As a result, the oxygen diffusion in the extension piece is greatly reduced. Because there is no shaving (peeling) off the surface, the waste of plastic and aluminum folio encountered during the peeling process is prevented. Consequently, the total wall thickness is made equal to the wall thickness of the standard pipe without a folio. As the circumference where the aluminum folio is wrapped decreases, the amount of consumption also decreases. This has made it possible to avoid wasting excessive amounts of plastic raw material. Since the aluminum folio is brought close to the center of the composite pipe, both the outer and the inner layer show equivalent resistance to the expansion. Accordingly, the adhesive on the aluminum folio transfers the expansion forces coming from both the inner and the outer layer to the folio in an equal manner. Thus the force is divided into two. However, in the existing system, only the adhesive on the inner layer is subject to force. As a result, the front pipe surface is provided to be perpendicular to the axis and the zone housing the aluminum folio to be carved along the whole circumference.
Another preferred embodiment of the invention is characterized in that the said inner pipe diameter is reduced, in order to place the aluminum folio found inside the said composite pipe at more interior locations inside the wall thickness of the composite pipe.
Another preferred embodiment of the invention is characterized in that a coating is obtained by filling the said fill duct with plastic material using preferably a perforated plate, in order to avoid the risk for the composite pipe being burst by the pressurized fluid entering between the inner pipe and the aluminum folio following the joining process inside the said composite pipe by means of preferably the pipe welding applied on said composite pipe. Thus there has left no need for the technique to produce the aluminum folio closer to the outer layer inside the total pipe wall thickness as a solution for the risk of the composite pipe of being burst by the pressurized water entering between the extension pieces and the plastic material.
Description of the Drawings
Figure-1a is a perspective view of the disassembled composite pipe according to a representative application of the invention. Figure-1 b is a perspective view of the composite pipe according to a representative application of the invention. 00020
Figure-1c is a front sectional view of the composite pipe according to a representative application of the invention.
Figure-2 is the side sectional view of an example of a plate according to a representative application of the invention.
Reference Numbers
1 Inner pipe 4 Outer coating
2 Adhesive layer 5 Plate body
3 Aluminum folio 5.1 Ventilation hole
3.1 Filling duct 5.2 Pipe bearing projection
Detailed Description of the Invention
The embodiment of the invention provided in the figures show the sectional views of the composite pipe used in the sanitary installations working under different temperatures and pressures. In Figure-1a, owing to a filling duct (3.1) in the form of a canal, it is possible to shave the surface of the aluminum coating (3) visible at the end part of the composite pipe and to leave it inside the plastic and to embed therein and to cover the shaved volume by filling with plastic material, in order to secure the aluminum coating (3) along with the inner pipe (1) inside the extension piece without peeling off the said coating during the joining of the said composite pipe by means of the extension pieces and preferably the welding process. In this way, it is made possible to join the composite pipes to one another, without having to peel off the outer coating (4) and the aluminum folio (3). Thus the material and time consumption are minimized. Also, the labor faults are also reduced during the pipe jointing process. Moreover, the time needed for the weld preparation is reduced and the pipe layout process is made faster.
The said composite pipe is characterized in that its external diameter is equivalent to the external diameter of a standard flat pipe. Accordingly, the socket welding is preferably employed with the joint parts, without a direct peeling process off any surface. Since the aluminum folio (3) is not peeled off, a part equal to the length of the welding enters the joint piece. In this way, a major part of the extension piece permeating oxygen is covered with aluminum folio (3). As a result, the oxygen diffusion in the extension piece is greatly reduced. Because there is no shaving (peeling) off the surface, the waste of plastic and aluminum folio (3) encountered during the peeling process is prevented. Consequently, the total wall thickness is made equal to the wall thickness of the standard pipe without a folio. As the circumference where the aluminum folio (3) is wrapped decreases, the amount of consumption also decreases. This makes it possible to avoid wasting excessive amounts of plastic raw material. Since the aluminum folio (3) is brought close to the center of the composite pipe, both the outer and the inner layer show equivalent mechanical resistance to the expansion. Accordingly, the adhesive (2) on the aluminum folio (3) transfers the expansion forces coming from both the inner and the outer layer to the folio in an equal manner. Thus the force is divided into two. However, in the existing system, only the adhesive on the inner layer is subject to force.
The said inner pipe (1) diameter is reduced, in order to place the aluminum folio (3) found inside the said composite pipe at more interior locations inside the wall thickness of the composite pipe.
The isolation coating is obtained by filling the said fill duct (3.1) with plastic material using preferably a perforated plate, in order to avoid the risk for the composite pipe being burst by the pressurized fluid entering between the inner pipe (1) and the aluminum folio (3) following the joining process inside the said composite pipe by means of preferably the pipe welding applied on said composite pipe. Thus there has left no need for the technique to produce the aluminum folio (3) closer to the outer layer inside the total pipe wall thickness as a solution for the risk of the composite pipe of being burst by the pressurized water entering between the extension pieces and the plastic material.
Plastic material fills in the said carved zone, during the application of the socket welding. Thus, the aluminum folio visible in the front section remains inside the plastic and the possibility of water leak through the aluminum folio is eliminated. It is possible to minimize the user faults, in case preferably the plate illustrated in Figure-2 is used to join the composite pipes obtained with the said method, owing to the possibility to use existing plates in said process. Consequently, the front section of the composite pipe is also smoothened during the formation of the duct (3.1) prepared by way of shaving to some extent.
The aluminum folio (3) is shaved off from the composite pipe front section in a way to remove some portion. Although it is possible to use the existing plates during the socket welding preferably applied to join the composite pipes, the heater plate bearing a ventilation hole (5.1) and having a projection (5.2) at its interior may also be used to minimize the possible user faults. When the plate (5) is preferably used in the said hot pipe welding, there is a hole (5.1) to provide the air entrapped inside to be released. Owing to the said hole (5.1 ), the user ensures that he/she presses the composite pipe to the bottom of the plate (5). There is a projection (5.2) bearing the pipe from the inside. Thanks to the presence of the projection (5.2), the molten material is directed towards the inside of the duct (3.1) and prevents the formation of lip in case of the user pressing excessively.
During the joining of the pipes, the composite pipe is shaved off at its front face. Meanwhile, a very low amount of filings is removed to form a duct (3.1) to house the aluminum folio (3). During the preferably applied socket welding process, the molten plastic material fills in the said duct (3.1 ) and covers the aluminum folio (3). The invention may not be limited to the representative applications provided in this section. Based on the scope of the claims, the alternative embodiments may be produced by the persons skilled in the technical field.

Claims

1. The invention relates to the multi-layered composite pipes resistant to pressure and corrosion, which are used in the sanitary systems, comprising at least one inner pipe (1) with low permeability for oxygen and at least one aluminum folio (3) coated on the said inner pipe (1) and having an expansion coefficient with respect to temperature variation that is lower as compared to the said inner pipe (1), werein; comprises,
- in order to secure the aluminum coating (3) along with the inner pipe (1 ) inside the extension piece without peeling off the said coating during the joining of the said composite pipe by means of the extension pieces and preferably welding process, at least one filling duct (3.1 ) is provided in the form of a canal that makes it possible to shave the surface of the said aluminum coating (3) visible at the end part of the composite pipe and to leave it inside the plastic and to embed therein and to cover the shaved volume by filling with plastic material.
2. A multi-layered composite pipe according to claim 1 characterized in that the external diameter of the said composite pipe is equivalent to the external diameter of a standard flat pipe.
3. A multi-layered composite pipe according to any one of the preceding claims characterized in that the said inner pipe (1) diameter is reduced, in order to place the aluminum folio (3) found inside the said composite pipe at more interior locations inside the wall thickness of the composite pipe.
4. A multi-layered composite pipe according to any one of the preceding claims characterized in that a coating is obtained by filling the said fill duct (3.1) with plastic material using preferably a perforated plate, in order to avoid the risk for the composite pipe being burst by the pressurized fluid entering between the inner pipe (1) and the aluminum folio (3) following the joining process inside the said composite pipe by means of preferably the pipe welding applied on said composite pipe.
PCT/TR2006/000020 2005-05-13 2006-05-11 An improvement in the multi-layered composite pipe WO2006121418A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE112006001201T DE112006001201T5 (en) 2005-05-13 2006-05-11 Improvement in a multilayer composite line
ROA200700784A RO123607B1 (en) 2005-05-13 2006-05-11 Method for joining composite pipe to fitting
CN2006800254105A CN101223396B (en) 2005-05-13 2006-05-11 An improvement in the multi-layered composite pipe
EA200702462A EA012978B1 (en) 2005-05-13 2006-05-11 Method of jointing multi-layered pipe with fitting and a heating nozzle
UAA200714031A UA92347C2 (en) 2005-05-13 2006-05-11 Method for connection of multi-layered pipe with fitting and nozzle for heating
ES200750077A ES2346384B2 (en) 2005-05-13 2006-05-11 MULTI-PIPE TUBE JOINT METHOD WITH ACCESSORIES AND HEATING NOZZLE FOR PRACTICE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2005/01801A TR200501801A2 (en) 2005-05-13 2005-05-13 Improvement in multi-layer composite pipe
TR2005/01801 2005-05-13

Publications (1)

Publication Number Publication Date
WO2006121418A1 true WO2006121418A1 (en) 2006-11-16

Family

ID=36808798

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2006/000020 WO2006121418A1 (en) 2005-05-13 2006-05-11 An improvement in the multi-layered composite pipe

Country Status (9)

Country Link
CN (1) CN101223396B (en)
BG (1) BG109995A (en)
DE (1) DE112006001201T5 (en)
EA (1) EA012978B1 (en)
ES (1) ES2346384B2 (en)
RO (1) RO123607B1 (en)
TR (1) TR200501801A2 (en)
UA (1) UA92347C2 (en)
WO (1) WO2006121418A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011096908A1 (en) * 2010-02-03 2011-08-11 Kalde Klima Orta Basinc Fittings Ve Valf Sanayi Anonim Sirketi A screw plate for combining pipe and connection components
RU2499177C1 (en) * 2012-06-07 2013-11-20 Общество С Ограниченной Ответственностью "Альтерпласт" Replaceable heater

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1297293A (en) * 1970-04-11 1972-11-22
EP1122009A1 (en) * 2000-02-07 2001-08-08 Franz Viegener II GmbH & Co. KG. Method and means of removing the metal layer at an end of metal-plastic multilayer pipe in preparation for attaching a compression fitting thereto
US6581982B1 (en) * 1997-11-03 2003-06-24 Novopress Gmbh Pressen Und Presswerkzeuge & Co., Kg Method for connecting a pipe and a pipe coupling, link between a pipe and a pipe coupling, and connector used

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0485651B1 (en) * 1990-11-13 1995-06-21 Gerhard Rosenberg Tool for polyfusion welding of extruded plastic-aluminium compound pipes with fittings or moulded parts
US6293311B1 (en) * 1998-05-22 2001-09-25 Pmd Holdings Corp. Multilayer composite pipe fluid conduit system using multilayer composite pipe and method of making the composite
GB2391599A (en) * 2002-08-06 2004-02-11 Glynwed Pipe Systems Ltd Impovements in multilayered pipes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1297293A (en) * 1970-04-11 1972-11-22
US6581982B1 (en) * 1997-11-03 2003-06-24 Novopress Gmbh Pressen Und Presswerkzeuge & Co., Kg Method for connecting a pipe and a pipe coupling, link between a pipe and a pipe coupling, and connector used
EP1122009A1 (en) * 2000-02-07 2001-08-08 Franz Viegener II GmbH & Co. KG. Method and means of removing the metal layer at an end of metal-plastic multilayer pipe in preparation for attaching a compression fitting thereto

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011096908A1 (en) * 2010-02-03 2011-08-11 Kalde Klima Orta Basinc Fittings Ve Valf Sanayi Anonim Sirketi A screw plate for combining pipe and connection components
EA020723B1 (en) * 2010-02-03 2015-01-30 Калде Клима Орта Басиндж Фиттингс Ве Валф Санайи Аноним Сиркети Method for combining connection components with polypropylene pipe pp-r
RU2499177C1 (en) * 2012-06-07 2013-11-20 Общество С Ограниченной Ответственностью "Альтерпласт" Replaceable heater

Also Published As

Publication number Publication date
RO123607B1 (en) 2014-06-30
TR200501801A2 (en) 2006-12-21
BG109995A (en) 2008-06-30
EA012978B1 (en) 2010-02-26
CN101223396B (en) 2011-12-14
CN101223396A (en) 2008-07-16
EA200702462A1 (en) 2008-04-28
ES2346384A1 (en) 2010-10-14
UA92347C2 (en) 2010-10-25
DE112006001201T5 (en) 2008-02-28
ES2346384B2 (en) 2013-02-05

Similar Documents

Publication Publication Date Title
EP2649356B1 (en) Fluid handling assembly having a multilayered composite pipe employing a mechanical coupling and method of assembling the fluid handling assembly
US6059338A (en) Pipe connection
CA2323555C (en) Multilayer plastic pipe and its use
KR100482386B1 (en) Multi-Layer Fluid Conduit System and Manufacturing Method
PL194169B1 (en) Multilayer composite pipe, fluid conduit system using multilayer composite pipe and method of making the composite pipe
CN103108746B (en) The plastic tube of multilayer, the application of described plastic tube and comprise being welded to connect of described plastic tube
PL1851476T3 (en) Method for joining multi-layered pipe
US9631758B2 (en) Connecting piece for multilayered conduits, method of connecting, and assembly obtained by the method
KR20130103498A (en) A fluid handling assembly having a robust insert
KR100482387B1 (en) Multi-layered fluid conduit and its manufacturing method
WO2006121418A1 (en) An improvement in the multi-layered composite pipe
US20140353964A1 (en) Connecting piece for multilayered conduits, method of connecting, and an assembly obtained by the method
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
TW200744827A (en) Welding method for plastic joint, and junction part structure of plastic joint
ITMI20110162A1 (en) METHOD FOR FORMING A TERMINAL PORTION OF AN INTERNAL COATING SHEATH FOR PIPES
JP3948821B2 (en) Connecting member for pipe fittings
CN218992730U (en) Sealing sleeve for quick end sealing of PE steel wire pipe
JPH08216254A (en) Lining of metal pipe
JP2933251B2 (en) Method for forming gap between inner and outer pipes of refractory two-layer pipe joint
JP2007160761A (en) Lining material of pipeline
JPH07214707A (en) Composite pipe
JP2000104845A (en) Valve with joint part
JPH0536678B2 (en)

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200680025410.5

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application
DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
WWE Wipo information: entry into national phase

Ref document number: 1010999506

Country of ref document: BG

ENP Entry into the national phase

Ref document number: 200750077

Country of ref document: ES

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 2007200700784

Country of ref document: RO

WWE Wipo information: entry into national phase

Ref document number: 1120060012010

Country of ref document: DE

WWE Wipo information: entry into national phase

Ref document number: 9319/DELNP/2007

Country of ref document: IN

WWE Wipo information: entry into national phase

Ref document number: 200702462

Country of ref document: EA

NENP Non-entry into the national phase

Ref country code: RU

RET De translation (de og part 6b)

Ref document number: 112006001201

Country of ref document: DE

Date of ref document: 20080228

Kind code of ref document: P

122 Ep: pct application non-entry in european phase

Ref document number: 06758136

Country of ref document: EP

Kind code of ref document: A1

WWP Wipo information: published in national office

Ref document number: 200750077

Country of ref document: ES

Kind code of ref document: A