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SU1737216A1 - Method for joining internally lined pipes - Google Patents

Method for joining internally lined pipes Download PDF

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Publication number
SU1737216A1
SU1737216A1 SU894736691A SU4736691A SU1737216A1 SU 1737216 A1 SU1737216 A1 SU 1737216A1 SU 894736691 A SU894736691 A SU 894736691A SU 4736691 A SU4736691 A SU 4736691A SU 1737216 A1 SU1737216 A1 SU 1737216A1
Authority
SU
USSR - Soviet Union
Prior art keywords
sleeve
pipes
cladding layer
coupling
layer
Prior art date
Application number
SU894736691A
Other languages
Russian (ru)
Inventor
Николай Леонидович Фирсов
Вячеслав Максимович Александров
Александр Юрьевич Полушин
Original Assignee
Уральский Филиал Центрального Научно-Исследовательского Института Материаловедения
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Priority to SU894736691A priority Critical patent/SU1737216A1/en
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Publication of SU1737216A1 publication Critical patent/SU1737216A1/en

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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
    • 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
    • B29C65/3432—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 comprising several wires, e.g. in the form of several independent 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
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
    • B29C65/4835—Heat curing adhesives
    • 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
    • B29C65/72—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by combined operations or combined techniques, e.g. welding and stitching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1282—Stepped joint cross-sections comprising at least one overlap joint-segment
    • B29C66/12821—Stepped joint cross-sections comprising at least one overlap joint-segment comprising at least two overlap joint-segments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1284—Stepped joint cross-sections comprising at least one butt joint-segment
    • B29C66/12841—Stepped joint cross-sections comprising at least one butt joint-segment comprising at least two butt joint-segments
    • 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
    • B29C66/52291—Joining tubular articles involving the use of a socket said socket comprising a stop
    • B29C66/52292—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being internal
    • 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
    • B29C66/52291—Joining tubular articles involving the use of a socket said socket comprising a stop
    • B29C66/52294—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being heated
    • 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
    • B29C66/52295—Joining tubular articles involving the use of a socket said socket comprising reinforcements
    • 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
    • B29C66/52298—Joining tubular articles involving the use of a socket said socket being composed by several 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
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

Сущность изобретени : сваривают облицовочный слой труб. Устанавливают между концами труб переходную втулку и размещают муфту в зоне соединени . Втулку выполн ют из материала облицовочного сло , ее наружную поверхность покрывают плакирующим слоем из материала муфты. Сварку облицовочного сло  производ т совместно с втулкой после ее установки между трубами. Муфту после ее размещени  в зоне соединени  труб склеивают с втулкой через плакирующий слой. Сварку осуществл ют электронагревательными элементами, вмонтированными в муфту и втулку. 1 з п. ф-лы, 1 ил.The essence of the invention: weld the facing layer of pipes. A transition sleeve is installed between the ends of the pipes and a sleeve is placed in the joint zone. The sleeve is made of the material of the facing layer, its outer surface is covered with a cladding layer of coupling material. The facing layer is welded together with the sleeve after it is installed between the pipes. The clutch, after its placement in the joint area of the pipes, is glued to the sleeve through the cladding layer. The welding is carried out by electric heating elements mounted into the sleeve and the sleeve. 1 з п. Ф-лы, 1 Il.

Description

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Изобретение относитс  к способам соединени  труб, точнее к способам соединени  труб посредством кле  с использованием материала, заполн ющего пространство между част ми стыка, и может быть использовано при соединении труб, примен емых преимущественно в химической промышленности дл  транспортировки агрессивной среды с высоким давлением и температурой.The invention relates to methods for connecting pipes, more precisely to methods for connecting pipes by means of glue using a material that fills the space between parts of the joint, and can be used to connect pipes used primarily in the chemical industry to transport corrosive media with high pressure and temperature.

Известен способ соединени  труб с внутренней облицовкой посредством муфты и скрепление ее с концами труб с помощью кле .There is a known method of joining pipes with an inner lining by means of a coupling and fastening it to the ends of pipes with the help of glue.

Известен другой способ соединени  труб с внутренней облицовкой, включающий сварку облицовочного сло  труб, установку между концами труб переходной втулки и размещение муфты в зоне соединени . Муфта в данном случае выполнена из металла, переходна  втулка - из армированного твердеющего материала, а облицовка - из материала типа полиэтилен. Концы облицовки труб сварены между собой.There is another method of connecting pipes with an inner lining, which involves welding the facing layer of pipes, installing an adapter sleeve between the ends of the pipes, and placing the coupling in the joint area. The coupling in this case is made of metal, the transition sleeve is made of reinforced hardening material, and the lining is made of a material of type polyethylene. The ends of the pipe lining are welded together.

Недостатком данного способа  вл етс  то, что он не обеспечивает достаточную надежность соединени  труб.The disadvantage of this method is that it does not provide sufficient reliability of the pipe connection.

Объ сн етс  это отслоением облицовочного сло  от втулки при эксплуатации соединени , особенно при перепадах давлени  в трубах вследствие того, что переходна  втулка и облицовочный слой выполнены из разных материалов, а это при эксплуатации соединени , особенно при перепадах давлени  в трубах, вызывает отслоение от втулки и ее разрыв.This is explained by the separation of the facing layer from the sleeve during connection operation, especially when pressure drops in pipes due to the fact that the transition sleeve and facing layer are made of different materials, and this during connection operation, especially when pressure drops in pipes, causes detachment from the sleeve and its gap.

Цель изобретени  - повышение надежности соединени  путем исключени  отслоени  соедин емых элементов.The purpose of the invention is to increase the reliability of the connection by eliminating the detachment of the connected elements.

Указанна  цель достигаетс  тем, что в известном соединении труб с внутренней облицовкой, включающем сварку облицоVIThis goal is achieved by the fact that in the well-known joint of pipes with inner lining, which includes welding the face

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вечного сло  труб, установку между концами труб переходной втулки и размещение муфты в зоне соединени , переходную втулку выполн ют из материала облицовочного сло , ее наружную поверхность покрывают плакирующим слоем из материала муфты, сварку облицовочного сло  труб производ т совместно с переходной втулкой после ее установки между трубами, а муфту после ее размещени  в зоне соединени  труб склей- вают с переходной втулкой, склейку ее с муфтой могут осуществл ть с помощью электронагревательных элементов, вмонтированных в переходную втулку и муфту.an eternal layer of pipes, installation between the ends of pipes of the transition sleeve, and placement of the coupling in the joint zone, the transition sleeve is made of the material of the facing layer, its outer surface is covered with a cladding layer of the coupling material, welding of the facing layer of the pipes is performed together pipes, and after they are placed in the joint area of the pipe, the coupling is glued to the transition sleeve, and it can be glued to the coupling using electric heating elements mounted into the transitional sleeve and coupling.

На чертеже приведен способ соедине- ни  труб с внутренней облицовкой.The drawing shows the method of joining pipes with lining.

Способ включает установку между концами труб 1 переходной втулки 2, размещение в зоне соединени  муфты 3, а также сварку облицовочного сло  4 труб 1.The method includes installation between the ends of the pipes 1 of the transition sleeve 2, placement in the joint zone of the coupling 3, as well as welding of the facing layer 4 of the pipes 1.

Переходную втулку 2 выполн ют из материала облицовочного сло  4, ее наружную поверхность покрывают плакирующим слоем 5 из материала муфты 3. Сварку облицовочного сло  4 труб 1 производ т совместно с переходной втулкой 2 после ее установки между трубами 1, а муфту 3 после ее размещени  в зоне соединени  труб 1 склеиваютс переходной втулкой 2 через плакирующий слой 5.The transition sleeve 2 is made of the material of the facing layer 4, its outer surface is covered with a cladding layer 5 of the material of the sleeve 3. The facing layer 4 of the pipe 1 is welded together with the transition sleeve 2 after it is installed between the pipes 1, and the sleeve 3 is placed in The connection area of the pipes 1 is glued by the transition sleeve 2 through the cladding layer 5.

Сварку облицовочного сло  4 с переходной втулкой 2 и склейку ее с муфтой 3 можно осуществл ть с помощью электронагревательных элементов, например в виде проволочных спиралей 6, вмонтированных в переходную втулку 2 и муфту 3.The welding of the facing layer 4 with the transition sleeve 2 and its gluing with the coupling 3 can be carried out using electric heating elements, for example, in the form of wire spirals 6 mounted into the transition sleeve 2 and the coupling 3.

Облицовка 4 и переходна  втулка 2 могут быть выполнены, например, из полиэтилена ПЭНП или поликарбоната ПК-1 и т.п. материала.The lining 4 and the transition sleeve 2 can be made, for example, of polyethylene LDPE or polycarbonate PC-1, etc. material.

Муфта 3 может быть выполнена, например , из стали 20 или стали СТ-3, В этом случае плакирующий слой 5 выполн ют из того же материала, например, в виде металлической сетки или пленки, вплавленных в наружную боковую поверхность втулки 2.The clutch 3 can be made, for example, of steel 20 or ST-3 steel. In this case, the cladding layer 5 is made of the same material, for example, in the form of a metal mesh or film, fused into the outer side surface of the sleeve 2.

Если муфта3(итрубы 1) выполнены из углепластика КМУ-4Л, плакирующий слой 5 выполн ют из армирующих волокон этого материала или углеродной ленты (напри- мер, ЛУП-0,2).If coupling 3 (pipes 1) is made of carbon fiber plastic KMU-4L, cladding layer 5 is made of reinforcing fibers of this material or carbon tape (for example, LUP-0.2).

Если муфта 3 и плакирующий слой 5 выполнены из металла, стеклопластика или углепластика, они могут быть склеены клеем К-153.If the coupling 3 and the cladding layer 5 are made of metal, fiberglass or carbon fiber, they can be glued together with K-153 glue.

В случае выполнени  муфты 3 и плакирующего сло  5 из стеклопластика или углепластика они могут быть склеены клеем УП5-207-1.In the case of the clutch 3 and the cladding layer 5 made of fiberglass or carbon fiber, they can be glued with glue UP5-207-1.

Сборку соединени  осуществл ют следующим образом.The assembly of the compound is carried out as follows.

Разогревают внутреннюю поверхность втулки 2 и сопр гаемые с ней концы облицовки 4 труб 1. Устанавливают втулку 2 между концами труб 1 (см. чертеж), перемещают последние навстречу друг другу. В результате происходит сварка втулки 2 с облицовкой 4 труб 1.Heat the inner surface of the sleeve 2 and the ends of the lining of 4 pipes 1 associated with it. Install the sleeve 2 between the ends of the pipes 1 (see the drawing), move the latter towards each other. As a result, the sleeve 2 is welded with the lining of 4 pipes 1.

После этого она наружную боковую поверхность концов труб 1 и плакирующий слой 5 втулки 2, а также на внутреннюю боковую поверхность муфты 3 нанос т клей, устанавливают муфту 3 в зоне стыка (см. чертеж) и производ т разогрев и отверждение клеевого сло  7.After that, it glue the outer side surface of the pipe ends 1 and the cladding layer 5 of the sleeve 2, as well as onto the inner side surface of the coupling 3, install the coupling 3 in the joint area (see the drawing) and heat and cure the adhesive layer 7.

Дл  уменьшени  времени на соединение труб 1 сварку облицовки 4 с втулкой 2, а также склейку муфты 3 с плакирующим слоем 5 втулки 2 и концами труб 1 осуществл ют одновременно путем пропускани  тока по спирали 6. В результате разогрева последних происходит сварка и склейка упом нутых деталей.In order to reduce the time for connecting the pipes 1, the lining 4 is welded with the sleeve 2 and the coupling 3 is glued together with the cladding layer 5 of the sleeve 2 and the ends of the pipes 1 are carried out simultaneously by passing a current along the helix 6. As a result of heating the latter .

Claims (2)

1.Способ соединени  труб с внутренней облицовкой, включающий сварку облицовочного сло  труб, установку между концами труб переходной втулки и размещение муфты в зоне соединени , отличающийс  тем, что, с целью повышени  надежности соединени  путем исключени  отслоени  соедин емых элементов, переходную втулку выполн ют из материала облицовочного сло , ее наружную поверхность покрывают плакирующим слоем из материала муфты, сварку облицовочного сло  труб производ т совместно с переходной втулкой после ее установки между трубами, а муфту после ее размещени  в зоне соединени  труб склеивают с переходной втулкой через плакирующий слой.1. A method of connecting pipes with an inner lining, including welding the facing layer of pipes, installing an adapter sleeve between the pipe ends and placing a coupling in the joint zone, characterized in that, in order to increase the reliability of the joint by eliminating detachment of the elements being connected the material of the cladding layer, its outer surface is covered with a cladding layer of coupling material, welding of the cladding layer of pipes is performed together with the transition sleeve after it is installed between the pipes, and after placing the pipe in the zone of compounds bonded with bushing through the cladding layer. 2.Способ поп. 1,отличающийс  тем, что сварку облицовочного сло  труб с переходной втулкой и склейку ее с муфтой осуществл ют с помощью электронагревательных элементов, вмонтированных в переходную втулку и муфту.2. Method pop. 1, characterized in that the facing layer is welded to the transition sleeve and glued to the sleeve by means of electric heating elements mounted into the transition sleeve and the sleeve.
SU894736691A 1989-09-12 1989-09-12 Method for joining internally lined pipes SU1737216A1 (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5494318A (en) * 1993-04-29 1996-02-27 Butts; Nicholas E. Secondary containment system
US5618065A (en) * 1994-07-21 1997-04-08 Hitachi Metals, Ltd. Electric welding pipe joint having a two layer outer member
US5916468A (en) * 1996-07-08 1999-06-29 Hitachi Metals Ltd. Electrically weldable pipe joint and production method thereof
US6394502B1 (en) * 1998-03-11 2002-05-28 Kungsors Plast Ab Electrofusion coupler
CN103403432A (en) * 2011-02-25 2013-11-20 孔瑟尔普拉斯特公司 Fusion welding socket
AT516006A1 (en) * 2014-07-08 2016-01-15 Jansen Ag Arrangement with at least one composite pipe
CN112610782A (en) * 2020-12-18 2021-04-06 广州市华粤管业有限公司 Full-corrosion-resistant connecting structure for bacteriostatic lining plastic composite steel pipe and construction method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Авторское свидетельство СССР № 966382,кл. F 16 L13/11, 1980. *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5494318A (en) * 1993-04-29 1996-02-27 Butts; Nicholas E. Secondary containment system
US5618065A (en) * 1994-07-21 1997-04-08 Hitachi Metals, Ltd. Electric welding pipe joint having a two layer outer member
US5916468A (en) * 1996-07-08 1999-06-29 Hitachi Metals Ltd. Electrically weldable pipe joint and production method thereof
US6394502B1 (en) * 1998-03-11 2002-05-28 Kungsors Plast Ab Electrofusion coupler
CN103403432A (en) * 2011-02-25 2013-11-20 孔瑟尔普拉斯特公司 Fusion welding socket
AT516006A1 (en) * 2014-07-08 2016-01-15 Jansen Ag Arrangement with at least one composite pipe
CN112610782A (en) * 2020-12-18 2021-04-06 广州市华粤管业有限公司 Full-corrosion-resistant connecting structure for bacteriostatic lining plastic composite steel pipe and construction method thereof

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