SU592608A1 - Способ контактной стыковой сварки труб из термопластичного материала - Google Patents

Способ контактной стыковой сварки труб из термопластичного материала

Info

Publication number
SU592608A1
SU592608A1 SU762343649A SU2343649A SU592608A1 SU 592608 A1 SU592608 A1 SU 592608A1 SU 762343649 A SU762343649 A SU 762343649A SU 2343649 A SU2343649 A SU 2343649A SU 592608 A1 SU592608 A1 SU 592608A1
Authority
SU
USSR - Soviet Union
Prior art keywords
thermoplastic material
butt welding
tubes made
resistance butt
pipes
Prior art date
Application number
SU762343649A
Other languages
English (en)
Inventor
Юрий Владимирович Ханкин
Original Assignee
Предприятие П/Я Р-6476
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 Предприятие П/Я Р-6476 filed Critical Предприятие П/Я Р-6476
Priority to SU762343649A priority Critical patent/SU592608A1/ru
Application granted granted Critical
Publication of SU592608A1 publication Critical patent/SU592608A1/ru

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
    • 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
    • B29C66/03—After-treatments in the joint area
    • B29C66/034—Thermal after-treatments
    • 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
    • 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
    • B29C66/114—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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/326—Shaping the burr, e.g. by the joining tool
    • B29C66/3262—Shaping the burr, e.g. by the joining tool as after-treatment, e.g. by a separate tool
    • 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
    • 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
    • B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • 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
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
    • B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

1
Изобретение бтнбситс  к области производства труб из термопластичного материала, S частности, с использованием контактной стыжовой сварки.
Известен -способ контактной стыковой сваржи труб нз термопластичного материала, при жотором трубы нагревают до пластического (СОСТОЯНИЯ 1. Недостатком этого способа  вл етс  отсутствие операции сдавливани , что отрицательно сказываетс  на качестве свариого соединени .
Известен способ контактной стыковой сварки труб из термопластичного материала, при котором трубы нагревают, сдавливают с образованием валика оплавленного материала и охлаждают 2. При этом возможно образо;вание микротрещин на поверхности сварного 1соединени .
Целью изобретени   вл етс  повышение качества сварного соединени .
Согласно изобретению после сдавливани  производ т дополнительный нагрев зоны сварного соединени  до в зко-текучего состо ни  и последующее ее обжатие.
Предлагаемый способ позвол ет устранить образовавщиес  на поверхности сварного соединени  микротрещины.
Способ согласно изобретению заключаетс  следующем: свариваемые трубы из термопластичного материала нагревают до температуры сварки, сдавливают, после чего производ т дополнительный поверхностный нагрев зоны сварного соединени  до в зко-текучего состо ни  и обжимают эту зону с последующим охлаждением известным способом.
Пример. Торцы полипропиленовых труб диаметром 75 мм и толщиной стенки 4 мм
привод т в контакт с поверхностью работающего электронагревател , имеющего температуру 240 ±10° С, и оплавл ют на глубину 2 мм в течение 30-40 с. После удалени  нагревател  торцы быстро, в течение не билее 1 с, сближают и сдавливают с усилием 1,5 кг/см. Затем место сварного соединени  обматывают тонкой пленкой (толщина 50 мкм) фторопласта-4 с нат гом пор дка 1-2 кгс дл  обеспечени  эффекта обжати . С помощью струи гор чего воздуха (или другого источника тепла) производ т дополнительный поверхностный нагрев материала до оплавлени  на глубину 300-500 мкм. Пленка фторопласта-4 , сокраща сь в размерах, производит
уплотнение и обжатие поверхностного сло . Дл  удобства в варианте способа производ т удаление грата перед проведением дополнительного нагрева. Нагрев при необходимости можно провести и на больщую глубину. Охлаждение осуществл ют обычным способом. S Формула H3o6peteHHfl Способ контактной стыковой сварки труб из термопластичного материала, при котором трубы нагревают, сдавливают с образованием . валика оплавленного материала и охлаждают, отличающийс  тем, что, с целью повыщени  качества сварного соединени , после сдавливани  производ т дополнительный на4 грев зоны сварного соединени  до в зко-текучего состо ни  и последующее ее обжатие. Источники информации, прин тые во внимание при экспертизе 1. Авторское свидетельство № 184600, кл. В 29С 27/06, 1963. 2. Патент Франции № 175779, кл. В 29С 27/02, опублик. 1972.
SU762343649A 1976-04-02 1976-04-02 Способ контактной стыковой сварки труб из термопластичного материала SU592608A1 (ru)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU762343649A SU592608A1 (ru) 1976-04-02 1976-04-02 Способ контактной стыковой сварки труб из термопластичного материала

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU762343649A SU592608A1 (ru) 1976-04-02 1976-04-02 Способ контактной стыковой сварки труб из термопластичного материала

Publications (1)

Publication Number Publication Date
SU592608A1 true SU592608A1 (ru) 1978-02-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU762343649A SU592608A1 (ru) 1976-04-02 1976-04-02 Способ контактной стыковой сварки труб из термопластичного материала

Country Status (1)

Country Link
SU (1) SU592608A1 (ru)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4981541A (en) * 1986-07-14 1991-01-01 British Gas Corporation Method for joining polyolefin pipes by fusion
EP2383105A3 (en) * 2003-06-13 2012-03-28 Underground Solutions Technologies Group, Inc. Fusion process for conduit
US8569436B2 (en) 2003-06-13 2013-10-29 Underground Solutions Technologies Group, Inc. Polyvinyl chloride formulations

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4981541A (en) * 1986-07-14 1991-01-01 British Gas Corporation Method for joining polyolefin pipes by fusion
EP2383105A3 (en) * 2003-06-13 2012-03-28 Underground Solutions Technologies Group, Inc. Fusion process for conduit
US8569436B2 (en) 2003-06-13 2013-10-29 Underground Solutions Technologies Group, Inc. Polyvinyl chloride formulations
US8796407B2 (en) 2003-06-13 2014-08-05 Underground Solutions Technologies Group, Inc. Polyvinyl chloride formulations
US8906188B2 (en) 2003-06-13 2014-12-09 Underground Solutions Technologies Group, Inc. Fusion process for conduit
US9023263B2 (en) 2003-06-13 2015-05-05 Underground Solutions Technologies Group, Inc. Fusion process for conduit

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