SU785050A1 - Method of butt welding of thermoplastic tubes - Google Patents

Method of butt welding of thermoplastic tubes Download PDF

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Publication number
SU785050A1
SU785050A1 SU792724028A SU2724028A SU785050A1 SU 785050 A1 SU785050 A1 SU 785050A1 SU 792724028 A SU792724028 A SU 792724028A SU 2724028 A SU2724028 A SU 2724028A SU 785050 A1 SU785050 A1 SU 785050A1
Authority
SU
USSR - Soviet Union
Prior art keywords
pipes
butt welding
tool
pressing
heated
Prior art date
Application number
SU792724028A
Other languages
Russian (ru)
Inventor
Николай Григорьевич Новиченко
Вальдемар Иванович Обвинцев
Original Assignee
Киевский Филиал Всесоюзного Научно- Исследовательского Института По Монтажным И Специальным Строительным Работам
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Priority to SU792724028A priority Critical patent/SU785050A1/en
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Publication of SU785050A1 publication Critical patent/SU785050A1/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
    • B29C66/70—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
    • 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"
    • B29C65/2007—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" characterised by the type of welding 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
    • 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
    • B29C65/44—Joining a heated non plastics element to a plastics element
    • 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
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/562—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using extra joining elements, i.e. which are not integral with the parts to be joined
    • B29C65/564—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using extra joining elements, i.e. which are not integral with the parts to be joined hidden in the joint, e.g. dowels or Z-pins
    • 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
    • B29C66/05—Particular design of joint configurations
    • B29C66/303—Particular design of joint configurations the joint involving an anchoring effect
    • B29C66/3034—Particular design of joint configurations the joint involving an anchoring effect making use of additional elements, e.g. meshes
    • B29C66/30341—Particular design of joint configurations the joint involving an anchoring effect making use of additional elements, e.g. meshes non-integral with the parts to be joined, e.g. making use of extra 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
    • B29C66/50—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
    • B29C66/50—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

Landscapes

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

Description

Изобретениеотноситс  к области пласт масс. Известен способ сварки труб из термопластов , включающий оплавление торцов труб и их сдавливание 1. Недостаток способа заключаетс  в невысокой прочности сварного соединени . - Наиболее близким решением из известных  вл етс  способ стыковой сварки труб из термопластов, включающий оплавление торцсзв труб профилир жанным нагретым инструменте с образованниу в них впади и порпедующее сдавливание труб 2. Недостатком указанного способа ЯЕЛЯ9ТСЯ низка  прочность сварного шва, обус ловленна  наличием в нем концентраторов напр жений. Целью изобретени   вл етс  повышение прочности сварного шва за счет введени  в него арматуры. Указанна  цепь достигаетс  тем, что в способе стыковой сварки труб из термопластов , включающем оплавление ториею труб профилированным нагретым инстру-, ментом с-образованием в них впадин и последующее сдавливание труб, при оплавлении производ т вдавливание устансжленных на инструменте смещенных относительно друг друга- нагретых металлических втулок на полсюину их длины в торцоЬые поверхности труб с последующим вдавливанием их в образсжанные инструментом;11а зы. Такое осуществление способа обеспечивает снижение до безопасной величины напр жений , приход щихс  на центральную зону шва, за счет воспри ти  части нагрузок металлическими втулками. На фиг. 1-3 представлена схема осущесгелени  способа. Способ сварки труб из термопластов заключаетс  в следующем. На профилированном нагреэатепе 1, имеющем на рабочей поверхности жестко закрепленные трубчатые элементы 2, устанавливают арматуру: тонкостенные металлические втулки 3, смещенные относительно друг друга.The invention relates to the field of mass formation. The known method of welding pipes from thermoplastics, which includes melting the ends of the pipes and squeezing them. The disadvantage of the method lies in the low strength of the welded joint. - The closest solution known is the method of butt welding of pipes from thermoplastics, including the melting of pipe end pipes by means of a profiled heated tool to penetrate into them and the compression of pipes 2. The disadvantage of this method is low strength of the weld due to the presence of concentrators in it. zheniy. The aim of the invention is to increase the strength of the weld by inserting reinforcement into it. This chain is achieved by the fact that in the method of butt welding of pipes from thermoplastic materials, including the flashing of thorium pipes by profiled heated tools, depressions in them and the subsequent squeezing of pipes, when flashing, the metal-displaced metal-displaced relative to each other is pressed. sleeves for half a dozen of their lengths into the end surfaces of the pipes, followed by pressing them into the tools that have been compressed; 11a. Such an implementation of the method provides a reduction to a safe value of the stresses attributable to the central zone of the seam, due to the perception of part of the loads by the metal bushings. FIG. 1-3 shows the scheme for the implementation of the algae method. The method of welding thermoplastic pipes is as follows. On the profiled nagreathepepe 1, which has rigidly fixed tubular elements 2 on the working surface, install the armature: thin-walled metal bushings 3, displaced relative to each other.

Затем -закрепленные соосно трубы 4 подают под давлением осадки к нагревателю 1 и вдавливают нагретые втулки 3 в торцовые поверхности труб на половину их длины. При этом происходит оппавпени торцов труб и выполнение в них впадин 5 трубчатыми элементами 2.Then the pipes 4 fixed coaxially are fed under pressure to the heater 1 and press the heated bushings 3 into the end surfaces of the pipes half of their length. When this occurs, oppaveni pipe ends and the implementation of the depressions in them 5 tubular elements 2.

Трубы развод т и удал ют нагреватель 1 о трубчатыми элементами 2, после чего трубы сдавливают. При этом вдавленные в торцовые поверхности труб втулки 3 вход т в расплавпенныевпадины 5. При охлаждении труб образуетс  прочное сварное соединение. Втулок может быть одна и более.The pipes are diluted and the heater 1 is removed by the tubular elements 2, after which the pipes are squeezed. At the same time, the sleeves 3 pressed into the end surfaces of the pipes enter the melted cavities 5. A strong welded joint is formed when the pipes are cooled. The sleeves may be one or more.

Способ согласно изобретению обеспечивает сни сение до безойасной величины нап(шжений, приход щихс  на дентральйую зону шва, за счет воспри ти  части нагрузок металлическими втулками, а также ограничение втулкой глубины распространени  трещин, возникающих .на поверхности шва, что повышает прочность сварногоThe method according to the invention provides a reduction to the bezasaznogo value nap (shzheniyu falling on the central zone of the seam, due to the perception of the part of the loads with metal sleeves, as well as limiting the depth of propagation of cracks on the seam surface by the sleeve, which increases the strength of the welded

Claims (2)

соединени . Формула изобретени compounds. Invention Formula Способ стыковой сварки труб из термопластов , включающий оплавление торНОВ труб профилированным -нагретым инст-рументом с образованием в них впадин н поспедующее сдавпивание труб, отличающийс  тем, что, с целью повышени  прочнобти сварного шва за счет введени  в него ар татуры, при оплавлении производ т вдавливание установленных на инструменте смещенных относительно друг друга нагретых металлических втулок на половину их длины в торцовые поверхности труб с последующим вдавливанпем ик в образованные инструментом пазы.The method of butt welding of pipes from thermoplastics, including the melting of the pipe ends by a shaped-heated tool with the formation of cavities in them, leading to the production of pipes, characterized in that, in order to increase the strength of the weld by inserting the armature into it, pressing the heated metal bushings offset from each other on the tool half of their length into the end surfaces of the pipes, followed by pressing the grooves into the grooves formed by the tool. Источники информации, прин тые во внимание при экспертизе 1. Авторское свидетельство СССР № 214792, кл. В 29 С 27/06, 27.01.67.Sources of information taken into account during the examination 1. USSR Author's Certificate No. 214792, cl. At 29 C 27/06, 27.01.67. 2.. M.Schwoirz w.. Festiq-l eitserhohunqr von PEast-Stumpfschwe-ip .verbindluiriqren durch profiEierte He-izeEemetrt. - Pgaste ипсЯ Kautschuk, -igr.No-fo.c.Tea-TFO-CnPOToTna),2 .. M.Schwoirz w .. Festiq-l eitserhohunqr von PEast-Stumpfschwe-ip .verbindluiriqren durch profiEierte He-izeEemetrt. - Pgaste ipSa Kautschuk, -igr.No-fo.c.Tea-TFO-CnPOToTna), Фиг.ЗFig.Z
SU792724028A 1979-02-12 1979-02-12 Method of butt welding of thermoplastic tubes SU785050A1 (en)

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SU792724028A SU785050A1 (en) 1979-02-12 1979-02-12 Method of butt welding of thermoplastic tubes

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