SU504907A1 - The method of permanent connection of pipes - Google Patents

The method of permanent connection of pipes

Info

Publication number
SU504907A1
SU504907A1 SU1197304A SU1197304A SU504907A1 SU 504907 A1 SU504907 A1 SU 504907A1 SU 1197304 A SU1197304 A SU 1197304A SU 1197304 A SU1197304 A SU 1197304A SU 504907 A1 SU504907 A1 SU 504907A1
Authority
SU
USSR - Soviet Union
Prior art keywords
coupling
pipes
heating
joints
sleeve
Prior art date
Application number
SU1197304A
Other languages
Russian (ru)
Inventor
Владимир Александрович Хаванов
Сергей Николаевич Киселев
Владислав Васильевич Рощин
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 SU1197304A priority Critical patent/SU504907A1/en
Application granted granted Critical
Publication of SU504907A1 publication Critical patent/SU504907A1/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L21/00Joints with sleeve or socket

Landscapes

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

Description

1one

Изобретение относитс  к технологии изготовлени  трубных узлов и трубонроводов и может быть использовано дл  получени  прочно-плотных соединений труб из разнородных или однородных материалов в энергетике , химической промышленности, машиностроении и т. д.The invention relates to the technology of manufacturing pipe assemblies and pipelines and can be used to obtain tightly-dense pipe joints from dissimilar or homogeneous materials in the power industry, chemical industry, mechanical engineering, etc.

Известен способ получени  неразъемного соединени  труб из разнородных материалов путем предварительного нагрева накладываемой на стыки труб муфты, котора  за счет уменьшени  ее размеров в осевом направлении создает усилие, сдавливаюш,ее торцы труб.A known method of obtaining a permanent joint of pipes from dissimilar materials by preheating a coupling which is applied to the pipe joints, which, by reducing its dimensions in the axial direction, creates a force that squeezes its pipe ends.

Однако при таком способе необходимо предварительно нагревать муфту до высоких температур, при которых происходит активное окисление некоторых металлов (например, цирконий, тантал, бериллий и т. д.), из которых изготовлены соедин емые трубы. Кроме того, регулировать усили  ст гивани  торцов труб невозможно.However, with this method, it is necessary to preheat the sleeve to high temperatures, at which active oxidation of some metals occurs (for example, zirconium, tantalum, beryllium, etc.) from which the connected pipes are made. In addition, it is not possible to adjust the force of tightening of the pipe ends.

Целью изобретени   вл етс  повышение плотности и прочности соединени  труб, изготовленных из разнородных материалов, и обеспечение возможности изменени  контактного давлени  в процессе эксплуатации соединени .The aim of the invention is to increase the density and strength of the connection of pipes made of dissimilar materials, and to provide the possibility of changing the contact pressure during operation of the connection.

Достигаетс  это тем, что соединительную муфту подвергают термопластическому деформированию . Дл  этого муфту устанавливают на стыки соединительных труб в холодном состо нии, после чего осуш,ествл ют нагрев отдельных ее участков, например, наложением кольцевых сварных швов с последующим охлаждением. Предлагаемый способ предусматривает возможность восстановлени  нужной величины контактного давлени  вслучае его уменьшени  в процессе эксплуатации работы соединени  путем наложени  дополнительных сварных швов. Нагрев наружной втулки может осуществл тьс  не только наложением сварных швов, но также и другими источниками тепла, даюш,ими резко неравномерное распределение температуры вдоль оси втулки. При неравномерном нагреве возникает  вление автопрессовки, заключаюндеес  в усадке металла в зоне термопластических деформаций.This is achieved by the fact that the coupling is subjected to thermoplastic deformation. For this, the coupling is installed at the joints of the connecting pipes in a cold state, after which it is dried, heating its individual sections, for example, by applying circular welded seams with subsequent cooling. The proposed method provides for the possibility of restoring the desired value of contact pressure in order to reduce it during operation of the joint operation by imposing additional welds. Heating of the outer sleeve can be carried out not only by the overlap of welds, but also by other heat sources, daiush, they have a sharply uneven temperature distribution along the axis of the sleeve. With uneven heating, the phenomenon of auto-pressing occurs, concluding in the shrinkage of the metal in the zone of thermoplastic deformations.

Claims (3)

1. Способ неразъемного соединени  труб путем установки на их стыки соединительной муфты, отличаюш.ийс  тем, что, с целью повышени  плотности и прочности соединени  и обеспечени  возможности изменени  контактного давлени  в процессе эксплуатации соединени , муфту устанавливают на стыки в холодном состо нии, после чего подвергают ее термопластическому деформированию. 3 1. A method of permanently connecting pipes by installing a coupling sleeve at their joints, distinguished by the fact that, in order to increase the density and strength of the joint and ensure that the contact pressure varies during operation of the joint, the sleeve is installed at the joints in a cold state, after which subjected to its thermoplastic deformation. 3 2. Способ по п. 1, отличающийс  тем, что термопластическое деформирование муфты осуществл ют путем нагрева ее отдельных участков с поледующим охлаждением. ,4 2. A method according to claim 1, characterized in that the thermoplastic deformation of the coupling is carried out by heating its individual sections with further cooling. ,four 3. Способ по п. 2, отличающийс  тем, что нагрев муфты осуществл ют наложением кольцевых сварных щвов. 3. A method according to claim 2, characterized in that the heating of the coupling is carried out by the overlapping of circumferential weld gaps.
SU1197304A 1967-11-13 1967-11-13 The method of permanent connection of pipes SU504907A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1197304A SU504907A1 (en) 1967-11-13 1967-11-13 The method of permanent connection of pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1197304A SU504907A1 (en) 1967-11-13 1967-11-13 The method of permanent connection of pipes

Publications (1)

Publication Number Publication Date
SU504907A1 true SU504907A1 (en) 1976-02-28

Family

ID=20441418

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1197304A SU504907A1 (en) 1967-11-13 1967-11-13 The method of permanent connection of pipes

Country Status (1)

Country Link
SU (1) SU504907A1 (en)

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