PL418931A1 - Method for joining pipes internally coated with a plastic lining, preferably made from polyethylene - Google Patents

Method for joining pipes internally coated with a plastic lining, preferably made from polyethylene

Info

Publication number
PL418931A1
PL418931A1 PL418931A PL41893116A PL418931A1 PL 418931 A1 PL418931 A1 PL 418931A1 PL 418931 A PL418931 A PL 418931A PL 41893116 A PL41893116 A PL 41893116A PL 418931 A1 PL418931 A1 PL 418931A1
Authority
PL
Poland
Prior art keywords
welding
plastic
coating
internally coated
polyethylene
Prior art date
Application number
PL418931A
Other languages
Polish (pl)
Other versions
PL230193B1 (en
Inventor
Elżbieta Polak
Leszek Rejdych
Jan Uroda
Maciej Ciupka
Original Assignee
Zakład Robót Górniczych Górrem Spółka Z Ograniczoną Odpowiedzialnością Spółka Komandytowa
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 Zakład Robót Górniczych Górrem Spółka Z Ograniczoną Odpowiedzialnością Spółka Komandytowa filed Critical Zakład Robót Górniczych Górrem Spółka Z Ograniczoną Odpowiedzialnością Spółka Komandytowa
Priority to PL418931A priority Critical patent/PL230193B1/en
Publication of PL418931A1 publication Critical patent/PL418931A1/en
Publication of PL230193B1 publication Critical patent/PL230193B1/en

Links

Landscapes

  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

Wynalazek dotyczy sposobu łączenia rur wewnętrznie powlekanych powłoką z tworzywa, zwłaszcza z polietylenu, wykorzystywanego przy budowie rurociągów przenoszących ciecze agresywne chemicznie. Sposób według wynalazku polega na tym, że przed spawaniem obejmy (8) na płaszczach łączonych rur (2a, 2b) na obwodzie każdej krawędzi (8a, 8b) trasuje się zasadniczo równe odcinki obwodowe, po czym po sczepieniu spoinami wykonuje się spawanie odcinków obwodowych usytuowanych naprzemianlegle na obwodzie obejmy (8) z równoczesnym utrzymywaniem temperatury płaszcza rury (2a, 2b) i/lub powłoki (3a, 3b) z tworzywa w sąsiedztwie miejsca spawania poniżej temperatury mięknięcia powłoki (3a, 3b) z tworzywa. Korzystnie wnętrze spawanych rur (2a, 2b) schładza się, przykładowo rozprężanym dwutlenkiem węgla, względnie czas wykonywania spawania pojedynczego odcinka obwodowego reguluje się w zależności od temperatury mierzonej w sąsiedztwie nakładanej spoiny.The invention relates to a method of connecting pipes internally coated with a plastic coating, in particular polyethylene, used in the construction of pipelines carrying chemically aggressive liquids. The method according to the invention consists in the fact that before welding the clamp (8) on the shells of the connected pipes (2a, 2b) around the periphery of each edge (8a, 8b), essentially even circumferential sections are routed, after which welding of the circumferential sections is carried out after welding. alternately on the perimeter of the clamp (8) while maintaining the temperature of the pipe shell (2a, 2b) and / or the coating (3a, 3b) of plastic in the vicinity of the welding place below the softening temperature of the coating (3a, 3b) of plastic. Preferably, the inside of the welded pipes (2a, 2b) is cooled, for example by expanding carbon dioxide, or the welding time of a single circumferential section is controlled depending on the temperature measured in the vicinity of the weld to be applied.

PL418931A 2016-09-30 2016-09-30 Method for joining pipes internally coated with a plastic lining, preferably made from polyethylene PL230193B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL418931A PL230193B1 (en) 2016-09-30 2016-09-30 Method for joining pipes internally coated with a plastic lining, preferably made from polyethylene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL418931A PL230193B1 (en) 2016-09-30 2016-09-30 Method for joining pipes internally coated with a plastic lining, preferably made from polyethylene

Publications (2)

Publication Number Publication Date
PL418931A1 true PL418931A1 (en) 2018-04-09
PL230193B1 PL230193B1 (en) 2018-10-31

Family

ID=61809910

Family Applications (1)

Application Number Title Priority Date Filing Date
PL418931A PL230193B1 (en) 2016-09-30 2016-09-30 Method for joining pipes internally coated with a plastic lining, preferably made from polyethylene

Country Status (1)

Country Link
PL (1) PL230193B1 (en)

Also Published As

Publication number Publication date
PL230193B1 (en) 2018-10-31

Similar Documents

Publication Publication Date Title
EA201790807A1 (en) DEVICE AND SYSTEM FOR ELECTROFUSION WELDING OF POLYETHYLENE PIPELINE
MX2017012045A (en) Lightweight, high flow hose assembly and method of manufacture.
MX2016010925A (en) Friction stir welded pipes.
GB2554866B (en) Methods of joining or repairing lined pipes and associated apparatus
SG11202103110YA (en) Repairing material for liquid leakage, reparing method for liquid leakage, and pipeline
PL418931A1 (en) Method for joining pipes internally coated with a plastic lining, preferably made from polyethylene
WO2018167736A3 (en) Method for lining by electrofusion joints of on-shore pipelines used for conveying fluids, formed by pipes externally lined with polyurethane foam and covered or enveloped with polyethylene sheets, and joint produced by this method
SA521430707B1 (en) Metal pipe, in particular pipe for conveying oil and gas, comprising a metal coating in a transition region
MX2019005416A (en) Extended leg return elbow for use with a steel making furnace and method thereof.
PH12019500016A1 (en) Device for welded joints in pipework
MX2017012450A (en) Method for welding of insulated pipe.
RU2525032C1 (en) Production of steel pipe with inner plastic pipe for bonding by welding
GB2540061A (en) Pressure tank for a water heater in stainless steel, and also a method for manufacture of a pressure tank
EP4043772A4 (en) Ring body, pipe fitting, and method for joining pipes
FR3047060B1 (en) RAPID RACORD FOR THE REMOVABLE JOINING OF PRESSURIZED FLUID PIPES
EP3770475A4 (en) Pipe joint, push ring for pipe joint, method for joining pipes
RU141409U1 (en) DEVICE FOR PROTECTION AGAINST CORROSION OF WELDED JOINT OF PIPES WITH INTERNAL COATING
PL3763980T3 (en) Multilayered pipes, method of producing the same and method of welding two multilayered pipes
RU2010115729A (en) METHOD FOR PROTECTING WELDED JOINT OF PIPES WITH INTERNAL COATING FROM CORROSION
RU2014119966A (en) METHOD FOR PRODUCING BIMETALLIC PUMP AND COMPRESSOR PIPES
RU2018132520A (en) The method for determining sections of gas pipelines susceptible to transverse stress corrosion cracking
CL2020000536A1 (en) A pipe system of pipe sections with pre-assembled insulated welding backing rings and method of making the same.
EP3749506C0 (en) The method for joining or repairing a pipe system
EP4292796A3 (en) Process for modifying and joining oriented pipes
RU159500U1 (en) WELDED PIPES WITH INTERNAL COATING