Tianjin Brisk Metalwork Co., Ltd. yog ib qho ntawm cov ua lag luam thiab cov neeg muag khoom ntawm 3pe coated erw round steel yeeb nkab rau cov kav dej tiv thaiv corrosion hauv Suav teb. Peb muaj lub ntiaj teb- cov cuab yeej tsim khoom thiab muaj peev xwm tsim tau zoo. Thov koj xav tias dawb mus yuav bulk check 3pe coated erw round steel yeeb nkab rau pipeline corrosion tiv thaiv los ntawm peb lub hoobkas.
Tianjin Brisk Steel yog ib qho ntawm 3PE Coated ERW Round Steel Yeeb Nkab rau Pipeline Corrosion Protection hauv Suav teb. Peb cov khoom raug xa tawm mus rau Middle East, Southeast Asia, Europe, New Zealand, thiab lwm thaj chaw.Yog tias koj xav paub ntau ntxiv txog peb cov khoom, thov hu rau peb thiab xa koj daim ntawv yuav khoom.
3PE txheej yog dab tsi?
3PE sawv cev rau peb- txheej polyethylene, xa mus rau peb cov txheej txheem sib txawv ntawm cov yeeb nkab steel, txhua qhov ua haujlwm sib txawv:
- Txheej 1 - Fusion Bonded Epoxy (FBE):Siv ncaj qha mus rau qhov ntxuav, preheated steel nto, txheej no muab cov thawj corrosion barrier thiab muaj zog adhesion rau liab qab hlau. FBE yog chemically bonded rau cov hlau es tsis yog mechanically thov, uas yog dab tsi muab 3PE systems lawv muaj zog tiv thaiv cathodic disbondment (txheej lifting deb ntawm cov yeeb nkab nyob rau hauv cathodic tiv thaiv tam sim no).
- Txheej 2 - Copolymer Adhesive:Ib txheej khi uas khi cov epoxy primer rau txheej txheej polyethylene. Yog tias tsis muaj txheej nruab nrab no, polyethylene ib leeg yuav tsis ua raws li cov epoxy, vim tias ob cov ntaub ntawv muaj cov qauv tshuaj sib txawv heev.
- Txheej 3 - Extruded Polyethylene (PE):Cov txheej txheem tiv thaiv txheej txheej sab nrauv, siv los ntawm extrusion thaum cov yeeb nkab tseem sov los ntawm cov txheej txheem ua ntej. Cov txheej no muab cov kev tiv thaiv tseem ceeb tiv thaiv kev cuam tshuam, kev puas tsuaj, thiab kev ntxhov siab hauv av thaum thauj, teeb tsa, thiab faus.
Ua ke, peb txheej ua ke muaj zog steel adhesion (los ntawm epoxy) nrog cov tawv tawv tiv thaiv (los ntawm polyethylene) - kev sib xyaw ua ke tsis yog cov khoom ua tiav zoo ntawm nws tus kheej.
Vim li cas Pipeline Projects Specifications 3PE Over Other Coatings
Kev ua tau zoo nyob rau hauv cathodic tiv thaiv systems.Buried pipelines are almost always paired with a cathodic protection (CP) system, which passes a low-level electrical current through the pipeline to suppress corrosion at any point where the coating has failed. Qee cov coatings degrade los yog disbond nyob rau hauv ntev - lub sij hawm CP raug tam sim no;FBE-raws li cov tshuab zoo li 3PE tshwj xeeb muaj nuj nqis rau kev tawm tsam qhov kev tsis sib haum xeeb no, uas ua rau cov txheej txheem tsis zoo thiab ua haujlwm zoo rau CP system lub neej ua haujlwm.
Mechanical toughness rau trenching thiab backfill.Cov yeeb nkab coated tsuas yog FBE lossis txheej nyias epoxy yog qhov yooj yim rau gouging thiab cuam tshuam kev puas tsuaj thaum lub sij hawm trenching, qis dua -in, thiab backfilling - ib lub pob zeb ntse nyob rau hauv kev sib cuag nrog cov yeeb nkab nyob rau hauv backfill siab tuaj yeem cuam tshuam cov txheej nyias. Lub extruded PE txheej txheej hauv 3PE tshuab ntxiv qhov cuam tshuam loj heev thiab kev puas tsuaj tshwj xeeb kom muaj sia nyob rau theem ntawm kev teeb tsa.
Ntev - lub sij hawm av thiab noo noo tsis kam.Polyethylene muaj qhov nqus dej tsawg heev thiab muaj zog tshuaj tiv thaiv rau feem ntau cov av, uas txhais tau hais tias txheej txheej sab nrauv txuas ntxiv thaiv cov dej noo nyob rau ntau xyoo ntawm kev faus, thaum lub epoxy txheej sab hauv tswj adhesion thiab corrosion kuj ntawm steel nto.
Kev khiav hauj lwm kub ntau yam.Cov txheej txheem 3PE ua tau zoo nyob thoob plaws qhov kub thiab txias ntau yam ntawm cov kev pabcuam faus, txawm hais tias siab heev - cov kab kub (qee qhov kev siv roj xa mus) tuaj yeem hu rau 3PP (peb- txheej polypropylene) es tsis txhob, txij li PP zam cov kev pabcuam kub dua li PE.
Yuav ua li cas 3PE txheej yog siv rau ERW yeeb nkab
Lub hauv paus ERW puag ncig cov yeeb nkab yog thawj zaug txhaj tshuaj - blasted mus rau qhov chaw huv thiab roughness profile, txij li txheej txheej adhesion nyob ntawm qhov kev npaj nto - tsis txaus blasting yog ib qho ntawm feem ntau ua rau ua ntej txheej txheej tsis ua hauj lwm nyob rau hauv lub tshav pob. Cov yeeb nkab yog tom qab ntawd preheated rau qhov kub thiab txias uas yuav tsum tau ua kom zoo epoxy curing, electrostatically sprayed nrog FBE hmoov, tam sim ntawd los ntawm cov copolymer nplaum, thiab ces qhwv los yog extruded nrog txheej polyethylene txheej thaum cov yeeb nkab nto tseem kub txaus rau kev sib khi ntawm cov khaubncaws sab nraud povtseg. Cov yeeb nkab coated yog txias, tshuaj xyuas - feem ntau suav nrog cov nyiaj so koobtsheej (pinhole) nrhiav pom los ntawm siab -voltage spark testing - thiab cov yeeb nkab kawg yog sab laug liab qab rau ib tug luv luv ntev kom tso cai rau lub teb girth welding, nrog ib tug cais teb sib koom txheej thov tom qab welding los tiv thaiv thaj tsam weld.
Standards thiab Specifications
API RP 5L2 / NACE SP0394 NAS- hais txog kev siv txheej txheej thiab kev sim cathodic disbondment hauv North American pipeline project.
Txheej txheej tuab rau 3PE tshuab muaj li ntawm 2.5 hli mus rau 3.7 hli tag nrho (tag nrho peb txheej ua ke), nrog rau cov chav kawm tuab tuab khi rau cov yeeb nkab txoj kab uas hla thiab qhov project tau teev cov kev pab cuam tej yam kev mob - txoj kab uas hla loj dua cov yeeb nkab feem ntau nqa cov txheej hnyav dua li cov kav dej me me.
Cov lus nug nquag nug (FAQ)
Q: Qhov txawv ntawm 3PE thiab 2LPE txheej yog dab tsi?
A: 2LPE (ob- txheej polyethylene) siv cov nplaum nplaum ncaj qha rau polyethylene yam tsis muaj txheej txheej epoxy primer cais, thaum 3PE ntxiv FBE txheej hauv qab tshwj xeeb rau cov hlau nplaum zoo dua thiab zoo dua cathodic disbondment resistance. 3PE yog tam sim no qhov dav dav tshaj qhov kev teev tseg rau hauv cov kav dej, thiab cov kav dej xa mus rau qee qhov kev siv hauv cheeb tsam. hom.
Q: Puas yog 3PE coated yeeb nkab puas tseem xav tau kev tiv thaiv cathodic?
A: Yog. Txheej thiab kev tiv thaiv cathodic ua haujlwm ua ke, tsis yog lwm txoj hauv kev - cov txheej yuav txo qhov chaw ntawm cov av tiv thaiv, thaum cathodic tiv thaiv tiv thaiv corrosion ntawm txhua qhov chaw uas txheej txheej muaj qhov tsis xws luag, raug puas tsuaj, lossis muaj hnub nyoog dhau ntawm cov raj xa dej ua haujlwm. Kev cia siab rau txheej ib leeg yam tsis muaj CP tsis yog cov txheej txheem kev tiv thaiv kev tiv thaiv cov kav dej.
Q: Cov ntaub ntawv dab tsi uas kuv yuav tsum muab thaum thov kev tsocai rau 3PE coated yeeb nkab?
A: Cov ntsiab lus tseem ceeb suav nrog cov yeeb nkab txoj kab uas hla thiab phab ntsa tuab, lub hauv paus yeeb nkab qauv / qib, txheej txheem txheej txheem thiab cov tuab tuab, tag nrho cov kev txiav txim ntev, seb cov ntaub ntawv cathodic disbondment yuav tsum tau ua, thiab txhua qhov project - tshwj xeeb teb sib koom txheej txheej txheej zeb txheej yuav tsum tau sib xws nrog - muab cov pem hauv ntej kom tsis txhob rov qab los - thiab - quoting.
Q: Puas yog 3PE txheej haum rau siab - cov kab kev pabcuam kub?
A: Cov txheej txheem 3PE (polyethylene-raws li) cov txheej txheem muaj cov txheej txheem siab tshaj plaws uas tau teev tseg los ntawm cov txheej txheem polyethylene. Rau siab dua - qhov kub thiab txias kev pab cuam - qee cov roj kav dej thiab qee yam kev siv hauv kev lag luam - 3PP (peb- txheej polypropylene) txheej yog siv los hloov, vim polypropylene tiv taus qhov kub thiab txias ntau dua li polyethylene.
Cim npe nrov: Tuam Tshoj 3pe coated erw round steel yeeb nkab rau pipeline corrosion tiv thaiv, Tuam Tshoj 3pe coated erw round steel yeeb nkab rau pipeline corrosion tiv thaiv manufacturers, lwm tus neeg, Hoobkas
