Phau Ntawv Qhia Kom Tiv Thaiv -Corrosion Technologies Rau LSAW Thiab HFW Steel Pipes: 3LPE, FBE, Thiab Ntau

Cov kav hlau hlau yog cov hlab ntsha ntawm cov txheej txheem niaj hnub no, thauj cov peev txheej tseem ceeb hla ntau qhov deb thiab ntau qhov chaw. Txawm li cas los xij, cov cuab yeej tseem ceeb no tau raug cuam tshuam tas li rau cov ntsiab lus corrosive, ob qho tib si sab nraud (av, dej, tshuaj) thiab sab hauv (kev xa tawm xov xwm). Corrosion tuaj yeem ua rau muaj kev puas tsuaj loj, ua rau muaj kev puas tsuaj ib puag ncig, kev poob nyiaj txiag, thiab kev nyab xeeb. Txhawm rau tiv thaiv qhov kev hem thawj loj heev, tiv thaiv - cov kav dej xeb hlau yog qhov tseem ceeb. Kev ua tau zoo thiab kev ua haujlwm ntev ntawm Longitudinally Submerged Arc Welded (LSAW) thiab High-Frequency Welded (HFW) steel kav, dav siv nyob rau hauv ntau yam lag luam, hnyav heev nyob rau hauv daim ntawv thov ntawm advanced anti-corrosion technologies. Yog li, dab tsi yog qhov tseem ceeb los tiv thaiv - thev naus laus zis rau LSAW thiab HFW steel kav, thiab lawv yuav tiv thaiv cov cuab tam tseem ceeb no li cas? Hebei Huayang Steel Pipe Co., Ltd., uas yog ib lub chaw tsim khoom, muab cov lus qhia dav dav rau kev nkag siab cov ntsiab lus thiab qhov zoo ntawm 3LPE, FBE, thiab lwm yam txheej txheem txheej txheej tseem ceeb.

Kev hem thawj ntawm Corrosion rau Steel Pipelines

Corrosion yog cov txheej txheem electrochemical uas degrades hlau, xa rov qab rau lawv cov ntaub ntawv oxidized ruaj khov dua. Rau cov kav dej steel, hom kev xeb muaj xws li:

•External Corrosion: Ua los ntawm kev sib cuag nrog av, dej, atmospheric oxygen, thiab ntau yam tshuaj. Cov yam ntxwv xws li av tiv taus, pH, cov ntsiab lus noo noo, thiab cov kab mob ua rau cuam tshuam nws tus nqi.

•Internal Corrosion: Ua los ntawm corrosive agents nyob rau hauv lub thauj cov kua, xws li H2S, CO2, dej, thiab oxygen.

•Stress Corrosion Cracking (SCC): Ib daim ntawv nyuaj ntawm corrosion uas tshwm sim nyob rau hauv tej kev nyuaj siab tensile thiab corrosive ib puag ncig.

Yog tias tsis muaj kev tiv thaiv zoo, corrosion tuaj yeem txo qhov kev ua haujlwm ntawm lub raj xa dej, cuam tshuam nws cov qauv kev ncaj ncees, thiab ua rau kom tawg lossis tawg.

Mainstream Anti-Corrosion Txheej Technologies

Niaj hnub no los tiv thaiv-corrosion coatings ua raws li lub cev barrier ntawm steel yeeb nkab nto thiab corrosive ib puag ncig. Kev xaiv cov txheej yog nyob ntawm kev ua haujlwm, ib puag ncig yam, thiab qhov project- cov cai tshwj xeeb.

1. Fusion Bond Epoxy (FBE) Txheej

FBE yog cov thermoset polymer txheej siv los ua cov hmoov qhuav rau cov yeeb nkab steel preheated. Cov hmoov melts thiab tsim ib tug nruam tiv thaiv zaj duab xis uas yog heev resistant rau corrosion.

• Cov txheej txheem thov: Cov yeeb nkab saum npoo yog ntxuav kom huv si (grit blasted rau Sa 2.5 lossis Sa 3), preheated rau qhov kub thiab txias (feem ntau 220-250 degree), thiab tom qab ntawd cov epoxy hmoov yog electrostatically txau rau hauv cov yeeb nkab. Lub tshav kub ua rau cov hmoov yaj, ntws, thiab kho, tsim ib txheej txheej.

• Cov txiaj ntsig zoo: adhesion zoo rau cov hlau, tshuaj lom neeg ua haujlwm siab, zoo cathodic disbondment kuj, siab ua haujlwm kub ntau (txog 110 degree), thiab zoo txhua yam khoom. Nws feem ntau yog siv los ua cov txheej txheem ib leeg lossis ua thawj txheej hauv ntau - txheej txheej.

• Qhov tsis zoo: Kev tiv thaiv UV tsis zoo, cuam tshuam rau kev puas tsuaj thaum tuav thiab teeb tsa yog tias tsis muaj kev tiv thaiv zoo.

2. 3- Txheej Polyethylene (3LPE) Txheej

3LPE txheej yog ntau- txheej txheej txheej muaj peb txheej ua haujlwm, muab kev tiv thaiv zoo tshaj plaws thiab tiv thaiv corrosion.

• Txheej 1 (Primer): Ib txheej nyias ntawm FBE, muab cov adhesion zoo rau cov hlau nto thiab kev tiv thaiv corrosion thawj.

• Txheej 2 (Adhesive): Ib txheej copolymer nplaum, uas khi FBE rau txheej txheej polyethylene.

• Txheej 3 (Top Coat): Ib txheej txheej ntawm siab - ntom polyethylene (HDPE) los yog nruab nrab- ntom polyethylene (MDPE), muab kev tiv thaiv zoo heev, tiv thaiv UV, thiab rwb thaiv tsev zoo heev.

• Cov txiaj ntsig zoo: Kev tiv thaiv zoo tshaj plaws tiv thaiv kev puas tsuaj thiab cuam tshuam, zoo heev cathodic disbondment kuj, zoo tshuaj tiv thaiv, thiab kev pab lub neej ntev. Haum rau ib puag ncig hnyav thiab ua haujlwm hnyav.

• Qhov tsis zoo: Kev ua haujlwm qis tshaj qhov ntsuas kub piv rau FBE (feem ntau txog li 80 degree), ntau txoj kev thov txheej txheem.

3. 3- Txheej Polypropylene (3LPP) Txheej

Zoo ib yam li 3LPE, 3LPP siv polypropylene li txheej txheej, muab kev txhim kho siab - qhov kub thiab txias kev ua haujlwm thiab lub zog txhua yam.

• Txheej Txheej: FBE primer, copolymer nplaum, thiab txheej txheej ntawm polypropylene.

•Qhov zoo: Cov khoom siv zoo tshaj plaws thiab kev ua haujlwm kub ntau dua (txog 140 degree) piv rau 3LPE, ua rau nws zoo tagnrho rau siab -cov kav dej kub.

• Qhov tsis zoo: Tus nqi siab dua 3LPE, hloov tau me ntsis.

4. Coal Tar Enamel (CTE) thiab Asphalt Enamel (AE) Txheej

Cov no yog cov tsoos hnyav- cov dej num txheej, siv kub, muab kev tiv thaiv corrosion zoo thiab txhua yam muaj zog.

•Qhov zoo: Tus nqi - zoo, adhesion zoo, thiab dej tsis kam. Feem ntau muaj zog nrog fiberglass lev.

• Qhov tsis zoo: Ib puag ncig kev txhawj xeeb vim VOC emissions thaum lub sij hawm thov, txo qis kev ua haujlwm kub txwv, thiab muaj kev phom sij rau kev noj qab haus huv thaum tuav.

5. Liquid Epoxy txheej

Cov kua epoxy txheej feem ntau yog siv rau hauv ntau lub tsho tiv no, muab cov tshuaj tiv thaiv zoo heev thiab adhesion zoo.

•Qhov zoo: tuaj yeem siv rau hauv daim teb, zoo rau cov duab nyuaj, thiab tshuaj lom neeg zoo heev.

• Qhov tsis zoo: Yuav tsum tau ua tib zoo npaj qhov chaw, lub sijhawm kho, thiab tuaj yeem raug cuam tshuam rau kev puas tsuaj.

Hebei Huayang: Koj tus khub rau cov kav dej tiv thaiv

Hebei Huayang Steel Pipe Co., Ltd. tshwj xeeb hauv kev tsim khoom siab - zoo LSAW thiab HFW steel kav, thiab peb nkag siab tias kev tiv thaiv corrosion zoo tshaj yog qhov tseem ceeb rau lawv qhov kev ua tau zoo. Peb muab ntau yam kev daws teeb meem los tiv thaiv-corrosion txheej, suav nrog FBE, 3LPE, thiab 3LPP, siv hauv peb lub xeev - ntawm-- cov chaw kos duab nrog kev tswj xyuas nruj.

Peb cov kws tshaj lij ua kom ntseeg tau tias cov txheej txheem txheej txheej xaiv tau zoo sib xws rau koj qhov project tshwj xeeb ib puag ncig thiab kev xav tau ntawm kev ua haujlwm, lav lub neej ntev thiab kev ncaj ncees ntawm koj cov peev txheej. Los ntawm kev npaj ua kom zoo nkauj rau daim ntawv thov thiab kev sim nruj, peb ua kom txhua yam kev tiv thaiv -corrosion steel yeeb nkab los ntawm Huayang muab kev tiv thaiv tsis muaj kev cuam tshuam. Koom tes nrog peb txhawm rau txhim khu kev ntseeg, ntev - cov kav dej kav ntev.

Kev sib piv ntawm MainstreamAnti-Corrosion Coatings rau Steel Pipes

Hauv kev xaus, xaiv qhov tsim nyog los tiv thaiv- thev naus laus zis corrosion yog qhov tseem ceeb rau lub sijhawm ntev - kev ncaj ncees thiab kev nyab xeeb ntawm LSAW thiab HFW steel pipelines. Txawm hais tias nws yog lub zog tiv thaiv kev tiv thaiv ntawm 3LPE, qhov siab - qhov kub thiab txias ntawm 3LPP, lossis cov tshuaj tiv thaiv ntau yam ntawm FBE, txhua txheej txheej txheej muaj qhov zoo sib xws. Hebei Huayang Steel Pipe Co., Ltd. tau cog lus los muab cov kws tshaj lij coated los tiv thaiv - cov kav hlau xeb, kom ntseeg tau tias koj cov cuab yeej cuab tam tseem ceeb raug tiv thaiv los ntawm kev tsis sib haum xeeb ntawm corrosion, xa kev ntseeg siab thiab kev thaj yeeb rau ntau xyoo tom ntej.