Cov kav hlau hlau, tshwj xeeb tshaj yog cov siv nyob rau hauv qhov xav tau ib puag ncig xws li cov kav dej hauv av lossis kev teeb tsa sab nrauv, yuav tsum muaj kev tiv thaiv zoo tiv thaiv corrosion. Peb-Txheej Polyethylene (3LPE) thiab Fusion Bonded Epoxy (FBE) txheej yog ob qho ntawm cov khoom siv dav dav thiab siv tau los tiv thaiv-corrosion systems. Txawm li cas los xij, kev ua tau zoo thiab kev ua neej ntev ntawm cov txheej txheem no yog ncaj qha nyob ntawm kev siv nruj nruj ntawm kev tswj xyuas zoo (QC) kev ntsuas thoob plaws tag nrho cov txheej txheem txheej. Yog li, dab tsi yog qhov tseem ceeb tswj kev ntsuas rau 3LPE thiab FBE coated steel kav, thiab yuav ua li cas cov kev ntsuas no ua kom muaj kev ncaj ncees thiab ntev ntev - tiv thaiv cov txheej txheem tseem ceeb? Hebei Huayang Steel Pipe Co., Ltd., tus kws tshaj lij hauv cov kav hlau coated, qhia txog cov txheej txheem QC tseem ceeb.
Qhov tseem ceeb ntawm Kev Tswj Xyuas Zoo hauv Cov Yeeb Nkab Txheej
Txawm tias cov ntaub ntawv zoo tshaj plaws yuav ua tsis tau yog tias tsis siv kom raug. Kev tsis xws luag hauv daim ntawv thov txheej, xws li cov thickness tsis txaus, tsis zoo adhesion, cov hnub so (pinholes), los yog kev sib kis, tuaj yeem ua rau muaj kev xeb ntxov ntxov, cov kav dej tsis ua haujlwm, thiab qhov cuam tshuam loj rau kev lag luam thiab ib puag ncig. Kev ntsuas QC muaj zog yog li ntawd tsis yog qhov kev coj ua zoo tshaj plaws xwb, tab sis yog qhov tseem ceeb rau:
• Ua kom muaj kev ncaj ncees ntawm cov txheej txheem: Xyuas kom tseeb tias cov txheej txheem ua kom tsis tu ncua, tsis muaj teeb meem -dawb thaiv.
•Guarantee Adhesion: Paub meej tias muaj kev sib raug zoo ntawm cov txheej thiab steel substrate.
• Ua tiav cov Thickness tshwj xeeb: Xyuas kom cov txheej ua tau raws li cov qauv tsim kom muaj kev tiv thaiv zoo.
• Ua raws li Cov Qauv: Ua raws li cov qauv thoob ntiaj teb xws li ISO 21809, NACE, thiab API.
•Extend Service Life: Maximize lub neej ua hauj lwm ntawm cov kav dej.
Kev Tswj Xyuas Qhov Tseem Ceeb rau 3LPE thiab FBE Coated Steel Pipes
Kev tswj kom zoo rau ob qho tib si 3LPE thiab FBE txheej txheej feem ntau ua raws li txoj hauv kev, npog ua ntej- daim ntawv thov, daim ntawv thov, thiab tom qab- daim ntawv thov theem.
1. Ua ntej-Application Quality Control
Cov theem no tsom rau kev npaj cov yeeb nkab saum npoo kom ntseeg tau tias cov txheej txheem zoo adhesion.
• Pipe Surface Inspection: Kev tshuaj xyuas qhov pom ntawm qhov tsis xws luag, laminations, lossis puas. Dimensional checks (OD, phab ntsa thickness).
• Kev Npaj Nto (Blasting):
•Abrasive Quality: Kev txheeb xyuas ntawm abrasive hom, qhov loj me, thiab kev huv.
•Blast Profile (Anchor Pattern): Ntsuas qhov roughness ntawm qhov chaw (xws li, siv daim kab xev replica los yog ib tug profileometer) kom paub tseeb tias nws ua tau raws li cov txheej txheem thauj tog rau nkoj (feem ntau yog 50-100 microns). Qhov profile no yog qhov tseem ceeb rau kev sib txuas ntawm cov tshuab.
• Kev huv huv (White Hlau): Kev tshuaj xyuas kom ntseeg tau tias qhov chaw tawg yog nyob ze ntawm - cov hlau dawb (xws li Sa 2½ lossis Sa 3 raws li ISO 8501-1), tsis muaj xeb, nplai, thiab cov kab mob. Kev tshem tawm plua plav tom qab blasting yog qhov tseem ceeb.
•Preheating (rau FBE): Kev txheeb xyuas qhov kub ntawm cov yeeb nkab ua ntej FBE daim ntawv thov kom muaj kev kho kom zoo. Rau 3LPE, preheating kuj tseem ua kom tshem tawm cov dej noo thiab ua kom pom kev adhesion rau epoxy txheej.
2. Thaum lub sij hawm thov Kev Tswj Xyuas Zoo
Cov theem no saib xyuas cov txheej txheem txheej nws tus kheej kom ntseeg tau tias cov ntawv thov tsis raug.
• Kev Ntsuas Kub: Kev ntsuas kub tsis tu ncua ntawm cov yeeb nkab kub (rau FBE curing thiab 3LPE adhesion) thiab txheej txheej kub.
•Coating Thickness Measurement: Rau 3LPE, ib tug neeg txheej thicknesses (epoxy, nplaum, polyethylene) thiab tag nrho cov thickness yog ntsuas uas tsis yog - txoj kev puas tsuaj (xws li, magnetic induction gauges). Rau FBE, qhuav zaj duab xis thickness (DFT) yog ntsuas.
• Daim Ntawv Thov Tsis Muaj: Kev pov thawj ntawm daim ntawv thov ceev, hmoov / extrusion tus nqi, thiab lwm yam txheej txheem sib txawv los xyuas kom meej qhov sib xws.
• Kev Tshuaj Xyuas Kev Pom Zoo: Kev tshuaj xyuas qhov muag tsis tu ncua kom pom qhov tsis xws luag xws li sags, khiav, hnub so, lossis daim ntawv thov tsis sib xws.
3. Tshaj tawm - Daim Ntawv Thov Kev Tswj Xyuas Zoo
Qhov no yog theem kawg thiab tshaj plaws, xyuas qhov kev ncaj ncees thiab kev ua tau zoo ntawm cov ntawv thov txheej.
• Kev Tshawb Nrhiav Hnub So (Pinhole Testing): Ib qho kev ntsuas tseem ceeb uas siv lub siab -voltage hnub so detector los soj ntsuam tag nrho cov coated nto rau pinholes, tawg, los yog lwm yam discontinuities uas yuav ua rau cov hlau corrosion. Txhua hnub so uas pom yuav tsum tau kho.
• Kev Xeem Adhesion:
•Cut-Back Test (Knife Adhesion Test): Ib qho kev sim ua kom puas tsuaj uas siv riam los sim tev cov txheej txheem ntawm cov yeeb nkab. Lub zog yuav tsum tau thiab qhov xwm ntawm tev (cohesive vs. adhesive tsis ua hauj lwm) qhia adhesion zoo.
•Cathodic Disbondment (CD) Test: Ib lub sij hawm ntev - kuaj kev puas tsuaj (piv txwv li, 28 hnub) uas simulates cathodic tiv thaiv tej yam kev mob los ntsuam xyuas cov txheej tsis kam rau disbondment nyob rau hauv ib tug corrosive ib puag ncig. Qhov no yog ib qho tseem ceeb qhia txog kev ua tau zoo.
•Impact Resistance Test: Ntsuam xyuas cov txheej txheej muaj peev xwm tiv taus kev puas tsuaj thaum tuav, kev thauj mus los, thiab kev teeb tsa.
•Bend Test: Ntsuam xyuas cov txheej txheem yooj yim thiab tsis kam tawg thaum cov yeeb nkab khoov.
•Hardness Test: Ntsuas cov txheej tiv thaiv indentation.
• Kev Tshuaj Xyuas Kev Pom Zoo: Kev tshuaj xyuas qhov muag kawg kawg rau txhua qhov chaw tsis zoo, kev puas tsuaj, lossis kho.
•Cut-Rov Dimensions: Kev txheeb xyuas ntawm qhov kev txiav txiav- rov qab ntev ntawm cov yeeb nkab kawg rau vuam.
Hebei Huayang: Kev cog lus rau Coated Pipe Excellence
Ntawm Hebei Huayang Steel Pipe Co., Ltd., peb lub xeev - ntawm -- cov txheej txheem kos duab tau nruab nrog QC ntsuas qib siab thiab ua haujlwm los ntawm cov kws tshaj lij. Peb siv ntau- theem kev tswj xyuas zoo rau tag nrho 3LPE thiab FBE coated steel kav, ua kom txhua cov yeeb nkab xa tau raws li cov qauv thoob ntiaj teb siab tshaj plaws thiab cov neeg siv khoom tshwj xeeb.
Peb txoj kev mob siab rau QC nruj, los ntawm kev npaj nto mus rau qhov kawg kev tshuaj ntsuam xyuas, lav tias peb cov kav dej coated muab superior, ntev - tiv thaiv corrosion, ua rau muaj kev nyab xeeb thiab kav ntev ntawm koj cov phiaj xwm tseem ceeb. Koom tes nrog Hebei Huayang rau coated steel kav koj tuaj yeem ntseeg tau.
Kev Tswj Xyuas Kev Ntsuas Zoo rau 3LPE thiab FBE Coated Pipes
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QC theem |
Cov Kev Ntsuas Tseem Ceeb / Kev Tshuaj Xyuas |
Lub hom phiaj |
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Ua ntej -Application |
Nto huv huv (Sa 2½/3), Blast Profile, Preheating Temp. |
Ua kom pom qhov zoo tshaj plaws rau txheej adhesion. |
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Thaum thov |
Txheej Thickness (DFT), Kev Ntsuam Xyuas Kev Pom Kev, Kev Ntsuas Kub. |
Txheeb xyuas qhov tsis raug ntawm daim ntawv thov thiab kev ncaj ncees thawj zaug. |
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Tshaj tawm -Application |
Soj ntsuam xyuas, Adhesion (Txiav-Rov qab, CD), cuam tshuam, khoov, Hardness. |
Paub meej tias txheej txheej ruaj khov, adhesion, mechanical zog, thiab tsis xws luag -dawb raws li txoj cai. |
Hauv kev xaus, qhov ua tau zoo ntawm 3LPE thiab FBE los tiv thaiv- cov txheej txheem corrosion ntawm cov kav hlau yog qhov tseem ceeb ntawm kev tswj hwm kev tswj hwm zoo thiab nruj. Los ntawm kev saib xyuas txhua theem-los ntawm kev npaj cov yeeb nkab thawj zaug thiab cov ntawv txheej txheej mus rau qhov kawg ntawm kev xeem- cov chaw tsim khoom xws li Hebei Huayang Steel Pipe Co., Ltd. xyuas kom meej tias lawv cov kav dej coated xa cov lus cog tseg ntev - tiv thaiv corrosion, tiv thaiv cov txheej txheem tseem ceeb thiab pab txhawb kev lag luam thoob ntiaj teb.
