Dab tsi yog 3PE Anti-Corrosion Steel Pipe?
3PE anti-corrosion steel yeeb nkab yog cov yeeb nkab steel uas nws cov phab ntsa sab nrauv tiv thaiv los ntawm apeb- txheej polyethylene (3LPE) los tiv thaiv -corrosion txheej txheej. Tsim nyob rau hauv 1980s raws li fusion-bonded epoxy (FBE) thev naus laus zis, 3PE system tau lees paub thoob ntiaj teb raws li kev lag luam tus qauv rau kev tiv thaiv kev tiv thaiv sab nraud. Nws muab cov kev tiv thaiv corrosion zoo tshaj thiab adhesion ntawm FBE epoxy nrog rau kev tiv thaiv kev tiv thaiv tshwj xeeb thiab noo noo ntawm siab - ntom polyethylene (HDPE).
3PE txheej yog siv los ntawm kev ua haujlwm tsis tu ncua, ua haujlwm zoo uas suav nrog kev npaj saum npoo, peb- txheej txheej txheej, kev kho, txias, thiab ntau- theem kev tshuaj xyuas zoo. Lub hauv paus kav rau 3PE txheej muaj xws liseamless steel kav, ERW, LSAW, thiab SSAW, hauv qib carbon steel los ntawm API 5L Gr. B to X80.
Peb - Txheej Txheem
| Txheej | Khoom siv | Thickness | Muaj nuj nqi |
|---|---|---|---|
| Txheej 1 (hauv qab) | Fusion-Bonded Epoxy (FBE) hmoov | Ntau dua lossis sib npaug li 80 µm (ib txwm 100–200 µm) | Chemically bonds rau steel nto; thawj corrosion barrier; zoo heev cathodic disbondment kuj |
| Txheej 2 (Middle) | Copolymer Adhesive (MAH{0}}g-PE) | Ntau dua lossis sib npaug li 150 µm | Chemically "bridges" polar FBE primer rau cov uas tsis yog -polar polyethylene topcoat |
| Txheej 3 (Sab saum toj) | Polyethylene (PE) - MDPE / HDPE | 1.8-4.7 hli | Mechanical tiv thaiv kev puas tsuaj, cuam tshuam, thiab kev ntxhov siab hauv av; impermeable noo noo barrier |
3PE vs 2PE - Qhov txawv yog dab tsi?
Qhov sib txawv tseem ceeb yog tias 3PE muaj ib qho ntxiv epoxy hmoov (FBE) txheej ntawm cov yeeb nkab steel thiab cov nplaum, thaum 2PE tsis muaj FBE primer. FBE txheej muab cov tshuaj tiv thaiv corrosion zoo dua, cov khoom siv kho tshuab zoo dua, thiab muaj zog tiv thaiv cathodic disbondment . 2PE tsuas yog muaj cov nplaum nplaum thiab cov txheej txheej polyethylene.
3PE Anti-Corrosion Txheej ua haujlwm li cas?
3PE tiv thaiv ntau tshaj ib txheej txheej txheej - nws yog ib qho kev tiv thaiv kev tiv thaiv uas peb txheej ua haujlwm ua ke. Kev nkag siab txog cov txheej txheem pab engineers ua txoj cai hu thaum lub sij hawm ob qho tib si xaiv cov khoom siv thiab qhov chaw txais. Hauv cov ntsiab lus yooj yim: FBE tiv thaiv cov hlau los ntawm cov tshuaj corrosion, cov nplaum ua kom cov txheej txheej sib txuas, thiab PE topcoat tiv thaiv tag nrho cov kab ke los ntawm kev puas tsuaj thiab ya raws. Ua ke, peb txheej no tsim 3PE tiv thaiv -corrosion system.
| 3 PE txheej | Khoom siv & Muaj nuj nqi | Kev Tiv Thaiv Tseem Ceeb | Engineering Function |
|---|---|---|---|
| Txheej 1 - FBE Epoxy Primer | Fusion Bonded Epoxy siv rau preheated steel yeeb nkab, feem ntau nyob ib ncig ntawm 200-220 degree, ua ib tug ntom, hla-txuas kev tiv thaiv txheej. | Chemical corrosion barrier:txwv kev nkag mus ntawm dej, chloride ions thiab yaj oxygen; muab kev tiv thaiv rau cathodic disbondment thiab ntau cov kua qaub, alkalis thiab ntsev. | Muab thawj daim ntawv cog lus rau steel substrate thiab tsim cov corrosion-resistant foundation ntawm 3PE system. |
| Txheej 2 - Copolymer Adhesive | Feem ntau amaleic-anhydride-grafted polyethylene (MAH-g-PE) txheej uas khi FBE primer rau PE txheej txheej. | Interlayer sib txuas:chemically bonds nrog FBE thaum lub cev cuam tshuam nrog PE, txo qhov kev pheej hmoo ntawm delamination. | Tuav cov txheej txheem kev ncaj ncees ntawm peb - txheej txheej thaum cov yeeb nkab ntsib thermal, mechanical lossis ib puag ncig kev ntxhov siab. |
| Txheej 3 - Polyethylene (PE) Topcoat | Ib txheej txheej polyethylene tuab uas muab kev tiv thaiv kev tiv thaiv thiab kev tiv thaiv kev ya raws ntxiv. | Kev tiv thaiv lub cev:resists cuam tshuam, khawb, abrasion, av siab thiab noo noo nkag thaum lub sij hawm thauj mus los, installation thiab faus. | Tiv thaiv sab hauv los tiv thaiv- cov khaubncaws sab nraud povtseg los ntawm kev puas tsuaj thiab pab tswj cov txheej txheem kev ncaj ncees thoob plaws hauv cov kav dej. |
Three Layers Working Together: 1+1+1>3
Peb txheej tsim ib qho kev tiv thaiv tag nrho: tshuaj tiv thaiv corrosion + cov qauv adhesion + kev tiv thaiv lub cev. FBE ib leeg ua tau zoo heev tiv thaiv corrosion tab sis muaj kev tiv thaiv me me; PE ib leeg yog cov tawv tawv tab sis ua rau cov hlau tsis zoo. 3PE ua ke cov kev ua tau zoo ntawm ob qho tib si thiab tshem tawm lawv qhov tsis muaj zog.
Txheem & Specifications
3PE tiv thaiv- cov txheej txheem corrosion yog tsim raws li cov qauv thoob ntiaj teb nruj. Nco ntsoov tias DIN 30670 tau hloov kho thaum Lub Ib Hlis 2024: tam sim no tau tshaj tawm raws li DIN 30670-1:2024, muab faib ua Ntu 1 (extruded coatings, npog 3LPE) thiab Ntu 2 (sintered / nplaim-tshuaj coatings). Kab lus no siv cov qauv siv tshiab kawg, tsis yog "DIN 30670-1991" qub.
Txheej Txheem Txheej Txheem - Hloov kho rau xyoo 2024
| Txuj | Scope | Hloov tshiab tseem ceeb (2024) |
|---|---|---|
| ISO 21809-1: 2018 | Ntiaj teb no - faus / subsea pipelines rau roj av & natural gas industries | Qhia meej txog cov nroj tsuag- siv peb sab nraud- txheej PE thiab PP txheej |
| DIN 30670-1: 2024 | Lub teb chaws Yelemees / Europe - Hoobkas- siv cov txheej txheem extruded | TSHIAB:Muab faib ua ntu 1 (extruded) & Ntu 2 (sintered / nplaim taws- txau); hloov tshiab txoj kev xeem thiab tev lub zog yuav tsum tau |
| CAN/CSA Z245.21 | North America | Polyolefin txheej compatibility |
| NFA 49-710 / A49-711 | Fabkis | Peb- txheej polyethylene txheej |
| GB/T 23257 | Tuam Tshoj | Polyethylene los tiv thaiv -corrosion txheej rau faus steel kav |
| SY/T 0413 | Tuam Tshoj | Cov txheej txheem txheej txheem rau polyethylene los tiv thaiv -corrosion txheej |
DIN 30670-1: 2024 - Kev hloov pauv tseem ceeb
Txheej hom:Hom N (tsim kub -20℃rau +60 degree) thiab Hom S (tsim kub -40℃rau +80 degree)
Tag nrho Thickness:thaj tsam li ntawm 1.8 hli mus rau 3.7 hli, muab faib ua ib txwm (n) thiab txhawb (v) qib
Cathodic Disbondment Test:28 hnub ntawm 60℃(Type N) lossis 80℃(Type S), 1.38 V
Peel Strength (20 degree):45 N / cm (Hom N) vs 60 N / cm (Hom S)
Txiav rov qab:yam tsawg kawg nkaus 80 hli liab qab steel cheeb tsam ntawm cov yeeb nkab kawg rau kev vuam
ISO 21809-1: 2018 - Cov ntsiab lus tseem ceeb
Qhia txog cov nroj tsuag-thov peb sab nraud- txheej polyolefin txheej rau welded thiab seamless steel kav
Siv rau pipeline tsheb thauj mus los hauv kev lag luam roj av thiab natural gas
Cov kav dej coated rau tus qauv no yog tsim rau kev tiv thaiv ntxiv los ntawm kev tiv thaiv cathodic
Txheej Thickness los ntawm Yeeb Nkab Diameter (ib DIN 30670-1: 2024)
| Pipe Diameter (DN) | Qib Qib (n) – mm | Reinforced Qib (v) – mm |
|---|---|---|
| DN Tsawg dua lossis sib npaug rau 100 | 1.8 | 2.5 |
| 100 < DN Tsawg dua lossis sib npaug rau 250 | 2.0 | 2.7 |
| 250 < DN Tsawg dua lossis sib npaug rau 500 | 2.2 | 2.9 |
| 500 < DN Tsawg dua lossis sib npaug rau 800 | 2.5 | 3.2 |
| DN> 800 | 3.0 | 3.7 |
Base Pipe Specifications
| Parameter | Ntau yam |
|---|---|
| Cov qauv | API 5L (PSL1 / PSL2), ASTM A53, ASTM A106, GB / T 9711 |
| Qib Steel | Gr. B, X42, X46, X52, X60, X65, X70, X80 |
| Sab nraud Diameter (OD) | 21mm-3,200 hli |
| Phab ntsa Thickness (WT) | 2.5mm-50mm |
| Ntev | 5.8 m, 6 m, 12 m; SRL, DRL, lossis raws li cov neeg siv khoom xav tau |
| Hom yeeb nkab | Seamless (SMLS), ERW, LSAW, SSAW |
| Xaus Xaus | Plain xaus nrog yam tsawg kawg nkaus 80 mm cutback (liab liab qab rau vuam) |
Tsis paub meej tias txheej txheem txheej txheem lossis hom twg siv rau koj qhov project?ISO 21809-1: 2018 thiab DIN 30670{10}}1: 2024 sib txawv ntawm cov rooj tuab, cov qauv ntsuas, thiab kev ua haujlwm kub (N: -20 txog +60 degree; S: -40 txog +80} degree). Xa koj qhov kev khiav hauj lwm kub, qhov chaw faus neeg, thiab qhov project qhov chaw - peb yuav qhia koj cov xwm txheej rau tus qauv zoo, txheej txheej, thiab qib, tsis pub dawb.
Nug rau Coating Specification Check →
Kev tsim khoom
3PE manufacturing txheej txheem yog anruam, systematic workflowuas yuav tsum tau tswj nruj ntawm txhua theem. Kev ua tsis tau zoo ntawm txhua kauj ruam - tshwj xeeb tshaj yog kev npaj nto - tsis tuaj yeem them rov qab rau tom qab.
Kev Tswj Xyuas Zoo & Kev Xeem
Txhua qhov ntau lawm tau dhau los soj ntsuam kev tswj xyuas zoo kom ua tau raws li qhov project specifications thiab thoob ntiaj teb cov qauv:
| Cov khoom soj ntsuam | Txoj Kev Xeem | Kev lees txais |
|---|---|---|
| Txheej Thickness | Magnetic thickness ntsuas | Raws li DIN 30670-1: 2024 / ISO 21809-1 |
| Nyiaj so koobtsheej (Pinhole) Detection | High-Kev ntsuas hluav taws xob hluav taws xob (25 kV) | Tsis muaj pinholes los yog tsis xws luag |
| Adhesion (Peel Strength) | Rub- tawm kev xeem | Ntau dua lossis sib npaug li 45 N / cm (Hom N) / Ntau dua lossis sib npaug li 60 N / cm (Hom S) ntawm 20 degree |
| Catholic Disbondment | 28 hnub, 60℃(N) lossis 80℃(S), 1.38 V | Tsawg dua los yog sib npaug rau qhov ntsuas kev sib cais |
| Impact Resistance | Impact test ntawm -20 degree | Tsis muaj cracking los yog disbondment |
| Indentation Resistance | Indentation test | Raws li tus qauv xav tau |
| Lim ntawm Break | Tensile xeem | Raws li tus qauv xav tau |
| Tshwj xeeb hluav taws xob Resistance | Kev ntsuas hluav taws xob tiv thaiv | Raws li tus qauv xav tau |
| UV Resistance | UV raug kuaj | Raws li tus qauv xav tau |
Daim ntawv thov
3PE tiv thaiv- cov kav dej xeb hlau tau siv dav hauv ntau qhov kev lag luam:
| Daim ntawv thov | Kev siv yam |
|---|---|
| Roj & Roj Kev Lag Luam | Ntev -cov roj av thiab cov roj nkev xa mus rau qhov deb; refined khoom pipelines; kev sib sau ua ke |
| Nroog Infrastructure | Cov dej num hauv nroog; lub nroog gas faib systems; cua sov muab cov kav dej |
| Tshuaj & Petrochemical | Chemical cog piping; corrosive media thauj; dej phwj kho cov kab tawm |
| Lub zog tiam | Cov kav dej xa mus rau cov chaw tsim hluav taws xob; cov kab hluav taws xob |
| Kev lag luam tej yaam num | Piling tej yaam num; slurry thauj; hluav taws tiv thaiv kav dej |
Cov ntaub ntawv tseem ceeb: Central Asia Long Distance Natural Gas Transmission Pipeline; Tuam Tshoj-Kazakhstan Crude Roj Pipeline Project (Phase II) - 3PE reinforced kauv steel yeeb nkab.
Yuav ua li cas xaiv txoj cai 3PE Coated Yeeb Nkab
Ua kom koj qhov project mus rau txoj cai 3PE Coated Yeeb Nkab.Kev xaiv yog peb - kauj ruam saw: koj cov kev pabcuam → txoj cai hauv paus yeeb nkab → txheej txheej txheej txheem. Qhia rau peb txog koj qhov kev khiav hauj lwm siab thiab kub, nruab nrab (nrog, roj crude, dej, qaub kev pab cuam), yeeb nkab txoj kab uas hla, thiab kom muaj nuj nqis - peb engineers yuav phim koj qhov project mus rau lub hauv paus yeeb nkab (seamless, ERW, LSAW, SSAW) thiab txheej spec, thiab paub meej tias nws tiv thaiv ISO 21809-1: 2018 los yog DIN 302070-.
| Qhov project | Qib | Kev txiav txim siab |
|---|---|---|
| Tsawg-kev xa dej siab | API 5L Gr. B | Tus nqi- zoo; txheej txheem txheej txaus |
| Nruab nrab - siab faib roj | API 5L X42 / X52 | Sib npaug ntawm lub zog thiab kev tiv thaiv corrosion |
| Siab - roj / roj kis tau tus mob | API 5L X60 / X65 / X70 | Lub zog siab dua + tuab txheej rau kev tiv thaiv txhua yam |
| Kev pabcuam qaub (H₂S/CO₂) | API 5L PSL2 (X52–X65) | PSL2 xav tau rau kev pabcuam qaub; txheej kev ncaj ncees tseem ceeb |
| Loj - kab kab kab | API 5L X70 / X80 | LSAW / SSAW puag yeeb nkab; Max txheej thickness |
| Me - txoj kab uas hla siab - siab | API 5L X52 / X60 | Seamless puag yeeb nkab pom zoo |
| Marine / subsea pipelines | API 5L X65 / X70 | Maximum tiv thaiv corrosion + cuam tshuam tsis kam |
| Qhov xwm txheej | Standards los yog Specifications |
|---|---|
| Txheej Txheem | ISO 21809-1: 2018 lossis DIN 30670-1: 2024 |
| Txheej hom | Hom N (-20℃rau +60 degree) lossis Hom S (-40℃rau +80 degree) |
| Txheej Qib | Normal (n) vs Reinforced (v) |
| Base Pipe Standard | API 5L PSL1 / PSL2, ASTM A53, thiab lwm yam. |
| Qib Steel | Gr. B, X42, X52, X60, X65, X70, X80 |
Ntim & Kev thauj mus los
Kev ntim khoom kom zoo, kev thauj mus los, thiab kev khaws cia yog qhov tseem ceeb los tiv thaiv 3PE txheej los ntawm kev puas tsuaj ua ntej kev teeb tsa. Kev ntim khoom suav nrog lub kaus mom yas ntawm ob qho kawg, cov ntaub qhwv tsis muaj dej rau cov khoom thauj hauv hiav txwv, cov hlua hlau nrog cov nylon pluaj, ob lub cim rau ib pob, thiab xaiv ntoo crates lossis pallets raws li kev thov. Kev tuav yuav tsum tau nylon slings nkaus xwb - hlau ropes thiab hlau hooks yog txwv tsis pub - nrog roj hmab pads ntawm hooks thiab yeeb nkab nto, tsis txhob poob los yog cuam tshuam, thiab ntxiv kev saib xyuas hauv qab no -10 degree . Kev thauj mus los xav tau cushioning ntawm cov kav dej thiab lub txaj tsheb thauj khoom thiab nruab nrab ntawm cov yeeb nkab txheej, dav nylon pluaj rau kev ruaj ntseg, thiab qhov siab tshaj plaws ntawm ob txheej hauv kev thauj mus los. Kev khaws cia yuav tsum tiaj tus, ntws hauv av nrog cov kav dej tau tsa los ntawm kev txhawb nqa tsawg kawg 200mm saum av, qhov siab tshaj plaws ntawm tsib txheej los tiv thaiv PE txheej txias-ntws nyob rau hauv siab, txhawb txhua 2-3 meters nrog cushioning ntawm cov khaubncaws sab nraud povtseg, thiab tarpaulin npog rau sab nraum zoov cia tshaj ib xyoos. Thaum tau txais, tshuaj xyuas cov txheej txheem kev puas tsuaj; Kev puas tsuaj me me nrog cov hlau tsis raug tuaj yeem kho tau raws li tus txheej txheem, thaum raug cov hlau ntau tshaj 10cm² yuav tsum tau kho kev tshaj lij.
Xav tau 3PE coated kav nrog kev ntim khoom? Tiv tauj peb nrog koj qhov loj me, txheej spec, thiab cov khoom xa tuaj - peb yuav xyuas kom meej tias koj daim ntawv xaj tuaj txog ntawm qhov chaw npaj rau kev teeb tsa.
Tau txais koj cov yeeb nkab pom zoo →
FAQ
Dab tsi yog 3PE tiv thaiv -corrosion steel yeeb nkab?
3PE anti-corrosion steel yeeb nkab yog cov yeeb nkab steel nrog peb- txheej polyethylene txheej siv rau nws sab nrauv, muaj FBE primer, txheej nplaum, thiab polyethylene topcoat uas ua ke muab kev tiv thaiv corrosion zoo dua thiab ua haujlwm ntev.
Dab tsi yog qhov txawv ntawm 3PE thiab 2PE coated yeeb nkab?
3PE muaj ib qho ntxiv epoxy hmoov (FBE) txheej ntawm cov hlau nto thiab cov nplaum, muab kev tiv thaiv corrosion zoo tshaj thiab kev tiv thaiv cathodic disbondment, thaum 2PE tsuas yog cov nplaum thiab cov txheej txheem polyethylene.
Dab tsi yog qhov txawv ntawm 3PE thiab FBE txheej?
FBE yog ib qho - txheej epoxy txheej (50–500 µm), thaum 3PE yog peb - txheej txheej (FBE + nplaum + polyethylene, 1.8–4.7 mm tag nrho) uas muaj kev tiv thaiv zoo tshaj plaws thiab cuam tshuam.
Cov qauv twg siv rau 3PE coated steel yeeb nkab?
Cov qauv thoob ntiaj teb tseem ceeb yog ISO 21809-1: 2018 thiab DIN 30670-1: 2024 (tsawg kawg 2024 tsab), nrog rau cov qauv hauv cheeb tsam ntxiv nrog rau CAN / CSA Z245.21, NFA 49-710, GB / T 23257, thiab SY/T 0413.
Dab tsi yog qhov kev pab cuam lub neej ntawm 3PE coated steel yeeb nkab?
Nyob rau hauv ib txwm faus tej yam kev mob, 3PE coated steel kav muaj kev pab cuam lub neej ntawm 30 mus rau 50 xyoo.
Cov qib steel dab tsi tuaj yeem ua 3PE coated?
3PE txheej tuaj yeem siv rau qib API 5L suav nrog Gr. B, X42, X46, X52, X60, X65, X70, X80, as Well as ASTM A106 thiab lwm qib carbon steel.
Hom yeeb nkab twg tuaj yeem ua 3PE coated?
Seamless (SMLS), ERW, LSAW, thiab SSAW kav tuaj yeem ua tau 3PE coated.
Dab tsi yog qhov kub thiab txias rau 3PE coated yeeb nkab?
DIN 30670-1: 2024 txhais ob hom: Hom N (-20℃rau +60 degree) thiab Hom S (-40℃rau +80℃). Txheem 3PE txheej tsis haum siab tshaj 80 degree.
