Txheej txheem cej luam
SY/T 0413-2002yog Suav tus txheej txheem kev tshaj lij muaj npe"Technical Standard for Fusion Bonded Epoxy Txheej ntawm Hlau Yeeb Nkab."
Muab Lub Cev:Nws tau tshaj tawm los ntawm National Economic thiab Trade Commission ntawm Tuam Tshoj.
Sector:Qhov "SY/T" ua ntej qhia tias nws yog tus qauv pom zoo (T) rau Petroleum thiab Natural Gas Industry (SY).
Lub hom phiaj:Cov qauv no qhia txog cov kev xav tau ntawm cov ntaub ntawv, daim ntawv thov, kev tshuaj xyuas, kev sim, kev tuav, thiab kev khaws cia ntawm fusion -cov txheej txheem epoxy tau siv rau sab nraud rau cov kav hlau siv rau cov kav dej sab nrauv thiab sab nrauv.
Nws yog Suav sib npaug ntawm dav lees paub thoob ntiaj teb cov qauv zoo liISO 21809-2thiabCAN/CSA-Z245.20.
Cov Lus Qhia Tseem Ceeb ntawm SY/T 0413-2002
Tus txheej txheem yog qhov dav thiab npog tag nrho cov txheej txheem los ntawm kev npaj saum npoo mus rau qhov kev tshuaj ntsuam zaum kawg.
1. Steel Pipe Substrate
Cov yeeb nkab yuav tsum ua raws li nws cov khoom siv thiab cov qauv tsim ua ntej txheej txheej.
Txhua yam tsis xws luag ntawm cov yeeb nkab nto (xws li welds, pits, laminations) yuav tsum tau kho raws li cov yeeb nkab specification ua ntej txheej txheej txheej pib.
2. Kev npaj nto
Qhov no yog ib qho tseem ceeb kauj ruam los xyuas kom meej txheej adhesion.
Ntxuav:Cov yeeb nkab saum npoo yuav tsum tsis muaj roj, roj, av, thiab lwm yam kab mob.
Abrasive Blasting:Cov yeeb nkab yuav tsum tau tawg - ntxuav kom ua tiav qhov ze ntawm - cov hlau dawb huv, sib xws rauIb 2.5raws li cov qauv tsim nyog.
Anchor Profile:Qhov saum npoo yuav tsum muaj cov qauv thauj tog rau nkoj (roughness), feem ntau ntawm50 thiab 100 micrometers (2 mus rau 4 mils). Qhov profile no yog qhov tseem ceeb rau kev sib txuas ntawm cov epoxy hmoov.
3. Cov ntaub ntawv txheej (Epoxy hmoov)
FBE hmoov yuav tsum yog lub thermosetting, cua sov- kho tau epoxy resin.
Cov hmoov yuav tsum tau kuaj thiab ntawv pov thawj kom ua tau raws li tus qauv yuav tsum tau ua. Cov khoom tseem ceeb muaj xws li:
Gelation Sijhawm
Particle Loj Distribution
Cov ntsiab lus noo noo
Cia ruaj khov
4. Daim ntawv thov txheej
Ua ntej- cua sov:Cov yeeb nkab uas tau ntxuav yog rhuab rau hauv ib qho induction los yog lub qhov cub rhaub kom txog qhov kub thiab txias, uas yog qhov tseem ceeb rau cov hmoov kom yaj, ntws, thiab kho kom zoo. Qhov ntsuas kub yog feem ntau nruab nrab ntawm230℃thiab 350 degree.
Daim ntawv thov:Cov hmoov epoxy yog electrostatically sprayed mus rau lub rhaub, rotating yeeb nkab.
Kho:Daim ntawv thov txheej kho raws li cov yeeb nkab txias, tsim ib qho nyuaj, txuas ntxiv, thiab ua raws li zaj duab xis.
5. Txheej Thickness
SY/T 0413-2002 qhia qhov tsawg kawg nkaus thiab nominal thickness rau FBE txheej. Ib qho kev xav tau yog:
Nominal Thickness: Ntau dua lossis sib npaug li 400 µm(kwv yees . 16 mils).
Yam tsawg kawg nkaus Thickness ntawm txhua qhov chaw: Ntau dua lossis sib npaug li 350 µm(kwv yees . 14 mils).
6. Kev tshuaj xyuas thiab kuaj
Tus txheej txheem tswj hwm kev ua tau zoo los ntawm ob qho tib si hauv - cov txheej txheem kuaj xyuas thiab cov khoom kuaj zaum kawg.
A. Tsis yog-Kev kuaj kev puas tsuaj:
Nyiaj so koobtsheej (Fault) Detection:100% ntawm cov coated nto yog tshuaj xyuas siv lub siab -voltage so detector kom pom cov pinholes los yog discontinuities. Kev soj ntsuam voltage yog precisely calibrated raws li txheej thickness.
B. Kev Ntsuam Xyuas Kev Ua Phem (ntawm daim coupons xeem lossis cov kav dej ua piv txwv):
Cathodic Disbondment Test:Ntsuas cov txheej tiv thaiv rau kev tsis sib haum xeeb thaum raug lub peev xwm cathodic, simulating pipeline cathodic tiv thaiv tej yam kev mob. Lub vojvoog disbonded tom qab lub sijhawm teev tseg (piv txwv li, 28 lossis 48 hnub) yuav tsum tsis pub tshaj qhov txwv (piv txwv li, 8 hli).
Adhesion (Peel) Test:Ib qho kev xeem zoo uas cov txheej txheem hla - txiav thiab siv daim kab xev thiab rub tawm. Tus nqi ntawm cov txheej txheem tshem tawm yog ntsuas.
Impact Resistance:Ntsuas cov txheej txheej muaj peev xwm tiv thaiv kev puas tsuaj los ntawm qhov hnyav poob.
Flexibility / Khoov Test:Cov yeeb nkab coated los yog lub phaj yog khoov rau ib txoj kab uas hla los xyuas seb puas tawg lossis tawg.
Sib piv nrog Lwm Cov Qauv
| Feature | SY/T 0413-2002 | ISO 21809-2 | CAN/CSA-Z245.20 |
|---|---|---|---|
| Keeb kwm | Tuam Tshoj (Petroleum Industry) | Thoob ntiaj teb | Canada |
| Common Thickness | Ntau dua lossis sib npaug li 400 µm (Nominal) | Nws txawv ntawm chav kawm (xws li 400, 500, 600, 700 µm) | Nws txawv ntawm chav kawm (piv txwv li, 300, 400, 500 µm) |
| xwm txheej | Superseded(saib hauv qab no) | Tam sim no, thoob ntiaj teb lees paub | Tam sim no, dav siv nyob rau hauv North America |
| Scope | Sab nrauv FBE txheej rau cov kav dej | Sab nrauv FBE txheej rau cov kav dej | Sab nrauv FBE txheej rau cov kav dej |
Lus Cim Tseem Ceeb: SY/T 0413-2002 Tau Txais Kev Pabcuam
SY/T 0413-2002 yog tus qauv qub thiab tau hloov pauv.
Tam sim no Standard: SY/T 0315-2013- "Standard of Fusion Bonded Epoxy Txheej rau Hlau Yeeb Nkab"
Yog vim li cas hloov tshiab:Kev hloov kho xyoo 2013 suav nrog kev txhim kho thev naus laus zis, ua kom zoo dua cov qauv kev sim, thiab ua kom zoo dua nrog cov qauv thoob ntiaj teb zoo li ISO 21809. Nws feem ntau muaj cov cai nruj dua, tshwj xeeb tshaj yog rau kev ua haujlwm cathodic disbondment.
Cov ntsiab lus
ThaumSY/T 0413-2002yog lub hauv paus txheej txheem rau FBE txheej hauv Suav roj thiab roj kev lag luam, nws yog ib qho tseem ceeb kom paub tiasSY/T 0315-2013yog tam sim no, active standard. Rau ib txoj haujlwm tshiab, kev yuav khoom, lossis kev tshuaj xyuas, koj yuav tsum xa mus rau qhov tseeb version,SY/T 0315-2013.
Yog tias koj ua haujlwm nrog ib qhov project uas tau ua tiav raws li SY/T 0413-2002, cov ntaub ntawv no yuav pab koj nkag siab txog nws cov kev xav tau, tab sis rau cov ntawv thov tam sim no, ib txwm siv SY/T 0315-2013.
