Hauv kev siv hauv kev lag luam, tshwj xeeb tshaj yog hauv cov roj thiab roj av, qhov kev ncaj ncees ntawm cov yeeb nkab hlau yog qhov tseem ceeb heev. Ib qho ntawm txoj hauv kev zoo tshaj plaws los xyuas kom meej tias cov yeeb nkab no muaj lub neej ntev thiab ruaj khov yog siv cov txheej txheem fusion bonded epoxy (FBE). Kev nkag siab txog cov qauv txheej txheem FBE yog qhov tseem ceeb rau txhua tus neeg koom nrog kev yuav khoom, kev teeb tsa lossis kev saib xyuas cov yeeb nkab dej hlau thiab cov khoom siv.
Cov txheej txheem FBE feem ntau yog siv rau ntau hom kav hlau, suav nrog SSAW (Spiral Submerged Arc Welded) kav, ERW (Electric Resistance Welded) kav, LSAW (Longitudinal Submerged Arc Welded) kav, cov kav dej tsis sib txuas, thiab ntau yam khoom siv xws li lub luj tshib, tees, thiab reducers. Lub hom phiaj tseem ceeb ntawm cov txheej txheem no yog los muab kev tiv thaiv xeb, uas yog qhov tseem ceeb rau kev tswj hwm kev ncaj ncees ntawm cov kav dej hauv lub sijhawm ntev.
Yog dab tsiFBE txheej?
Txheej FBE yog cov hmoov epoxy thermosetting uas siv rau saum npoo ntawm cov yeeb nkab hlau. Cov txheej txheem thov suav nrog kev ua kom cov yeeb nkab kub rau qhov kub tshwj xeeb thiab tom qab ntawd siv cov hmoov epoxy, uas yaj thiab tsim kev sib txuas zoo nrog saum npoo ntawm cov yeeb nkab hlau. Cov txheej txheem no tsim cov txheej txheem du, ruaj khov thiab tiv taus tshuaj lom neeg uas tuaj yeem tiv taus cov xwm txheej ib puag ncig hnyav.
Qhov tseem ceeb ntawm cov qauv txheej txheem FBE
Kev ua raws li cov qauv txheej txheem FBE yog qhov tseem ceeb rau cov laj thawj hauv qab no:
1. Kev tiv thaiv xeb: Lub luag haujlwm tseem ceeb ntawm FBE txheej yog los tiv thaiv cov hlau los ntawm xeb. Cov qauv cuam tshuam xyuas kom meej tias cov txheej txheem tau siv kom raug thiab ua tau raws li qhov tuab thiab qhov yuav tsum tau ua kom muaj kev tiv thaiv zoo tshaj plaws.
2. Kev Ruaj Ntseg Zoo: Los ntawm kev ua raws li cov qauv uas tau teeb tsa, cov chaw tsim khoom tuaj yeem lav qhov zoo ntawm lawv cov khoom. Qhov no tseem ceeb heev rau cov tuam txhab uas tsim cov kav hlau ntau, piv txwv li, lub tuam txhab uas muaj tag nrho cov cuab tam ntawm 680 lab yuan, cov khoom tsim tawm txhua xyoo ntawm 400,000 tons ntawm cov kav hlau kauv, thiab cov nqi tsim tawm ntawm 1.8 billion yuan.
3. Kev Ua Raws Cai: Ntau lub lag luam raug kev tswj hwm nruj ntawm cov ntaub ntawv thiab cov txheej txheem uas lawv ua haujlwm. Kev ua raws li cov qauv txheej txheem FBE pab cov tuam txhab zam kev teeb meem kev cai lij choj thiab tswj lawv lub koob npe nrov hauv kev lag luam.
4. Siv tau ntev thiab txhim khu kev qha: Kev siv FBE txheej kom raug tuaj yeem ua rau lub neej ua haujlwm ntawm cov kav hlau ntev dua. Qhov kev ntseeg siab no yog qhov tseem ceeb rau cov lag luam uas siv cov kav dej no los thauj dej, roj thiab roj av.
Tus yuam sijCov qauv txheej txheem FBE
Thaum xav txog FBE coatings, nws yog ib qho tseem ceeb kom nkag siab txog cov qauv tseem ceeb rau lawv daim ntawv thov:
- ASTM D638: Tus qauv no piav qhia txog cov khoom tensile ntawm cov yas (suav nrog FBE coatings) kom ntseeg tau tias lawv tuaj yeem tiv taus cov kev ntxhov siab uas ntsib hauv kev siv.
- ASTM D3359: Tus qauv no sim qhov kev nplaum ntawm cov txheej rau lub substrate, uas yog qhov tseem ceeb rau kev ua kom ntseeg tau tias FBE txheej tseem nyob ruaj khov dhau sijhawm.
- AWWA C213: Tus qauv no hais txog cov kev cai rau cov txheej txheem epoxy fusion-bonded rau cov yeeb nkab dej hlau, muab cov lus qhia rau kev siv, kev tshuaj xyuas, thiab kev sim.
xaus lus
Hauv kev xaus lus, kev nkag siab txog cov qauv txheej txheem FBE yog qhov tseem ceeb rau txhua tus neeg koom nrog hauv kev lag luam yeeb nkab hlau. Tsom mus rau kev tiv thaiv xeb, kev lees paub zoo, thiab kev ua raws li txoj cai, cov qauv no ua lub luag haujlwm tseem ceeb hauv kev ua kom lub neej ua haujlwm thiab kev ntseeg siab ntawm cov yeeb nkab hlau thiab cov khoom siv. Cov tuam txhab uas muab qhov tseem ceeb rau kev ua raws li cov qauv no, xws li cov uas muaj peev xwm tsim khoom thiab cov cuab tam muaj zog, tsis tuaj yeem txhim kho cov khoom zoo xwb tab sis kuj txhawb lawv txoj haujlwm hauv kev lag luam sib tw. Raws li qhov kev thov rau cov yeeb nkab hlau ruaj khov thiab txhim khu kev qha txuas ntxiv mus, qhov tseem ceeb ntawm FBE txheej txheem thiab cov qauv rau lawv daim ntawv thov yuav txuas ntxiv mus.
Lub sijhawm tshaj tawm: Lub Rau Hli-11-2025