Nyob rau hauv lub ntiaj teb no ntawm pipeline kev tsim kho thiab txij nkawm, kom ntseeg tau tias kev ncaj ncees thiab ntev ntawm cov kav hlau steel yog qhov tseem ceeb tshaj plaws. Ib txoj hauv kev zoo tshaj plaws kom ua tiav qhov no yog los ntawm kev siv fusion bonded epoxy (FBE) txheej. Cov coatings no tsis tsuas yog muab lub zog tiv thaiv corrosion tab sis kuj txhim kho tag nrho cov kav dej kav ntev. Kev nkag siab qhov tseem ceeb ntawm FBE txheej txheej txheem yog qhov tseem ceeb rau cov tuam txhab, engineers, thiab cov thawj tswj xyuas qhov project ib yam nkaus.
FBE txheejyog tsim tshwj xeeb los tiv thaiv cov kav hlau thiab fittings los ntawm qhov hnyav ntawm ib puag ncig yam, nrog rau cov dej noo, tshuaj, thiab kub hloov pauv. Cov txheej txheem tswj hwm cov txheej txheem no, xws li cov uas qhia txog cov kev cai rau lub Hoobkas siv peb-txheej extruded polyethylene txheej thiab ib lossis ntau txheej ntawm sintered polyethylene txheej, ua lub luag haujlwm tseem ceeb hauv kev ua kom cov txheej txheem ua tau zoo nyob rau lub sijhawm ntev. Cov qauv no xyuas kom meej tias cov txheej txheem sib npaug thiab ua raws li cov hlau nto, uas yog qhov tseem ceeb rau kev tiv thaiv corrosion.
Hauv plawv ntawm qhov kev sib tham no yog ib lub tuam txhab nyob hauv Cangzhou, Hebei Xeev, uas tau ua tus thawj coj hauv kev tsim cov yeeb nkab zoo steel thiab fittings txij li nws tau tsim nyob rau hauv 1993. Nrog rau tag nrho cheeb tsam ntawm 350,000 square meters, tag nrho cov cuab tam ntawm RMB 680 lab thiab 680 cov kws tshaj lij, lub tuam txhab tau cog lus rau kev tsim cov khoom lag luam zoo. Lawv cov kev txawj ntse hauv kev siv FBE coatings qhia lawv txoj kev cog lus rau kev ncaj ncees thiab kev ua haujlwm ntev.
Qhov tseem ceeb ntawm kev ua raws liFBE txheej txheem txheej txheemtsis tuaj yeem overstated. Thaum cov qauv no tau ua raws, cov txheej txheem yuav muab cov txheej txheem ruaj khov uas yuav tiv taus qhov nruj ntawm ntau qhov chaw. Qhov no yog qhov tseem ceeb tshwj xeeb tshaj yog rau cov kav dej uas tau faus los yog hauv dej, qhov twg cov kav dej tau raug cov dej tsis tu ncua thiab muaj peev xwm corrosive. Los ntawm kev siv lub Hoobkas txheej txheej uas ua tau raws li cov qauv tsim, cov tuam txhab tuaj yeem txo qhov kev pheej hmoo ntawm cov kav dej tsis ua haujlwm, yog li zam kev kho tus nqi thiab kev phom sij ib puag ncig.
Tsis tas li ntawd, qhov ntev ntawm cov kav dej yog hais txog ntau tshaj li kev tiv thaiv corrosion; nws kuj tseem hais txog kev ua kom cov txheej txheem tuaj yeem tiv taus cov kev ntxhov siab uas tsim los ntawm kev teeb tsa thiab kev ua haujlwm. Cov txheej txheem rau FBE coatings coj mus rau hauv tus account yam xws li adhesion, yoog raws, thiab kev cuam tshuam kev cuam tshuam, tag nrho cov uas ua rau tag nrho cov kev ua tau zoo ntawm cov kav dej. Los ntawm kev nqis peev hauv cov txheej txheem zoo uas ua tau raws li cov qauv no, cov tuam txhab tuaj yeem txuas ntxiv lub neej ntawm lawv cov kav dej, thaum kawg txo cov nqi tu thiab txhim kho kev ua haujlwm.
Hauv cov ntsiab lus, qhov tseem ceeb ntawm FBE txheej txheej txheem hauv kev ua kom cov kav dej ruaj khov thiab kev ua neej ntev tsis tuaj yeem raug saib xyuas. Cov tuam txhab xws li Cangzhou yog tus thawj ntawm kev lag luam, muab cov khoom tseem ceeb uas ua tau raws li cov qauv no. Los ntawm kev saib xyuas qhov ua tau zoo thiab kev ua raws cai, lawv pab tiv thaiv cov vaj tse uas tseem ceeb rau peb kev lag luam thiab ib puag ncig. Raws li qhov kev thov rau cov kav dej ruaj khov thiab ruaj khov txuas ntxiv, FBE txheej yuav txuas ntxiv ua lub luag haujlwm tseem ceeb hauv kev ua tiav cov hom phiaj no. Kev nqis peev hauv cov txheej txheem zoo niaj hnub no yuav them nyiaj rau yav tom ntej, kom ntseeg tau tias peb cov kav dej muaj kev nyab xeeb thiab ua haujlwm tau zoo rau xyoo tom ntej.
Post lub sij hawm: Feb-26-2025