Hauv cov teb kev lag luam xws li tshuaj lom neeg, hlau, thiab kev khawb av, cov kav dej yog cov kav dej tseem ceeb rau kev thauj khoom, thiab cov khoom siv thauj khoom feem ntau nqa "lub zog tua" xws li kev hnav, xeb, thiab kub siab. Cov kav dej ib txwm muaj feem yuav laus thiab xau, uas tsis yog tsuas yog cuam tshuam rau kev ua haujlwm ntawm kev tsim khoom xwb tab sis kuj ua rau muaj kev phom sij rau kev nyab xeeb zais cia.Silicon carbide pipeline liningyog ib qho cuab yeej tiv thaiv kev lag luam uas tsim los daws qhov teeb meem no, thiab tau dhau los ua qhov kev daws teeb meem zoo tshaj plaws rau kev xeb muaj zog thiab kev hnav khaub ncaws siab vim nws ua tau zoo heev.
Cov kav dej silicon carbide, hauv cov lus yooj yim, yog ib txheej tiv thaiv ntawm cov khoom siv silicon carbide sib xyaw rau ntawm phab ntsa sab hauv ntawm cov kav dej, uas muab "armor" muaj zog rau ntawm cov kav dej. Tsis zoo li cov hlau lossis cov yas ib txwm muaj, silicon carbide nws tus kheej yog cov khoom siv ceramic kev lag luam zoo tshaj plaws nrog kev hloov pauv tau rau cov xwm txheej ua haujlwm hnyav, uas muab cov kav dej silicon carbide kom zoo dua uas sib txawv ntawm cov kav dej ib txwm muaj.
Kev tiv thaiv kev hnav thiab kev tiv thaiv corrosion yog cov ntsiab lus tseem ceeb ntawm silicon carbide pipeline lining. Hauv kev thauj mus los hauv kev lag luam, cov xov xwm xws li slurry, hmoov, kua qaub alkali, thiab lwm yam muaj qhov nyuaj siab thiab yooj yim rau kev puas tsuaj ntawm cov kav dej, lossis muaj kev xeb muaj zog thiab yooj yim rau kev puas tsuaj ntawm cov phab ntsa yeeb nkab. Cov khoom siv silicon carbide muaj qhov nyuaj heev, thib ob tsuas yog pob zeb diamond, thiab tuaj yeem yooj yim tiv taus kev puas tsuaj thiab kev hnav ntawm ntau yam khoom siv tawv; Tib lub sijhawm, nws muaj cov khoom siv tshuaj lom neeg ruaj khov thiab tsis ntshai acid thiab alkali corrosion lossis kub oxidation. Txawm tias nws ua haujlwm hauv cov kua qaub thiab alkali muaj zog, kub ib puag ncig ntev, nws tuaj yeem tswj tau qhov ruaj khov ntawm cov qauv thiab txo qhov ua tau ntawm kev puas tsuaj thiab xau ntawm cov kav dej.
Qhov kub thiab txias ua rau nws haum rau cov haujlwm nyuaj dua. Ntau yam khoom siv hauv kev tsim khoom lag luam yuav tsum tau thauj mus rau hauv qhov chaw kub thiab txias, thiab cov kab sib txuas ib txwm muaj feem yuav deformation thiab laus vim kub thiab txias. Txawm li cas los xij, silicon carbide tuaj yeem tiv taus qhov kub thiab txias heev thiab ua tau raws li qhov xav tau tshwj xeeb ntawm cov haujlwm kub thiab txias, nthuav dav cov kev siv kav dej.
Tsis tas li ntawd xwb, cov kav dej silicon carbide kuj muaj qhov zoo ntawm lub neej ntev thiab tus nqi kho qis. Cov kav dej ib txwm xav tau kev hloov pauv thiab kev saib xyuas ntau zaus, uas tsis yog tsuas yog siv cov neeg ua haujlwm thiab cov khoom siv xwb, tab sis kuj ua rau qeeb kev tsim khoom. Lub zog ntawm cov kav dej silicon carbide muaj zog heev, thiab nws tuaj yeem ua haujlwm ruaj khov rau lub sijhawm ntev nrog ib qho kev teeb tsa, txo qhov zaus ntawm kev saib xyuas thiab hloov pauv hauv theem tom qab. Nyob rau hauv lub sijhawm ntev, nws tuaj yeem txuag tau ntau tus nqi ua haujlwm thiab kev saib xyuas rau cov tuam txhab thiab xyuas kom meej tias kev tsim khoom txuas ntxiv mus.
Nrog rau qhov kev thov kom muaj kev nyab xeeb ntawm kev thauj mus los, kev ua haujlwm zoo, thiab kev ruaj khov hauv kev tsim khoom lag luam, cov kav dej silicon carbide tau siv dav dua vim nws cov txiaj ntsig tseem ceeb ntawm kev tiv thaiv kev hnav, kev tiv thaiv corrosion, thiab kev tiv thaiv kub siab. Nws tsis yog tsuas yog ib txheej tiv thaiv rau cov kav dej xwb, tab sis kuj yog ib qho kev lees paub txhim khu kev qha rau kev tsim khoom lag luam kev nyab xeeb, kev txo nqi thiab kev txhim kho kev ua haujlwm zoo. Hauv cov txheej txheem ntawm kev txhim kho kev lag luam zoo, nws tab tom dhau los ua "lub luag haujlwm tiv thaiv zoo" hauv kev thauj mus los hauv kev lag luam nrog nws cov kev ua tau zoo heev.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-18-2025