Hauv kev tsim khoom lag luam, cov kav dej zoo li "cov hlab ntsha" thauj cov khoom siv uas muaj zog heev xws li cov hlau, cov hmoov thee, thiab cov av nkos. Raws sijhawm, cov phab ntsa sab hauv ntawm cov kav dej ib txwm yooj yim hnav nyias thiab perforated, xav tau kev hloov pauv ntau zaus thiab muaj peev xwm cuam tshuam rau kev tsim khoom vim muaj kev xau. Thaum lub sijhawm no, cov khoom siv hu ua"Cov kav dej silicon carbide uas tiv taus kev hnav"tau muaj txiaj ntsig zoo. Nws zoo li muab "lub tsho tiv thaiv mos txwv" rau ntawm cov kav dej, ua tus "kws tshaj lij" hauv kev daws teeb meem kev puas tsuaj ntawm cov khoom siv.
Tej zaum ib tug neeg yuav nug tias, silicon carbide yog dab tsi? Qhov tseeb, nws yog ib yam khoom siv inorganic uas tsim los ntawm cov khoom siv dag zog nrog cov qauv nruj heev. Piv txwv li, phab ntsa sab hauv ntawm cov kav dej ib txwm zoo li hauv pem teb cement ntxhib, thiab thaum cov khoom ntws los ntawm nws, nws pheej "khawb" hauv av; Phab ntsa sab hauv ntawm cov kav dej silicon carbide zoo li cov pob zeb tawv polished, nrog kev tiv thaiv qis thiab hnav me me thaum cov khoom ntws los ntawm. Cov yam ntxwv no ua rau nws muaj zog dua hauv kev tiv thaiv hnav dua li cov kav hlau ib txwm thiab cov kav dej ceramic, thiab thaum siv rau hauv kev xa cov khoom siv hnav siab, nws lub neej kev pabcuam tuaj yeem ntev dua ntau zaus.
Txawm li cas los xij, silicon carbide nws tus kheej yog qhov tsis yooj yim tawg thiab tuaj yeem yooj yim tawg thaum ncaj qha ua rau hauv cov kav dej. Feem ntau ntawm cov kav dej silicon carbide hnav-resistant tam sim no sib xyaw cov khoom siv silicon carbide nrog cov kav dej hlau - los ntawm kev lo ib txheej ntawm cov vuas ceramic silicon carbide rau ntawm phab ntsa sab hauv ntawm cov kav dej hlau, lossis los ntawm kev siv cov txheej txheem tshwj xeeb los sib tov silicon carbide hmoov thiab nplaum, txheej phab ntsa sab hauv ntawm cov kav dej kom tsim ib txheej tiv taus hnav-resistant. Ua li no, cov kav dej muaj ob qho tib si toughness ntawm cov hlau, uas tsis yooj yim deformed lossis tawg, thiab hnav-resistant ntawm silicon carbide, sib npaug practicality thiab durability.
Ntxiv rau qhov tsis kam hnav, cov kav dej silicon carbide hnav-resistant kuj muaj qhov zoo ntawm kev tiv taus kub thiab qis thiab tiv taus corrosion. Qee cov ntaub ntawv kev lag luam tsis yog tsuas yog abrasive heev, tab sis kuj tseem muaj cov khoom acidic lossis alkaline. Cov kav dej ib txwm yooj yim corroded los ntawm kev sib cuag ntev, thaum silicon carbide muaj zog tiv taus acid thiab alkali; Txawm tias qhov kub ntawm cov khoom thauj hloov pauv, nws cov kev ua tau zoo yuav tsis raug cuam tshuam loj heev, thiab nws cov xwm txheej siv dav heev, los ntawm kev tsuas thiab fais fab mus rau kev lag luam tshuaj lom neeg thiab hlau, qhov twg nws muaj nyob tuaj yeem pom.
Rau cov lag luam, kev siv cov kav dej silicon carbide uas tsis yooj yim hnav tsis yog tsuas yog hloov ib yam khoom xwb, tab sis kuj txo qhov zaus ntawm kev hloov cov kav dej, txo cov nqi ntawm kev saib xyuas lub sijhawm tsis ua haujlwm, thiab txo cov kev phom sij ntawm kev nyab xeeb los ntawm cov khoom xau. Txawm hais tias nws cov peev txheej pib siab dua li cov kav dej ib txwm muaj, thaum kawg, nws pheej yig dua.
Niaj hnub nim no, nrog rau qhov kev thov kom muaj zog thiab kev nyab xeeb ntawm cov khoom siv hauv kev tsim khoom lag luam, kev siv cov kav dej silicon carbide hnav-resistant tau dhau los ua ntau dua. Qhov "kev txhim kho kav dej" uas zoo li tsis tseem ceeb no zais qhov kev txawj ntse ntawm kev tsim kho tshiab ntawm cov khoom siv hauv kev lag luam, ua rau cov txheej txheem tsim khoom ruaj khov thiab ua haujlwm tau zoo dua - qhov no yog cov kav dej silicon carbide hnav-resistant, "tus kws tshaj lij hnav-resistant" ntsiag to tiv thaiv "cov hlab ntsha" ntawm kev lag luam.
Lub sijhawm tshaj tawm: Cuaj hlis-24-2025