Hauv kev lag luam kub siab, qhov xav tau cov khoom siv ruaj khov thiab tiv taus cua sov yog qhov tsis sib tham. Txij li cov cub tawg hlau mus rau cov cub tawg cement, cov khoom siv uas raug rau qhov kub thiab txias heev, kev puas tsuaj ntawm tshuaj lom neeg, thiab kev siv tshuab xav tau kev tiv thaiv zoo kom ntseeg tau tias kev ua haujlwm zoo thiab lub neej ntev. Qhov no yog qhov uascorundum castablesawv tawm ua ib yam khoom siv uas hloov pauv kev ua si, muab kev ua tau zoo tsis muaj qhov sib piv uas ua tau raws li cov qauv kev lag luam nruj tshaj plaws.
Corundum castable yog ib yam khoom siv refractory uas muaj corundum (aluminum oxide, Al₂O₃) ua cov khoom sib xyaw thiab matrix, ua ke nrog cov khoom siv zoo thiab cov khoom ntxiv. Nws cov khoom tshwj xeeb yog los ntawm cov yam ntxwv ntawm corundum, uas muaj qhov kub yaj tshaj 2000 ° C, kev ruaj khov thermal zoo heev, thiab lub zog kho tshuab zoo dua. Tsis zoo li cov khoom siv refractory ib txwm muaj, corundum castable muaj kev sib xyaw ua ke ntawm kev ywj pheej thiab kev ua haujlwm ntev - nws qhov xwm txheej pourable tso cai rau kev teeb tsa yooj yim hauv cov duab thiab cov qauv nyuaj, thaum nws cov qauv ntom ntom tiv taus spalling, abrasion, thiab tshuaj lom neeg tawm tsam los ntawm slags, acids, thiab alkalis.
Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm corundum castable yog nws qhov kev hloov pauv thoob plaws hauv kev lag luam. Hauv kev lag luam hlau, nws yog siv dav hauv cov ladles, tundishes, thiab lub qhov cub tawg, qhov twg nws tiv taus cov hlau molten kub thiab cov tshuaj tiv thaiv slag hnyav. Cov chaw tsim khoom hlau vam khom corundum castable los txo cov sijhawm tsis ua haujlwm los ntawm cov khoom tsis ua haujlwm, vim nws lub neej ua haujlwm ntev txhais tau tias muaj tsawg dua kev saib xyuas thiab cov nqi ua haujlwm qis dua. Rau kev lag luam cement, corundum castable yog siv rau hauv cov chaw hloov pauv cement kiln thiab cov cua tertiary, ua siab ntev kub thiab abrasive cement clinker. Nws txoj kev tiv thaiv rau thermal poob siab ua kom cov khoom tseem nyob ruaj khov txawm tias thaum muaj kev hloov pauv kub sai, ib qho kev sib tw hauv kev tsim cement.
Tshaj li hlau thiab cement, corundum castable zoo heev hauv cov hlau tsis yog ferrous, kev tsim iav, thiab cov chaw hlawv pov tseg. Hauv kev hlawv tsis yog ferrous (piv txwv li, tooj liab, txhuas), nws tiv taus xeb los ntawm cov hlau yaj thiab cov dej ntws, tiv thaiv cov khoom siv tseem ceeb xws li cov cub tawg smelting thiab crucibles. Cov chaw tsim iav siv corundum castable hauv cov khoom siv rov ua dua tshiab thiab cov chaw nres nkoj cub tawg, qhov twg nws tswj kev ua kom zoo hauv qab qhov kub siab tas mus li thiab kev raug tshuaj lom los ntawm cov iav yaj. Cov chaw hlawv pov tseg tau txais txiaj ntsig los ntawm nws txoj kev tiv thaiv cov pa phem thiab cov tshauv puas, ntev lub neej ntawm cov ntaub thaiv hlawv thiab txo cov kev pheej hmoo ib puag ncig.
Lwm yam ntxwv ntawm corundum castable yog nws qhov kev ua tau zoo customizable. Cov chaw tsim khoom tuaj yeem kho cov khoom sib xyaw ntawm corundum (piv txwv li, corundum dawb, corundum xim av, corundum tabular) thiab cov khoom ntxiv kom haum rau cov khoom siv rau cov kev xav tau tshwj xeeb. Piv txwv li, high-alumina corundum castable (Al₂O₃ cov ntsiab lus ≥ 90%) muab kev tiv thaiv cua sov zoo dua rau cov chaw kub siab heev, thaum cov cement qis lossis ultra-low-cement formulations txhim kho qhov ceev thiab txo porosity, txo qis slag nkag mus. Tsis tas li ntawd, cov kev xaiv corundum castable sib dua muab cov rwb thaiv tsev thermal yam tsis muaj kev cuam tshuam lub zog kho tshuab, zoo tagnrho rau kev txuag hluav taws xob tsim kev lag luam.
Thaum xaiv cov corundum castable, nws yog ib qho tseem ceeb heev uas yuav tsum koom tes nrog tus neeg muag khoom uas muaj npe nrov uas ua raws li cov qauv zoo thoob ntiaj teb (piv txwv li, ISO, ASTM). Cov corundum castable zoo raug tswj xyuas zoo nruj, ua kom muaj kev ua tau zoo tas li, muaj cov tshuaj lom neeg ruaj khov, thiab cov khoom siv txhim kho tau zoo. Cov neeg muag khoom uas muaj kev txawj ntse kuj tuaj yeem muab kev txhawb nqa hauv qhov chaw, suav nrog cov lus qhia xaiv cov khoom siv, cov lus qhia sib tov, thiab cov lus qhia txij nkawm tom qab kev teeb tsa, ua kom koj cov peev txheej muaj nqis ntau tshaj plaws.
Nyob rau hauv kev lag luam niaj hnub no uas muaj kev sib tw heev, kev txo lub sijhawm tsis ua haujlwm, txo cov nqi kho, thiab txhim kho kev ua haujlwm zoo yog qhov tseem ceeb tshaj plaws. Corundum castable xa mus rau txhua qhov chaw, muab kev daws teeb meem pheej yig thiab kav ntev rau cov ntawv thov kub siab. Nws qhov kev tiv taus cua sov zoo heev, kev tiv taus corrosion, thiab kev hloov pauv tau ua rau nws yog cov khoom siv xaiv rau cov lag luam uas nrhiav kev txhim kho kev tsim khoom thiab kev ntseeg siab.
Txawm koj ua haujlwm lub Hoobkas hlau, Hoobkas cement, Hoobkas iav, lossis chaw hlawv pov tseg, corundum castable tuaj yeem hloov koj cov haujlwm kub siab. Nqis peev rau hauv corundum castable zoo hnub no thiab paub txog qhov sib txawv ntawm kev ua haujlwm ntawm cov khoom siv, lub neej ntev, thiab cov txiaj ntsig zoo. Tiv tauj peb pab neeg ntawm cov kws tshaj lij refractory kom paub ntau ntxiv txog peb cov kev daws teeb meem corundum castable thiab ua thawj kauj ruam mus rau kev ua kom zoo dua koj cov txheej txheem kev lag luam.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-14-2025
