Hauv kev tsim cov khoom siv av nplaum, metallurgy, tshuaj lom neeg thiab lwm yam kev lag luam, cov kilns yog cov khoom siv tseem ceeb, thiab cov kem kilns uas txhawb nqa cov qauv sab hauv ntawm cov kilns thiab dais cov khoom kub siab tuaj yeem hu ua "pob txha" ntawm cov kilns. Lawv cov kev ua tau zoo cuam tshuam ncaj qha rau kev nyab xeeb kev ua haujlwm thiab lub neej ua haujlwm ntawm cov kilns. Ntawm ntau cov ntaub ntawv ncej, silicon carbide (SiC) kiln ncej tau maj mam dhau los ua qhov kev xaiv tseem ceeb hauv kev lag luam kub siab vim lawv qhov kev hloov pauv zoo, ntsiag to tiv thaiv kev ua haujlwm ruaj khov ntawm cov kilns.
Muaj ntau tus neeg yuav muaj kev nkag siab tsis meej txogsilicon carbide kem, tab sis lawv yeej nkag siab tau tias yog "kev txhawb nqa lub hauv paus nyuaj" hauv cov kilns. Silicon carbide nws tus kheej yog cov khoom siv inorganic tsis yog hlau uas muaj zog uas ua ke qhov kub siab ntawm cov ceramics nrog lub zog ntawm cov qauv ze rau cov hlau. Nws yog ib txwm hloov kho rau qhov chaw ib puag ncig hauv cov kilns, thiab cov kem ua los ntawm nws ib txwm muaj qhov zoo hauv kev daws teeb meem kub siab thiab cov khoom hnyav.
Ua ntej, qhov kev sib tw tseem ceeb ntawm cov kem silicon carbide kiln yog lawv qhov kev tiv taus zoo rau qhov kub thiab txias thiab kev poob siab thermal. Thaum lub sijhawm ua haujlwm ntawm lub kiln, qhov kub sab hauv tuaj yeem ncav cuag ntau pua lossis txawm tias ntau txhiab degrees Celsius, thiab qhov kub hloov pauv ntau heev thaum lub sijhawm cua sov thiab txias. Cov kem khoom siv ib txwm muaj feem yuav tawg thiab deformation vim yog thermal nthuav dav thiab kev cog lus hauv qhov chaw ib puag ncig no, ua rau cov qauv kiln tsis ruaj khov. Lub thermal stability ntawm cov khoom siv silicon carbide zoo heev, uas tuaj yeem tiv taus lub sijhawm ntev kub thiab tiv taus qhov cuam tshuam ntawm kev hloov pauv kub tam sim ntawd. Txawm tias nyob rau hauv rov ua dua txias thiab kub voj voog, nws tuaj yeem tswj tau qhov kev ua kom zoo thiab tsis yooj yim puas tsuaj, muab kev txhawb nqa tas mus li thiab ruaj khov rau lub kiln.
Qhov thib ob, nws lub peev xwm thauj khoom zoo heev ua rau nws tuaj yeem nqa cov nra hnyav. Cov qauv sab hauv ntawm lub qhov cub thiab lub peev xwm thauj khoom ntawm cov khoom siv yuav tsim cov kev nyuaj siab tas mus li rau ntawm cov kem. Cov kem khoom siv ib txwm uas nqa cov nra hnyav rau lub sijhawm ntev yuav muaj kev khoov, tawg, thiab lwm yam teeb meem, cuam tshuam loj heev rau kev ua haujlwm ib txwm ntawm lub qhov cub. Cov khoom siv silicon carbide muaj qhov nyuaj siab, cov qauv ntom ntom, thiab lub zog kho tshuab ntau dua li cov khoom siv ceramic thiab hlau ib txwm. Nws tuaj yeem yooj yim nqa ntau yam nra hnyav hauv lub qhov cub, thiab txawm tias nyob rau hauv qhov kub siab thiab hnyav ib puag ncig ntev, nws tuaj yeem tswj tau cov duab ruaj khov thiab zam kev phom sij ntawm cov qauv los ntawm kev tsis txaus lub peev xwm thauj khoom.
Tsis tas li ntawd xwb, kev tiv thaiv xeb zoo heev kuj tso cai rau cov kab kem silicon carbide kiln kom hloov kho rau cov xwm txheej ua haujlwm nyuaj dua. Thaum lub sijhawm tsim cov kilns hauv qee qhov kev lag luam, cov pa roj corrosive lossis hmoov av uas muaj acid thiab alkali raug tsim tawm. Cov kab kem khoom siv ib txwm uas raug rau cov xov xwm no ntev yuav maj mam corrode, ua rau lub zog txo qis thiab lub neej ua haujlwm luv dua. Silicon carbide nws tus kheej muaj cov khoom siv tshuaj ruaj khov thiab tuaj yeem tiv taus kev puas tsuaj ntawm cov xov xwm corrosive xws li acid thiab alkali. Txawm tias nyob rau hauv qhov chaw corrosive hnyav, nws tuaj yeem tswj tau qhov kev ua tau zoo ruaj khov yam tsis tas hloov pauv ntau zaus, txo cov nqi kho khoom siv rau cov lag luam.
Rau cov lag luam, kev ua haujlwm ruaj khov ntawm cov kilns muaj feem cuam tshuam ncaj qha rau kev ua haujlwm zoo thiab kev tswj tus nqi, thiab kev xaiv cov kem kiln txhim khu kev qha yog qhov tseem ceeb. Cov kem kiln silicon carbide, nrog rau lawv ntau yam zoo ntawm kev tiv taus kub siab, tiv taus thermal shock, muaj peev xwm thauj khoom tau zoo, thiab tiv taus corrosion, ua tau raws li qhov xav tau ntawm cov kilns kev lag luam. Lawv tuaj yeem ua kom muaj kev nyab xeeb ntawm kev ua haujlwm ntawm cov kilns, txuas lub neej ua haujlwm ntawm cov khoom siv, txo qhov zaus txij nkawm, thiab dhau los ua kev txhawb nqa zoo rau cov lag luam los txhim kho kev ruaj khov ntawm kev tsim khoom.
Nrog rau qhov kev thov kom muaj kev ntseeg siab thiab kev ruaj khov ntawm cov khoom siv hauv kev tsim khoom lag luam, cov xwm txheej ntawm daim ntawv thov ntawm cov ntaub ntawv silicon carbide kuj tseem nthuav dav tas li. Thiab cov kem ntawm silicon carbide kilns yuav txuas ntxiv ua haujlwm ua "lub hauv paus tseem ceeb", muab kev txhawb nqa zoo rau ntau yam kev lag luam kub siab thiab pab cov lag luam ua tiav kev tsim khoom thiab kev ua haujlwm zoo thiab ruaj khov.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-20-2025