Hauv ntau qhov xwm txheej kev tsim khoom lag luam, qhov chaw kub siab yog qhov tshwm sim tab sis nyuaj heev. Txawm hais tias nws yog cov nplaim taws kub hnyiab thaum lub sijhawm hlau smelting, cov cub tawg kub siab hauv kev tsim iav, lossis cov reactors kub siab hauv kev tsim tshuaj lom neeg, cov kev cai nruj heev raug muab tso rau ntawm qhov kub siab tiv taus ntawm cov ntaub ntawv. Muaj ib yam khoom uas ua lub luag haujlwm tseem ceeb hauv cov teb kub siab no thiab tsis tuaj yeem tsis quav ntsej, uas yogsilicon carbide cov blocks uas tiv taus cua sov.
Silicon carbide, los ntawm qhov kev xav txog cov tshuaj lom neeg, yog ib qho sib xyaw ua ke ntawm ob lub ntsiab lus: silicon (Si) thiab carbon (C). Txawm hais tias muaj lo lus 'silicon' hauv nws lub npe, nws qhov tsos txawv ntawm cov khoom siv silicon uas peb pom hauv peb lub neej txhua hnub. Silicon carbide feem ntau zoo li cov siv lead ua dub lossis ntsuab, nrog cov qauv tawv thiab siab tawv. Thaum siv los khawb iav, nws yuav yooj yim tawm cov cim rau ntawm iav, ib yam li txiav butter nrog rab riam me me.
Qhov laj thawj uas ua rau cov silicon carbide cov blocks tiv taus cua sov tuaj yeem sawv tawm hauv qhov chaw kub siab yog vim lawv cov khoom zoo heev. Ua ntej, nws muaj kev tiv taus kub siab heev, nrog rau qhov chaw yaj siab heev, uas txhais tau tias nws tuaj yeem ruaj khov hauv qhov chaw ua haujlwm kub siab thiab yuav tsis yooj yim mos, deform, lossis yaj. Thaum qhov kub hauv lub cub tawg hlau nce siab, lwm cov ntaub ntawv yuav twb pib "ris lub nra hnyav", tab sis silicon carbide cov blocks tiv taus cua sov tuaj yeem "nyob twj ywm" thiab ua lub luag haujlwm ntawm kev tiv thaiv lub cev cub tawg thiab tswj kev tsim khoom.
Qhov kev ruaj khov tshuaj lom neeg ntawm silicon carbide cua sov-resistant blocks kuj zoo heev. Nws muaj kev tiv thaiv zoo rau ntau yam tshuaj lom neeg, thiab nws nyuaj rau cov kua qaub corrosive lossis alkaline muaj zog ua rau puas tsuaj rau nws. Hauv kev tsim tshuaj lom neeg, ntau yam tshuaj corrosive feem ntau ntsib. Kev siv silicon carbide cua sov-resistant blocks ua lub hauv paus ntawm cov khoom siv tshuaj tiv thaiv tuaj yeem tiv thaiv cov khoom siv kom tsis txhob raug corroded, ntev lub neej kev pabcuam ntawm cov khoom siv, thiab txo cov nqi tsim khoom.
Ntxiv rau cov yam ntxwv saum toj no, cov blocks silicon carbide uas tiv taus cua sov kuj muaj kev tiv taus zoo thiab muaj zog siab. Hauv qee qhov chaw kub siab nrog kev puas tsuaj ntawm cov khoom siv, xws li cyclone separators thiab calcination furnaces hauv cov nroj tsuag cement, cov blocks silicon carbide uas tiv taus cua sov tuaj yeem txo qhov poob los ntawm kev sib txhuam ntawm cov khoom siv vim lawv cov yam ntxwv tiv taus kev hnav, ua kom ntseeg tau tias cov khoom siv ua haujlwm ib txwm muaj. Nws lub zog siab ua rau nws tiv taus qee qhov siab thiab kev cuam tshuam, tswj kev ua haujlwm zoo hauv cov chaw ua haujlwm nyuaj.
Cov blocks uas tiv taus cua sov silicon carbide siv dav hauv kev lag luam. Hauv kev lag luam hlau, nws siv dav hauv cov khoom siv xws li lub cub tawg thiab lub qhov cub tawg kub. Hauv lub cub tawg, cov hlau molten kub siab thiab slag muaj qhov xav tau siab heev rau cov ntaub ntawv sab hauv. Cov blocks uas tiv taus cua sov silicon carbide, nrog lawv qhov tiv taus kub siab thiab tiv taus kev yaig, tau dhau los ua qhov kev xaiv zoo tshaj plaws rau cov ntaub ntawv sab hauv, ua kom lub neej ua haujlwm ntawm lub cub tawg ntev dua thiab txhim kho kev ua haujlwm thiab zoo ntawm kev tsim hlau. Hauv lub cub tawg kub, cov blocks uas tiv taus cua sov silicon carbide ua haujlwm ua lub cev khaws cua sov, uas tuaj yeem khaws thiab tso cua sov tau zoo, muab cua kub kub rau lub cub tawg thiab txhim kho kev siv hluav taws xob zoo.
Hauv kev lag luam hlau uas tsis yog ferrous, xws li cov txheej txheem smelting ntawm txhuas, tooj liab thiab lwm yam hlau, silicon carbide cua sov-resistant blocks kuj tseem ceeb heev. Qhov kub yaj ntawm cov hlau no yog qhov siab heev, thiab ntau yam corrosive gases thiab slag raug tsim thaum lub sijhawm melting. Silicon carbide cua sov-resistant blocks tuaj yeem hloov kho tau zoo rau cov chaw ib puag ncig hnyav, tiv thaiv cov khoom siv hauv qhov cub, thiab xyuas kom meej tias cov hlau uas tsis yog ferrous smelting du.
Cov blocks uas tiv taus cua sov silicon carbide kuj muaj cov ntawv thov tseem ceeb hauv kev lag luam ceramic thiab iav. Kev hlawv ceramic yuav tsum tau ua nyob rau hauv qhov cub kub siab. Cov cub ua los ntawm cov blocks silicon carbide uas tiv taus cua sov, xws li cov laug cam, cov thawv, thiab lwm yam, tsis tsuas yog tiv taus qhov kub siab xwb, tab sis kuj ua kom muaj kev ruaj khov thiab sib xws ntawm cov khoom ceramic thaum lub sijhawm hlawv, uas pab txhim kho qhov zoo ntawm cov khoom ceramic. Hauv cov cub tawg iav, cov blocks silicon carbide uas tiv taus cua sov yog siv rau hauv pem teb thiab chav cia cua sov, uas tuaj yeem tiv taus qhov kub siab thiab kev txhuam ntawm cov kua iav, thaum txhim kho qhov ua haujlwm thermal ntawm lub cub tawg thiab txo kev siv hluav taws xob.
Nrog rau kev nce qib ntawm thev naus laus zis thiab kev txhim kho kev lag luam tas mus li, kev siv cov silicon carbide heat-resistant blocks yuav dav dua. Ntawm ib sab tes, cov kws tshawb fawb pheej tshawb nrhiav cov txheej txheem npaj tshiab thiab cov thev naus laus zis los txhim kho kev ua tau zoo ntawm silicon carbide heat-resistant blocks thiab txo cov nqi tsim khoom. Piv txwv li, los ntawm kev siv cov txheej txheem sintering tshiab, qhov ceev thiab cov qauv ntawm silicon carbide heat-resistant blocks tuaj yeem nce ntxiv, yog li txhim kho lawv cov kev ua tau zoo tag nrho. Ntawm qhov tod tes, nrog rau kev nce sai ntawm cov lag luam tshiab xws li lub zog tshiab thiab aerospace, qhov kev thov rau cov khoom siv tiv taus kub siab kuj nce ntxiv, thiab silicon carbide heat-resistant blocks yuav ua lub luag haujlwm ntau dua hauv cov teb no.
Lub sijhawm tshaj tawm: Cuaj hlis-02-2025