Silicon carbide ceramicsyog cov khoom siv tseem ceeb hauv ntau qhov kev lag luam vim lawv cov khoom tshwj xeeb, suav nrog cov hardness siab, tsis tshua muaj siab thiab zoo heev thaum tshav kub kub. Cov khoom no ua rau silicon carbide (SiC) qhov kev xaiv zoo tshaj plaws rau kev siv hauv kev tsim kho tshuab, tshuaj lom neeg thiab metallurgical industries, industrial kilns thiab ntau yam khoom siv cua sov. Kab lus no yuav siv sij hawm saib qhov tob ntawm ntau daim ntawv thov ntawm silicon carbide ceramics, qhia txog lawv qhov tseem ceeb hauv kev tsim khoom niaj hnub thiab kev lag luam.
Nyob rau hauv lub tshav pob ntawm mechanical engineering, silicon carbide ceramics tau siv ntau dua vim lawv cov hardness zoo heev thiab hnav tsis kam. Cov ntaub ntawv no tshwj xeeb tshaj yog tsim rau kev tsim cov khoom me me insulating thiab hnav cov khoom uas yuav tsum tau ua kom ntev thiab kev ntseeg tau. Silicon carbide tuaj yeem tiv taus qhov kub thiab txias yam tsis muaj deforming lossis poob kev ncaj ncees, ua rau nws zoo tagnrho rau kev siv cov tshuab ua haujlwm siab. Raws li kev lag luam txuas ntxiv xav tau cov khoom siv tau zoo thiab ruaj khov, lub luag haujlwm ntawm silicon carbide ceramics hauv kev tsim kho tshuab yuav tsum nthuav dav heev.
Kev lag luam tshuaj thiab metallurgical kuj tau txais txiaj ntsig zoo los ntawm silicon carbide ceramics. Cov ntaub ntawv no muaj kev tiv thaiv corrosion zoo heev, tshwj xeeb tshaj yog rau cov hlau molten, slag thiab alkali hlau. Cov cuab yeej no tseem ceeb heev nyob rau hauv ib puag ncig uas cov khoom siv tsoos yuav ua tsis tiav, ua rau muaj kev poob qis thiab kev saib xyuas. Qhov tseem ceeb, ntau dua 65% ntawm cov tshuab tawg loj thoob ntiaj teb siv cov khoom siv silicon nitride-bonded silicon carbide ua cov khoom siv hauv lub cev. Daim ntawv thov no tsis tsuas yog txuas ntxiv lub neej kev pab cuam ntawm blast furnaces los ntawm 20-40%, tab sis kuj txhim kho kev khiav hauj lwm efficiency. Tsis tas li ntawd, silicon carbide ceramics kuj tseem siv tau los ua cov khoom siv hluav taws xob thiab cov crucibles rau cov hlau smelting xws li txhuas, tooj liab thiab zinc, uas qhia tau hais tias nws muaj peev xwm ua tau zoo hauv cov ntawv thov kub.
Hauv kev lag luam kilns, silicon carbide ceramics ua lub luag haujlwm tseem ceeb hauv kev ua kom zoo dua qub thiab siv zog ua haujlwm. Kev siv cov rooj tog silicon carbide kiln tuaj yeem txo qhov hnyav thiab qhov chaw yuav tsum tau ua, uas tshwj xeeb tshaj yog muaj txiaj ntsig zoo rau kev lag luam xws li kev lag luam teeb, khoom siv hauv tsev thiab hluav taws xob. Lub teeb yuag ntawm silicon carbide Cheebtsam pab txhim kho kev siv hluav taws xob vim tias tsawg zog yuav tsum tau ua kom sov lub qhov cub. Tsis tas li ntawd, qhov kev cuam tshuam zoo heev ntawm cov khoom siv silicon carbide tso cai rau qhov kub thiab txias kom nce nrawm dua, ntxiv kev txhim kho kev ua haujlwm ntawm qhov cub.
Silicon carbide ceramics tseem yog ib qho tseem ceeb rau ntau yam khoom siv cua sov siv rau sintering, melting, thiab cov khoom siv kho cua sov. Indirect cua sov nrog roj tau dhau los ua ib txoj hauv kev nyiam hauv cov txheej txheem no vim tias nws ua kom zoo dua thermal efficiency thaum txo qis cov pa phem, xws li nitrogen oxides (NOx). Kev siv cov silicon carbide hauv cov khoom siv cua sov no tsis tsuas yog txhim kho kev ua tau zoo tab sis kuj ua raws li kev siv zog thoob ntiaj teb los txo cov kev cuam tshuam ib puag ncig. Raws li kev lag luam siv zog rau ntau qhov kev daws teeb meem ib puag ncig, qhov kev thov rau silicon carbide ceramics rau cov ntawv siv cua sov yuav loj tuaj.
Lub versatility ntawm silicon carbide ceramics ncua tshaj li ib txwm siv raws li lawv tau nce siv nyob rau hauv advanced technologies. Piv txwv li, hauv cov khoom siv hluav taws xob, silicon carbide yog siv los tsim cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob. Lub siab thermal conductivity thiab hluav taws xob rwb thaiv tsev ntawm silicon carbide ua rau nws zoo tagnrho rau high-frequency thiab high-temperature electronic applications. Raws li qhov kev thov rau cov khoom siv hluav taws xob muaj txiaj ntsig thiab txhim khu kev qha txuas ntxiv mus, silicon carbide ceramics yuav tsum ua lub luag haujlwm tseem ceeb hauv kev tsim hluav taws xob yav tom ntej.
Tsis tas li ntawd, aerospace thiab automotive industries pib paub txog lub peev xwm ntawm silicon carbide ceramics rau lub teeb yuag, lub zog siab. Silicon carbide muaj peev xwm tiv taus qhov kub thiab txias ib puag ncig ua rau nws muaj kev xaiv zoo rau cov ntawv thov xws li turbine hniav, nres discs, thiab lwm yam tseem ceeb. Raws li cov kev lag luam no nrhiav kev txhim kho roj efficiency thiab txo cov emissions, kev koom ua ke ntawm silicon carbide ceramics rau hauv lawv cov qauv tsim yuav ua tau kom muaj kev ua tau zoo thiab ruaj khov.
Hauv cov ntsiab lus, kev siv ntawm silicon carbide ceramics yog dav, ua tsaug rau lawv cov khoom tshwj xeeb thiab kev ua tau zoo. Los ntawm kev siv tshuab engineering mus rau kev ua tshuaj lom neeg, kev lag luam kilns thiab cov khoom siv hluav taws xob siab, silicon carbide ceramics tau ua pov thawj tias yog ib feem tseem ceeb ntawm kev tsim khoom niaj hnub no. Raws li kev siv thev naus laus zis txuas ntxiv mus, lub peev xwm rau silicon carbide ceramics los pab txhawb rau cov kev daws teeb meem tshiab thiab kev coj ua kom ruaj khov tsuas yog nce ntxiv. Lub neej yav tom ntej ntawm silicon carbide ceramics tau cog lus tseg, thiab kev tshawb fawb txuas ntxiv thiab kev txhim kho yog paving txoj hauv kev rau cov ntawv thov tshiab thiab txhim kho kev ua tau zoo hauv ntau yam.
Lub sij hawm xa tuaj: Mar-29-2025