Kev hnav thiab tsim kua muag yog qhov teeb meem uas tsis zam tau hauv kev tsim khoom lag luam thiab lub neej txhua hnub. Txij li thaum cov khoom siv hnav thaum lub sijhawm ua haujlwm tshuab mus rau huab cua thiab kev yaig ntawm cov chaw ua haujlwm, kev hnav thiab tsim kua muag tsis yog tsuas yog txo lub neej ua haujlwm ntawm cov khoom siv xwb, tab sis kuj tseem yuav ua rau cov nqi kho thiab cuam tshuam rau kev ua haujlwm zoo. Ntawm ntau cov ntaub ntawv uas cuam tshuam nrog kev hnav thiab tsim kua muag, silicon carbide tau dhau los ua "tus neeg ua si nyuaj" vim nws qhov kev tiv thaiv kev hnav zoo heev, ntsiag to tiv thaiv kev ua haujlwm ruaj khov ntawm ntau qhov chaw.
Qhov laj thawj yog vim li cassilicon carbidetuaj yeem dhau los ua "tus huab tais uas tsis yooj yim hnav" nyob rau hauv nws cov qauv siv lead ua tshwj xeeb. Nws yog ib qho sib xyaw ua ke ntawm ob lub ntsiab lus, silicon thiab carbon, sib txuas ua ke los ntawm cov ntawv cog lus covalent. Lub zog sib txuas ntawm cov tshuaj sib txuas no ua rau silicon carbide siv lead ua muaj zog heev - thib ob tsuas yog pob zeb diamond thiab cubic boron nitride, ntau dua li cov hlau ib txwm thiab feem ntau cov ntaub ntawv ceramic. Cov qauv siv lead ua tawv zoo li "kev thaiv ntuj", uas nyuaj rau ua puas rau cov qauv sab hauv ntawm silicon carbide thaum cov khoom sab nraud sim txhuam lossis khawb qhov chaw, tiv taus kev hnav thiab tsim kua muag.
Ntxiv rau nws qhov zoo ntawm qhov nyuaj, qhov ruaj khov tshuaj ntawm silicon carbide kuj ntxiv rau nws qhov kev tiv thaiv hnav. Nws tsis yooj yim rau cov tshuaj tiv thaiv hauv qhov chaw kub thiab acidity, thiab yuav tsis ua rau cov qauv nto puas tsuaj vim oxidation lossis corrosion, yog li tswj kev tiv thaiv hnav ruaj khov. Txawm hais tias nws yog cov ntaub ntawv refractory hauv qhov cub kub siab lossis cov phaj tiv thaiv hnav hauv cov tshuab tsuas, silicon carbide tuaj yeem tuav nws txoj haujlwm hauv qhov chaw nyuaj thiab txo qhov poob los ntawm kev hnav thiab tsim kua muag.
Muaj ntau tus neeg yuav tsis paub txog silicon carbide, tab sis nws twb tau nkag mus rau txhua yam ntawm peb lub neej. Hauv kev tsim kho, cov plag tsev uas tiv taus kev hnav nrog silicon carbide ntxiv tuaj yeem tiv taus kev tsoo tsheb ntau zaus thiab kev taug kev ntawm cov neeg ua haujlwm, tswj kom lub hauv av du thiab tiaj tus ntev; Hauv kev tsim khoom siv tshuab, cov cuab yeej txiav thiab cov log sib tsoo ua los ntawm silicon carbide tuaj yeem txiav thiab txhuam cov khoom siv hlau tawv nrog kev hnav thiab tsim kua muag tsawg kawg nkaus; Txawm tias nyob rau hauv kev lag luam ntawm lub zog tshiab, silicon carbide ceramic bearings, nrog lawv cov khoom tiv taus kev hnav, pab cov khoom siv ua tiav kev ua haujlwm siab thiab lub neej ntev.
Ua ib yam khoom siv uas tiv taus kev hnav zoo heev, silicon carbide tsis yog tsuas yog qhia txog kev zoo nkauj ntawm kev tshawb fawb txog cov ntaub ntawv xwb, tab sis kuj ua lub luag haujlwm tseem ceeb hauv kev txhawb nqa kev txhim kho kev lag luam thiab txo kev siv hluav taws xob. Nrog rau kev nce qib ntawm thev naus laus zis, cov xwm txheej siv silicon carbide tseem nthuav dav. Yav tom ntej, "tus huab tais uas tiv taus kev hnav" no yuav coj kev lees paub ntev dua thiab txhim khu kev qha rau ntau thaj chaw, qhia txog lub zog ntawm cov khoom siv ntawm "kev ua siab ntev" nrog lub zog.
Lub sijhawm tshaj tawm: Lub Kaum Hli-31-2025