Hauv ntau qhov xwm txheej kev lag luam, cov cuab yeej siv feem ntau yuav tsum tau tiv nrog ntau qhov chaw ua haujlwm hnyav, thiab teeb meem hnav thiab tsim kua muag cuam tshuam rau lub neej kev pabcuam thiab kev ua haujlwm ntawm cov khoom siv. Qhov tshwm sim ntawm silicon carbide hnav-tiv taus hauv ob sab phlu muab kev daws teeb meem zoo rau cov teeb meem no, thiab nws maj mam dhau los ua cov ntaub thaiv npog ruaj khov rau cov khoom siv.
Silicon carbide, ib qho kev sib xyaw ua ke ntawm carbon thiab silicon, muaj cov khoom zoo heev. Nws hardness tsis tshua muaj siab, thib ob tsuas yog qhov nyuaj tshaj plaws pob zeb diamond nyob rau hauv qhov, thiab nws cov Mohs hardness yog thib ob tsuas yog pob zeb diamond, uas txhais tau hais tias nws tuaj yeem yooj yim tiv thaiv khawb thiab txiav ntawm ntau yam nyuaj thiab ua tau zoo hauv kev hnav tsis kam. Nyob rau tib lub sijhawm, silicon carbide kuj muaj cov coefficient ntawm kev sib txhuam, uas tuaj yeem tswj tus nqi hnav ntawm qhov tsis tshua muaj siab nyob rau hauv cov xwm txheej nyuaj xws li kev sib txhuam qhuav los yog lubrication tsis zoo, zoo heev rau kev pab cuam lub neej ntawm cov khoom siv.
Ntxiv rau qhov hardness thiab tsis tshua muaj kev sib txhuam coefficient, cov tshuaj lom neeg ntawm silicon carbide kuj ruaj khov, nrog rau cov tshuaj zoo heev inertness. Nws muaj zog tiv thaiv corrosion los ntawm cov kua qaub muaj zog (tshwj tsis yog hydrofluoric acid thiab kub concentrated phosphoric acid), muaj zog hauv paus, molten ntsev, thiab ntau yam hlau molten (xws li txhuas, zinc, tooj liab). Cov yam ntxwv no tso cai rau nws ua haujlwm ruaj khov txawm tias nyob rau hauv ib puag ncig hnyav uas muaj corrosive media thiab hnav coexist.
Los ntawm qhov kev xav ntawm thermal thiab lub cev muaj zog, silicon carbide kuj qhia tau zoo heev. Nws muaj cov thermal conductivity thiab muaj peev xwm ua tau zoo dissipate lub tshav kub tsim los ntawm kev sib txhuam, tsis txhob cov khoom softening los yog thermal stress cracking tshwm sim los ntawm lub zos overheating ntawm cov khoom, thiab tswj zoo hnav tsis kam; Nws cov coefficient ntawm thermal expansion yog qhov tsawg, uas tuaj yeem ua kom muaj kev ruaj ntseg ntawm cov khoom siv thiab txo qhov kev puas tsuaj ntawm thermal kev nyuaj siab rau cov cuab yeej thaum kub hloov pauv. Tsis tas li ntawd, qhov kub tsis kam ntawm silicon carbide kuj tseem zoo heev, nrog rau kev siv kub txog li 1350 ° C hauv huab cua (oxidizing ib puag ncig) thiab txawm tias siab dua nyob rau hauv inert lossis txo ib puag ncig.
Raws li cov yam ntxwv saum toj no, silicon carbide hnav-tiv taus hauv ob sab phlu tau siv dav hauv ntau lub lag luam. Hauv kev lag luam hluav taws xob, cov kav dej siv los thauj cov ntaub ntawv xws li ya tshauv feem ntau ntxuav tawm los ntawm cov khoom siv ceev ceev, thiab cov khoom siv zoo tib yam cov kav dej siv tau sai sai. Txawm li cas los xij, tom qab siv silicon carbide hnav-tiv taus hauv ob sab phlu, hnav tsis kam ntawm cov raj xa dej tau zoo heev, thiab kev pab cuam lub neej yog txuas ntxiv; Hauv kev lag luam mining, kev teeb tsa ntawm silicon carbide hnav-tiv taus hauv ob sab phlu ntawm cov khoom hnav-tiv taus xws li slurry conveying pipelines thiab crusher interiors txo cov khoom tu ntau zaus thiab txhim kho kev tsim khoom; Nyob rau hauv kev lag luam tshuaj, ntsib corrosive media thiab complex tshuaj tshuaj tiv thaiv ib puag ncig, silicon carbide hnav-resistant hauv ob sab phlu tsis yog tsuas hnav-resistant, tab sis kuj zoo resists tshuaj corrosion, ua kom muaj kev ruaj ntseg thiab ruaj khov ntawm cov khoom siv.
Hauv luv luv, silicon carbide hnav-tiv taus hauv ob sab phlu muab kev tiv thaiv txhim khu kev qha rau cov khoom siv nrog nws cov kev ua tau zoo heev. Nrog kev txhim kho txuas ntxiv ntawm cov ntaub ntawv tshawb fawb, kev ua haujlwm ntawm silicon carbide hnav-tiv taus hauv ob sab phlu yuav ua kom zoo dua qub, thiab tus nqi yuav raug txo ntxiv. Nyob rau hauv lub neej yav tom ntej, nws yuav tsum tau siv nyob rau hauv ntau lub teb thiab ua lub luag hauj lwm ntau dua nyob rau hauv kev ua tau zoo thiab ruaj khov ntawm industrial ntau lawm.
Post lub sij hawm: Lub Xya hli ntuj-28-2025