Hauv ntau yam ntawm kev tsim khoom, cov cuab yeej siv thiab tsim kua muag yeej ib txwm yog qhov tseem ceeb cuam tshuam rau kev tsim khoom thiab tus nqi. Txhawm rau daws qhov teeb meem no, ntau yam ntaub ntawv hnav-tiv taus tau tshwm sim, ntawm cov uas silicon carbide hnav-tiv taus hauv ob sab phlu tau maj mam dhau los ua "kev nyiam tshiab" hauv kev lag luam vim nws qhov kev ua tau zoo heev. Niaj hnub no, cia peb delve rau hauv no tej yam yees siv khoom.
1. yog dab tsisilicon carbide hnav-resistant hauv ob sab phlu?
Silicon carbide (SiC) yog qhov sib xyaw ua ke ntawm silicon thiab carbon, nrog cov qauv siv lead ua tshwj xeeb thiab ruaj khov. Nws cov txheej txheem yooj yim yog interwoven SiC thiab CSi tetrahedra. Silicon carbide hnav-tiv taus hauv ob sab phlu yog txheej tiv thaiv ua los ntawm cov khoom siv silicon carbide los tiv thaiv sab hauv ntawm cov khoom siv los ntawm hnav thiab tsim kua muag. Nws tuaj yeem ua rau ntau yam duab, xws li ceramic rings, ceramic liners, thiab lwm yam, thiab tom qab ntawd muab ntsia rau ntawm phab ntsa sab hauv ntawm cov khoom siv xws li cov kav dej, lub cev twj tso kua mis, thiab cov silos uas yog cov khoom siv yaig thiab kev sib txhuam.
2, Qhov zoo ntawm silicon carbide hnav-resistant hauv ob sab phlu
1. High hardness thiab super hnav tsis kam: Lub hardness ntawm silicon carbide ceramics yog siab heev, thib ob tsuas yog lub hardest pob zeb diamond nyob rau hauv cov xwm. Qhov siab tawv no ua rau nws muaj zog hnav tsis kam, muaj peev xwm tiv taus kev yaig nrawm thiab muaj zog sib txhuam ntawm cov ntaub ntawv, zoo heev rau kev pab cuam lub neej ntawm cov cuab yeej, ua rau nws yog ib qho zoo tagnrho hnav-tiv taus cov khoom siv hauv kev hnav hnyav. Piv rau lwm cov ntaub ntawv hnav-tiv taus zoo tib yam, silicon carbide hnav-tiv taus hauv ob sab phlu muaj qhov zoo ntawm kev hnav tsis kam, uas tuaj yeem txo qhov zaus ntawm cov khoom siv tu thiab hloov pauv rau cov lag luam thiab cov nqi tsim khoom qis dua.
2. Tsawg ceev thiab lub teeb yuag: Silicon carbide muaj qhov ntom ntom qis dua li cov hlau xws li hlau. Piv txwv li, qhov ceev ntawm cov tshuaj tiv thaiv sintered silicon carbide ceramics tsuas yog 3.0g / cm ³, thaum qhov ceev ntawm pressureless sintered silicon carbide ceramics yog 3.14-3.0g / cm ³. Nyob rau hauv cov ntaub ntawv ntawm tib lub ntim, qhov hnyav ntawm silicon carbide hnav-resistant hauv ob sab phlu yog sib dua, uas tsis tsuas yog yooj yim rau kev thauj mus los thiab installation, tab sis kuj txo cov neeg kho tshuab load ntawm cov khoom, ua rau cov cuab yeej ua hauj lwm yooj yim dua, thiab ua kom lub installation ntawm pipelines thiab lwm yam khoom siv kom siab dua thiab nyob deb.
3. Kev kub siab ua haujlwm: Nws muaj qhov zoo thermal stability thiab cov qauv siv lead ua tshwj xeeb ntawm silicon carbide tso cai rau nws tiv taus qhov kub thiab txias, nrog rau qhov kub thiab txias txog li 1350 ℃. Cov yam ntxwv no ua rau cov silicon carbide hnav-tiv taus hauv ob sab phlu kom muaj kev ruaj ntseg txawm tias nyob rau hauv qhov kub thiab txias ib puag ncig, tsis muaj deformation lossis kev puas tsuaj vim qhov kub thiab txias, ua rau nws haum rau ntau yam kev lag luam kub xws li metallurgy, fais fab thiab lwm yam lag luam.
4. Corrosion kuj: Silicon carbide muaj cov tshuaj ruaj khov thiab muaj peev xwm ua kom pom kev zoo corrosion nyob rau hauv lub ntsej muag ntawm ntau yam tshuaj. Txawm hais tias hauv kev thauj mus los ntawm cov kua qaub thiab alkaline muaj zog hauv kev tsim tshuaj lom neeg lossis hauv kev tiv thaiv ib puag ncig xws li kev kho dej phwj tuaj, silicon carbide hnav-tiv hauv ob sab phlu tuaj yeem tiv thaiv cov cuab yeej, tiv thaiv cov cuab yeej los ntawm kev corroded los ntawm cov khoom siv tshuaj, thiab txuas ntxiv lub neej kev pab cuam ntawm cov cuab yeej.
5. Tsis muaj zog conductivity thiab anti-static: Silicon carbide ceramics muaj qhov tsis muaj zog conductivity, uas ua rau lawv tsim nyog rau cov ntawv thov uas yuav tsum tau nruj me ntsis rau hluav taws xob zoo li qub, xws li tawg-pov thawj rhiav. Nyob rau hauv cov cheeb tsam no, hluav taws xob zoo li qub yuav ua rau muaj kev nyab xeeb loj heev, thiab kev ua haujlwm zoo li qub ntawm silicon carbide hnav-tiv taus hauv ob sab phlu tuaj yeem tiv thaiv cov hluav taws xob zoo li qub thiab ua kom muaj kev ruaj ntseg ntau lawm.
6. Ib qho yooj yim rau daim ntawv, muaj peev xwm ua cov khoom loj thiab complex zoo li tus: Silicon carbide tuaj yeem ua tiav siv cov txheej txheem xws li cov tshuaj tiv thaiv sintering, uas ua rau nws muaj txiaj ntsig zoo hauv kev tsim. Los ntawm cov txheej txheem no, cov ceramics loj loj thiab cov txheej txheem nyuaj zoo li ceramics tuaj yeem tsim tau. Qhov no txhais tau hais tias txawm tias qhov tshwj xeeb zoo li cas thiab qhov loj ntawm cov khoom siv, cov khoom siv silicon carbide hnav-tiv taus hauv ob sab phlu tuaj yeem hloov kho kom tau raws li qhov xav tau ntawm cov khoom siv sib txawv.
Silicon carbide hnav-tiv taus hauv ob sab phlu tau pom tias muaj txiaj ntsig zoo heev hauv daim ntawv thov kev lag luam vim nws qhov zoo heev. Nrog rau kev txhim kho txuas ntxiv thiab kev nce qib ntawm cov ntaub ntawv tshawb fawb, nws ntseeg tau tias silicon carbide hnav-tiv taus hauv ob sab phlu yuav siv tau rau hauv ntau qhov chaw, muab kev txhawb zog rau kev ua haujlwm zoo thiab ruaj khov ntawm kev tsim khoom. Yog tias koj txaus siab rau silicon carbide hnav-resistant hauv ob sab phlu, thov koj xav tiv tauj peb txhua lub sijhawm los tshawb nrhiav ntau cov lus zais ntawm silicon carbide ceramics ua ke.
Post lub sij hawm: Jun-02-2025