Hauv kev lag luam, cov kav dej yog cov khoom tseem ceeb rau kev thauj ntau yam xov xwm, thiab lawv cov kev ua tau zoo cuam tshuam ncaj qha rau kev ua haujlwm zoo thiab kev nyab xeeb. Nrog rau kev nce qib tas mus li ntawm cov ntaub ntawv tshawb fawb,cov yeeb nkab silicon carbidetau tshwm sim thiab maj mam tshwm sim hauv ntau lub lag luam nrog ntau yam khoom zoo heev.
Silicon carbide, hais txog cov khoom sib xyaw, yog ib qho sib xyaw ua ke ntawm ob lub ntsiab lus: silicon (Si) thiab carbon (C). Los ntawm qhov pom ntawm lub microscopic, nws cov atoms tau sib txuas ua ke los ntawm covalent bonds, tsim cov qauv lattice ruaj khov thiab txiav txim siab. Cov qauv tshwj xeeb no muab cov kav dej silicon carbide nrog ntau yam khoom zoo heev.
Ua ntej, cov kav dej silicon carbide muaj kev tiv thaiv kev hnav zoo heev. Hauv qee qhov xov xwm uas xav tau kev thauj cov khoom khov, xws li kev thauj cov hmoov thee hauv kev tsim hluav taws xob thermal thiab kev thauj cov ore slurry hauv kev lag luam mining, cov kav dej ib txwm yuav sai sai ntsib kev hnav, thinning, thiab txawm tias perforation nyob rau hauv qhov kev puas tsuaj ntawm cov khoom me me, ua rau muaj kev hloov pauv ntau zaus, uas tsis tsuas yog ua rau cov nqi nce ntxiv tab sis kuj cuam tshuam rau kev tsim khoom. Cov kav dej silicon carbide, vim lawv cov yam ntxwv siab hardness, tuaj yeem tiv taus kev puas tsuaj thiab kev hnav ntawm cov khoom me me, ua rau lub neej kev pabcuam ntawm cov kav dej ntev dua thiab txo qhov zaus ntawm kev saib xyuas thiab hloov pauv.
Qhov thib ob, qhov kub thiab txias ntawm cov kav dej silicon carbide yog qhov zoo heev. Hauv qhov chaw kub thiab txias, lub zog ntawm cov kav dej hlau ib txwm yuav txo qis, thiab txawm tias deformation, softening, thiab lwm yam teeb meem yuav tshwm sim. Piv txwv li, hauv kev lag luam kub siab xws li metallurgy thiab iav tsim, qhov kub thiab txias feem ntau tuaj yeem ncav cuag ntau pua lossis txawm tias ntau txhiab degrees Celsius. Hauv qab qhov kub thiab txias no, cov kav dej silicon carbide tseem tuaj yeem tswj tau cov khoom siv lub cev thiab tshuaj lom neeg ruaj khov, ua kom ntseeg tau tias cov kav dej ua haujlwm ib txwm thiab tswj kev tsim khoom txuas ntxiv mus.
Thaum kawg, cov kav dej silicon carbide kuj muaj kev tiv thaiv corrosion zoo. Hauv cov txheej txheem ntawm kev tsim tshuaj lom neeg, nws feem ntau cuam tshuam nrog kev thauj mus los ntawm ntau yam corrosive media xws li cov kua qaub muaj zog thiab alkalis. Cov kav dej ib txwm muaj kev xeb, ua rau muaj kev xau nruab nrab, uas tsis yog tsuas yog pov tseg cov peev txheej tab sis kuj tseem yuav ua rau muaj kev phom sij kev nyab xeeb. Cov kav dej silicon carbide, nrog lawv cov tshuaj lom neeg ruaj khov, tuaj yeem tiv taus kev yaig ntawm ntau yam tshuaj lom neeg, ua kom muaj kev nyab xeeb thiab ruaj khov ntawm kev tsim khoom.
Cov kav dej silicon carbide, nrog rau lawv ntau yam zoo xws li kev tiv taus hnav, kev tiv taus kub siab, thiab kev tiv taus corrosion, maj mam dhau los ua qhov nyiam tshiab hauv kev lag luam pipeline, muab kev lees paub zoo rau kev tsim khoom zoo thiab ruaj khov hauv ntau yam lag luam. Nrog rau kev txhim kho tas mus li ntawm thev naus laus zis thiab kev txhim kho ntxiv ntawm cov nqi, peb ntseeg tias cov kav dej silicon carbide yuav muaj ntau yam kev siv thiab kev cia siab dav dua yav tom ntej.
Lub sijhawm tshaj tawm: Lub Xya Hli-04-2025