Hauv ntau lub Hoobkas, qee cov kav dej ua haujlwm ntsiag to ua haujlwm hnyav tshaj plaws: kub heev, xeb heev, thiab hnav ntau. Lawv yog 'cov hlab ntsha hauv kev lag luam' uas ua kom muaj kev tsim khoom tas mus li thiab ruaj khov. Hnub no peb yuav tham txog qhov zoo tshaj plaws hauv hom kav dej no -silicon carbide ceramic yeeb nkab.
Muaj coob tus neeg xav txog "brittle" thaum lawv hnov "ceramic". Tab sis cov khoom siv silicon carbide ceramics ua lag luam nrhiav qhov "hardness" thiab "stability" kawg. Nws qhov hardness siab heev, thiab nws qhov kev tiv thaiv hnav ntau dua li cov hlau thiab roj hmab. Nws tuaj yeem tiv taus kev yaig dej ceev ceev uas muaj cov khoom khov kho ntev; Cov khoom siv tshuaj lom neeg ruaj khov heev thiab tuaj yeem tiv taus kev yaig ntawm ntau yam kua qaub muaj zog, cov hauv paus muaj zog, thiab ntsev; Tib lub sijhawm, nws tuaj yeem ua haujlwm ruaj khov ntawm qhov kub siab thiab tiv taus qhov kub txog li 1350 ℃. Tsis tas li ntawd, nws muaj kev ua haujlwm thermal zoo thiab qhov chaw du, uas pab txo qhov kev tiv thaiv kev thauj mus los thiab kev siv hluav taws xob.
Hauv kev hais yooj yim, cov raj xa dej silicon carbide ceramic yog tsim los daws cov teeb meem kev thauj mus los ntawm "kub, abrasive, thiab corrosive". Hauv kev thauj mus los ntawm slag thiab mortar hauv kev lag luam xws li kev tsuas, metallurgy, thiab thermal fais fab, nws tuaj yeem ntev lub neej kev pabcuam ntawm cov kav dej thiab txo lub sijhawm downtime rau kev hloov pauv; Hauv kev thauj mus los ntawm corrosive media hauv kev lag luam tshuaj lom neeg thiab kev tiv thaiv ib puag ncig, nws tuaj yeem ua kom muaj kev ua haujlwm ruaj khov mus sij hawm ntev thiab txo qhov kev pheej hmoo ntawm kev xau. Txawm hais tias kev nqis peev thawj zaug yuav siab dua, cov txiaj ntsig mus sij hawm ntev yog qhov tseem ceeb los ntawm kev pom dav dav ntawm kev txo kev saib xyuas, txo kev siv hluav taws xob, thiab ua kom muaj kev tsim khoom.
Kev tsim cov raj silicon carbide ceramic yog ib txoj haujlwm nyuaj heev. Feem ntau, cov hmoov silicon carbide yog sib xyaw nrog me ntsis cov khoom ntxiv los tsim "lub cev ntsuab" nrog qee lub zog, thiab tom qab ntawd sintered ntawm qhov kub siab kom ua rau cov khoom ntom thiab tawv. Raws li qhov xav tau sib txawv, cov txheej txheem sib txawv xws li kev sib xyaw ua ke thiab kev sib xyaw ua ke tsis muaj siab yuav raug saws. Rau qhov yooj yim ntawm kev teeb tsa, cov kav dej tiav lawm feem ntau yog nruab nrog cov khoom sib txuas xws li cov hlau flanges.
Txawm hais tias nws muaj kev ua tau zoo dua, cov raj silicon carbide ceramic tseem yog cov khoom siv ceramic uas xav tau "kev kho mob maj mam" thaum siv. Kev teeb tsa thiab kev thauj mus los yuav tsum tau ua tib zoo saib xyuas kom tsis txhob muaj kev cuam tshuam hnyav; Xyuas kom muaj kev txhawb nqa txaus thiab kev them nyiaj thermal nthuav dav kom tsis txhob muaj cov khoom thauj ntxiv los ntawm kev ntxhov siab sab nraud lossis kev hloov pauv kub; Ua ntej xaiv cov ntaub ntawv, nws yog qhov zoo tshaj plaws kom muaj tus kws tshaj lij soj ntsuam qhov nruab nrab, kub, thiab siab kom pom qhov kev daws teeb meem zoo tshaj plaws.
Zuag qhia tag nrho, cov raj xa dej silicon carbide ceramic tau ua tiav qhov kawg ntawm "kev tawv" thiab "kev ruaj khov", muab cov kev daws teeb meem txhim khu kev qha rau cov xwm txheej xa khoom uas xav tau tshaj plaws, thiab yog cov "neeg ua siab loj uas tsis pom".
Lub sijhawm tshaj tawm: Lub Kaum Hli-05-2025