Hauv ntau lub chaw tsim khoom, qee cov raj xa dej ntsiag to ua haujlwm hnyav tshaj plaws: kub kub, muaj zog corrosion, thiab hnav siab. Lawv yog cov 'cov hlab ntsha hauv kev lag luam' uas ua kom cov khoom lag luam ruaj khov thiab ruaj khov. Niaj hnub no peb yuav tham txog qhov zoo tshaj plaws nyob rau hauv hom pipeline no -silicon carbide ceramic yeeb nkab.
Ntau tus neeg xav txog "nkig" thaum lawv hnov "ceramic". Tab sis kev lag luam silicon carbide ceramics nrhiav qhov kawg "hardness" thiab "stability". Nws hardness tsis tshua muaj siab, thiab nws hnav tsis kam deb tshaj cov hlau thiab roj hmab. Nws tuaj yeem tiv taus cov kua dej nrawm nrawm uas muaj cov khoom siv tau ntev; Cov khoom siv tshuaj muaj zog heev thiab tuaj yeem tiv taus kev yaig ntawm ntau yam muaj zog acids, muaj zog hauv paus, thiab ntsev; Nyob rau tib lub sijhawm, nws tuaj yeem ua haujlwm ruaj khov ntawm qhov kub thiab txias txog li 1350 ℃. Tsis tas li ntawd, nws muaj cov thermal conductivity zoo thiab qhov chaw du, uas yuav pab txo qis kev thauj mus los thiab kev siv zog.
Cias muab, silicon carbide ceramic raj yog tsim los daws cov teeb meem kev thauj mus los ntawm "kub, abrasive, thiab corrosive". Nyob rau hauv kev thauj mus los ntawm slag thiab mortar hauv kev lag luam xws li mining, metallurgy, thiab thermal zog, nws tuaj yeem txuas ntxiv lub neej kev pabcuam ntawm cov kav dej thiab txo qis qis rau kev hloov pauv; Hauv kev thauj mus los ntawm cov xov xwm corrosive hauv kev lag luam tshuaj lom neeg thiab kev tiv thaiv ib puag ncig, nws tuaj yeem ua kom muaj kev ruaj ntseg mus ntev thiab txo qhov kev pheej hmoo ntawm kev xau. Txawm hais tias thawj zaug peev yuav siab dua, cov txiaj ntsig mus ntev yog qhov tseem ceeb los ntawm kev pom dav dav ntawm kev txo cov txij nkawm, txo qis kev siv hluav taws xob, thiab ua kom muaj kev tsim khoom.
Kev tsim cov silicon carbide ceramic raj yog ib txoj haujlwm muag heev. Feem ntau, silicon carbide hmoov yog tov nrog ib tug me me ntawm additives los ua ib tug "ntsuab lub cev" nrog ib tug tej lub zog, thiab ces sintered nyob rau hauv high kub kom cov khoom ntom thiab tawv. Raws li kev xav tau sib txawv, cov txheej txheem sib txawv xws li cov tshuaj tiv thaiv sintering thiab pressureless sintering yuav raug saws. Rau kev yooj yim ntawm kev teeb tsa, cov kav dej tiav feem ntau yog nruab nrog cov khoom sib txuas xws li hlau flanges.
Txawm hais tias nws qhov kev ua tau zoo tshaj plaws, silicon carbide ceramic tubes tseem yog cov khoom siv ceramic uas xav tau "kev kho mob" thaum siv. Kev txhim kho thiab kev thauj mus los yuav tsum tau saib xyuas kom tsis txhob muaj kev cuam tshuam nyuaj; Ua kom muaj kev txhawb nqa txaus thiab thermal expansion nyiaj kom tsis txhob muaj cov khoom ntxiv los ntawm kev ntxhov siab sab nraud lossis kev hloov kub; Ua ntej xaiv cov ntaub ntawv, nws yog qhov zoo tshaj plaws kom muaj ib tus kws tshaj lij engineers ntsuas qhov nruab nrab, qhov kub thiab txias kom pom qhov tsim nyog tshaj plaws.
Zuag qhia tag nrho, silicon carbide ceramic raj tau ua tiav qhov kawg ntawm "hardness" thiab "stability", muab cov kev daws teeb meem txhim khu kev qha rau cov kev xav tau tshaj plaws, thiab yog qhov "tsis pom tus phab ej".
Post lub sij hawm: Oct-05-2025