Nyob rau hauv cov ces kaum ntawm cov chaw ua haujlwm hauv Hoobkas thiab kev thauj mus los hauv kev tsuas, muaj ib qho "lub luag haujlwm" tseem ceeb tab sis yooj yim tsis quav ntsej - cov kav dej xa khoom. Lawv thauj cov zaub mov, cov av nplaum, thiab cov khoom siv tshuaj lom neeg txhua hnub, thiab lawv cov phab ntsa sab hauv yeej ib txwm raug kev sib txhuam thiab kev cuam tshuam los ntawm cov ntaub ntawv. Raws li lub sijhawm dhau mus, lawv yooj yim hnav thiab rhuav, xau, uas tsis tsuas yog cuam tshuam rau kev tsim khoom tab sis kuj xav tau kev saib xyuas kim thiab hloov pauv. Cov kav dej silicon carbide uas tiv taus kev hnav uas peb yuav tham txog hnub no zoo li muab ib txheej ntawm "cov hlau tsis pom kev" rau ntawm cov kav dej ib txwm muaj, daws qhov teeb meem loj no ntsiag to.
Ib tug neeg yuav nug tias, dab tsi yogsilicon carbideQhov tseeb, nws tsis yog ib yam khoom paub tsis meej. Yeej yog ib yam khoom uas tsim los ntawm cov pa roj carbon thiab silicon, uas muaj qhov nyuaj thib ob tsuas yog pob zeb diamond xwb.
Piv rau phab ntsa sab hauv ntawm cov kav dej ib txwm muaj, qhov nyuaj ntawm silicon carbide hauv ob sab yog ntau zaus dua. Thaum cov hlau ntse thiab cov xuab zeb ntws ceev ceev ntxuav tawm ntawm phab ntsa sab hauv, silicon carbide tuaj yeem ua haujlwm zoo li lub tsho tiv thaiv kom thaiv kev sib txhuam thiab tiv thaiv kom tsis txhob khawb lossis lwj yooj yim. Txawm tias rau kev thauj mus los ntev ntawm cov khoom siv hnav siab, nws phab ntsa sab hauv tuaj yeem nyob tiaj tus thiab du, tsis tuab dua lossis tawg vim hnav, ua rau lub neej ua haujlwm ntawm cov kav dej ntev dua.
Ntxiv rau qhov tsis kam hnav, nws kuj muaj ib qho kev txawj zais cia - 'tuaj yeem tiv taus kev tsim kho'. Hauv kev tsim khoom lag luam, cov ntaub ntawv xa mus feem ntau tsis yog "av", tab sis kuj tseem tuaj yeem nqa qhov kub siab thiab acid-base corrosion. Piv txwv li, hauv kev lag luam tshuaj lom neeg, qee cov ntaub ntawv muaj zog corrosiveness, thiab cov kab hauv cov kav dej ib txwm yooj yim corroded thiab tev tawm; Hauv kev lag luam metallurgical, cov ntaub ntawv kub siab tuaj yeem ua rau deformation thiab tsis ua haujlwm ntawm cov kab hauv. Cov kab hauv silicon carbide tuaj yeem tiv taus qhov kub ntawm ntau pua degrees Celsius thiab tiv taus kev yaig ntawm feem ntau acidic thiab alkaline media, tswj kev ua haujlwm ruaj khov hauv txhua qhov "ib puag ncig hnyav".
Rau cov lag luam, cov txiaj ntsig los ntawm cov kab me me no yog qhov pom tseeb heev: tsis tas yuav kaw thiab hloov cov kav dej ntau zaus, txo qhov kev poob los ntawm kev cuam tshuam kev tsim khoom; Tsis tas yuav nqis peev ntau zaus rau cov nqi kho, nws tuaj yeem txuag tau nyiaj ntau hauv lub sijhawm ntev; Qhov tseem ceeb tshaj, nws tuaj yeem ua kom muaj kev thauj khoom zoo thiab zam kev phom sij kev nyab xeeb thiab teeb meem ib puag ncig los ntawm kev xau dej.
Txij li cov khoom siv kav dej uas tsis pom tseeb mus rau "cov cuab yeej tiv taus kev hnav" uas tiv thaiv kev tsim khoom lag luam, qhov tseem ceeb ntawm silicon carbide hnav-resistant pipeline lining yog nws lub peev xwm "daws cov teeb meem loj hauv cov ntsiab lus me me". Rau cov lag luam uas nrhiav kev tsim khoom zoo thiab ruaj khov, kev xaiv nws tsis yog tsuas yog kev txhim kho cov khoom siv xwb, tab sis kuj yog kev txiav txim siab mus sij hawm ntev rau kev ua haujlwm zoo thiab kev tswj tus nqi.
Lub sijhawm tshaj tawm: Cuaj hlis-16-2025