Kev kho lub tshuab hluav taws xob feem ntau xav tau cov khoom siv uas tuaj yeem ntsia tau sai, txhim khu kev ntseeg tau lub zog thiab ua tau zoo nyob rau hauv siab - qhov kev pabcuam kub. Qhov no yog vim li cas ntau tus neeg yuav khoom yuav tsum xyuam xim rau cov tuam txhab uas tsis muaj cov cement castable thaum npaj cov kev kho refractory lossis kev kho thaum muaj xwm txheej ceev.
Tsawg cement castable yog dav siv nyob rau hauv industrial furnaces, kilns, boilers, incinerators, ladles thiab lwm yam thermal khoom. Piv nrog cov pa castables,qis cement castablefeem ntau muaj tsawg calcium aluminate cement thiab siv cov hmoov zoo thiab cov khoom ntxiv los txhim kho kev ua haujlwm. Cov qauv no tuaj yeem txhawb nqa lub zog zoo dua, txo qhov porosity thiab txhim kho siab - qhov kub thiab txias thaum txhim kho kom zoo.
Rau cov neeg yuav khoom, thawj kauj ruam hauv kev ntsuam xyuas qis cement castable manufacturers yog kom nkag siab txog thaj chaw thov. Ib qho castable siv rau kev kho cua sov yuav ntsib kev puas tsuaj, thermal shock, slag nres, tshuaj corrosion los yog mechanical load. Tsis muaj ib qho formulation yog haum rau txhua yam mob. Cov neeg yuav khoom yuav tsum muab qhov kub thiab txias ua haujlwm, hom rauv, thaj chaw puas thiab kev teeb tsa ua ntej thov kev pom zoo zaum kawg.
Technical data tseem ceeb heev. Buyers should compare bulk density, cold crushing strength, modulus of rupture, refractoriness, permanent linear change and recommended water addition. Rau qis cement castable refractory, installation zoo muaj qhov cuam tshuam loj rau kev ua haujlwm kawg. Yog tias dej ntau ntxiv, porosity yuav nce thiab lub zog yuav txo. Ib tus neeg muag khoom txhim khu kev qha yuav tsum muab cov lus qhia meej sib xyaw thiab kev teeb tsa.
Kev ziab thiab cua sov lub sijhawm yog lwm qhov tseem ceeb. Muaj ntau lub qhov cub kho qhov tsis ua haujlwm tshwm sim tsis yog vim cov qauv castable tsis yog lawm, tab sis vim tias lub hauv ob sab yog rhuab ceev heev. Cov dej noo hauv cov castable yuav tsum tau muab tshem tawm kom zoo. Cov tuam txhab uas tsis muaj cement castable zoo yuav tsum piav qhia txog kev kho, ziab thiab cua sov- cov txheej txheem kom txo tau qhov tawg lossis tawg.
Rau qhov siab - qhov kub thiab txias, cov neeg yuav khoom yuav xav txogsiab alumina castable refractorylos yog corundum-raws li castables. Cov ntaub ntawv no tuaj yeem ua kom zoo dua refractoriness thiab hnav tsis kam, nyob ntawm daim ntawv thov. Txawm li cas los xij, cov ntsiab lus alumina siab dua tsis tau txhais tau tias kev ua tau zoo dua. Qhov kev xaiv zoo yuav tsum yog raws li qhov tseeb ntawm lub tshuab hluav taws xob thiab lub neej kev pab cuam.
Kev paub txog tus neeg siv khoom tseem ceeb vim tias kev kho qhov cub feem ntau yog lub sijhawm-sensitive. Ib lub chaw tsim khoom uas nkag siab txog qhov chaw teeb tsa tuaj yeem pab cov neeg yuav khoom xaiv cov ntim ntim loj, lub sijhawm ua haujlwm thiab teeb tsa tus cwj pwm. Rau cov neeg yuav khoom txawv teb chaws, kev sib txuas lus ceev thiab kev xa khoom ruaj khov kuj tseem ceeb. Yog tias lub sijhawm kho tau qeeb, kev tsim khoom poob qis tuaj yeem ua tus nqi ntau dua li cov khoom siv nws tus kheej.
Thaum sib piv cov cement refractory castable tsawg, cov neeg yuav khoom yuav tsum nug seb tus neeg muag khoom puas tuaj yeem txhawb nqa txoj kev sib txawv. Qee qhov haujlwm yuav tsum tau casting, thaum lwm tus yuav xav tau cov twj tso kua mis, vibration lossis phom phom. Lub castable flowability thiab teem sij hawm yuav tsum tau raws li lub site tej yam kev mob. Yog tias cov khoom siv nyuaj rau qhov chaw, cov ntaub ntawv zaum kawg yuav muaj qhov khoob lossis qhov chaw tsis muaj zog.
Lwm qhov tseem ceeb yog qhov zoo sib xws. Castables yog cov ntaub ntawv sib xyaw, yog li particle loj tis, binder zoo thiab additive tswj yuav tsum ruaj khov. Cov chaw tsim khoom zoo yuav tsum muaj cov txheej txheem tswj thiab tshuaj xyuas. Cov neeg yuav khoom yuav tsum nug cov ntaub ntawv qhia txog kev lag luam thiab, thaum tsim nyog, kuaj cov qauv ua ntej kev txiav txim ntau.
Qhov kev thov raurefractory cua sov khocov ntaub ntawv yog nce ntxiv raws li cov neeg siv kev lag luam sim ua kom lub neej ntev ntawm cov cuab yeej siv thiab txo lub sijhawm kaw. Qhov no ua rau muaj kev xav tau ntau dua rau cov neeg siv khoom uas tuaj yeem ua ke cov khoom zoo nrog cov kev taw qhia. Cov neeg yuav khoom tsis tsuas yog tab tom nrhiav lub hnab castable. Lawv xav tau kev kho kom ntseeg tau.
Zuag qhia tag nrho, kev soj ntsuam cov cement castable uas tsis tshua muaj cov tuam txhab tsim khoom yuav tsum suav nrog cov khoom siv, kev txhawb nqa kev teeb tsa, kev taw qhia kom qhuav, kev tswj kom zoo thiab kev cia siab rau kev xa khoom. Qhov tsim nyog castable tuaj yeem pab txhim kho kev kho kom zoo, txo kev tu ntau zaus thiab txhawb kev ua haujlwm ntawm lub cub tawg kom zoo dua.
