Dab tsi yog cov lus qhia xaiv rau kev siv refractory castables?
Raws lirefractory castablestau siv ntau thiab ntau dua, muaj tseeb qee txoj hauv kev thiab cov tswv yim xaiv cov khoom siv los yog qhov ntsuas ntawm castables siv. Topower cov neeg ua haujlwm muag yuav qhia rau koj qee cov lus qhia rau kev xaiv castables.
1. Muaj ntau qhov sib txawv ntawm refractories castables
Refractory castables muab faib ua nruab nrab, acidic thiab alkaline, nrog rau hnyav thiab lub teeb. Heavy refractories castables feem ntau yog siv nyob rau hauv cov txheej txheem ua hauj lwm, thaum lub teeb castables yog siv nyob rau hauv lub rwb thaiv tsev txheej rau rwb thaiv tsev.
Yog hais tias nws yog ib tug nruab nrab high-aluminium series refractory castable, qhov Performance index ntawm castable yuav siv tau yog txiav txim raws li qhov kub thiab yaig ntawm lub qhov cub hauv ob sab phlu. Yog tias qhov ntsuas kub qis dua 1200 degree, av nplaum castables tuaj yeem siv tau. Yog tias qhov kub siab tshaj 1250 degree, high-aluminium castables yuav tsum tau siv. Yog tias qhov ntsuas kub ua haujlwm siab tshaj 1350 degree, corundum refractory castables yuav tsum tau siv. Yog tias corrosiveness muaj zog heev, chrome corundum castables yuav tsum tau siv. Yog tias hnav hnyav, hnav-resistant refractories castables yuav tsum tau siv. Lub sijhawm cia ntawm cov khoom nruab nrab yog 6 lub hlis. Nco ntsoov khaws cov ntaub ntawv raw thiab cov ntaub ntawv sib cais.
2. Siv acidic castables nyob rau hauv acidic cua
Yog hais tias lub castable yog siv nyob rau hauv ib tug acidic cua, acidic castables yuav tsum tau siv. Acid castables yog ua ke nrog ob txoj hlua khi, ib qho yog iav dej thiab lwm qhov yog phosphoric acid. Yog hais tias qhov kub tsis tshaj qhov acidic cua ntawm 1250 degree, acidic castables bonded nrog dej iav yuav siv tau. Yog tias qhov kub thiab txias dhau lawm, cov kua qaub-resistant castables bonded nrog phosphoric acid tuaj yeem siv tau.
3. Siv magnesium refractory castables nyob rau hauv alkaline cua
Yog tias castable siv nyob rau hauv qhov chaw alkaline, refractory magnesia castables yuav tsum tau siv. Yog hais tias corrosion thiab hnav tsis kam, refractory magnesia-aluminium castables los yog magnesia-chromium castables yuav tsum tau siv. Yog tias qhov kub thiab txias siab dhau lawm, magnesium castables uas muaj lub ntiajteb txawj nqus tshwj xeeb lossis magnesia castables nrog cov ntsiab lus siab tuaj yeem siv. Txawm li cas los xij, koj yuav tsum tau them sai sai rau qhov khaws cia ntawm magnesia castables thiab tsis tuaj yeem khaws cia hauv huab cua, vim tias magnesia castables tsis tuaj yeem raug dej, txwv tsis pub lawv yuav pulverize.
4. Siv lub teebrwb thaiv tsev castablesrau txheej rwb thaiv tsev.
Yog hais tias lub castable yog siv rau txheej rwb thaiv tsev, nws kuj nyob ntawm qhov kub thiab txias. Yog tias qhov kub thiab txias tsis tshua muaj, cov khoom siv hluav taws xob zoo tib yam tuaj yeem siv tau. Yog tias qhov kub thiab txias heev, lub teeb yuag high-aluminium lossis alumina hollow pob lub teeb yuag castables yuav tsum tau siv. Tsuas yog siv nws ua ib txheej rwb thaiv tsev. Koj kuj yuav tsum tau them sai sai rau qhov khaws cia ntawm lub teeb yuag castables. Lawv tsis tuaj yeem muab tso ua ke nrog cov ntaub ntawv uas muaj corrosive heev, txwv tsis pub lawv yuav ua rau muaj kev puas tsuaj rau lub teeb yuag castables.
5. Qhov kev xav tau qis rau lub plhaub ntawm lub cub tawg tuaj yeem daws tau los ntawm ob txheej txheej rwb thaiv tsev.
Yog hais tias qhov yuav tsum tau rau lub plhaub ntawm lub cub tawg yog tsawg, ob txheej txheej rwb thaiv tsev yuav tsum tau siv los daws qhov teeb meem, uas yog, ceramic fiber ua ntej thiab tom qab ntawd lub teeb yuag rwb thaiv tsev refractory castables, los yog ceramic fiber blocks tuaj yeem siv ncaj qha. Txawm li cas los xij, yog tias muaj qhov xav tau hnyav rau thaj tsam rwb thaiv tsev, siv lub ntiajteb txawj nqus ntawm 0.6-0.8 rau txheej rwb thaiv tsev. Yog hais tias cov flue yog siv ncaj qha rau ntawm txheej ua hauj lwm, siv lub teeb castable nrog ib tug tshwj xeeb gravity ntawm 1.3-1.5 rau hauv ob sab phlu. Yog tias nws yog ib qho chaw tiv taus, koj yuav tsum xaiv siv lub teeb yuag acid-resistant castable li hauv ob sab phlu.
Nyob rau hauv luv luv, tsis muaj teeb meem dab tsi ntawm refractory castable yog xaiv, lub castable yuav tsum tau xaiv raws li cov kev pab cuam, hauv ob sab phlu huab cua, thiab kub.
