Yuav Ua Li Cas Xaiv Reactive Alumina Rau Refractory Castables: Daim Ntawv Qhia Txog Kev Yuav

Xaivreactive aluminatsis yog ib qho teeb meem ntawm kev xaiv cov hmoov zoo tshaj plaws lossis cov ntsiab lus sodium qis tshaj plaws. Hauv kev tsim cov khoom siv refractory, qhov kev hloov me me ntawm qhov loj me, thaj tsam ntawm qhov chaw, lossis cov khoom xa tuaj tuaj yeem cuam tshuam rau cov dej xav tau, ntws, ntim, sintering tus cwj pwm, thiab lub zog kawg ntawm cov castable. Vim li no, cov neeg yuav khoom uas piv cov alumina reactive tsuas yog los ntawm Al₂O₃ purity yuav saib tsis taus qee yam khoom uas tseem ceeb tshaj plaws thaum lub sijhawm tsim khoom.

Rau refractory khoom manufacturers, ib txoj hauv kev zoo dua yog xav txog cov hmoov ua ib feem ntawm tag nrho cov matrix system. Phau ntawv qhia no piav qhia txog cov ntsiab lus tseem ceeb uas yuav tsum tau txiav txim siab thiab siv HUAO activated alumina qib raws li qhov siv tau rau kev txiav txim siab yuav khoom.

 

Dab tsi ua rau Reactive Alumina txawv?

Reactive alumina feem ntau yog siv los ua ib qho zoo matrix tivthaiv hauv siab -kev ua tau zoo unshaped refractories. Nws cov khoom me me tuaj yeem sau qhov sib txawv ntawm cov alumina aggregates loj dua thiab koom nrog cov txheej txheem sintering thaum tua. Kev tshawb fawb ntawm reactive alumina qhia tau hais tias qhov loj me me thiab kev faib tawm muaj kev cuam tshuam ncaj qha rau kev ntim khoom thiab kev ua haujlwm, thaum cov qauv PSD sib txawv tuaj yeem tsim qhov sib txawv ntawm cov ntim ntim thiab kev ua haujlwm sintering.

Qhov no yog vim li cas ob lub hmoov uas zoo sib xws tshuaj purity yuav coj txawv txawv nyob rau hauv ib tug castable.

Yog li kev txiav txim siab yuav khoom zoo yuav tsum xav txog yam tsawg kawg tsib yam: tshuaj muaj pes tsawg leeg, BET thaj chaw, D50, D90, thiab particle tis.

 

Vim li cas Na₂O Cov Ntsiab Lus Tseem Ceeb?

Na₂O yog ib qho ntawm thawj cov cim qhia tshuaj refractory buyers yuav tsum xyuas.

Nyob rau hauv siab -kub refractory systems, cov ntsiab lus alkali ntau dhau tuaj yeem cuam tshuam rau siab - tus cwj pwm kub thiab tej zaum yuav tsis xav tau thaum lub formulation xav tau alumina matrix ruaj khov heev. Tsawg-soda reactive alumina yog li feem ntau xaiv rau kev thov castables thiab kev siv ceramics. Kev lag luam reactive alumina qib ntawm kev ua lag luam feem ntau tswj Na₂O nyob rau hauv qhov qis qis vim li no.

HUAO HA500, piv txwv li, muaj Na₂O cov ntsiab lus ntawm 0.08%, nrog rau qhov siab tshaj plaws ntawm 0.10%. Nws raug Fe₂O₃ yog 0.02%, SiO₂ yog 0.03%, MgO yog 0.07%, thiab CaO yog 0.02%.

Rau cov neeg yuav khoom, lub ntsiab lus tseem ceeb tsis yog tsuas yog thov "tso dej qab zib," tab sis txhawm rau txheeb xyuas qhov ua tau zoo thiab txheeb xyuas tus neeg muag khoom cov khoom sib xws.

 

Tsis txhob xaiv D50 yam tsis saib D90

D50 feem ntau yog thawj zaug - tus lej loj uas tau pom nyob rau hauv daim ntawv qhia kev. Nws qhia qhov nruab nrab particle loj, tab sis nws tsis piav txog tag nrho cov kev faib tawm.

HUAO HA500 muaj qhov raug D50 ntawm 0.5 μm thiab D90 ntawm 2.0 μm. Qhov kev sib xyaw ua ke no muab cov ntaub ntawv tseem ceeb rau tus neeg yuav khoom ntau dua li D50 ib leeg vim tias nws qhia tau hais tias cov khoom seem zoo dua thiab coarser faib li cas.

Cov lus qhia HUAO tau muab los kuj piav qhia vim li cas cov qib sib txawv tau tsim los ntawm kev siv ib qho hmoov rau txhua qhov kev tsim. HA180 yog teev nrog ib tug raug D50 ntawm 1.8 μm thiab D90 ntawm 4.5 μm, thaum HA150 muaj ib tug raug D50 ntawm 1.5 μm thiab D90 ntawm 5.0 μm. HA120 yog finer, nrog ib tug raug D50 ntawm 1.2 μm thiab D90 ntawm 5.5 μm.

Cov kev sib txawv no tsis yog tus lej xwb. Lawv tuaj yeem hloov pauv cov hmoov zoo sib cuam tshuam li cas nrog cov txheej txheem sib sau ua ke thiab yuav tsum muaj dej ntau npaum li cas los yog dispersant thaum sib tov.

 

Singlet, Doublet, lossis Multimodal txhais li cas?

Particle faib yog lwm qhov ntsuas uas tsim nyog tau txais kev saib xyuas ntau dua thaum lub sijhawm yuav khoom.
Singlet los yog unimodal hmoov muaj ib tug predominant particle loj cov pejxeem. HUAO HA500 tau txiav txim siab kom muaj kev faib tawm tsis zoo. Hauv qhov sib piv, cov lus muab HUAO txheeb xyuas HA150 ua multimodal thiab HA120 ua bimodal.
Qhov kev xaiv nyob ntawm tus qauv, tsis yog qhov kev faib tawm suab technically superior. Ib lub ncov reactive alumina tuaj yeem muab kev ua haujlwm siab, thaum ntau lub ncov siab tuaj yeem muab qhov sib txawv ntawm qhov zoo -grained reactivity thiab filling efficiency. Kev tshawb fawb pom tau hais tias piv rau qhov nqaim unimodal systems, dav dua los yog multimodal distributions tuaj yeem ua rau kom ntim ceev.
Yog li ntawd, cov tuam txhab tsim khoom siv refractory yuav tsum xaiv qhov kev faib khoom uas tsim nyog rau cov qauv matrix uas twb muaj lawm, tsis yog hloov cov qib tsuas yog vim D50 ntawm lwm yam khoom me dua.

 

BET Surface Area tseem ceeb npaum li cas?

BET deg cheeb tsam yog ze ze rau tus nqi ntawm particle nto muaj rau kev sib cuam tshuam. HUAO HA500 muaj ib tug raug BET nto thaj tsam ntawm 7.5 m² / g, nrog ib tug ntau yam ntawm 6.5-8.5 m² / g.

Qhov chaw siab dua tuaj yeem ua rau muaj zog reactivity, tab sis nws kuj tseem tuaj yeem ua rau cov hmoov xav tau rau cov kua los yog dispersant. Yog li ntawd, "siab dua BET" yuav tsum tsis txhob muab txhais ua "zoo dua."

Cov lus nug tswv yim yog seb thaj chaw saum npoo puas ua haujlwm nrog cov neeg siv khoom tsim thiab kev sib xyaw ua ke. Yog tias cov hmoov ua rau cov dej xav tau ntau dhau los yog ua rau muaj kev tswj xyuas tsis yooj yim, nws qhov kev xav tsis zoo yuav tsis txhais mus rau hauv kev ua tau zoo castable.

 

Sib piv Qib rau Daim Ntawv Thov

Ua ntej xaj, cov neeg yuav khoom yuav tsum piav qhia txog daim ntawv thov refractory tiag tiag.

Rau qis-cement lossis ultra-qis- cement castables, particle packing, rheology, water demand, and fired strength yog ib qho tseem ceeb tshwj xeeb. Reactive alumina kuj tseem siv rau hauv tus kheej- ntws castables, hlau- cov ntaub ntawv khiav, phom sib tov, purging plugs, thiab lwm yam siab -kub refractory systems.

Yog hais tias lub formulation twb muaj ib tug loj npaum li cas ntawm cov hmoov zoo, ib tug siab heev -BET qib tej zaum yuav tsis yog ib qho yooj yim xaiv. Hloov pauv, yog tias lub matrix xav tau kev ua kom muaj zog sintering thiab cov khoom ua kom zoo dua, cov qib zoo dua qub yuav tsim nyog xav txog.

Lo lus nug yog yog li ntawd tsis yog "Qeb twg yog qhov zoo tshaj plaws?" tab sis "Qeb twg muab qhov sib npaug zoo tshaj rau kuv cov qauv?"

 

Dab tsi Koj Yuav Tsum Nug Reactive Alumina Supplier?

Qhov kev thov hais kom muaj txiaj ntsig yuav tsum suav nrog ntau dua Al₂O₃ cov ntsiab lus thiab tus nqi. Nug rau:

• Na₂O, Fe₂O₃, SiO₂, MgO and CaO
• BET qhov chaw
• D50 thiab D90
• Particle faib hom
• Txoj kev sim siv rau particle - ntsuas qhov loj
• Hom thiab specification txwv
• Pom zoo daim ntawv thov
• Batch-rau-batch sib xws
• Ntim thiab cia tej yam kev mob
• Kev pab txhawb nqa lossis kev pab tsim

Cov ntaub ntawv no ua rau cov neeg muag khoom sib piv tau yooj yim dua thiab txo qhov kev pheej hmoo ntawm kev xaiv cov hmoov uas zoo li ntxim nyiam ntawm daim ntawv tab sis ua tau zoo hauv qhov tseeb castable.

 

Xaus

Reactive aluminakev xaiv yog ib feem me me ntawm kev yuav khoom refractory, tab sis nws tuaj yeem muaj txiaj ntsig zoo rau qhov kawg formulation. Na₂O tswj cov tshuaj huv huv, D50 thiab D90 piav qhia txog qhov sib piv - qhov loj me, BET muab cov ntaub ntawv hais txog kev ua haujlwm saum npoo av, thiab cov khoom xa tawm cuam tshuam li cas cov hmoov haum rau hauv matrix.

HUAO HA500, nrog ib tug raug BET ntawm 7.5 m² / g, D50 ntawm 0.5 μm, D90 ntawm 2.0 μm, thiab singlet particle tis, muab ib tug piv txwv ntawm ib tug zoo reactive alumina tsim rau xav tau refractory matrices. HA180, HA150 thiab HA120 cov ntaub ntawv qhia hauv HUAO cov lus qhia ntxiv qhia tau tias cov qauv PSD sib txawv tuaj yeem ua rau cov qauv tsim sib txawv.

Rau cov neeg yuav khoom, txoj kev ntseeg siab tshaj plaws yog pib nrog lub hom phiaj kev ua haujlwm thiab kev ua haujlwm ntawm cov castable, thiab tom qab ntawd xaiv cov hmoov raws li. Yog tias qhov sib xyaw, ntim khoom, kev tua tus cwj pwm, thiab kev tsim khoom sib xws tuaj yeem txhim kho, ces qib kim dua me ntsis yuav tsim nyog. Qhov no feem ntau yog qhov tseeb tus nqi ntawm reactive alumina ua pom - tsis yog tus lej ntawm cov ntaub ntawv, tab sis qhov sib xws ntawm cov hmoov los ntawm cov khoom sib xyaw rau cov khoom siv refractory tiav.