Dab tsi yog cov ntsiab lus tseem ceeb ntawm cov txheej txheem ntawm kev tsim khoom fused zirconium mullite?
Cov khoom siv raw rau kev tsim cov fused zirconium mullite cov khoom yog bauxite, mos av nplaum, thiab zircon, thiab cov mineralizer yog magnesium oxide. Cov ntaub ntawv raw li hais saum toj no yog ntxiv nrog dej hauv ib qho piv txwv los ua cov khoom siv av nkos, uas yog nias, qhuav thiab raug rho tawm haujlwm rau hauv qhov khoob. Cov khoom siv raw piv yog: raw bauxite 64.5 feem pua, av nplaum 23 feem pua, zircon 12.5 feem pua, dej 4.5 ~ 5.5 feem pua. Cov hluav taws kub hnyiab tau tawg mus txog 40mm thiab yaj hauv peb theem hluav taws xob arc rauv. Kev ua haujlwm voltage yog 110 ~ 140V, ua haujlwm tam sim no yog 1100 ~ 1500A, thiab lub sijhawm yaj yog 2h. Thaum melting, thawj zaug kis 2 ~ 5 hli coke rau hauv qab ntawm lub cub hluav taws xob pib lub arc, ntxiv qhov tawg tag, ces ntxiv MgO mineralizer thiab hmoov los kho cov tshuaj muaj pes tsawg leeg ntawm cov khoom. Cov khoom tuaj yeem raug nrum tom qab melted ntawm 1780 ~ 1800C. Txhawm rau kom ntseeg tau tias qhov ntom ntom ntawm cov khoom yog ntau dua 2.85g / cm ', ntxiv cov dej ntxiv tuaj yeem nqa tawm.
Cov khoom cam khwb cia yuav tsum tau txias maj mam thiab nruj me ntsis raws li qhov txias txias. Lub cev thiab tshuaj lom neeg cov khoom ntawm fused zirconium mullite cov khoom yog raws li nram no: Al2O: 60 feem pua, SiO24 feem pua, ZrO27 ~ 9 feem pua, flux 7.5 feem pua; bulk ceev 2.85g / cm3, compressive zog ntawm chav tsev kub 200MPa.
Dab tsi yog cov ntsiab lus ntawm kev tsim fused thiab nrum AZS cib?
Cov khoom siv raw rau kev tsim cov fused thiab nrum AZS cib yog alumina lub teeb sinter, zircon thiab khib nyiab clinker.
Alumina hmoov yog maj mam raug rho tawm haujlwm ntawm 100 degree, thiab cov hmoov zoo tsawg dua 0,088mm suav rau 50 ~ 70 feem pua. Cov dej noo tsis tshaj 2 feem pua. Tuav cov khib nyiab clinker ntawm tib cov khoom mus rau qhov xav tau particle loj rau kev siv. Nws cov khoom xyaw yog raws li nram no: 50.3 feem pua ntawm lub teeb-hlwb alumina hmoov, 46.1 feem pua ntawm zircon concentrate, 2.2 feem pua ntawm sodium carbonate, 1.4 feem pua ntawm borax, thiab 20 mus rau 30 feem pua ntawm clinker. Cov hmoov yog yaj nyob rau hauv peb-theem hluav taws xob arc rauv, qhov ua hauj lwm tam sim no yog 2200A, qhov ua hauj lwm voltage yog 180V, thiab melting kub yog 1800 ~ -1840C. Cov yaj yog nchuav rau hauv cov pwm pwm, thiab qhov ntom ntom yog 3.4g / em *, thiab cov ntsiab lus ZrO2 yog ntau dua lossis sib npaug rau 33 feem pua AZS fused cam khwb cia bricks.
Dab tsi yog cov ntsiab lus tseem ceeb ntawm kev ua haujlwm hauv kev tsim cov AzS raug rho tawm haujlwm cib?
Cov khoom siv raw ua rau AZS raug rho tawm haujlwm cib yog zircon, muaj alumina (los yog super siab alumina bauxite).
Lub zircon thiab industrial alumina hmoov tau npaj raws li 6; 4, ntxiv rau 2% MgO. Sib tsoo cov pob zeb nrog vibrating zeb kom tsawg dua 0.04mm rau kev siv tom qab. Tom qab sib tov thiab kneading cov khoom npaj, cov blanks yog nias rau ntawm 300t kev sib txhuam cib xovxwm, thiab cov clinker yog calcined ntawm 1400-1500 degree . Lub clinker yog crushed, pulverized, zoo li tus thiab qhuav thiab raug rho tawm haujlwm ntawm 1600 degree.
Vim li cas ho cam AZS cib tawg? Yuav tiv thaiv kev tawg li cas?
Thaum AI2O3 nyob rau hauv cov khoom siv raw khoom ntau tshaj 30 feem pua, cov khoom yog ib qho nyuaj rau yaj, uas yuav ua rau kom lub cracking tus nqi ntawm cov casting. Yog li ntawd, cov ntsiab lus Al2O3 yuav tsum tau ntsuas ua ntej cov khoom siv raw tau muab tso rau hauv qhov cub, kom tsis pub dhau 30 feem pua.
Cov txheej txheem ntawm cov khoom xyaw thaum lub sij hawm melting ncaj qha cuam tshuam rau melting. Nws yog ib qho nyuaj rau yaj los ntawm ib qho kev pub mis, ua
Cov khoom yog yooj yim tawg; ib qho me me ntawm kev pub mis zoo dua.
Thaum lub melting kub yog siab dhau los yog tsawg dhau, tus nqi tawg ntawm cov khoom yog siab thaum nws solidifies. Nyob rau hauv qhov tseeb ntau lawm, theem nrab smelting yog siv, uas yog, cov khoom yog melted nyob rau hauv melting kub, thiab ces lub zog yog nce thiab refining kub yog nce, uas yuav txo tau cracking thaum cov khoom yog solidified.
Thaum lub casting kub siab dhau lawm, tus nqi shrinkage nce thaum lub sij hawm solidification, qhov kub ntawm qhov sib txawv ntawm sab hauv thiab sab nraud ntawm cov khoom nce, thiab cov khoom yog yooj yim tawg. Yog li ntawd, ua ntej casting, lub arc nres rau 3- ~ 5min, thiab cov refining kub yog txo mus rau lub casting kub (txog 17600 degree) ua ntej casting, uas yuav txo tau cov khoom tawg. Tsis tas li ntawd, cov khoom yuav tsum tau txias nyob rau hauv ib tug incubator. Qhov kub ntawm nkag mus rau hauv lub thawv yuav tsum tsis txhob qis dhau. Piv txwv li, qhov kub ntawm 33 degree fused zirconium corundum nkag mus rau hauv lub thawv yog 1200 degree, thiab qhov txias txias yuav tsum qeeb, thiab qhov kub ntawm qhov tawm hauv lub thawv yuav tsum tsis txhob siab tshaj 300 degree. Qhov no yog qhov zoo rau kev txo cov khoom tawg.
