Aluminium Oxide Crucible AL2O3 Crucible
kev nthuav qhia khoom
Aluminium oxide crucible feem ntau hu ua corundum crucible, tib neeg feem ntau yuav alumina cov ntsiab lus hauv ntau dua 95% crucible hu ua corundum crucible.Corundum crucible muaj zog melting kuj, kub tsis kam, acid thiab alkali tsis kam, txias thiab kub tsis kam, tshuaj corrosion kuj.Nws yog tsim rau qee yam tsis muaj zog alkaline xws li anhydrous Na2CO3 raws li cov qauv flux melting, tab sis tsis yog rau Na2O2, NaOH, thiab lwm yam. Muaj zog alkaline tshuaj thiab acidic tshuaj siv raws li flux melting kuaj ... alumina crucible nrog 99.70% purity muaj kub zoo. rwb thaiv tsev thiab mechanical zog nyob rau hauv redox cua ntawm 1650 ℃ -1700 ℃, nrog siab tshaj plaws kub ntawm 1800 ℃ nyob rau hauv luv luv lub sij hawm.Raws li kev thov, alumina crucibles muaj nyob rau hauv ntau qhov ntau thiab tsawg.
Lub ntsiab nta
Cov yam ntxwv tseem ceeb ntawm alumina ceramic crucible: kub tsis kam ntawm li 1200 degrees, haum rau K2S207 thiab lwm yam khoom siv acid melting kuaj.Feem ntau, nws yuav tsum tsis txhob siv rau melting ntawm Na0H, Na202 thiab Na2CO3, thiaj li tsis mus corrode porcelain crucible.Porcelain crucible tsis tuaj yeem tiv tauj nrog hydrofluoric acid.
Alumina ceramic crucible tuaj yeem boiled HCl los xyuas kom meej lub purity ntawm cov khoom thiab kub tsis kam.Cov khoom siv ntom ntom ntom ntom, zoo oxidation tsis kam, 400-500 degrees siab dua li cov khoom siv graphite, txog li 900 txoj kev pabcuam siab ntev.Nrog kev kub siab ua haujlwm, qis thermal expansion coefficient, zoo tshav kub thiab poob siab tsis kam thiab zoo corrosion kuj.Cov tshuaj lom neeg kev ua tau zoo yog ruaj khov thiab yeej tsis hnov mob nrog cov hlau yaj, txhim kho cov purity ntawm cov hlau.
(1) Yooj yim ntxuav thiab ua kom huv si.Lub glaze ntawm ceramic crucible yog ci thiab muag heev, thiab nws yooj yim los ntxuav tom qab siv.
(2) Porcelain stoma muaj tsawg heev, thiab qhov nqus dej tsawg heev.Cia cov tshuaj nrog ceramic crucible thiab nruj sealing tuaj yeem tiv thaiv volatilization, infiltration thiab ntxeem tau ntawm cov kab mob sab nraud.
(3) Tshuaj stability thiab durability.Cov ntsiab lus no yog qhov zoo tshaj rau cov khoom siv hlau xws li tooj liab, hlau, txhuas, thiab lwm yam, ceramic crucible muaj qee yam tsis kam rau acid, alkali, ntsev thiab carbonate gas yaig nyob rau hauv qhov chaw, tsis yooj yim rau cov tshuaj tiv thaiv nrog cov tshuaj no, tsis xeb. kev laus.
(4) Zoo thermal stability thiab qeeb cua sov hloov.Ceramic crucible muaj qhov ua tau zoo ntawm kev mus rau qhov sib txawv ntawm qhov kub thiab txias, uas yog qhov zoo dua li cov iav iav, nws yog cov khoom siv hluav taws xob tsis zoo ntawm cov cua sov, hloov hluav taws xob qeeb, siv los tuav cov dej kub npau npau lossis dej kub, qhov kawg tsis kub dhau.
Khoom siv
Alumina yog siv dav heev, hluav taws xob, roj av, tshuaj, refractory, ceramics, plastics, textile, ntawv, thiab tshuaj thiab ntau lwm daim teb tuaj yeem pom nws daim duab, feem ntau yog cov khoom tshwj xeeb ntawm alumina thiab aluminium hydroxide.Txawm li cas los xij, ntau dua 90 feem pua ntawm alumina yog siv los ua raw khoom rau electrolytic aluminium.
Tam sim no, muaj ntau yam uas tsis yog-alumina rau kev kho mob, ntau tshaj 300 hom, txhua yam uas muaj zoo heev lub cev thiab tshuaj, tab sis tus nqi yog ntau dua li alumina rau kev kho mob.
Nyob rau hauv siab purity ultrafine alumina, piv txwv li, vim hais tias ntawm nws cov melting point, siab hardness, siab tsis kam, zoo mechanical zog, hnav tsis kam, corrosion kuj, tshav kub kuj thiab lwm yam zoo heev 2.Main Features, yog li yog dav siv nyob rau hauv ib tug siv lead ua cov ntaub ntawv. , advanced porcelain, pob txha dag, semiconductor, sib tsoo cov ntaub ntawv, integrated circuit substrate, kaw daim kab xev muab tub lim, catalyst thiab nws cov cab kuj, laser cov ntaub ntawv, tej cuab yeej, thiab lwm yam.
