Fused Alumina yog dab tsi?

Fused alumina yog ntau yam abrasive uas ua los ntawm melting alumina nyob rau hauv ib tug hluav taws xob arc rauv thiab yog dav siv nyob rau hauv ntau industries. Nws muaj 94% mus rau 99% alumina thiab muaj nyob rau hauv ntau qhov ntau thiab tsawg thiab cov duab nyob ntawm daim ntawv thov. Fused alumina paub txog nws cov hardness siab, zoo heev hnav tsis kam, thiab zoo tshuaj stability.

 

Fused Alumina Ua li cas?

 

Cov khoom siv raw rau kev tsim cov fused alumina yog bauxite, anthracite, thiab hlau filings. Cov ntaub ntawv nyoos no tau muab sib xyaw rau hauv qhov tsim nyog thiab smelted hauv hluav taws xob arc rauv ntawm qhov kub ntawm kwv yees li 2000 degrees Celsius. Tom qab txias thiab solidifying, lub resulting fused alumina yog crushed thiab graded los tsim cov khoom ntawm ntau qhov ntau thiab tsawg thiab duab.

 

Cov khoom ntawm Fused Alumina

Fused alumina muaj ntau yam khoom uas ua rau nws haum rau ntau yam kev siv. Nws melting point yog siab, nyob ib ncig ntawm 2050 degrees Celsius, ua rau nws zoo tagnrho rau siab -kub daim ntaub ntawv. Tsis tas li ntawd, nws yog chemically inert, txhais tau tias nws tsis hnov ​​​​mob nrog cov tshuaj feem ntau. Fused alumina yog qhov nyuaj heev thiab hnav-tiv taus, ua rau nws zoo tagnrho rau cov ntawv thov abrasive.

 

Kev faib tawm ntawm Fused Alumina

Brown Fused Alumina: Qhov no yog hom fused alumina siv dav tshaj plaws, suav txog ntau dua 70% ntawm kev tsim khoom thoob ntiaj teb. Ua los ntawm bauxite, xim av fused alumina yog tus cwj pwm los ntawm siab toughness thiab tsawg brittleness. Nws yog feem ntau siv rau kev sib tsoo thiab txiav, nrog rau hauv refractories thiab sandblasting.

 

Dawb Fused Alumina: Hom fused alumina no yog tsim los ntawm siab -purity alumina, nthuav tawm siab hardness thiab siab toughness. Nws yog feem ntau siv rau hauv daim ntawv thov uas yuav tsum muaj kev ua haujlwm siab - abrasives, xws li kev sib tsoo log, ntawv xuab zeb, thiab cov cuab yeej txiav.

 

 

Tack-zoo li Alumina: Hom fused alumina no yog tsim los ntawm siab -purity alumina, nthuav tawm zoo heev -kub tsis kam thiab thermal shock resistance. Nws yog feem ntau siv nyob rau hauv cov ntaub ntawv refractory teb, xws li hauv ob sab phlu ntawm high - kub furnaces.

 

Dub Fused Alumina: Hom fused alumina no yog tsim los ntawm qis -hlau bauxite, uas muaj qhov siab hardness thiab tsawg porosity. Nws yog feem ntau siv hauv kev sib tsoo, xws li kev sib tsoo thiab polishing stainless hlau thiab lwm yam hlau.

 

Microcrystalline Fused Alumina: Hom fused alumina no muaj cov nplej me me dua li cov pa fused alumina, yog li nthuav tawm ntau dua pob txha toughness thiab hnav tsis kam. Nws yog feem ntau siv rau hauv cov cuab yeej txiav thiab lwm yam kev siv uas yuav tsum tau muaj zog thiab kav ntev.

 

Kev siv ntawm Fused Alumina

Abrasives: Fused alumina yog dav siv los ua abrasive vim nws qhov siab hardness, siab toughness, thiab thermal stability. Nws yog feem ntau siv hauv kev sib tsoo thiab polishing, nrog rau cov xuab zeb blasting hauv kev lag luam xws li kev tsim kho, tsheb, thiab aerospace.

 

Refractory Materials: Fused alumina kuj tseem siv rau hauv kev tsim cov khoom siv refractory uas tuaj yeem tiv taus qhov kub thiab txias ib puag ncig yam tsis muaj kev ua haujlwm degradation. Nws qhov siab melting point thiab thermal stability ua rau nws zoo tagnrho rau cov ntaub ntawv refractory xws li kiln linings, furnace linings, thiab crucibles.

 

Ceramics: Vim nws siab purity, siab zog, thiab zoo heev thermal thiab hluav taws xob zog, fused alumina yog siv nyob rau hauv zus tau tej cov advanced ceramics. Nws yog feem ntau siv rau hauv cov khoom siv ceramic rau cov khoom siv hluav taws xob, xws li cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, thiab cov khoom siv hluav taws xob.

 

Kev kho deg: Fused alumina yog siv dav hauv kev kho deg hauv kev lag luam xws li kev ua hlau, kev tsim kho, thiab kev tsim nkoj. Nws yog feem ntau siv rau hauv cov txheej txheem sandblasting thiab txhaj tshuaj peening, uas tshem tawm cov kab mob ntawm qhov chaw thiab tsim cov tawv nqaij ntxhib, yog li txhim kho cov adhesion ntawm coatings los yog xim.

 

Kev lim dej

Fused alumina, vim nws qhov porosity siab, muaj peev xwm tshem tawm cov kab mob xws li cov hlau hnyav thiab cov organic tebchaw, ua rau nws haum raws li lim xov xwm hauv kev kho dej.

 

Lwm Daim Ntawv Thov

Fused alumina kuj tseem siv rau ntau yam kev siv, xws li kev tsim cov catalysts, txiav cov cuab yeej, thiab vuam electrodes.

 

Qhov zoo thiab kev txwv ntawm Fused Alumina

Fused alumina muaj ntau qhov zoo hauv ntau yam kev siv. Nws cov hardness siab thiab zoo hnav tsis kam ua rau nws zoo tagnrho rau kev siv abrasive. Tsis tas li ntawd, nws muaj zog tiv thaiv thermal shock ua rau nws zoo - haum rau siab - cov ntawv thov kub. Txawm li cas los xij, daim ntawv thov ntawm fused alumina kuj muaj qee qhov kev txwv. Piv txwv li, nws tus nqi kuj siab piv rau lwm yam abrasives, thiab nws nyuaj rau huab hwm coj- tsim.

 

Xaiv txoj cai Fused Alumina rau koj daim ntawv thov

Muaj ntau ntau hom fused alumina muaj nyob rau hauv kev ua lag luam, txhua tus muaj cov khoom sib txawv thiab qhov ntau thiab tsawg. Thaum xaiv txoj cai fused alumina rau koj daim ntawv thov, ntau yam yuav tsum tau xav txog, xws li cov khoom hardness, toughness, thiab hnav tsis kam, nrog rau cov duab thiab qhov loj ntawm cov nplej abrasive.