Brown aluminium oxide, tseem hu ua corundum, yog tau los ntawm kev txo qis hauv hluav taws xob kub kub. Cov khoom siv tseem ceeb yog bauxite, thiab tom qab ntawd lwm cov ntaub ntawv pabcuam xws li anthracite thiab hlau filings ntxiv. Lub ntsiab tivthaiv ntawm cov xim av fused alumina tiav yog alumina, nrog rau cov ntsiab lus ntawm 75 feem pua rau 95 feem pua, thiab ib qho me me ntawm lwm cov khoom xws li Fe, Si, Ti, thiab lwm yam.
Hais txog lub cev khoom ntawm xim av fused alumina, lub ntsiab lus qhia yog nws qhov ntom. Feem ntau hais lus, peb paub ib qhov ntom ntom, tab sis xim av fused alumina muaj ob: ib qho yog qhov ntom ntom, thiab lwm qhov yog qhov ntom ntom. Yog li ob qho no yog dab tsi? Qhov txawv li cas?
Qhov ntom ntom ntawm cov xim av aluminium oxide:
Qhov ntom ntom ntawm cov xim av aluminium oxide yog 1.53 ~ 1.99g / cm3.
Kev ceev ntom yog qhov loj ntawm cov teeb meem ntim rau hauv ib lub thawv tsis muaj dab tsi tsis suav nrog. Yog li ntawd, qhov ntim ntom ntom ntawm cov xim av aluminium oxide muaj feem xyuam rau ntau yam, xws li particle loj, particle loj muaj pes tsawg leeg, ntau yam, particle shape, thiab lwm yam ntawm abrasive. Qhov ntau ntom ntom yog siab.
Particle ntom ntawm xim av aluminium oxide:
Qhov ntom ntom ntawm cov xim av aluminium oxide yog 3.95 ~ 4. 0g / cm3.
Particle density kuj yog hu ua qhov ceev ceev, uas yog qhov ceev peb feem ntau nkag siab, uas yog, qhov loj ntawm cov teeb meem ib chav tsev ntim hauv lub xeev ntom ntom (uas yog, qhov ntim tsis suav nrog pores). Thaum lub sij hawm no, qhov finer lub abrasive particle loj, qhov ntau yog qhov ntsuas particle ceev.
