Kev siv thiab cov khoom tseem ceeb ntawm tabular corundum

Cov khoom ntawm tabular corundum muaj ntau daim ntawv thov nyob rau hauv daim teb ntawm refractories. Feem ntau siv hauv kev lag luam hlau thiab hlau. Tabular corundum yog cov khoom siv zoo tshaj plaws rau siab alumina cib thiab amorphous hauv ob sab phlu uas muaj 90-100 feem pua ​​alumina. Tabular corundum yog tsim rau ceramic, tshuaj thiab dej - khi substrates.

Tabular corundum tuaj yeem siv ib leeg thiab hauv kev sib xyaw ua ke lossis nrog calcined / lossis activated alumina. Vim tias tabular corundum nthuav tawm siab purity txawm nyob rau hauv cov hmoov zoo, nws tuaj yeem siv los txhim kho cov khoom ntawm qis alumina aggregates. Piv txwv xws li bauxite thiab fused xim av corundum, siv coarse hais ntawm cov aggregates thiab nruab nrab hais thiab nplua hmoov ntawm tabular corundum.

Lub ntsiab chemical muaj pes tsawg leeg ntawm alumina sintered corundum yog Al2O3 (85 ~ 88 feem pua), SiO2 (3 ~ 4 feem pua), TiO2 (3.5 ~ 4.5 feem pua), Fe2O3 (5.6 ~ 6.5 feem pua). Nws muaj -- Al2O3 microcrystalline qauv, siab toughness, tuaj yeem tiv taus kev sib tsoo loj yam tsis muaj kev tawg, thiab tuaj yeem txiav cov txheej hlau tuab, cov khoom siv transverse tuaj yeem ncav cuag ntau tshaj 6 hli. Cov duab ntawm abrasives tuaj yeem ua rau ntau hom kab, uas yog ib qho tshwj xeeb ntawm txhua qhov abrasives thiab tsim nyog rau kev sib tsoo hnyav.