Hauv kev ua cov iav niaj hnub no, kev ua tiav qhov chaw tiav thiab zoo nkauj yog qhov tseem ceeb rau ob qho tib si kev zoo nkauj thiab kev siv ua haujlwm. 180 grit dawb fused alumina tau tshwm sim ua cov khoom siv abrasive nyiam rau iav sandblasting vim nws muaj peev xwm txiav sib npaug thiab faib cov khoom me me.
Nrog rau qhov nruab nrab ntawm cov khoom me me li ntawm 80–90 microns, 180 grit dawb fused alumina muab cov nyhuv frosted tas li yam tsis ua rau muaj kev puas tsuaj ntau dhau ntawm qhov chaw. Nws qhov purity siab (≥99% Al₂O₃) thiab cov hlau tsawg ua kom ntseeg tau tias tsis muaj kev hloov pauv lossis kev ua qias tuaj thaum lub sijhawm blasting, ua rau nws tsim nyog rau kev tsim vaj tsev, kho kom zoo nkauj, thiab cov iav lag luam siab.
Cov qauv ntawm cov khoom me me uas muaj lub kaum sab xis ua rau muaj kev txiav me me uas tswj tau, ua rau cov neeg teb xov tooj ua tiav cov tiav du thiab matte nrog kev sib xws zoo heev. Piv rau cov khoom siv abrasives loj dua, 180 grit muaj qhov ua kom zoo dua ntawm qhov chaw, ua rau nws zoo tagnrho rau cov ntawv thov xws li cov iav vaj huam sib luag, cov chaw da dej, cov chaw faib, thiab kev kos duab logo meej.
Tsis tas li ntawd xwb, nws qhov kev tawv siab (Mohs 9) thiab kev tiv taus kev hnav zoo ua rau lub neej ua haujlwm ntev dua thiab kev siv rov qab tau, txo cov nqi ua haujlwm tag nrho. Thaum siv rau hauv cov xwm txheej zoo tshaj plaws - feem ntau ntawm qhov siab ntawm 0.4–0.7 MPa thiab cov kaum sab xis blasting tsim nyog - 180 grit dawb fused alumina ua kom muaj kev ua haujlwm zoo thiab zoo.
Raws li qhov kev thov rau cov iav tiav zoo tshaj plaws txuas ntxiv mus, 180 grit dawb fused alumina tseem yog qhov kev daws teeb meem txhim khu kev qha rau cov chaw tsim khoom nrhiav kev ua haujlwm kom raug, sib xws, thiab kev ua haujlwm pheej yig hauv kev ua haujlwm sandblasting.