Cov ntaub ntawv thiab ua rau abrasive tsis ua hauj lwm nyob rau hauvcoated abrasives feem ntau suav nrog peb pawg hauv qab no:
1. Blunt abrasive: Blunt sib tsoo yog tshwm sim los ntawm qhov tsis muaj peev xwm ntawm cov abrasive kom tawg kom zoo. Slippage tshwm sim los ntawm qhov txawv txav blunting yuav ua rau cov abrasive tsis txhob sib tsoo thiab tsim kom muaj ntau qhov sib txhuam kub. Kev ua haujlwm yam tsis muaj kev sib tsoo thiab kev siv ntau dhau yog tshwm sim los ntawm cov laj thawj hauv qab no:
♦ Cov abrasive nyuaj dhau los yog qhov loj me me yog qhov zoo heev
♦ Kev sib tsoo siab yog lub teeb dhau
♦ Khoov siab heev
♦ Lub log tiv thaiv tsis tsim nyog
♦ Abrasive sivceev ceev heev
2. Abrasive clogging: Clogging tshwm sim ntawm abrasive khoob, thaum cov khoom sib tsoo tsis raug tshem tawm raws sij hawm, nws yuav ua rau abrasive clogging. Qhov tshwm sim no feem ntau yog tshwm sim los ntawm cov khoom siv ua haujlwm nrog qis hardness thiab cov tawg loj dua, xws li txhuas, roj hmab, thiab cov khoom muag muag. Tej yam tshwm sim muaj xws li:
♦ Siab dhau
♦ Lub log tiv thaiv tsis tsim nyog
♦ Abrasive sivceev ceev heev
♦ Cov dej txias tsis txaus
♦ Tsis muaj lub tshuab nqus tsev txaus
3. Abrasive shedding: Abrasive shedding yog thaum lub abrasive ntog tawm ntawm lub nraub qaum tsis tas yuav poob. Nws yog ib qho yooj yim uas tshwm sim thaum lub siab dhau heev lawm thiab lub load kuj muaj peev xwm tsis zoo. Tej yam ua tau:
♦ Abrasive mos heev
♦ Cov khoom siv tawv heev
♦ Cov khoom txiav qhov tob siab dhau lawm
♦ Lub log tiv thaiv tsis tsim nyog
♦ Tsuas yog ib feem ntawmabrasive sivkoom nrog kev sib tsoo
