Coated abrasivesyog cov khoom lag luam nrov hauv kev sib tsoo kev lag luam vim lawv ntau yam thiab kev ua tau zoo. Cov khoom siv abrasive no muaj cov khoom siv thaub qab xws li ntawv, ntaub lossis zaj duab xis, uas yog coated nrog cov nplej abrasive xws li txhuas oxide, silicon carbide lossis zirconia. Cov khoom siv abrasive no feem ntau siv hauv kev lag luam xws li hlau ua haujlwm, woodworking, automotive thiab aerospace.
Ib qho ntawm cov kev nce qib tshiab tshaj plaws hauv cov txheej txheem coated abrasives yog kev txhim kho cov khoom siv rov qab tshiab hu ua poly-woven fabric. Cov khoom siv no muaj cov qauv sib txuas ntawm polyester thiab nylon fibers, muab kev ua kom ntev thiab tsim kua muag piv rau cov ntaub ntawv rov qab ib txwm. Poly-woven npuag yog tshwj xeeb tshaj yog pab tau nyob rau hauv hnyav-lub luag hauj lwm sib tsoo daim ntaub ntawv qhov twg ntau nruj rov qab yuav tsum tau los tswj cov duab ntawm cov khoom abrasive.
Lwm txoj kev loj hlob nyob rau hauv kev lag luam coated abrasives yog kev siv tus kheej-sharpening abrasive nplej. Cov nplej no muaj cov pob zeb ceramic uas tawg thiab nthuav tawm tshiab, cov npoo ntse thaum siv, ncua lub neej ntawm cov khoom siv abrasive thiab txo lub sijhawm sib tsoo. Self-sharpening abrasive nplej yog feem ntau siv nyob rau hauv daim ntawv thov uas yuav tsum tau siab cov ntaub ntawv tshem tawm tus nqi thiab sib xws nyob rau hauv tiav.
Tsis tas li ntawd, kev nce qib hauv abrasive grain bonding thev naus laus zis tau coj mus rau kev tsim cov khoom sib xyaw abrasive, uas sib xyaw cov txiaj ntsig ntawm ntau hom abrasive hauv ib yam khoom. Piv txwv li, hybrid abrasive khoom yuav muaj xws li ceramic abrasive grain bonded rau cov ntaub ntawv rov qab coated nrog ib txheej ntawm txhuas oxide los yog silicon carbide abrasive. Qhov kev sib xyaw ua ke no muaj zog txiav ntau zog thiab muaj peev xwm ua kom tiav cov khoom tiav.
Thaum kawg, tau muaj qhov sib txawv ntawm kev siv dej-raws li roj nplua nyeem ua ke nrog coated abrasives kom txo tau cov cua sov tsim thiab txhim kho kev sib tsoo tag nrho. Dej-raws li lubricants muab ntau cov txiaj ntsig ntawm cov roj-raws li cov roj nplua nyeem, suav nrog txo cov pa taws thiab tsw ntxhiab, txhim kho cov neeg siv kev nyab xeeb, thiab txo qhov cuam tshuam ib puag ncig.
