Abrasives akhoza kugawidwa m'magulu awiri: abrasives wamba (monga aluminium okusayidi, pakachitsulo carbide, etc.) ndi superhard abrasives (diamondi, kiyubiki boron nitride, etc.).
CBN ndi Jinzeshi ndizovuta komanso zosavala kuposa ma abrasives wamba, koma ndi okwera mtengo kwambiri.Panthawi imodzimodziyo, ma abrasives olimba kwambiri ndi oyendetsa bwino kwambiri kutentha (kutentha kwa diamondi ndi 6 kuwirikiza mkuwa), pamene ma abrasives wamba ndi zida za ceramic, choncho ndi adiabatic.
Superhard abrasive imakhalanso ndi kutentha kwakukulu, ndiko kuti, imatha kutaya kutentha mofulumira.Chikhalidwe ichi chimapangitsa superhard abrasive kukhala ndi chikhalidwe cha "kudula kozizira".Kukaniza abrasion abrasives olimba kwambiri ndikwabwinoko kuposa abrasives wamba, koma mawonekedwe awa a abrasives olimba kwambiri sakutanthauza kuti ndi oyenera onse.njira akupera.
Abrasive iliyonse ili ndi gawo loyenera kwambiri logwiritsira ntchito, kotero ndikofunikira kumvetsetsa mawonekedwe amtundu uliwonse.Mwachitsanzo, ma alumina ceramic abrasives - omwe nthawi zina amatchedwa ma abrasives a seed gel (SG) kapena ceramic abrasives - nthawi zambiri amakhala ndi mphamvu yolimba komanso yosunga mawonekedwe kuposa aluminiyamu wosungunuka (wamba).Komabe, ma abrasives a ceramic amakhalanso ndi magawo oyenera ogwiritsira ntchito.
Alumina: Al2O3 ndiye abrasive yotsika mtengo kwambiri.Pamene akupera zitsulo zolimba, ntchitoyo ndi yabwino kwambiri.Pansi pa kuvala mosalekeza, ma superalloys a nickel base amathanso kukhala pansi.Al2O3 ili ndi kusinthika kwamitundu yosiyanasiyanakugayazinthu, monga zipangizo zofewa ndi zolimba, kudula pang'onopang'ono ndi kudula kolemera, ndipo zimatha kugaya kumapeto kwapamwamba kwambiri.
Ceramic aluminiyamu: aluminiyamu ya ceramic ili ndi mphamvu zambiri, choncho ndiyoyenera kwambiri nthawi zomwe mphamvu yodulira ya njere iliyonse ya abrasive imakhala yayikulu.Ceramic alumina ndi yothandiza kwambiri pakupera kwa cylindrical ndi ndege yayikulu yobwerezabwereza yachitsulo cholimba.Koma si oyenera kudula arc yaitali ndi yaing'ono katundu mphamvu ya mbewu abrasive limodzi, monga mkati zozungulira akupera, zokwawa chakudya akupera, etc. Komabe, ceramic aluminiyamu abrasive particles kusinthidwa ndi "kutambasula" Angagwiritsidwenso ntchito pokonza viscous.chitsulo chosapanga dzimbiri, superalloy, etc. ngakhale pamene arc kudula ndi yaitali.Panthawi imeneyi, chiŵerengero cha mawonekedwe (utali m'lifupi chiŵerengero) cha particles abrasive kufika 5.
Nthawi yotumiza: Jan-02-2023