Ii-abrasives zinokwahlulwa zibe ngamacandelo amabini: abrasives eziqhelekileyo (ezifana ne-aluminium oxide, i-silicon carbide, njl.) kunye ne-superhard abrasives (i-diamond, i-cubic boron nitride, njl.).
I-CBN kunye ne-Jinzeshi zinzima kwaye ziyakwazi ukunxiba kune-abrasives eziqhelekileyo, kodwa zibiza kakhulu.Kwangaxeshanye, ii-abrasives ezizii-superhard zi-conductors zobushushu ezigqwesileyo (i-thermal conductivity yedayimane iphindwe ka-6 kobhedu), ngelixa ii-abrasives eziqhelekileyo zizinto ze-ceramic, ngoko ke ziyi-adiabatic.
I-Superhard abrasive ine-diffusivity ephezulu ye-thermal, oko kukuthi, inamandla okuphelisa ubushushu ngokukhawuleza.Olu phawu lwenza ukuba i-superhard abrasive ibe nesimo "sokusika okubandayo".Ukuxhathisa i-abrasive abrasives superhard abrasives kubhetele kakhulu kunokwe-abrasives eqhelekileyo, kodwa ezi mpawu ze-abrasives ezinzima azithethi ukuba zifanelekile kubo bonke.iinkqubo zokusila.
I-abrasive nganye inendawo yayo efanelekileyo yesicelo, ngoko ke kubalulekile ukuqonda iimpawu ze-abrasive nganye.Umzekelo, i-alumina ceramic abrasives - ngamanye amaxesha ibizwa ngokuba yi-seed gel (SG) abrasives okanye i-ceramic abrasives - ngokubanzi inokumelana nokunxiba okungcono kunye nokugcina imilo kune-alumina etyhidiweyo (eqhelekileyo).Nangona kunjalo, iibrasives ze-ceramic nazo zineendawo ezifanelekileyo zokusetyenziswa.
I-Alumina: I-Al2O3 yeyona nto inexabiso eliphantsi.Xa ukugaya intsimbi eqinile, ukusebenza kuhle kakhulu.Ngaphantsi kwemeko yokugqoka okuqhubekayo, i-nickel base superalloys nayo inomhlaba.I-Al2O3 inokuziqhelanisa kakuhle nezahlukeneyoukusilaiimeko, ezifana nezinto ezithambileyo kunye ezinzima, ukusika ukukhanya kunye nokusika okunzima, kwaye kunokugaya umphezulu ophezulu kakhulu.
I-alumina ye-Ceramic: i-alumina ye-ceramic inamandla amakhulu, ngoko ke iyona nto ifanelekileyo kwizihlandlo apho umthwalo wokusika wengqolowa nganye ye-abrasive iphezulu.I-alumina ye-Ceramic iyasebenza kakhulu ekusileni i-cylindrical kunye nenqwelomoya enkulu ebuyisela ukugaya kwentsimbi eqinile.Kodwa ayifanelekanga i-arc yokusika ixesha elide kunye nomthwalo omncinci womthwalo wengqolowa enye, njengokusila kwisetyhula yangaphakathi, i-creep feed grinding, njl.yenziwe ngentsimbi eshayinayo, superalloy, njl naxa i-arc yokusika inde.Ngeli xesha, umyinge wemilo (ubude bobubanzi bobubanzi) beengqungquthela ezinqabileyo zifikelela kwi-5.
Ixesha lokuposa: Jan-02-2023