Mabrasives anogona kupatsanurwa mumapoka maviri: akajairika abrasives (akadai sealuminium oxide, silicon carbide, nezvimwewo) uye superhard abrasives (dhaimondi, cubic boron nitride, nezvimwewo).
CBN neJinzeshi dzakaoma uye dzinoramba kupfeka kupfuura dzakajairwa mabrasives, asi dzinodhura zvakanyanya.Panguva imwecheteyo, superhard abrasives yakanakisa kupisa conductor (iyo yekupisa kwedhaimondi kakapetwa katanhatu iyo yemhangura), nepo zvakajairika mabrasives ari ceramic zvinhu, saka ari adiabatic.
Superhard abrasive inewo yakakwira yekupisa diffusivity, ndiko kuti, ine kugona kudzima kupisa nekukurumidza.Hunhu uhwu hunoita kuti superhard abrasive ine hunhu hwe "chando chekucheka".Kupokana kweabrasion ye superhard abrasives zvakare kuri nani pane iyo yeakajairika abrasives, asi aya maitiro e superhard abrasives haareve kuti akakodzera kune ese.kugaya nzira.
Imwe neimwe abrasive ine yayo yakakodzera nzvimbo yekushandisa, saka zvakakosha kuti unzwisise maitiro ega ega abrasive.Semuyenzaniso, alumina ceramic abrasives - dzimwe nguva inonzi seed gel (SG) abrasives kana ceramic abrasives - anowanzo kuve nani kupfeka kuramba uye kuchengetedza chimiro pane yakanyungudutswa (yakajairika) alumina.Nekudaro, ceramic abrasives zvakare ine akanyanya kukodzera mashandisirwo minda.
Alumina: Al2O3 ndiyo yakachipa abrasive.Pakukuya simbi yakaoma, kushanda kwakanaka kwazvo.Pasi pemamiriro ekuramba achipfeka, nickel base superalloys inogona zvakare kuve pasi.Al2O3 ine yakanaka kuchinjika kune akasiyanakugayamamiriro ezvinhu, akadai sezvinhu zvinyoro uye zvakaoma, kucheka kwakareruka uye kucheka kunorema, uye kunogona kukuya kupedzisa kwepamusoro.
Ceramic alumina: ceramic alumina ine simba rakawanda, saka inonyanya kukodzera kune dzimwe nguva apo simba rekucheka rezviyo zveabrasive zviyo zvakakwirira.Ceramic alumina inoshanda zvikuru mukukuya cylindrical uye ndege huru inodzokorora kukuya kwesimbi yakaoma.Asi haikodzere kureba kwekucheka arc uye diki remutoro simba reimwe abrasive tsanga, senge mukati denderedzwa kugaya, zvinokambaira feed kugaya, etc. Zvisinei, iyo ceramic alumina abrasive particles yakagadziridzwa ne "stretching" inogonawo kushandiswa kugadzira viscous.simbi isina ngura, superalloy, nezvimwewo kunyange kana arc yekucheka yakareba.Panguva ino, chiyero chechimiro (urefu hupamhi chiyero) chezvikamu zvinoputika zvinosvika pa5.
Nguva yekutumira: Jan-02-2023