Iyo abrasive tishu yakakamurwa kuita zvikamu zvitatu: yakasimba, yepakati uye yakasununguka.Chikamu chega chega chinogona kupatsanurwazve kuita manhamba, nezvimwewo, idzo dzinosiyaniswa nenhamba dzesangano.Iyo yakakura nhamba yesangano reabrasive tool, iyo idiki yevhoriyamu muzana yeabrasive muabrasive tool, uye yakakura mukaha pakati pezvimedu zvinoputika, izvo zvinoreva kusunungura sangano.Ukuwo, kana nhamba yesangano iri duku, sangano rinowedzerawo kusimba.Mabrasives ane matishu akasununguka haasi nyore kupfuudza kana ashandiswa, uye anogadzira kushoma kupisa panguva yekukuya, izvo zvinogona kuderedza deformation yekupisa uye kupisa kweiyo workpiece.Zviyo zvinoputika zveabrasive tool nesangano rakasimba hazvisi nyore kudonha, izvo zvinobatsira kuchengetedza geometric shape yeabrasive tool.Kurongeka kweiyo abrasive tool inongodzorwa zvinoenderana neabrasive tool formula panguva yekugadzira, uye kazhinji haina kuyerwa.Superabrasive bonded abrasives inonyanya kugadzirwa nedhaimondi, cubic boron nitride, nezvimwewo uye inosungirirwa nechisungo chekubatanidza.Nekuda kwemutengo wepamusoro wedhaimondi uye cubic boron nitride uye yakanaka kupfeka kuramba, iwo akasungwa mabrasives akagadzirwa nawo akasiyana neakajairwa abrasive bonded abrasives.Pamusoro peiyo superhard abrasive layer, kune shanduko yekuchinja uye substrates.Iyo superabrasive layer ndiyo chikamu chinoita basa rekucheka, uye inoumbwa ne superabrasives uye bonding agents.Iyo matrix inoita basa rekutsigira mukukuya uye inoumbwa nezvinhu zvakaita sesimbi, bakelite kana ceramics.
Kune maviri ekugadzira maitiro esimbi bond abrasives, poda simbi uye electroplating, ayo anonyanya kushandiswa kune superhard abrasive bonded abrasives.Iyo poda metallurgy nzira inoshandisa bronze sebhainda.Mushure mekusanganisa, inoumbwa nekutsikirira kupisa kana kudzvanya pane tembiricha yekamuri, uye yobva yaiswa sinter.Nzira ye electroplating inoshandisa nickel kana nickel-cobalt alloy sesimbi ye electroplating, uye abrasive inobatanidzwa pa substrate maererano ne electroplating process kuti iite abrasive tool.Mhando dzakasiyana dzeabrasives dzinosanganisira sintered corundum abrasives uye fiber abrasives.Iyo sintered corundum abrasive tool inogadzirwa nekusanganisa, kuumba, uye kunyura panosvika 1800 ℃ ine alumina poda yakatsetseka uye huwandu hwakakodzera hwechromium oxide.Rudzi urwuabrasive tooline compact chimiro uye yakakwirira simba, uye inonyanya kushandiswa kugadzirisa wachi, zviridzwa uye zvimwe zvikamu.Fiber abrasive tools inogadzirwa nefilaments (senge naironi filaments) ine kana inonamira kune abrasives.Vane elasticity yakanaka uye inonyanya kushandiswa pakukwenenzvera simbi zvinhu uye zvigadzirwa zvavo.
Iyo yekushandura layer inoshandiswa kubatanidza matrix uye iyo superabrasive layer, uye inoumbwa neanosungirira mumiriri, iyo dzimwe nguva inogona kusiiwa.Mabhainda anowanzo shandiswa maresin, simbi, simbi dzakapfava uye makeramiki.
Nzira yekugadzira yeabrasives yakasungwa inosanganisira: kugovera, kusanganisa, kuumba, kupisa kupisa, kugadzirisa uye kuongorora.Nezvisungo zvakasiyana, nzira yekugadzira yakasiyanawo.Iyo ceramic bondabrasive tool kunyanya inotora nzira yekutsikirira.Mushure mekuyera abrasive uye binder zvichienderana nehuremu hwehuwandu hwefomati, isa muvhenganisi kuti usanganise zvakaenzana, woiisa muforoma yesimbi, uye gadzira iyo abrasive tool isina chinhu pamuchina.Iyo isina chinhu inoomeswa uye yobva yaiswa muchoto kuti igoche, uye tembiricha yekupisa inowanzoita 1300 ° C.Kana panonyungudika yakaderera sintered binder ikashandiswa, tembiricha yekunyungudutsa inodzika kupfuura 1000°C.Zvadaro zvinonyatsogadziriswa maererano nehukuru hwakatsanangurwa uye chimiro, uye pakupedzisira chigadzirwa chinoongororwa.Resin-bonded abrasives anowanzo kuumbwa pamuchina patembiricha yekamuri, uye kune zvakare kupisa-kudzvanya maitiro ayo anopisa nekumanikidzwa pasi pemamiriro ekupisa.Mushure mekuumbwa, inoomeswa muchoto chinoomesa.Kana phenolic resin ichishandiswa sebhainda, tembiricha yekurapa i180 ~ 200 ℃.Rubber-bonded abrasives anonyanya kusanganiswa nema rollers, akakungurutswa kuita mapepa matete, uye obva abudiswa nemapanga ekubaya.Mushure mekuumbwa, inoiswa vulcanization mutangi re vulcanization pane tembiricha ye165 ~ 180 ℃.
Nguva yekutumira: Sep-05-2022
