Chimiro chezvinyorwa zvepamusoro uye kuumbwa kwekuputira kunoita basa rinokosha mukukodzera kwemavhiri ekukuya kune zvakasiyana-siyana.
Kufananidza iyo application kune yakakwana superabrasive vhiri inogona kubatsirwa nekuvandudza chikamu chemhando uye goho rechigadzirwa, kugadzira ruzivo rwakadzama rwegrit, bond uye coating zvivakwa zvakakosha kune vashandisi veguyo.Mufananidzo nerubatsiro rweWanyu Abrasives.
Sarudzo yakanaka yemavhiri akaomesesa ekukuya mavhiri akakosha pakuita basa rekukuya.Vhiri rekurudyi rinogona kukwirisa zvikamu paawa, kuderedza shanduko yezvishandiso, kuwedzera nguva yemuchina, kuvandudza mhando yechigadzirwa uye kuderedza mari yekushandisa.Nekudaro, kuwana vhiri rakadaro kunoda kunyatsodzidza chimiro chezviyo uye superabrasive coating, pakati pemamwe maitiro.
Superabrasive grinding wheels inoshanda pasi pemamiriro ekugaya zvakanyanya uye inofanira kuva nehuwandu hwezvinhu, kusanganisira kuoma pakupisa kwepamusoro, high thermal conductivity kubvisa kupisa kubva pakucheka, kugadzikana kwekuumbwa, kupfeka kusagadzikana, lubricity uye kushorwa kwepurasitiki deformation.
Kuita kweiyo superabrasive kugaya vhiri kunonyanya kutsanangurwa neyakasungwa substrate, pamwe nehunhu hwemasikirwo uye mhando yeabrasive tsanga yevhiri, ingave diamond kana cubic boron nitride (CBN).Zvimedu zvakasiyana uye zvipfeko zvinopa masimba akasiyana uye naizvozvo zvakakodzera kushandiswa kwakasiyana.Kuziva kuti ndeapi masisitimu uye machira akanakisa kune chaiwo maapplication anogona kuchengetedza vagadziri mari nekufamba kwenguva.
Zvichienderana nekushandiswa kana kukuya, zviyo zveprimiyamu kana zviyo zvinodhura zvinogona kunge zviri sarudzo ine mari yakawanda pabasa racho.Saizvozvo, mavhiri edhaimani anodhura zvakanyanya kana CBN anogona kunge asina kukodzera kune yakapihwa application.Chinokosha hausi mutengo, asi chimiro chezviyo zve superabrasive uye rudzi rwekupfeka runoshandiswa pavhiri.
Kuoma (toughness) zvinoreva hunhu hwetsanga inopwanya iri pasi pekumanikidzwa kwemagetsi, kureva kugona kwayo kuramba kutsemuka, kutsemuka nekutyoka.Kufenda (Brittleness) zvinoreva kugona kwetsanga kutsemuka nekuzvirodza.
Mbeu dzakaomarara dzakaomarara dzinoita kunge dzakaomarara uye dzinobata chimiro chadzo zviri nani pane kubvisa zvinhu.Brittle particles inorodzwa nguva nenguva, chimiro chayo cheangular chinobvisa zvimwe zvinhu nepase pese.Kushandiswa kwakasiyana kunoda zviyo panzvimbo dzakasiyana pane spectrum pakati pemafomu maviri aya.
Panyaya yefomu, kune maviri mapoka epolar: blocky uye angular.Iyo yakawanda agglomerated kana kutenderedzwa iyo abrasive particles, iyo isingashande kucheka, asi zviri nani chimiro chinochengetwa.Clumped particles akasimba uye anomira nepamusoro abrasive masimba asati atyoka.
Sezvineiwo, angular maumbirwo anowedzera hasha uye zviri nani kupinda uye kubvisa zvinhu.Zvisinei, zviyo zveangular zvinoparadzwa nekuedza kushoma.
Sezvineiwo, panofanira kunge paine chimedu chinoenzanisa aya maumbirwo maviri, chichibvumira kuti chirambe chakaomarara, chichichibvumira kuti chiparare, chichiburitsa mutsva, unopinza wekucheka.Pasina kukwanisa kuparara, zviyo zvichave zvinyoro uye zvinokwesha pamusoro pechishandiso panzvimbo yekucheka, zvichikonzera kuwedzera kwesimba rekukuya uye zvinetso zvakakomba zvevhiri uye workpiece.
Coating inzira yekupfekedza zvakakwana uye zvakafanana zviyo zve superabrasive nedhizaini yezvimwe zvinhu.Iyi nzira inowedzera saizi yezviyo uye huremu, iyo inowanzoshandiswa kuvandudza hunhu hwakadai sesimba uye kusimba mukukuya.
Simba rematrix akasungirirwa kubata zviyo zvinoputika zvinotarisa kushanda kwevhiri rekukuya.Mukana mukuru wekupotera ndewekuti vanogona kugadzira dhaimondi kana CBN zvimedu kuti zvinyatso kunamatira kune vhiri, ringave resin, vitreous, simbi, hybrid kana zvimwe.Kuvandudzwa kwemichina uye kuchengetwa kwemakemikari ye bonding system inosimudzira kuvimbika kwevhiri.
Iko kuchengetwa kwemutengo uye kubereka kwakanyanya kunouya nekusarudza vhiri rekukuya rinogona kuve nyore kukwikwidza mukana kana musangano uchitamba makadhi ayo zvakanaka.
Nickel, mhangura uye sirivheri coatings ndiwo anonyanya kuzivikanwa superabrasive coatings.Nickel plating yakajairika mumavhiri akasungwa resin.Aya machira anonatsiridza hupenyu hwevhiri, kupera kwepamusoro, kupisa kupisa uye kunamatira kwemuchina kunzvimbo dzekubatanidza kuti kuwedzere kuita.
Mhangura yemhangura ndiyo yakasarudzika yesarudzo yekukuya yakaoma nekuda kwekugona kwemhangura kuitisa kupisa kure nenzvimbo yekukuya uye kugadzirisa kuchengetwa kwema mechanical nemakemikari particles mu bonded system.
Silver coatings inodhura zvakanyanya asi inopa yakanyanya kupisa conductivity yemhando nhatu dzekupfeka, pamwe nekuvandudzwa kwekuchengetwa kwechikamu uye kuwedzera lubricity.Sirivha ndiyo inopedzerwa kana mafuta akachena achishandiswa seanotonhodza.
Kuwanda kwekuputira pazviyo zvinoputika zvinogona kubva pa30% kusvika ku70% yehuremu hwose hwezviyo zvakaputirwa.Coatings pamadhaimani masisitimu anowanzo 50% kusvika 56% nehuremu, nepo CBN zvimedu zvinowanzoshandiswa pakupfeka pa60% nehuremu.Coated superabrasives anowanzo kudhura kupfuura asina kuvharwa mabrasives nekuda kwepamusoro anotarisirwa kuita uye mamwe matanho ekugadzira anodiwa kuti aagadzire.
Kunyangwe zvigadziriso zvidiki kune abrasive muvhiri rekukuya zvinogona kuve shanduko yemutambo kune yako yekukuya system uye maitiro.Kuchengetwa kwemitengo uye kubudirira kunowanikwa kubva pakusarudza vhiri rekukuya rinokwanisa kuve mukana wekukwikwidza kana musangano uchitamba makadhi ayo nemazvo.
Nekushandisa epamberi, yepamusoro-yekuita milling nzira muchirongwa chekugadzira, SolidCAM iMachining tekinoroji inogona kuderedza zvakanyanya nguva yekutenderera uye kuwedzera zvakanyanya hupenyu hwematurusi kana uchienzaniswa nekugaya kwechinyakare.
Masimba anobatanidzwa mukugayo anogona kuverengerwa, zvichibvumira maturusi emasvomhu kuti ashandiswe kufanotaura nekudzora masimba aya.Mafomula chaiwo ekuverenga aya masimba anobvumidza iwe kukwidziridza kunaka kwebasa rekugaya.
Nguva yekutumira: Kubvumbi-23-2023