Izindaba Zenkampani

Indlela yokupholisha yesikhunta sepulasitiki

Ukupholisha ngomshini

Ukupholisha ngomshini kuyindlela yokupholisha encike ekusikeni nasekuguqukeni kwepulasitiki kwendawo ebonakalayo ukuze kususwe izingxenye ezipholishiwe ze-convex ukuze kutholwe indawo ebushelelezi. Ngokuvamile, kusetshenziswa izinti zamatshe kawoyela, amasondo oboya, i-sandpaper, njll., futhi ukusebenza ngezandla kuyindlela eyinhloko. Izingxenye ezikhethekile ezifana nobuso bomzimba ojikelezayo zingasetshenziswa. Kusetshenziswa amathuluzi asizayo njengama-turntable, ukupholisha okunembe kakhulu kungasetshenziselwa labo abanezidingo zekhwalithi ephezulu. Ukupholishwa okunembe kakhulu ukusetshenziswa kwamathuluzi akhethekile abrasive, acindezelwa ngokuqinile endaweni ecutshunguliwe yendawo yokusebenza oketshezini lokupholisha oluqukethe ama-abrasives okuzungezisa ngesivinini esikhulu. Ngokusebenzisa lobu buchwepheshe, ukukhahlamezeka kwendawo ye-Ra0.008μm kungafinyelelwa, okuphakeme kakhulu phakathi kwezindlela ezihlukahlukene zokupholisha. Isikhunta se-Optical lens sivame ukusebenzisa le ndlela.

Ukupholisha ngamakhemikhali

Ukupholisha ngamakhemikhali ukwenza ingxenye engaphezulu ye-microscopic convex yento ephakathi nendawo yamakhemikhali incibilike ngokukhethekile kunengxenye egobile, ukuze kutholwe indawo ebushelelezi. Inzuzo eyinhloko yale ndlela ukuthi ayidingi imishini eyinkimbinkimbi, ingapholisha ama-workpieces anobunjwa obuyinkimbinkimbi, futhi ingapholisha ama-workpiece amaningi ngesikhathi esisodwa, ngokusebenza kahle okuphezulu. Inkinga eyinhloko yokupholisha ngamakhemikhali ukulungiswa koketshezi lokupholisha. Ubulukhuni obungaphezulu obutholakala ngokupholisha ngamakhemikhali ngokuvamile bungu-10 μm ambalwa.

Electrolytic polishing

Umgomo oyisisekelo wokupholisha nge-electrolytic uyafana nalowo wokupholisha ngamakhemikhali, okungukuthi, ngokukhetha ukuncibilikisa ama-protrusions amancanyana ebusweni bento yokwenza ubuso bushelelezi. Uma kuqhathaniswa nokupholisha kwamakhemikhali, umphumela wokusabela kwe-cathode ungaqedwa, futhi umphumela ungcono. Inqubo yokupholisha nge-electrochemical ihlukaniswe yaba izinyathelo ezimbili: (1) Ukuleveliswa kwe-Macroscopic Imikhiqizo encibilikisiwe isakazeka ku-electrolyte, futhi ukuhwaqeka kwejiyomethri kwendawo ebonakalayo kuncipha, i-Ra>1μm. ⑵ Izinga lokukhanya okuphansi: I-anode polarization, ukukhanya kwendawo kuyathuthukiswa, Ra<1μm.

Ukupholisha kwe-ultrasonic

Beka i-workpiece ekumisweni okulimazayo bese uyibeka ndawonye ensimini ye-ultrasonic, uthembele kumphumela we-oscillation we-ultrasonic, ukuze i-abrasive igaywe futhi ipholishwe ebusweni bomsebenzi. Imishini ye-Ultrasonic inamandla amancane we-macroscopic futhi ngeke ibangele ukuguqulwa kwe-workpiece, kodwa kunzima ukwenza nokufaka i-tooling. Ukucubungula kwe-Ultrasonic kungahlanganiswa nezindlela zamakhemikhali noma ze-electrochemical. Ngesisekelo sokugqwala kwesisombululo kanye ne-electrolysis, ukudlidliza kwe-ultrasonic kusetshenziswa ukuvusa isixazululo, ukuze imikhiqizo encibilikisiwe ebusweni bomsebenzi wokusebenza ihlukaniswe, futhi ukugqwala noma i-electrolyte eduze kwendawo kufana nomfaniswano; umphumela we-cavitation we-ultrasonic oketshezini ungavimbela inqubo yokugqwala futhi wenze kube lula ukukhanya kwendawo.

Ukupholisha uketshezi

Ukupholisha okuwuketshezi kuncike oketshezini olugeleza ngesivinini esiphezulu kanye nezinhlayiya ezihuquzelayo ezithwalwa yilo ukuze zigeze ingaphezulu lendawo yokusebenza ukuze kufezwe injongo yokupholisha. Izindlela ezivame ukusetshenziswa yilezi: ukucubungula i-jet abrasive, i-liquid jet processing, i-hydrodynamic grinding nokunye. Ukugaya nge-Hydrodynamic kuqhutshwa umfutho we-hydraulic ukwenza uketshezi oluphethe izinhlayiya ezilumayo lugeleze luye emuva naphambili phezu kwendawo yokusebenza ngesivinini esikhulu. I-medium ngokuyinhloko yenziwe ngama-compounds akhethekile (izinto ezinjenge-polymer) ezinokugeleza okuhle ngaphansi kwengcindezi ephansi futhi ixubene nama-abrasives. Ama-abrasives angenziwa nge-silicon carbide powder.

Ukugaya kanye nokupholisha kazibuthe

Ukupholishwa kwe-magnetic abrasive ukusebenzisa ama-abrasive kazibuthe ukwenza amabhulashi abrasive ngaphansi kwesenzo senkundla kazibuthe ukugaya ucezu lokusebenza. Le ndlela inekhwalithi ephezulu yokucubungula, ikhwalithi enhle, ukulawula kalula izimo zokucubungula kanye nezimo ezinhle zokusebenza. Ngokusebenzisa ama-abrasives afanelekile, ukuhwaqeka kwendawo kungafinyelela ku-Ra0.1μm. 2 Ukupholisha ngomshini okusekelwe kule ndlela Ukupholisha okukhulunywa ngakho ekucubunguleni izibungu zepulasitiki kuhluke kakhulu ekucwebezeni okungaphezulu okudingekayo kwezinye izimboni. Ukukhuluma ngokuqinile, ukupholishwa kwesikhunta kufanele kubizwe ngokuthi ukucubungula kwesibuko. Ayinayo nje kuphela izidingo eziphakeme zokuzipholisha ngokwayo, kodwa futhi inezindinganiso eziphakeme zokucwenga kwendawo, ubushelelezi kanye nokunemba kwejometri. Ukupholisha ubuso ngokuvamile kudinga indawo ekhanyayo kuphela. Izinga lokucubungula indawo yesibuko lihlukaniswe ngamaleveli amane: AO=Ra0.008μm, A1=Ra0.016μm, A3=Ra0.032μm, A4=Ra0.063μm. Kunzima ukulawula ngokunembile ukunemba kwejometri kwezingxenye ngenxa yezindlela ezifana nokupholisha nge-electrolytic kanye nokupholisha uketshezi. Kodwa-ke, ikhwalithi engaphezulu yokupholisha kwamakhemikhali, ukupholisha nge-ultrasonic, ukupholishwa kwe-abrasive magnetic nezinye izindlela azifinyeleleki ezidingweni, ngakho-ke ukucubungula kwesibuko sokubunjwa okunembayo kusasebenza ngokuyinhloko ukupholisha ngomshini.