Phetoho ea Bokgoni ba ho Seha: Polycrystalline Cubic Boron Nitride (PCBN)
Lipoleiti tse kopantsoeng tsa polycrystalline cubic boron nitride (PCBN) ke thepa ea ho seha e sebetsang hantle e tsejoang ka ho thatafala ha eona ho ikhethang, ho hanyetsa ho tsofala ho ikhethang, le ho tsamaisa mocheso hantle. Litšobotsi tsena li etsa hore PCBN e be e loketseng bakeng sa ho sebetsa ka nepo ha thepa e thata joalo ka letsopa, litšepe tse thata le li-alloy tse thata. Ha li bapisoa le lisebelisoa tsa setso tsa ho seha, Lisebelisoa tsa Pcbn e fana ka ho nepahala le bokgoni bo phahameng ba ho seha, e ntlafatsa tlhahiso haholo mme e fetoha letlotlo la bohlokwa indastering ya tlhahiso.
Pcbn le metsoako PlateLi hahiloe ka substrate e tiileng ea alloy, e nang le phofo e nyane ea cubic boron nitride (CBN), 'me e siloa tlas'a mocheso o phahameng le khatello. CBN e na le bothata bo latelang taemane feela, ka botsitso ba mocheso le khanyetso ea lik'hemik'hale e fetang hōle ea taemane, e leng se etsang hore e be mohanyetsi ea matla ho sebetsaneng le litšepe tse thehiloeng tšepeng. Sena se beha PCBN e le khetho ea bohlokoa lits'ebetsong tsa lisebelisoa tse khorofo le tsa ho seha.
Moralo o ikhethang oa lipoleiti tse kopantsoeng tsa PCBN ha o fane feela ka thata e ikhethang le botsitso ba mocheso empa hape o eketsa ho tiea ka substrate e thata ea alloy, e leng se nolofalletsang ts'ebetso e eketsehileng. Mefuta ea ts'ebeliso ea tsona e pharaletse, e akaretsa mechine e tsoetseng pele ea CNC, lisebelisoa tsa mochini tse iketsang ka botlalo, le mela e iketsang ka lebelo le phahameng. PCBN e sebelisoa haholo ho etseng tšepe e thata, tšepe e batang, litšepe tsa lisebelisoa le likarolo tse entsoeng ka thata, butle-butle e nkela li-alloy tse thata tsa setso le lisebelisoa tsa letsopa sebaka 'me e hlaha e le mokhoa o ka sehloohong indastering ea lisebelisoa tsa ho seha.
1. Boemo ba Hajoale ba Ntlafatso ea Lipoleiti tsa PCBN tse Kopantsoeng
Nts'etsopele ea lisebelisoa tsa PCBN e tsoetse pele haholo libakeng tse kang Europe, Amerika Leboea le Japane, moo sistimi ea tekheniki e seng e holile e thehiloeng. Lihlahisoa li ntse li khetholloa ka ho fapana, ntlafatso ea boleng, le ts'ebetso e ts'oanang. Lipoleiti tsa PCBN tse kopaneng tse tsoang mose ho maoatle hangata li tsitsitse ka bophara bo kaholimo ho 50mm, 'me Element Six e fana ka lihlahisoa tse nang le bophara ba 57mm le 101.6mm ea 'mele e hloekileng ea CBN e sintered (AMB90), e bolokang ho tsofala le ho kheloha ha ts'ebetso ea mocheso ka har'a 30% bakeng sa botsitso bo ikhethang. DI le Sumitomo li fana ka litlhaloso tsa 50.8mm, 58mm, le 64mm, ka ho latellana.
Boreas e atlehile ho hlahisa lipoleiti tsa PCBN tse kopaneng tsa bophara ba 64mm kamora lilemo tsa lipatlisiso, ka boholo ba likaroloana ho tloha ho 2μm ho isa ho 15μm. Re fana ka lihlopha tse fetang 20 tse fapaneng tsa litharollo tse ikhethileng ho fihlela litlhoko tse ikhethileng tsa mochini. Ka ho khetha lipoleiti tsa PCBN tse kopaneng tsa Boreas, u tla ba le keketseho e kholo katlehong ea ho seha le boleng!
Fektheri ea China PCBN (Polycrystalline Cubic Boron Nitride), Moetsi | Boreas (boreasdia.com)