Tšebeliso ea PCD ho machining

2. Tšebeliso ea lisebelisoa tse thata tsa lisebelisoa ho machining

(1) Tšebeliso ea lisebelisoa tsa daemane e le 'ngoe ea kristale
Taemane e le 'ngoe ea kristale hangata e arotsoe ka daemane ea maiketsetso le taemane ea tlhaho.Ka kakaretso, haeba daemane e le 'ngoe ea kristale e sebelisoa ho etsa sesebelisoa, hoa hlokahala ho khetha daemane e nang le boholo bo boholo ba likaroloana, boima bo fetang 0.1 g le bophara ba bophara bo fetang 3 mm.Hona joale, taemane ea tlhaho ke ntho e thata ka ho fetisisa ea liminerale.Ha e na feela ho hanyetsa ho apara hantle, empa hape sesebelisoa se entsoeng ka eona se bohale haholo.Ka nako e ts'oanang, e na le khanyetso e phahameng ea ho khomarela le conductivity e tlaase ea mocheso.Sesebelisoa se sebetsitsoeng se boreleli ebile se boleng bo botle.Ka nako e ts'oanang, sesebelisoa se entsoeng ka daemane ea tlhaho se na le nako e ntle haholo le bophelo bo bolelele ba tšebeletso.Ho phaella moo, ha u khaola nako e telele, e ke ke ea ama ts'ebetso ea likarolo.The e batlang e le tlaase mocheso conductivity ka ba le phello e ntle ho thibela deformation ea likarolo.

Taemane ea tlhaho e na le melemo e mengata.Le hoja melemo ena e theko e boima, e ka finyella litlhoko tsa mekhoa e mengata ea ho itšeha ka mokhoa o nepahetseng haholo 'me e sebelisoa haholo ho itšeha ka mokhoa o nepahetseng le ho itšeha ka mokhoa o hlakileng.Joalo ka liipone tse bonts'ang tse sebelisang li-reactor tsa athomo le mahlale a mang a tsoetseng pele, hammoho le li-gyroscope tsa ho tsamaea fatše tse sebelisoang ho limisaele kapa lirokete, hammoho le likarolo tse ling tsa oache, lisebelisoa tsa tšepe, joalo-joalo, li sebelisitse theknoloji ena.

(2) Tšebeliso ea lisebelisoa tsa daemane tsa polycrystalline

Polycrystalline diamond hangata e bitsoa sintered diamond.Tšebeliso ea daemane ea polycrystalline bakeng sa litšepe tse kang cobalt, ka mocheso o phahameng le maemo a khatello e phahameng, e tla etsa hore daemane e ngata e le 'ngoe ea kristale ea phofo ea polycrystalline e be e le' ngoe, kahoo e etsa lisebelisoa tsa lisebelisoa tsa polycrystalline.Boima ba daemane ea polycrystalline bo tlase ho feta taemane ea tlhaho.Leha ho le joalo, e entsoe ka mefuta e sa tšoaneng ea phofo ea daemane, 'me ha ho na taba ea hore lifofane tse fapaneng tsa kristale li na le matla a fapaneng le boima.Ha u itšeha, moeli oa ho itšeha o entsoeng ka daemane ea polycrystalline o na le khanyetso e phahameng haholo ea tšenyo ea kotsi le ho hanyetsa ho apara hantle.E ka boloka moeli o sehang o le bohale ka nako e telele.Ka nako e ts'oanang, e ka sebelisa lebelo le batlang le potlakile ha le etsa machining.Ha ho bapisoa le lisebelisoa tsa carbide tse entsoeng ka samente ea WC, lisebelisoa tsa taemane tsa polycrystalline li na le bophelo bo bolelele ba ts'ebeletso, phihlello e bonolo ea thepa ea maiketsetso le litheko tse tlase.

(3) Tšebeliso ea daemane ea CVD

Thepa ea lisebelisoa tsa daemane ea CVD e sebetsoa tlas'a khatello e tlase, e leng phapang e kholo ho tloha ho theknoloji ea setso ea PSC le theknoloji ea PDC.Taemane ea CVD ha e na karolo ea catalyst.Le hoja e tšoana le daemane ea tlhaho libakeng tse ling, e ntse e tšoana le daemane ea polycrystalline ka thepa, ke hore, lithollo tsa motsoako li hlophisoa ka mokhoa o sa laoleheng, ho haella ha brittle cleavage surface, 'me li na le thepa e tšoanang pakeng tsa bokaholimo.Ha ho bapisoa le lisebelisoa tse entsoeng ke theknoloji ea setso, lisebelisoa tse entsoeng ke theknoloji ea daemane ea CVD li na le melemo e mengata, e kang sebōpeho sa sesebelisoa se rarahaneng, theko e tlaase ea tlhahiso, le mahare a mangata a lehare le le leng.

(4) Tšebeliso ea polycrystalline cubic boron nitride

Polycrystalline cubic boron nitride (PCBN) ke sesebelisoa se thata se atileng haholo, se sebelisoang haholo machining.Sesebelisoa se entsoeng ka theknoloji ena se na le thata e babatsehang le ho hanyetsa ho roala.E ke ke ea sebelisoa feela ka mocheso o batlang o le holimo, empa hape e na le khanyetso e ntle ea kutu le conductivity ea mocheso.Ha ho bapisoa le lisebelisoa tsa PCD le PDC, lithulusi tsa polycrystalline cubic boron nitride li ntse li le tlase ka ho hanyetsa ho apara, empa li ka sebelisoa ka tloaelo ho 1200 ℃ 'me li ka mamella ho bola ha lik'hemik'hale tse itseng!

Hajoale, polycrystalline cubic boron nitride e sebelisoa haholo tlhahisong ea likoloi, joalo ka lienjine tsa makoloi, li-transmission shafts, le brake discs.Ho feta moo, hoo e ka bang karolo ea bohlano ea lisebelisoa tse boima tsa lisebelisoa le tsona li sebelisa theknoloji ena.Lilemong tsa morao tjena, ka tsoelo-pele ea theknoloji ea k'homphieutha le theknoloji ea mochine oa CNC, tšebeliso ea polycrystalline cubic boron nitride e se e atile ka ho eketsehileng, 'me ka ts'ebetsong ea likhopolo tse tsoetseng pele tsa machining tse kang ho itšeha ka lebelo le phahameng, ho reteleha ho e-na le ho sila, sesebelisoa. thepa ea polycrystalline cubic boron nitride butle-butle e tsoetse pele ho ba sesebelisoa sa bohlokoa ts'ebetsong ea sejoale-joale ea ho fetola.