Amathuluzi e-carbide ahlanganisiwe anezinzuzo ezilandelayo:
(1) Izinto zokumboza zesendlalelo sobuso zinobulukhuni obukhulu kakhulu kanye nokumelana nokuguguleka. Uma kuqhathaniswa ne-carbide engamboziwe, i-carbide emboziwe ivumela ukusetshenziswa kwesivinini sokusika esiphezulu, ngaleyo ndlela kuthuthukiswe ukusebenza kahle kokucubungula, noma Kungandisa kakhulu impilo yamathuluzi ngesivinini esifanayo sokusika.
(2) I-coefficient yokungqubuzana phakathi kwezinto ezimboziwe nezinto ezicutshunguliwe incane. Uma kuqhathaniswa ne-carbide engamboziwe, amandla okusika e-carbide emboziwe ancishisiwe ngezinga elithile, futhi ikhwalithi yendawo ecutshunguliwe ingcono.
(3) Ngenxa yokusebenza okuhle okuphelele, ummese we-carbide omboziwe unokuguquguquka okungcono kanye nobubanzi bokusetshenziswa okubanzi. Indlela evame ukusetshenziswa kakhulu yokugqoka i-carbide embozwe nge-cemented iwukubeka i-chemical vapor deposition yokushisa okuphezulu (i-HTCVD). Ukubeka i-plasma chemical vapor deposition (i-PCVD) kusetshenziselwa ukumboza ubuso be-carbide embozwe nge-cemented.
Izinhlobo zokumboza zezinsimbi zokusika ze-carbide eziqinisiwe:
Izinto ezintathu ezivame kakhulu zokumboza yi-titanium nitride (TiN), i-titanium carbonitride (TiCN) kanye ne-titanium aluminide (TiAIN).
Ukugqoka kwe-titanium nitride kungandisa ubulukhuni kanye nokumelana nokuguguleka kobuso bethuluzi, kunciphise i-coefficient yokungqubuzana, kunciphise ukukhiqizwa konqenqema oluhlanganisiwe, futhi kwandise impilo yethuluzi. Amathuluzi agqokwe nge-titanium nitride afanele ukucubungula insimbi engena-alloy ephansi kanye nensimbi engagqwali.
Ubuso bengubo ye-titanium carbonitride bumpunga, ubulukhuni buphakeme kunobo bengubo ye-titanium nitride, futhi ukumelana nokuguguleka kungcono. Uma kuqhathaniswa nengubo ye-titanium nitride, ithuluzi lengubo ye-titanium carbonitride lingacutshungulwa ngesivinini esikhulu sokudla kanye nesivinini sokusika (40% no-60% ngaphezulu kunengubo ye-titanium nitride, ngokulandelana), futhi izinga lokususa izinto zokusebenza liphakeme. Amathuluzi agqokwe yi-titanium carbonitride angacubungula izinto zokusebenza ezahlukahlukene.
Isembozo se-titanium aluminide simpunga noma simnyama. Simbozwe kakhulu phezu kwesisekelo samathuluzi e-carbide aqinisiwe. Sisengacutshungulwa lapho izinga lokushisa lokusika lifinyelela ku-800 ℃. Sifanele ukusika okomile okusheshayo. Ngesikhathi sokusika okomile, ama-chips endaweni yokusika angasuswa ngomoya ocindezelwe. I-titanium aluminide ifanele ukucubungula izinto ezibuthakathaka njengensimbi eqinile, i-titanium alloy, i-nickel-based alloy, i-cast iron kanye ne-silicon alloy ephezulu.
Ukusetshenziswa komshini wokusika i-carbide osimende:
Intuthuko yobuchwepheshe bokumboza amathuluzi ibonakala nasekusebenzisekeni kokufaka i-nano-coating. Ukumboza amakhulu ezingqimba zezinto ezinobukhulu obungama-nanometer amaningana ezintweni eziyisisekelo zamathuluzi kubizwa ngokuthi i-nano-coating. Usayizi wenhlayiya ngayinye yezinto zokufaka i-nano-coating mncane kakhulu, ngakho-ke umngcele wokusanhlamvu mude kakhulu, onobunzima obuphezulu bokushisa okuphezulu. , Amandla nokuqina kokuqhekeka.
Ubulukhuni be-nano-coating be-Vickers bungafinyelela ku-HV2800 ～3000, futhi ukumelana nokuguguleka kuthuthukiswa ngo-5% ～50% kunokwezinto ze-micron. Ngokusho kwemibiko, njengamanje, kuye kwathuthukiswa izendlalelo ezingu-62 zamathuluzi okumboza anezendlalelo ezishintshanayo ze-titanium carbide kanye ne-titanium carbonitride kanye nezendlalelo ezingu-400 zamathuluzi ane-nano-coating e-TiAlN-TiAlN/Al2O3.
Uma kuqhathaniswa nezingubo eziqinile ezingenhla, i-sulfide (MoS2, WS2) embozwe ngensimbi enesivinini esikhulu ibizwa ngokuthi i-soft coating, esetshenziswa kakhulu ekusikeni izinsimbi ze-aluminium ezinamandla aphezulu, izinsimbi ze-titanium kanye nezinye izinsimbi ezingavamile.
Uma unesidingo, sicela uxhumane ne-MSK, sizimisele ukunikeza amathuluzi osayizi ojwayelekile ngesikhathi esifushane kanye nohlelo lwamathuluzi enziwe ngokwezifiso kumakhasimende.
Isikhathi sokuthunyelwe: Septhemba-22-2021
