Isici esibalulekile sokusebenza okungabizi kakhulu kwesithando somlilo se-vacuum sintering ukusetshenziswa kwezomnotho kwegesi yenqubo namandla.Ngokwezinhlobo ezahlukene zegesi, lezi zingxenye ezimbili zezindleko zenqubo ye-sintering zingabalelwa ku-50% wesamba sezindleko.Ukuze kongiwe ukusetshenziswa kwegesi, imodi yokucindezela ingxenye yegesi eguquguqukayo kufanele isetshenziswe ukuze kuqinisekiswe ukuthi izinqubo zokukhipha amafutha kanye ne-sintering zikhululekile ekungcoleni.Ukuze kuncishiswe ukusetshenziswa kwamandla, izinto zokushisisa ezithuthukisiwe zisetshenziselwa ukukhiqiza izindawo ezishisayo ukuze kwehliswe ukulahlekelwa ukushisa.Ukuze uthole lawa maphuzu edizayini futhi ulawule izindleko ze-R & D phakathi kwebanga elinengqondo, isithando somlilo sesimanje esilondoloza izinsiza sizosebenzisa amathuluzi okubala we-hydrodynamic ukuze kutholwe ukugeleza komoya okuphelele nemodi yokugeleza kokushisa.
Ukusebenza kwezinhlobo ezahlukene zesithando somlilo
Ngaphandle kwesistimu eyenziwe ngokwezifiso futhi ekhetheke kakhulu, izithando zomlilo eziningi emakethe zingahlukaniswa zibe isithando somlilo se-vacuum ngezikhathi ezithile kanye nesithando somlilo esiqhubekayo.Izingxenye ezinsundu ngemuva kokubunjwa komjovo kanye ne-catalytic / degreasing ziqukethe i-polymer esele.Zombili izinhlobo zesithando somlilo zihlinzeka ngohlelo lokukhishwa okushisayo kwe-polymer.
Ngakolunye uhlangothi, kufaneleka kakhulu ukusebenzisa ngokugcwele isithando somlilo esiqhubekayo uma siyingxenye enkulu enokukhiqizwa kwenqwaba okungaguquki ngokuphelele noma ukuma okufanayo.Kulokhu, ngomjikelezo omfushane kanye nomthamo ophezulu we-sintering, inani elifanele lezindleko-inzuzo lingatholakala.Kodwa-ke, emigqeni yokukhiqiza emincane naphakathi, lesi sithando somlilo esiqhubekayo esinomphumela omncane wonyaka we-150-200t, izindleko zokufakwayo eziphezulu kanye nevolumu enkulu akukona ukonga.Ngaphezu kwalokho, isithando somlilo esiqhubekayo sidinga isikhathi eside sokuvala shaqa, okunciphisa ukuguquguquka kokukhiqiza.
Ngakolunye uhlangothi, i-periodic vacuum sintering furnace inobuchwepheshe obuvelele bokulawula inqubo yokwehlisa amafutha.Imikhawulo okukhulunywe ngayo ngaphambili, okuhlanganisa ukuwohloka kwejometri nokubola kwamakhemikhali ezingxenyeni ze-MIM, kungaxazululwa ngempumelelo.Isixazululo esisodwa ukugeza izinto ezibophezelayo eziguquguqukayo ngegesi yenqubo ye-laminar ngokusebenzisa isistimu yokulawula igesi enembile.Ngaphezu kwalokho, ngokunciphisa umthamo wendawo eshisayo, ukufana kwezinga lokushisa kwesithando somlilo kuhle kakhulu, kuze kufike ku-LK.Ngokuvamile, isithando somlilo sinokuhlanzeka okuhle komkhathi, imingcele yenqubo eguquguqukayo yesithando somlilo esiphezulu se-vacuum sintering kanye nokudlidliza kwengxenye encane, okwenza kube ukukhetha kobuchwepheshe ukukhiqizwa kwezingxenye ezisezingeni eliphezulu (njengamadivayisi ezokwelapha).Izinkampani eziningi zibhekana nama-oda ashintshashintshayo futhi zidinga ukukhiqiza izingxenye ezinokwakheka nezinto ezihlukile.Okokufaka okuphansi kanye nokuguquguquka komjikelezo ophezulu wesithando somlilo se-vacuum sintering kuzodala izimo ezivumayo kubo.Ukugijima kweqembu leziqhumiso ze-vacuum akukwazi nje ukunikeza imigqa yokukhiqiza engaphezulu, kodwa futhi kuqhube izinqubo zezinqubo ezahlukene ngesikhathi esisodwa.
Kodwa-ke, amanye amafurnashi e-vacuum sintering asebenzayo anezinzuzo zobuchwepheshe ezingenhla anqunyelwe umthamo omncane otholakalayo.Ukungalungi kwabo esilinganisweni sokuphumayo nokusetshenziswa kwamandla aphansi kwenza izindleko ze-sintering zezingxenye zinciphise izindleko ezilondolozwe kwenye i-MIM pr.
Isikhathi sokuthumela: May-07-2022