Izindaba

I-Metal Injection Molding (MIM) uhlobo olusha lobuchwepheshe be-Powder metallurgy, oluthuthukiswe kusukela ekubumbeni kwe-powder injection (PIM) yezingxenye ze-ceramic. Izinyathelo eziyinhloko zokukhiqiza ze-Metal Injection Molding yilezi ezilandelayo: ukuxuba i-metal powder kanye ne-binder-granulation-injection molding-degreasing-sintering-subsequent treatment-subsequent treatment-final product, ubuchwepheshe bufanelekela ukukhiqizwa okuncane, okuyinkimbinkimbi, nokusebenza okuphezulu kwe-Powder metallurgy izingxenye, njengalezo ezisetshenziswa imboni yamawashi aseSwitzerland ukwenza izingxenye zamawashi. Emashumini eminyaka amuva nje, ubuchwepheshe be-MIM buthuthuke ngokushesha, izinto ezisebenzayo zifaka: i-Fe-Ni alloy, insimbi engagqwali, insimbi yamathuluzi, i-high specific gravity alloy, i-cemented carbide, i-titanium alloy, i-ni-based superalloy, i-intermetallic compound, i-alumina, i-zirconia njalonjalo. Ubuchwepheshe be-Metal Injection Molding (MIM) budinga ukuthi usayizi wezinhlayiya ze-powder ungaphansi kwe-micron futhi ukuma kucishe kube yindilinga. Ngaphezu kwalokho, kudingeka ubuningi obukhululekile, ubuningi obudlidlizayo, isilinganiso sobude nobubanzi, i-natural slope angle kanye nokusatshalaliswa kosayizi wezinhlayiya. Njengamanje, izindlela eziyinhloko zokukhiqiza impuphu yobuchwepheshe bokubumba umjovo wensimbi yi-atomization yamanzi, i-atomization yegesi kanye nendlela yeqembu le-carbonyl. Izinhlobo zempuphu ezisetshenziswa kakhulu zokujova izinsimbi zensimbi engagqwali yilezi: 304L, 316L, 317L, 410L, 430L, 434L, 440A, 440C, 17-4PH, njll. . Inqubo ye-atomization yamanzi imi kanje: ukukhethwa kwezinto zokusetshenziswa zensimbi engagqwali - ukuncibilika kokufakwa kwesithando somlilo esimaphakathi - ukulungiswa kokwakheka - ukususwa kwe-oxidation kanye nokususwa kwe-slag - ukutholwa kwekhwalithi - ukuhlolwa - ukupakishwa kanye nokugcinwa, imishini eyinhloko esetshenziswayo yile: isithando somlilo sokungenisa esimaphakathi, ipompo yamanzi enomfutho ophezulu, idivayisi yokugaya evaliwe, ithangi lamanzi elijikelezayo, imishini yokuhlola nokupakisha, imishini yokuhlola.

Inqubo yei-atomization yegesikanje:

ukukhetha izinto zokusetshenziswa zensimbi engagqwali - ukuncibilika kwesithando sokufakelwa imvamisa ephakathi nendawo - ukulungiswa kokwakheka - ukususwa kwe-oxidation kanye ne-slag - ukukhishwa kwe-atomization kanye ne-pulverization - ukutholwa kwekhwalithi yokuhlola nokugcina. Imishini eyinhloko esetshenziswayo yile: isithando sokufakelwa imvamisa ephakathi nendawo, umthombo we-nitrogen kanye nedivayisi ye-atomization, ithangi lamanzi elijikelezayo, imishini yokuhlola nokupakisha, imishini yokuhlola. Indlela ngayinye inezinzuzo nezinkinga zayo: Ukumiswa kwamanzi kuyinqubo eyinhloko yokugaya, ukusebenza kwayo okuphezulu, ukukhiqizwa okukhulu kuyonga kakhulu, kungenza i-powder ibe yinhle, kodwa ukuma kwayo akujwayelekile, okuvumela ukulondolozwa kwesimo, kodwa i-binder esetshenziswa kakhulu, ithinta ukunemba. Ngaphezu kwalokho, ifilimu ye-oxidation eyakhiwe ukusabela kwamanzi nensimbi ekushiseni okuphezulu kuvimbela ukubola. Ukumiswa kwegesi kuyindlela eyinhloko yokukhiqiza i-powder yobuchwepheshe bokubumba umjovo wensimbi. Impuphu ekhiqizwa yi-atomization yegesi iyindilinga, inezinga eliphansi le-oxidation, idinga i-binder encane futhi iyakwazi ukwakheka kahle, kodwa isivuno sempuphu ecolekile kakhulu siphansi, intengo iphezulu futhi isici sokugcina ukuma asisihle, i-c, i-N, i-H, i-O ku-binder inomthelela emzimbeni osikiwe. Impuphu ekhiqizwa ngendlela ye-carbonyl iphezulu ngobumsulwa, izinzile ekuqaleni futhi incane kakhulu ngobukhulu bezinhlayiya. Ifaneleka kakhulu kwi-MIM, kodwa kuphela kuma-Fe, i-Ni kanye nezinye izinhlayiya, ezingakwazi ukuhlangabezana nezidingo zezinhlobo. Ukuze kuhlangatshezwane nezidingo zempuphu yokubumba insimbi, izinkampani eziningi zithuthukise izindlela ezingenhla futhi zathuthukisa izindlela ze-micro-atomization kanye ne-laminar atomization. Manje kuvame ukusetshenziswa okuxubile ngempuphu ye-atomized yamanzi kanye nempuphu ye-atomized yegesi, eyakuqala ukuthuthukisa ubuningi bokuxinana, eyakamuva ukugcina ukuma. Njengamanje, ukusebenzisa i-atomizer powder yamanzi kungakhiqiza nomzimba osikiwe onobukhulu obungaphezu kuka-99%, ngakho-ke kuphela i-atomizer powder yamanzi esetshenziselwa izingxenye ezinkulu, kanti i-atomizer powder yegesi esetshenziselwa izingxenye ezincane. Eminyakeni emibili edlule, i-Handan Rand Atomizing Pulverizing Equipment Co., Ltd. ithuthukise uhlobo olusha lwemishini yokugaya i-atomizing, engakwazi nje ukuqinisekisa ukukhiqizwa okukhulu kwe-atomizing yamanzi kanye ne-ultrafine powder, kodwa futhi icabangele izinzuzo zesimo se-powder esiyindilinga.