Masiqhubeke nokwethula yonke inqubo yobuchwepheshe be-Metal Injection Molding.
Namuhla sizoxoxa mayelana nokucula okungamaphuzu abaluleke kakhulu ngesikhathi seMIM.
ULWAZI OLUYISISEKELO LOKUSINA
I-1) I-Sintering ukushisa nokuzwa i-powder compact ezingeni lokushisa eliphansi kunephuzu lokuncibilika lezingxenye zalo eziyinhloko, bese liyipholisa ngendlela ethile nangesivinini, ngaleyo ndlela ithuthukise i-strenth kanye nezakhiwo ezihlukahlukene zomzimba nemishini ye-compact kanye nokuthola. isakhiwo esithile se-metallographic.
2) Inqubo eyisisekelo i-Powder compact–Furnace Charging–Sintering kuhlanganise Preheating, Heat Preservation and Cooling–Firing–Sintered products.
3) Umsebenzi we-sintering ukuthola ukususwa kwe-lubricant, i-metallurgical bonding, i-element diffusion, izinguquko ze-dimensional, i-microstructure kanye nokuvimbela i-ocidation.
ISINGENISO OMFUSHANE SENQUBO YOKUSAYIBA
1) Izinga lokushisa eliphansi Isiteji sangaphambi kwe-sintering:
Kulesi sigaba, ukubuyiswa kwensimbi, ukuvuthwa kwegesi ye-adsorbed kanye nomswakama, ukubola nokususwa kwe-ejenti eyakhayo ku-compact.
2) Isiteji sokushisa esimaphakathi sokushisa:
I-recrystallization iqala kulesi sigaba.Okokuqala, izinhlamvu zekristalu ezikhubazekile zibuyiselwa ngaphakathi kwezinhlayiya futhi zihlelwe kabusha zibe izinhlamvu ezintsha zekristalu.Ngesikhathi esifanayo, ama-oxide ebusweni bezinhlayiya ancishiswa ngokuphelele, futhi i-interface yezinhlayiyana yenza intamo ye-sintering.
I-3) Ukugcinwa kwezindlebe zesikhathi eside ukuze kuqedelwe isigaba sokufaka:
Lesi sigaba siyinqubo eyinhloko ye-sintering, njengokusabalalisa nokugeleza okuqhubekayo futhi sekuseduze nokuqedwa, kwakha inqwaba yezimbotshana ezivaliwe, nokuqhubeka nokuncipha, ukuze usayizi wangaphambili kanye nenani eliphelele lama-pores kuncishiswe, futhi ukuminyana. umzimba sintered anda kakhulu.
4) Isiteji sokupholisa:
Inqubo ye-sintering yangempela iyi-sintering eqhubekayo, ngakho-ke inqubo esuka emazingeni okushisa e-sintering ukuze iphuze ukupholisa isikhathi esithile bese ipholisa ngokushesha kuze kube yilapho ukukhishwa kwesithando somlilo kufinyelela ekamelweni lokushisa futhi kuyisiteji lapho i-austenite ibola khona futhi isakhiwo sokugcina siyakhiwa kancane kancane.
Kunezici eziningi ezinomthelela ezithinta inqubo ye-sintering.Futhi izici ezihlanganisa izinga lokushisa, isikhathi, umkhathi, ukwakheka kwezinto, indlela yengxubevange, okuqukethwe kwe-lubricant kanye nenqubo ye-sintering efana nezinga lokushisa nokupholisa.Kungabonakala ukuthi isixhumanisi ngasinye sinethonya elibalulekile kukhwalithi ye-sintering.Ngemikhiqizo enezakhiwo ezahlukene kanye nama-powder ahlukene, imingcele ehlukene idinga ukulungiswa.
Isikhathi sokuthumela: Jan-15-2021