Ngomhla we-17 ku-Epreli, i-7103 Plant ye-Sixth Institute of Aerospace Science and Technology Group yenza uvavanyo oluqhutywa nge-injini ye-oxygen ye-kerosene elulwelo emva kwempompo yesibini yesithuthi sophehlelelo esinendoda yelizwe lam.Uvavanyo lokuqhuba luqaliswe ngokwenkqubo esele imisiwe, kwaye injini yasebenza imizuzwana eyi-10.
I-injini yolu vavanyo lokuqhuba ithatha indawo yokuqala ye-titanium alloy enkulu ye-nozzle thrust room esanda kuphuhliswa kwilizwe lam, enciphisa kakhulu ubunzima be-injini.Indibano ye-injini yonke yamkele iskimu sokuhlanganisa esijijekileyo.Olu vavanyo luqhutywe ngempumelelo luqinisekise ukuba nokwenzeka kweskimu sombhobho we-titanium alloy.
Ngokwesiseko segumbi lokutyhalela le-injini esele likhona, isizukulwana esitsha serokethi ephathwayo yokumpompa ulwelo olungasemva lwe-oxygen injini ye-kerosene iphuhlisa imilomo ye-titanium alloy ukuqonda unxibelelwano olusebenzayo phakathi kwenkqubo ekhoyo ye-thrust ye-copper-steel system kunye ne-titanium-titanium. isakhiwo, kwaye ngakumbi Nciphisa ubunzima injini, ukuphucula ukutyhala-to-mass ratio ye-injini, kunye nokuphucula ukuthwala ngempumelelo umthamo rocket.
Kuxelwa ukuba ekuqaleni kweprojekthi yolu hlobo lwe-injini, ilizwe lam alinamava ekuphuhliseni nasekuveliseni imibhobho ye-titanium alloy enkulu, kwaye yonke into kufuneka "iqalwe ukususela ekuqaleni".Ujongene nophando olunzima kunye nomsebenzi wophuhliso, umzi-mveliso we-7103 useke iqela lophando kunye nophuhliso lwemilomo emikhulu ye-titanium alloy.Phambi kweengxaki zobuchwepheshe emva kwenye, iqela lophando lawuhambisa ngokupheleleyo umoya wokubhabha emajukujukwini, laqhuba uphando lobugcisa ngenkuthalo, laza laqokelela ubulumko bokusombulula iingxaki.Ukuze kuqinisekiswe inkqubela phambili yophuhliso lwe-titanium alloy nozzle, iqela lophando lihlala liququzelela iintlanganiso eziqhelekileyo zokulungelelanisa ngexesha, ukufunda kunye nokujongana neengxaki kunye nobunzima kwinkqubo yophuhliso.
Emva kweminyaka emi-5, iqela lophando liye loyisa ngokulandelelana inani letekhnoloji engundoqo, laphuhlisa ngempumelelo igumbi lokuqala lelizwe lam elinobungakanani obukhulu be-titanium alloy nozzle, laze layisa kuvavanyo njengoko bekucwangcisiwe.Uvavanyo lokunyanzeliswa kwe-unidirectional lwe-TC4 titanium alloy lwenziwa kumatshini wokuvavanya i-Gleeble-3800 ye-thermal simulation yokulinganisa ubushushu obuphezulu bokuziphatha kwe-alloy phantsi kweemeko zoxinzelelo lwe-50%, iqondo lobushushu le-700-900 ℃ kunye izinga loxinzelelo lwe-0.001-1 s-1.
Ubume be-microstructure ye-TC4 ye-titanium alloy emva kovavanyo loxinzelelo lobushushu obuphezulu lwabonwa ngemakroskopu ye-metallographic, inkqubo yokuguqula ikristale ye-TC4 ye-titanium alloy yaphononongwa, kunye nezinto ezichaphazela i-dynamic spheroidization ye-TC4 ye-titanium alloy alloy structure yahlalutywa.Uxinzelelo olubalulekileyo lugqitywe ngokufaka isantya sokuqina komsebenzi kunye nejika loxinzelelo lokuhamba kunye ne-cubic polynomial, kwaye imodeli yekinetic ye-spheroidization yaphononongwa ngokwe-curve yoxinzelelo lwe-TC4 titanium alloy.Iziphumo zibonisa ukuba ukwanda kobushushu be-deformation kunye nokuncipha kwesantya soxinzelelo kukhuthaza inkqubo ye-recrystallization eguqukayo.
Ixesha lokuposa: May-16-2022