Musi waKubvumbi 17, 7103 Plant yeSixth Institute of Aerospace Science and Technology Group yakaita bvunzo inomhanya neinjini yeokisijeni yeparafini kuseri kwepombi yechipiri yemotokari yenyika yangu yechizvarwa chitsva. The test run yakatangwa maererano neyakafanotemerwa maitiro, uye injini yakashanda kwemasekonzi gumi.
Injini yeiyi bvunzo inomhanya inotora yekutanga titanium alloy hombe yekukanda kamuri ichangobva kugadzirwa munyika yangu, iyo inoderedza zvakanyanya huremu hweinjini. Iyo yese injini gungano inotora inverted gungano chirongwa. Iyi bvunzo inomhanya yakasimbisa kugona kwetitanium alloy nozzle scheme.
Pahwaro hweiyo iripo injini yekumhanyisa kamuri, chizvarwa chitsva cheanotakura roketi yechipiri pombi yekumashure-inozunguza mvura yeokisijeni parafini injini inogadzira titanium alloy nozzles kuona kubatana kunoshanda pakati peiyo iripo yekukanda kamuri yemhangura-simbi yezvinhu system uye titanium-titanium. chimiro, uyezve Kuderedza huremu hweinjini, kunatsiridza trust-to-mass reshiyo yeinjini, uye kunatsiridza kutakura kunoshanda kweroketi.
Zvinonzi pakutanga kweprojekiti yemhando iyi yeinjini, nyika yangu haina ruzivo mukusimudzira uye kugadzirwa kwehukuru hukuru titanium alloy nozzles, uye zvese zvinoda "kutanga kubva pakutanga". Yakatarisana nebasa rakaoma rekutsvagisa nekusimudzira, fekitori ye7103 yakagadzira timu yekutsvagisa nekusimudzira yetitanium alloy mahombe. Mukutarisana nedambudziko rehunyanzvi mushure meimwe, timu yekutsvagisa yakatakura zvizere mweya wekubhururuka muchadenga, nekushingaira kuita tsvakiridzo yehunyanzvi, uye yakaunganidza huchenjeri hwekugadzirisa matambudziko. Kuti ive nechokwadi chekufambira mberi kwetitanium alloy nozzle, timu yekutsvagisa inogara ichironga misangano yenguva dzose kuronga nenguva, kudzidza uye kubata nematambudziko nematambudziko mukuvandudza maitiro.
Mushure memakore mashanu, timu yekutsvagisa yakakunda zvakatevedzana akati wandei matekinoroji, yakabudirira kusimudzira nyika yangu yekutanga yakakura-saizi titanium alloy nozzle thrust chamber, ndokuiendesa kubvunzo kumhanya sezvayakarongwa. Iyo unidirectional compression kuyedza yeTC4 titanium alloy yakaitwa pamuchina weGleeble-3800 wekuyedza kupisa simulation kuti udzidze yakanyanya tembiricha deformation maitiro eiyo alloy pasi pemamiriro ekumanikidza huwandu hwe50%, tembiricha ye700-900 ℃ uye a. strain rate ye0.001-1 s-1.
Iyo microstructure yeTC4 titanium alloy mushure mekupisa tembiricha yekumanikidza kuyedza yakaonekwa nemetallographic microscope, iyo dynamic recrystallization process yeTC4 titanium alloy yakaongororwa, uye zvinhu zvinokanganisa dynamicization yeTC4 titanium alloy layered chimiro zvakaongororwa. Iyo yakaoma dhizaini yakatemerwa nekukodzera basa rekuomesa chiyero uye kuyerera kudzvinyirira curve ine cubic polynomial, uye iyo spheroidization kinetic modhi yakadzidzwa zvinoenderana neiyo stress-strain curve yeTC4 titanium alloy. Mhedzisiro yacho inoratidza kuti kuwedzera kweiyo deformation tembiricha uye kudzikira kweiyo strain rate inosimudzira iyo dynamic recrystallization process.
Nguva yekutumira: May-16-2022