Pa 11:30 pa Okutobala 19, 2021, injini ya roketi yolimba ya monolithic yodzipangira yokha yokhala ndi mphamvu yayikulu kwambiri padziko lonse lapansi, chiŵerengero chapamwamba kwambiri cha impulse-to-mass, komanso kugwiritsa ntchito bwino zidayesedwa bwino ku Xi'an, zomwe zikusonyeza kuti mphamvu ya China yonyamula zolemera yakwaniritsidwa kwambiri. Kukweza ndikofunikira kwambiri pakulimbikitsa chitukuko cha ukadaulo wa magalimoto akuluakulu komanso olemera mtsogolo.
Kupanga bwino kwa injini zolimba za roketi sikuti kumangosonyeza khama ndi nzeru za asayansi ambiri, komanso sikungatheke popanda zopereka za mankhwala ambiri monga zinthu za tungsten ndi molybdenum.
Injini ya roketi yolimba ndi injini ya roketi ya mankhwala yomwe imagwiritsa ntchito propellant yolimba. Imakhala ndi chipolopolo, tinthu tating'onoting'ono, chipinda choyaka moto, nozzle assembly, ndi chipangizo choyatsira moto. Ikayaka, chipinda choyaka moto chiyenera kupirira kutentha kwakukulu kwa madigiri pafupifupi 3200 ndi kuthamanga kwakukulu kwa pafupifupi 2×10^7bar. Poganizira kuti ndi chimodzi mwa zigawo za chombocho, ndikofunikira kugwiritsa ntchito zipangizo zopepuka za alloy zotentha kwambiri monga zopangidwa ndi alloy yochokera ku molybdenum kapena alloy yochokera ku titanium.
Aloyi yochokera ku molybdenum ndi aloyi yopanda chitsulo yopangidwa powonjezera zinthu zina monga titaniyamu, zirconium, hafnium, tungsten ndi rare earths yokhala ndi molybdenum ngati matrix. Ili ndi kukana kutentha kwambiri, kukana kuthamanga kwambiri komanso kukana dzimbiri, ndipo ndi yosavuta kuikonza kuposa tungsten. Kulemera kwake ndi kochepa, kotero ndikoyenera kugwiritsidwa ntchito m'chipinda choyaka moto. Komabe, kukana kutentha kwambiri ndi zinthu zina za aloyi yochokera ku molybdenum nthawi zambiri sizikhala zabwino ngati aloyi yochokera ku tungsten. Chifukwa chake, zigawo zina za injini ya roketi, monga ma liners am'mero ndi machubu oyatsira moto, zimafunikabe kupangidwa ndi zinthu za aloyi yochokera ku tungsten.
Chipinda cha pakhosi ndi chinthu chomwe chimapangidwa pakhosi pa nozzle ya injini yolimba ya rocket. Chifukwa cha malo ogwirira ntchito ovuta, chiyeneranso kukhala ndi mawonekedwe ofanana ndi zinthu zomwe zili m'chipinda chamafuta ndi zinthu zomwe zimayatsira moto. Nthawi zambiri zimapangidwa ndi zinthu zopangidwa ndi mkuwa wa tungsten. Zinthu zopangidwa ndi mkuwa wa Tungsten ndi zinthu zopangidwa ndi chitsulo zomwe zimazizira thukuta lokha, zomwe zimatha kupewa kusintha kwa voliyumu ndi kusintha kwa magwiridwe antchito kutentha kwambiri. Mfundo yoziziritsira thukuta ndi yakuti mkuwa womwe uli mu alloy udzasungunuka ndi kusungunuka kutentha kwambiri, zomwe zidzatenga kutentha kwambiri ndikuchepetsa kutentha kwa pamwamba pa chinthucho.
Chubu choyatsira moto ndi chimodzi mwa zinthu zofunika kwambiri pa chipangizo choyatsira moto cha injini. Nthawi zambiri chimayikidwa mumphuno mwa choyatsira moto, koma chimayenera kulowa mkati mwa chipinda choyatsira moto. Chifukwa chake, zinthu zomwe zili mkati mwake zimafunika kuti zikhale ndi kukana kutentha kwambiri komanso kukana kuwononga mpweya. Ma alloy ochokera ku tungsten ali ndi zinthu zabwino kwambiri monga kusungunuka kwamphamvu, mphamvu yayikulu, kukana kugwedezeka, komanso kukulitsa mphamvu pang'ono, zomwe zimapangitsa kuti zikhale chimodzi mwa zinthu zomwe zimagwiritsidwa ntchito popanga machubu oyatsira moto.
Zikuoneka kuti makampani opanga tungsten ndi molybdenum athandiza kuti mayeso a injini ya roketi yolimba apambane! Malinga ndi Chinatungsten Online, injini yoyeserayi idapangidwa ndi Fourth Research Institute of China Aerospace Science and Technology Corporation. Ili ndi mainchesi 3.5 m'mimba mwake komanso mphamvu yokwana matani 500. Ndi ukadaulo wapamwamba monga ma nozzles, magwiridwe antchito onse a injiniyi afika pamlingo wotsogola padziko lonse lapansi.
Ndikoyenera kunena kuti chaka chino China yachita zombo ziwiri zonyamula anthu. Ndiko kuti, pa 9:22 pa June 17, 2021, roketi ya Long March 2F yonyamula chombo cha Shenzhou 12 yonyamula anthu inayambitsidwa. Nie Haisheng, Liu Boming, ndi Liu Boming anayambitsidwa bwino. Tang Hongbo anatumiza oyenda mumlengalenga atatu; pa 0:23 pa October 16, 2021, roketi ya Long March 2 F Yao 13 yonyamula chombo cha Shenzhou 13 yonyamula anthu inayambitsidwa bwino ndipo inanyamula Zhai Zhigang, Wang Yaping, ndi Ye Guangfu mumlengalenga. Inatumizidwa mumlengalenga.
Nthawi yotumizira: Disembala-19-2021