N'April 17, Plant 7103 nke ụlọ ọrụ nke isii nke Aerospace Science and Technology Group mere nnwale nnwale na igwe ikuku oxygen kerosene n'azụ mgbapụta nke abụọ nke ụgbọ ala ọgbara ọhụrụ nke obodo m.A malitere ịgba ọsọ ule dị ka usoro a kara aka, ma injin ahụ na-arụ ọrụ maka 10 sekọnd.
Njin nke nnwale nnwale a na-anabata ụlọ mbụ titanium alloy nnukwu nozzle thrust ụlọ emepụtara ọhụrụ na mba m, nke na-ebelata ịdị arọ nke injin ahụ nke ukwuu.Nzukọ engine dum na-anabata atụmatụ mgbakọ tụgharịrị.Nnwale ule a gosipụtara nke ọma na ọ ga-ekwe omume nke atụmatụ nozzle titanium alloy.
Na ndabere nke dị ugbu a engine ntinye ụlọ, ọhụrụ ọgbọ nke manned ụgbọelu rọketi nke abụọ mgbapụta n'azụ-swing mmiri oxygen kerosene engine na-emepụta titanium alloy nozzles iji ghọta njikọ dị irè n'etiti ihe ntinye ụlọ ọla kọpa-steel na titanium-titanium. Nhazi, na n'ihu Wetulata ibu nke injin ahụ, melite oke mkpali na oke nke injin ahụ, ma melite ikike ibu rọketi dị irè.
A na-akọ na na mmalite nke oru ngo nke ụdị engine a, mba m enweghị ahụmahụ na mmepe na mmepụta nke nnukwu titanium alloy nozzles, na ihe niile kwesịrị "malite site na ọkọ".N'ịbụ ndị chere ọrụ nyocha na mmepe siri ike ihu, ụlọ ọrụ 7103 guzobere otu nyocha na mmepe maka titanium alloy nnukwu nozzles.N'ime otu nsogbu nke teknụzụ na-aga n'ihu, ndị ọrụ nyocha ahụ na-aga n'ihu n'ụzọ zuru oke mmụọ nke ụgbọ elu mbara igwe, na-arụsi ọrụ ike nyocha teknụzụ, ma nweta amamihe iji dozie nsogbu.Iji hụ na ọganihu mmepe nke titanium alloy nozzle, ndị na-eme nchọpụta na-ahazi mgbe nile nzukọ na-ahazi na oge, na-amụ ma na-edozi nsogbu na nsogbu na usoro mmepe.
Mgbe afọ 5 gachara, ndị otu nyocha ahụ ejirila nke ọma merie ọtụtụ teknụzụ isi, rụpụta nke ọma na obodo m nke mbụ nnukwu nnukwu ọnụ ahịa titanium alloy nozzle thrust ụlọ, wee nyefee ya n'ule nnwale dị ka emebere ya.Emere nnwale mkpakọ unidirectional nke TC4 titanium alloy na igwe nyocha thermal simulation Gleeble-3800 iji mụọ omume nrụrụ okpomọkụ dị elu nke alloy n'okpuru ọnọdụ mkpakọ nke 50%, okpomọkụ nke 700-900 ℃ na a ọnụọgụ nke 0.001-1 s-1.
Achọpụtara microstructure nke TC4 titanium alloy mgbe nnwale mkpakọ okpomọkụ dị elu site na microscope metallographic, a na-enyocha usoro recrystallization nke TC4 titanium alloy, na ihe ndị na-emetụta spheroidization ike nke TC4 titanium alloy layered enyochala.Achọpụtara nsogbu ahụ dị oke egwu site na ịkwado ọnụọgụ ike ọrụ yana usoro nrụgide na-erugharị na cubic polynomial, a na-amụkwa ụdị spheroidization kinetic dịka usoro mgbakasị ahụ nke TC4 titanium alloy si dị.Nsonaazụ na-egosi na mmụba nke okpomọkụ nrụrụ na mbelata nke ọnụọgụ ahụ na-akwalite usoro recrystalization dị ike.
Oge nzipu: Mee-16-2022