Vim li cas xaiv cov khoom siv graphite rau foob pob hluav taws nozzles?
Kev ua haujlwm ntawm lub foob pob hluav taws yog cov txheej txheem nyuaj, uas cov khoom ua si lawv lub luag haujlwm thaum lub foob pob hluav taws tawg. Lub nozzle yog qhov kawg thiab tseem ceeb tshaj plaws ntawm lub foob pob hluav taws tawg. Nws yog lub luag haujlwm tseem ceeb rau kev taw qhia cov dej ntws ntawm cov roj hluav taws xob uas tsim los ntawm lub cav combustion, generating thrust thiab propelling lub foob pob hluav taws. Muaj ntau ntau cov ntaub ntawv los ua cov nozzles, tab sis graphite yog cov khoom ntawm kev xaiv vim nws cov khoom siv zoo heev, tiv thaiv tshav kub, thiab sib haum nrog foob pob hluav taws roj.
Graphite qhov kub tsis kam, ua ke nrog nws cov thermal conductivity zoo heev thiab qis thermal expansion coefficient, ua rau nws cov khoom xaiv rau kev tsim foob pob hluav taws nozzles. Graphite tuaj yeem tiv taus qhov kub thiab txias heev yam tsis muaj qhov cuam tshuam loj lossis thermal expansion, uas yog ib qho tseem ceeb kom ntseeg tau tias lub nozzle tswj nws cov qauv kev ncaj ncees thiab cov duab thaum lub sij hawm kub kub combustion txheej txheem. Tsis tas li ntawd, graphite lub siab thermal conductivity ua kom ntseeg tau tias cov cua sov tsim thaum lub sij hawm combustion yog zoo dissipated, yog li txo qhov kev pheej hmoo ntawm thermal degradation thiab puas.
Lwm cov cuab yeej tseem ceeb ntawm graphite uas ua rau nws yog ib qho khoom siv zoo tshaj plaws rau lub foob pob hluav taws yog nws lub zog thiab lub zog. Graphite muaj lub zog tensile siab heev, uas txhais tau hais tias nws tsis yooj yim rau kev tawg, deforming lossis tawg. Cov cuab yeej no yog qhov tseem ceeb hauv kev tsim cov foob pob ua ntxaij nozzles, uas muaj kev ntxhov siab heev thaum lub sijhawm ua haujlwm, xws li kev kub siab, kev vibrations thiab kev poob siab. Graphite lub peev xwm los tiv thaiv cov kev ntxhov siab no ua kom ntseeg tau, ua haujlwm tau zoo ntawm lub foob pob hluav taws cav.
Thaum kawg, graphite yog cov khoom siv sib xws nrog cov roj foob pob hluav taws siv hauv cov tshuab foob pob hluav taws. Cov roj foob pob hluav taws yog cov reactive thiab corrosive, uas txhais tau hais tias lawv tuaj yeem ua rau muaj kev puas tsuaj loj rau lub nozzles, ua rau lub cav tsis ua haujlwm. Graphite muaj tshuaj zoo heev thiab thermal stability uas tiv thaiv nws los ntawm degrading thaum raug foob pob ua ntxaij roj, ua rau nws cov khoom zoo meej rau kev ua foob pob ua ntxaij nozzles.
Nyob rau hauv cov ntsiab lus, graphite yog cov khoom ntawm kev xaiv rau kev tsim foob pob ua ntxaij nozzles vim nws cov khoom siv zoo heev, ua haujlwm kub, thiab sib haum nrog foob pob hluav taws roj. Raws li qhov chaw tshawb nrhiav kev lag luam nthuav dav, qhov xav tau rau kev txhim khu kev qha, kev ua tau zoo, kev ua haujlwm siab ntawm lub foob pob hluav taws yuav nce, thiab graphite yuav yog cov khoom ntawm kev xaiv rau foob pob hluav taws nozzles.
