Yuav ua li cas cov qauv tsim ntawm ntau- txheej Mo1 molybdenum phaj tshav kub shields cuam tshuam rau lawv qhov siab- kub rwb thaiv tsev kev ua haujlwm?
Los ntawm qhov kev xav ntawm thermal engineering thiab cov ntaub ntawv thov, kev rwb thaiv tsev ntawm ntau- txheejMo1 molybdenum phajThaum tshav kub kub shields yog txiav txim los ntawm cov khoom vaj tse, cov yam ntxwv tsis, thiab cov txheej txheem txheej txheem. Cov txheej txheem tseem ceeb ntawm kev cuam tshuam tuaj yeem tawg mus rau hauv cov ntsiab lus tseem ceeb hauv qab no:
1. Qhov yuav tsum tau muaj rau cov khoom purity thiab deg mob
Mo1 molybdenum daim hlau yuav tsum ua kom tau raws li qhov xav tau ntawm purity ntau dua lossis sib npaug li 99.95% hauv GB / T 38756-2020 tus qauv, nrog cov pa oxygen tsawg dua lossis sib npaug rau 0.015% thiab cov ntsiab lus nitrogen tsawg dua lossis sib npaug rau 0.005%, kom tsis txhob muaj impurities ua kom qis dua {7} theem siab ua tsis tiav. Polishing kev kho mob nrog ib tug deg roughness Ra tsawg dua los yog sib npaug zos rau 0.8μm yuav ua rau kom lub thermal radiation reflectivity ntawm 85% ntawm zoo tib yam ntxhib nto mus rau ntau tshaj 92%, txo cov hluav taws xob hluav taws xob poob. Ntawm 1600 degree, lub hemispherical emissivity ntawm ntshiab molybdenum yog ruaj khov ntawm 0.15-0.20, muab lub hauv paus rau kev xav txog cua sov.
2. Quantitative Design of Interlayer Structural Parameters
Kev lag luam tseem ceeb tau txais cov qauv sib xyaw ntawm "3-8 txheej ntawm molybdenum daim hlau + 2-7 cov khaubncaws sab nraud povtseg", nrog rau cov phaj thickness nruj me ntsis tswj ntawm 0.15-0.3mm: Ib txheej nyias nyias yog qhov ua rau deformation vim thermal stress, thaum tuab tuab txheej ua rau txoj kev tshav kub. Qhov sib txawv interlayer yog teem rau ntawm 5-8mm. Nyob rau hauv ib puag ncig lub tshuab nqus tsev, qhov no tshem tawm cov roj thermal convection, txo cov thermal conductivity rau 0.02-0.05W / (m·K). Nyob rau hauv ib qho inert roj (argon / nitrogen) huab cua, qhov sib txawv yuav tsum tau nce mus rau 8-10mm kom sib npaug cov roj thermal conductivity thiab hluav taws xob teeb meem.
3. Kev Tshawb Fawb Txog Kev Tshawb Fawb Txog Kev Ua Haujlwm Thermal
Raws li kev ua haujlwm ntawm 1800 degree, 5- txheej Mo1 molybdenum phaj tshav kub tiv thaiv tuaj yeem ua tiav qhov kub sib txawv ntawm ntau dua 1700℃nruab nrab ntawm lub qhov cub sab hauv thiab lub plhaub ntawm lub cub tawg, nrog rau lub plhaub plhaub ntawm qhov kub thiab txias tsawg dua los yog sib npaug li 80℃. Qhov tseeb ntawm nws cov thermal field gradient tswj yog nyob ntawm qhov kev ua yuam kev interlayer parallelism tsawg dua lossis sib npaug li 0.2mm / m, tsis txhob muaj hluav taws xob hluav taws xob los ntawm qhov qaij ntawm lub ntsej muag reflective. Los ntawm kev sib piv cov qauv tsim nrog molybdenum-rhenium alloy scaffold, qhov sib txawv me ntsis ntawm cov thermal expansion coefficients ntawm ob cov ntaub ntawv (Mo1: 5.8 × 10⁻⁶ / degree, Mo-Re alloy: 6.2 × 10⁻⁶ /℃) yog siv los tiv thaiv kev cuam tshuam ntawm qhov kub thiab txias.
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