Ceramic Fiber pam yog pam vov uas nrov rwb thaiv tsev paub txog lawv cov khoom siv cua sov tshwj xeeb. Lawv tau siv dav hauv ntau qhov kev lag luam, suav nrog aerospace, thiab kev tsim khoom, vim lawv lub peev xwm siab. Ib qho ntawm qhov tseem ceeb heev uas ua rau lawv cov txiaj ntsig yog lawv cov thermal tsawg thermal.
Thermal conductivity yog ib qho kev ntsuas ntawm cov khoom siv lub peev xwm los ua kom muaj cua sov. Nws yog qhov ntau ntawm cov cua sov uas ntws los ntawm ib qho chaw nyob ntawm cov khoom hauv ib chav ntawm ib chav tsev qhov sib txawv. Hauv cov ntsiab lus yooj yim, thermal ua haujlwm txiav txim siab yuav ua li cas cov ntaub ntawv tuaj yeem hloov kho lub zog cua sov.
Ceramic Fiber Pam Khaub Ncaws Muaj qhov thermal tsawg kawg thermal, uas yog qhov xav tau cov yam ntxwv xav tau. Qhov tsawg thermal conductivity ntawm cov pam vov no feem ntau yog qhov tseem ceeb rau cov qauv qauv sib xyaw ua ke ntawm cov ceramic fibers.
Tej hub txhuv tau ua los ntawm kev sib tov ntawm alumina thiab silica cov ntaub ntawv, uas muaj inherently tsawg thermal conductivity. Cov fibers no yog nyias thiab lub teeb ci, nrog cov sib piv siab, txhais tau tias lawv ntev yog ntau dua lawv txoj kab uas hla. Tus qauv no tso cai rau huab cua ntau dua thiab voids nyob rau hauv daim pam, uas ua raws li cov kev thaiv hluav taws xob thiab cuam tshuam hloov cov cua sov.
Lub thermal conductivity ntawm cov pam vov pam vov tuaj yeem sib txawv raws li hom tshwj xeeb thiab sau npe ntawm pam, raws li nws ntom ntom ntom. Feem ntau, cov thermal conductivity ntawm ceramic fiber ntau pam ntawm los ntawm feem ntawm daim pam ntawm los ntawm0.035 rau 0.08 w / m·K. Cov kab ke no qhia tau tias cov pam vov cov ceramic muaj cov pam vov zoo tshaj plaws piv rau lwm cov khoom rwb thaiv tsev raws li fiberglass lossis pob zeb ntaub.
Qhov tsawg thermal conductivity ntawmTej ceramic fiber pammuaj ntau cov txiaj ntsig hauv kev siv. Firstly, nws pab txo kom sov lossis nce, kom muaj zog siv hluav taws xob hauv kev lag luam cov txheej txheem thiab cov tsev. Los ntawm kev tiv thaiv kev hloov pauv ntawm tshav kub, cov pam vov Fiber Ntau Pab tau kom muaj ib puag ncig ruaj khov thiab tswj tau ib puag ncig muaj zog los yog txias ib qho chaw.
Tsis tas li ntawd, qhov tsawg thermal conductivity ntawm cov pam vov rooj ceramic muaj kev pab txhawb rau lawv cov kev tiv thaiv zoo heev rau qhov kub. Cov pam vov no tuaj yeem tiv taus kub txog li 2300°F (1260°C) thaum tswj lawv cov qauv kev ntseeg thiab cov khoom siv insulating. Qhov no ua rau zoo tagnrho rau cov ntawv thov uas muaj cov koom nrog qhov kev kub siab ib puag ncig, xws li cov tshuab raj lossis cub. Kiln.
Lub Sijhawm Post: Dec-06-2023
