Ceramic fiber ntau daim pam tau lees paub tias yog cov khoom siv refractory nrog thermal rwb thaiv tsev zoo hauv kev lag luam. Lub thermal conductivity ntawm ceramic fiber pam series cov khoom ntawm 400 degree tsuas yog 0.09. Raws li qhov no, cov pam pua chaw fiber ntau thiab cov khoom tau los xws li cov khoom siv tau hloov pauv sai sai los ntawm qhov kub kub. Tau txais, thiab daim ntawv thov cuam tshuam raws li qhov xav tau.
Yog li cas cov thermal rwb thaiv tsev kev ua tau zoo ntawm ceramic fiber pam ua tiav?
Ceramic fibers feem ntau yog tsim los ntawm cov khoom theem thiab roj theem, thiab zoo li lwm yam khoom, ob theem no kuj ua rau cov cua sov hloov los ntawm conduction, hluav taws xob thiab convection.
Khoom Phaj
Cov theem khoom yog hais txog cov fiber ntau filaments nyob rau hauv ceramic fiber daim pam. Lub interweaving ntawm lawv yeej tsis muaj kev taw qhia, thiab txoj kev hloov mus rau tshav kub yog tortuous thiab circuitous, uas zoo heev txo lub zog ntawm fiber ntau-theem tshav kub conduction. Nov yog ib qho ntawm lawv. Ntawm qhov tod tes, kev sib cuag ntawm cov filaments feem ntau yog taw tes rau kev sib cuag, uas ua rau lub tshav kub hloov ntawm cov khoom theem nyuaj dua.
Gas theem
Cov roj theem txhais tau hais tias daim pam ceramic fiber ntau yog ua los ntawm interwoven fiber filaments, cov voids muaj roj, thiab cov porosity ncav cuag 90 feem pua. Thiab feem ntau cov pa roj, nrog rau cov huab cua, yog cov khoom uas muaj thermal conductivity tsawg thiab muaj peev xwm kub tsawg hauv lub xeev so. Cov cua kub nkag mus rau hauv cov fiber ntau yog sib cais thiab cuam tshuam los ntawm ntau lub qhov ntawm cov pa, thiab yuav luag nyob rau hauv lub xeev zoo li qub. Yog li ntawd, cov cua kub hloov mus rau hauv daim pam ceramic fiber ntau yog tsawg heev.