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Refractory fibermuchimiro chekutamisa kupisa kunogona kukamurwa kuita zvinhu zvinoverengeka, kupisa kwemwaranzi kweiyo porous silo, mhepo mukati meporous silo kupisa conduction uye kupisa conductivity kweiyo yakasimba fiber, uko convective kupisa kwemhepo kunoregeredzwa. Bulk density uye tembiricha zvine hukama hwakapindirana, kukwirisa tembiricha, kudzika kwehuwandu hwenyaya, chiyero chemwaranzi kupisa kupisa kunowedzera. Kune zvigadzirwa zvefiber refractory, huwandu hwehuwandu hunowanzo pasi pe 0.25g / cm ', porosity iri pamusoro pe90%, chikamu chegesi chinogona kuonekwa sechinoramba chiripo, chikamu chakasimba chinogona kuonekwa sechisingagumi, saka iyo yakasimba yekupisa conductivity yefiber inenge iduku.
Kana zviri nyore kubva dzidziso yokuti kuwanda density iduku, thermal conductivity yakakura, iyo yakawanda density yakakura thermal conductivity idiki; izvi hazvienderane nemamiriro ezvinhu chaiwo, zvakadai se slag ball content yakasiyana, kunyange kana kuwanda kwehuwandu hwakafanana, nhamba yefibers per unit volume yakasiyana, kuitira kuti porosity per unit volume haina kufanana, saka pachava nekusiyana mukupisa kwekushisa. Zvisinei, mhedziso dzemhando yepamusoro dzinogona kupfupikiswa sezvinotevera.
1. The thermal conductivity yerefractory fibersinoderera nekuwedzera kwehuwandu, uye kuderera kunoderera zvishoma nezvishoma, asi kana kuwanda kunosvika kune imwe nzvimbo, iyo inopisa conductivity haichadziki uye ine tsika yekuwedzera zvishoma nezvishoma.
2. Pakupisa kwakasiyana, kune hushoma hwekupisa conductivity uye hunoenderana hushoma density. Density inoenderana neshoma thermal conductivity inowedzera nekuwedzera tembiricha.
3. Nokuda kwehuwandu hwakafanana, thermal conductivity inosiyana nehukuru hwepores.
(1) Pore size 0.1mm.
0C kupinda = 0.0244W/(m. K) 100C apo λ = 0.0314W / (m. K)
(2) Aperture 2mm.
Mu pa 0C = 0.0314W/(m, K) λ = 0. 0512W/(m. K) pa 100C. K)
Pore dhayamita 1mm, tembiricha inokwira kubva 0C kusvika 500C, ayo thermal conductivity kukosha kunowedzera 5.3 nguva; pore dhayamita ye5mm, tembiricha inokwira kubva ku0C kusvika 500C, iyo yekupisa conductivity kukosha inowedzera 11.7 nguva. Naizvozvo, iyo yakakura ma pores mufiber refractory, iyo idiki inowirirana yakawanda density, uye thermal conductivity inowedzera.