Ndi kutentha kochuluka bwanji komwe njerwa za aluminiyayi zimapirira?

Njerwa zapamwamba za alumina refractory amapangidwa ndi calcined kuchokera ku bauxite kapena zipangizo zina zokhala ndi aluminiyamu wambiri. Njerwa za aluminium silicate refractory zomwe zili ndi Al2O3 zokulirapo kuposa 48% zimatchedwanso njerwa zapamwamba za alumina refractory, zokhala ndi kukhazikika kwamafuta ambiri komanso kukana moto. Ndi kutentha pamwamba pa 1770 ℃, chimodzi mwazinthu zofunikira zogwirira ntchito za njerwa zapamwamba za aluminiyamu ndi mphamvu zamapangidwe pamatentha kwambiri. Makhalidwewa nthawi zambiri amawunikidwa ndi kutentha kwa deformation yofewa pansi pa katundu. Zomwe zimakwera kwambiri zimayesedwanso kuti ziwonetse mphamvu zamapangidwe apamwamba. Ndiye ndi madigiri angati a kutentha kwakukulu komwe njerwa za alumina zowunikira zimatha kupirira? Zotsatira zoyesa zikuwonetsa kuti kutentha kofewetsa pansi pa katundu kumawonjezeka ndi kuchuluka kwa zinthu za Al2O3.