Hoʻokaʻawale ʻia nā pōhaku silica-mullite i ʻekolu mau māka: GM1650, GM1600, a me GM1550 e like me ka hoʻohālikelike wela hoʻoluʻu.

ʻO nā pōhaku silica-mullite nā hiʻohiʻona penei:

① ʻOi aku ka paʻa o ka huahana a maikaʻi ke pale ʻana i ka lole. ʻO ke ʻano o nā huahana brick silica-mullite he paʻakikī, a ʻo ka nui o ka nui he 2.55 ~ 2.65g / cm³. Ma muli o kona paʻa maikaʻi, ikaika a me ke kūpaʻa ʻana, hoʻohana nui ʻia ia i nā kāʻei kīwī kīwila lua, nā kāʻei kānana a me nā ʻāpana ʻē aʻe.

② ʻO ka wela hoʻoluʻu haʻahaʻa kiʻekiʻe a me ka hana wela kiʻekiʻe. ʻO ka mahana hoʻoluʻu haʻahaʻa o nā pōhaku silica-mullite ma luna o 1450 ℃, a hiki ke kiʻekiʻe loa ma luna o 1650 ℃.