Ma ke ʻano he mea refractory hana kiʻekiʻe,nā pōhaku mullite māmāua makemake nui ʻia i nā kahua ʻoihana honua no ko lākou pale wela maikaʻi loa, ke kūpaʻa wela kiʻekiʻe, a me nā waiwai māmā. Hoʻolālā ʻia e hoʻokō i nā koi koʻikoʻi o nā lako wela kiʻekiʻe, ʻaʻole wale kēia mau piliki e hōʻemi i ka hoʻohana ʻana i ka ikehu akā hoʻolōʻihi pū i ke ola lawelawe o nā umu ʻoihana, e lilo ana iā lākou i koho kūpono no nā ʻoihana e ʻimi nei i ka pono a me ka hoʻomohala hoʻomau.
Ua hoʻohālikelike ʻia nā kikoʻī o nā piliki mullite māmā a hiki ke hoʻopilikino ʻia e hoʻololi i nā hiʻohiʻona ʻoihana like ʻole. ʻO nā kumu hoʻohālike nui e pili ana iā JM23, JM25, JM26, JM27, JM28, JM30, a me JM32, me ka nui o ka alumina mai 40% a 77% a ʻaʻole iʻoi aku ka nui o ka hao oxide ma mua o 1.0% (a hiki i ka 0.5% no nā kumu hoʻohālike maʻemaʻe kiʻekiʻe). ʻO ko lākou nui nui he 0.55g/cm³ a 1.35g/cm³, a ʻo ka ikaika o ke kuʻi anu he 1.0MPa a 3.5MPa, e hōʻoiaʻiʻo ana i ka hana paʻa ma lalo o nā kūlana ukana like ʻole. ʻO ka mahana hoʻokaʻawale he 1260℃ a 1760℃, ʻo ka mahana hoʻomaka palupalu ukana he 1080℃ a 1570℃, a ʻo ka helu loli linear mau loa ma hope o ka hoʻomehana wela kiʻekiʻe he -1.5% a 0.5%. ʻO ka nui maʻamau he 230x114x65mm, a loaʻa nā nui maʻamau e like me nā pono o nā mea kūʻai aku no ka hana pōhaku humuhumu ʻole.
ʻO ka conductivity thermal o nā piliki mullite māmā he haʻahaʻa e like me 0.18W/(m·K) ma 200℃, hiki ke hōʻemi pono i ka nalowale o ka wela a hoʻomaikaʻi i ka hoʻohana ʻana i ka ikehu—he pono nui i ka hana ʻoihana. Hana ʻia me ka alumina maʻemaʻe kiʻekiʻe a me ka silica, hana kēia mau piliki i kahi ʻano crystalline mullite paʻa, nona kahi liʻiliʻi o ka pae aniani, cristobalite, a i ʻole corundum, kahi e hoʻonui nui ai i ko lākou kūpaʻa haʻalulu wela a me ke kūpaʻa i ka corrosion kemika. Hiki iā lākou ke hoʻopili pololei me nā lapalapa, e hoʻopau ana i ka pono no nā papa insulation hou a hoʻomaʻalahi i ke kaʻina hana masonry.
He nui nā ʻano hana o nā piliki mullite māmā, e uhi ana i ka metallurgy, keramika, aniani, petrochemical a me nā ʻoihana ʻē aʻe. I ka ʻoihana metallurgical, hoʻohana ʻia lākou no ka uhi ʻana o nā umu pahū wela, nā kino a me nā lalo o ka umu pahū, a me nā luna umu uila hana kila, ʻaʻole hiki ke mālama wale i nā mahana paʻa akā e hōʻemi pū i ka hoʻohana ʻana i ka ikehu. I ka ʻoihana keramika, he mau mea kūpono lākou no nā umu wili, nā umu shuttle, a me nā umu drawer, e hiki ai ke hoʻomehana wikiwiki a me nā pōʻaiapuni hoʻoluʻu a hoʻomaikaʻi i ka pono o ka hana ʻana.
I loko o ka ʻoihana aniani, hoʻohana ʻia lākou i nā mea hana hou o ka umu hoʻoheheʻe aniani a me nā kahawai hānai, hiki ke kū i nā mahana kiʻekiʻe a me ka ʻino kemika e hōʻoia i ka maikaʻi o ka huahana. I loko o ka ʻoihana petrochemical, hoʻohana ʻia lākou no ka uhi ʻana o nā umu haki petroleum, nā umu hoʻololi ammonia synthetic, a me nā umu gasification aila koena, hiki ke kū i nā wahi hana ʻino. Eia kekahi, hoʻohana nui ʻia lākou i nā umu uila like ʻole, nā mea puhi ahi, a me nā lako hana wela kiʻekiʻe, e hāʻawi ana i ka insulation thermal hilinaʻi a me ke kākoʻo kūkulu.
Ke hoʻohālikelike ʻia me nā piliki refractory kuʻuna, loaʻa i nā piliki mullite māmā nā pono maopopo: hiki i ka haʻahaʻa haʻahaʻa ke hōʻemi i ke kaumaha o ka umu a me ka ukana kūkulu, hiki i ka conductivity thermal haʻahaʻa ke mālama i ka 15%-20% o ka wahie, a ʻo ka maʻemaʻe kiʻekiʻe e hōʻoia i ka hana paʻa i nā lewa paʻakikī. Inā he kikoʻī maʻamau a i ʻole nā kikoʻī maʻamau, hiki iā lākou ke hoʻokō i nā pono like ʻole o nā ʻoihana like ʻole. E koho i kā mākou mau piliki mullite māmā kiʻekiʻe e kōkua iā ʻoe e hōʻemi i nā kumukūʻai hana, hoʻomaikaʻi i ka pono hana, a hoʻokō i ka hoʻomohala ʻōmaʻomaʻo a hoʻomau.
Ka manawa hoʻouna: ʻApelila-03-2026
