ʻO ka alumina bubble fire brick he ʻano mea hoʻoheheʻe wela wela kiʻekiʻe a hana ʻia me ka alumina ʻoihana i loko o ka umu uila ma o ka hoʻoheheʻe ʻana a me ka puhi ʻana. ʻO ka alumina bubble refractory brick crystal form he a-Al2O3 microcrystal a ʻo ke kino nui he alumina bubble i hiki ke hana ʻia i nā ʻano huahana āpau me nā ʻano like ʻole no ka lawelawe ʻana i ka wela kiʻekiʻe o 1800 ℃ me ka ikaika mechanical kiʻekiʻe a me ka haʻahaʻa haʻahaʻa haʻahaʻa.
Hoʻohana ʻo Aluminum bubblle firebrick i ka pōpō alumina bubble ma ke ʻano he kumu kumu, ka pauka ultrafine hana kiʻekiʻe e like me ka mea hoʻohui a me ka mea kūlohelohe e like me ka mea hoʻopaʻa paʻa ma o ka hoʻoheheʻe ʻana a me ka hoʻomaloʻo ʻana, a laila puhi ʻia i loko o ka kiln wela wela.
ʻO ka alumini bubble ahi brick nā hiʻohiʻona o ka wela wela a me ka conductivity thermal haʻahaʻa, hiki ke hopena i ka hopena insulating wela nui, hoʻemi i ka wela wela a hoʻomaikaʻi i ka hana wela. me ka hoʻohana ʻana i ka alumini bubblle refractory brick hiki ke mālama i ka ikehu kiʻekiʻe a hiki i 30%. a he kiʻekiʻe ka wela lawelawe o ka pahu alumina a hiki i 1750 ℃. maikaʻi ke kūpaʻa wela a haʻahaʻa ka hoʻololi ʻana o ka laina laina, hiki i ka pahu pahu alumini ke hopena i ke ola lawelawe lōʻihi.
'ikamu | Pilikia Bua Alumina | |||
Nā ʻano | Unite | 85# | 90# | 99# |
ʻO ka wela lawelawe kiʻekiʻe loa | ℃ | 1680 | 1700 | 1800 |
Al2O3 | % | ≥85 | ≥90 | ≥99 |
SiO2 | % | ≤15 | ≤8 | ≤0.2 |
Fe2O3 | % | ≤0.2 | ≤0.2 | ≤0.2 |
ʻAiʻi Nui | g/cm3 | 1.4-1.7 | 1.4-1.7 | 1.4-1.7 |
Ka Ikaika Kui anu | MPa | ≥12 | ≥10 | ≥9 |
ʻO ka Refractoriness ma lalo o ka ukana (0.1MPa, 0.6%) | ℃ | ≥1650 | ≥1760 | ≥1760 |
Hoʻololi hou i ka laina laina (1600 ℃*3h) | % | ±0.3 | ±0.3 | ±0.3 |
ʻO ka hoʻonui ʻana i ka wela (ka wela lumi -1300 ℃) | ×10-6℃-1 | ~7.8 | ~8.0 | ~8.6 |
ʻO ka wela wela (800 ℃) | W/(m·K) | ≤0.8 | ≤1.3 | ≤1.5 |
ʻO ka alumina bubble brick kahi ʻano mea refractory koʻikoʻi nui no ka pale ʻana i ka wela kiʻekiʻe a me nā koi kūikawā o nā kūlana no ka umu ahi a me ka kiln, ka mea i hoʻohana nui ʻia e like me ka insulating brick no ka insulation layer o ka umu a me ka kiln, a hiki ke hoʻohana ʻia hoʻi ka alumini bubble brick no ka lawelawe. nā linings i ka hana ʻana i ka quartz maʻemaʻe kiʻekiʻe no ka ʻoihana uila e like me ka linings tile ceramic i nā turbines gas a me nā linings backup i nā reactors.
ʻO ka hale hana refractory RS ma ke ʻano he mea hana ʻoihana alumina bubble brick ma Kina, he nui nā pono hoʻokūkū ma ka mākeke. inā he koi ʻoe i nā pōhaku lepo alumini, a i ʻole he nīnau e pili ana i ka alumini bubble firebrick e pili ana i nā hōʻailona kino a me nā kemika, e ʻoluʻolu e leka uila mai iā mākou no ka manuahi, e hāʻawi mākou iā ʻoe i ke kiʻekiʻe kiʻekiʻe alumini bubble refractory brick.