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Nā waiwai maikaʻi a me ka hoʻohana ʻana i nā cenospheres.

Nā waiwai maikaʻi a me ka hoʻohana ʻana ocenospheres: kiʻekiʻe refractoriness.ʻO nā mea kemika nui ocenosphereshe mau oxides o ke silika a me ka alumini, nona ka silicon dioxide ma kahi o 50-65%, a me ka alumini oxide ma kahi o 25-35%.No ka mea he kiʻekiʻe ka helu heheʻe o ka silica me 1725 degere Celsius, ʻo ka helu heheʻe o ka alumini oxide he 2050 degere Celsius, ʻo ia mau mea ʻelua kiʻekiʻe.nā mea hoʻopaʻapaʻa.No laila, he kiʻekiʻe loa ka refractoriness o nā cenospheres, a hiki i ka 1600-1700 degere Celsius, e hoʻolilo iā lākou i mea refractory maikaʻi loa.Māmā, hoʻomāmā.ʻO ka paia o nā cenospheres he lahilahi a hakahaka, a he semi-vacuum ka lua, me ka liʻiliʻi loa o ke kinoea (N2, H2 a me CO2, a me nā mea'ē aʻe), a he lohi a liʻiliʻi loa ka hoʻokele wela.No laila, ʻaʻole māmā wale nā ​​​​cenospheres i ke kaumaha (bulk density 250-450 kg / m3), akā maikaʻi nō hoʻi i ka thermal insulation (thermal conductivity i ka lumi mahana 0.08-0.1), kahi e kau ai i ke kumu no lākou e hōʻike i kā lākou mau talena i ke kula. o nā mea hoʻoheheʻe wela māmā.ʻO ka paʻakikī kiʻekiʻe a me ka ikaika.No ka mea, he kino aniani paʻakikī nā cenospheres i hoʻokumu ʻia e ka silicon alumina oxide mineral phases (quartz a me mullite), hiki i ka paʻakikī ke piʻi i ka pae Mohs 6-7, ʻoi aku ka kiʻekiʻe o ka ikaika static e like me 70-140MPa, a ʻo 2.10-2.20 ka nui maoli. g/cm3.hoohalike me ka pohaku.No laila, he ikaika kiʻekiʻe ka cenospheres.ʻO ka maʻamau, ʻaʻohe paʻakikī a me ka ikaika o nā mea ʻeleʻele e like me ka perlite, zeolite, diatomite, pumice, vermiculite hoʻonui a me nā mea ʻē aʻe, a ʻo nā huahana insulation thermal a i ʻole nā ​​​​huahana refractory māmā i hana ʻia mai ia mau mea i loaʻa nā hemahema maikaʻi ʻole.ʻO kā lākou mau hemahema ka pono o nā cenospheres, no laila, ʻoi aku ka maikaʻi o ka hoʻokūkū a me ka hoʻohana ākea o nā cenospheres.ʻO ka nui o nā ʻāpana liʻiliʻi a me ka ʻāpana kikoʻī nui.ʻO 1-250 microns ka nui o ka nui o nā pēke i hana maoli ʻia.ʻO 300-360cm2/g ka ʻāpana ili kikoʻī, e like me ka sima.No laila, hiki ke hoʻohana pololei ʻia nā cenospheres me ka ʻole o ka wili ʻana.Hiki i ka fineness ke hoʻokō i nā pono o nā huahana like ʻole.ʻO nā mea ʻē aʻe maʻemaʻe māmā me ka nui o nā ʻāpana nui (e like me ka perlite, etc.).Inā lākou i lepo, e hoʻonui nui ʻia ka mana, a e hoʻemi nui ʻia ka insulation thermal.Ma kēia ʻano, loaʻa i nā cenospheres kahi pōmaikaʻi.ʻOi aku ka maikaʻi o ka pale uila.ʻO Cenospheres, ma hope o ke koho ʻia ʻana o nā peʻa magnetic, he mau mea insulating maikaʻi loa a ʻaʻole-conductive.ʻO ka mea maʻamau, hoʻemi ke kū'ē o nā insulators me ka piʻi ʻana o ka mahana, akā piʻi ke kūʻē o nā cenospheres me ka piʻi ʻana o ka mahana.ʻAʻole loaʻa kēia pōmaikaʻi me nā mea insulating ʻē aʻe.No laila, hiki iā ia ke hana i nā huahana insulating ma lalo o nā kūlana wela kiʻekiʻe.
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Ka manawa hoʻouna: Apr-29-2022