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ʻO nā seramika alumina me ka pale ʻana i ka corrosion plasma maikaʻi loa a me ke kūpaʻa lole kiʻekiʻe
Noi kahua o alumina seramics
ʻO ka alumina ceramics kahi ʻano o nā mea seramika pololei, hiki iā mākou ke hoʻomaikaʻi maikaʻi i ka pono o ka noi a me ka lōʻihi maoli o ka alumina ceramics ma o ka hoʻohui ʻana i ka pauka alumini oxide i loko o nā seramika, me ka conductivity maikaʻi, ka ikaika mechanical a me ke kūpaʻa wela kiʻekiʻe, ʻo ia kekahi o nā mea i hoʻohana nui ʻia. seramika.
1. Nā ʻano mīkini
ʻO ka pōmaikaʻi koʻikoʻi o ka alumina ceramics ʻo ia ke kiʻekiʻe o kona ikaika kulou, a ʻoi aku ke kiʻekiʻe o ke kaomi wela ma mua o nā mea ʻē aʻe o ia ʻano like. Ma ke ʻano o ka paʻakikī ʻo Mohs ʻaʻole hiki ke lanakila, pono kūʻokoʻa, i hui pū ʻia me ke kūpaʻa ʻaʻahu maikaʻi loa, no laila hoʻohana pinepine ʻia e hana i nā mea hana, nā bearings ceramic ... etc. ʻO nā mea hana seramika a me nā valve ʻoihana ka mea i koho ʻia i kēia manawa no nā noi seramika alumina.
2. Kahua kemika
Loaʻa i nā mea alumina ka lōʻihi o ka wā e hiki mai ana i ka ʻoihana kemika, inā paha he pōpō packing kemika a i ʻole nā pale pale corrosion, ʻo nā mea polymer inorganic i hoʻohana ʻia he kūpaʻa kiʻekiʻe a me ke kūpaʻa wela maikaʻi. ʻAʻole e hoʻopili ʻia nā seramika alumina ma lalo o ka ikaika kiʻekiʻe a me ke kiʻekiʻe kiʻekiʻe, hiki ke pale i ka erosion o nā mea hoʻoheheʻe organik a me nā mea kemika, hiki ke hoʻohana pinepine ʻia, a hoʻokō i nā kūlana o ka hana kemika.
3. ʻAno uila uila
He kuleana koʻikoʻi nō hoʻi nā seramika alumina i ke ʻano uila uila, a ʻo nā substrate seramika like ʻole, nā kiʻi ʻoniʻoni seramika, nā seramika māmā a me nā mea insulating ʻaʻole hiki ke hoʻokaʻawale ʻia mai nā seramika alumina. Ma ke kahua ʻoihana uila nui, ʻo nā seramika māmā kahi kuhikuhi koʻikoʻi o ka noiʻi a me ka hoʻohana ʻana i ka ʻenehana hou, ʻaʻole wale ka kiʻekiʻe o ka hoʻouna ʻana i nā kukui, kiʻekiʻe thermal conductivity, haʻahaʻa haʻahaʻa, ʻaʻahu kūʻē a me nā ʻano o nā mea maikaʻi. .
4. Hoomaemae hale
ʻO ka hoʻohana ʻana i ka alumina ceramic lining brick a me ka microcrystalline wear-resistant alumina spherical stone no ka wili pōleʻa ua kaulana loa, a ʻo ka hoʻohana ʻana i ka alumina ceramic roller, alumina ceramic kānana paipu a me nā alumina like ʻole a me nā alumina i hui pū ʻia me nā mea refractory ʻē aʻe ke ʻike ʻia ma nā wahi āpau.
5. Nā ʻano ʻē aʻe
Hoʻohana nui ʻia nā ʻāpana alumina i hoʻohui ʻia a hoʻololi ʻia e like me ka carbon fiber reinforced alumina ceramics, zirconia reinforced alumina ceramics a me nā alumina paʻakikī ʻē aʻe i hoʻohana nui ʻia i nā kula kiʻekiʻe; ʻO nā alumina ceramic abrasives a me nā paʻi polishing kiʻekiʻe ke pāʻani nei i kahi hana hohonu i ka ʻoihana mīkini a me nā mea hoʻonaninani; Eia kekahi, ʻoi aku ka maikaʻi o ka alumina ceramic grinding medium i ka wili a me ka hana ʻana i nā mea maka i loko o ka uhi a me nā ʻoihana lāʻau.
kalakala | -- | ʻelepani |
Maʻiʻo o ka Aluminum | -- | 99.7-99.9% |
ʻAiʻiliʻi ʻāpana | G/Cm3 | 3.92~3.98 |
ʻO Vickers Paʻakikī | Kgf/Mm2 | 1735 |
Haʻihaʻi Paʻa | MPa.M1/2 | 3.51 |
ʻEkolu Piʻo Kūʻē | MPa | 520 |
Kaha Wela Kūikawā | J/Kg. ℃ | 0.68 |
Koefficient diffusion wela | M2/S | 0.0968 |
ʻO ka hoʻoili wela | ||
26W/MK | ||
Elasticity Modulus | GPa | 356 |
ʻAwelika Linear Thermal Expansion Coefficient (0-500℃) | 10-6/℃ | 6.16-7.5 |
ʻO ka wela wela (25℃) | W/(MK) | 35 |
Ka ikaika insulating (5mm mānoanoa) | AC-Kv/Mm | 10 |