I loko o nā hiʻohiʻona hana ʻenehana, maʻamau nā kaiapuni wela kiʻekiʻe akā paʻakikī loa. ʻO ka lapalapa ahi paha i ka wā o ka hoʻoheheʻe kila, nā umu wela kiʻekiʻe i ka hana aniani, a i ʻole nā reactors kiʻekiʻe i ka hana kemika, ua kau ʻia nā koi koʻikoʻi ma ke kūʻē ʻana o nā mea. Aia kekahi mea koʻikoʻi i loko o kēia mau māla wela kiʻekiʻe a hiki ʻole ke mālama ʻia, ʻo ia kanā poloka ʻaʻa ʻana i ka wela.
ʻO Silicon carbide, mai kahi hiʻohiʻona hoʻohui kemika, he hui i haku ʻia me ʻelua mau mea: silicon (Si) a me carbon (C). Me ka loaʻa ʻana o ka huaʻōlelo 'silicon' ma kona inoa, ʻokoʻa loa kona helehelena mai nā mea silika a mākou e ʻike nei i ko mākou ola i kēlā me kēia lā. Hōʻike pinepine ʻia ʻo Silicon carbide e like me nā kristal ʻeleʻele a ʻōmaʻomaʻo paha, me kahi ʻano paʻakikī a me ka paʻakikī kiʻekiʻe. Ke hoʻohana ʻia e ʻoki aniani, e waiho maʻalahi ia i nā kaha ma ke aniani, e like me ke ʻoki ʻana i ka pata me kahi pahi liʻiliʻi.
ʻO ke kumu e hiki ai ke kū i waho nā poloka pale wela silicon carbide i nā wahi wela kiʻekiʻe ma muli o kā lākou mau waiwai maikaʻi loa. ʻO ka mea mua, loaʻa iā ia ke kūpaʻa wela kiʻekiʻe loa, me kahi helu heheʻe kiʻekiʻe loa, ʻo ia ka mea hiki ke noho paʻa ma nā wahi ʻoihana wela kiʻekiʻe a ʻaʻole hiki ke palupalu, hoʻoheheʻe, a heheʻe paha. Ke piʻi aʻe ka mahana i loko o ka umu hoʻoheheʻe kila, ua hoʻomaka paha nā mea ʻē aʻe e " amo i ke kaumaha", akā hiki i nā poloka pale wela silicon carbide ke "noho mālie" a hoʻokau mau i ke kuleana o ka pale ʻana i ke kino umu a mālama i ka hana.
ʻOi loa ka maikaʻi o ke kūpaʻa kemika o nā poloka pale wela silicon carbide. He kūpaʻa maikaʻi kona i nā ʻano media kemika, a paʻakikī i nā ʻakika corrosive ikaika a i ʻole nā mea alkaline e hōʻino iā ia. I ka hana kemika, ʻike pinepine ʻia nā kemika corrosive like ʻole. ʻO ka hoʻohana ʻana i nā poloka pale wela silicon carbide e like me ka uhi ʻana o nā mea hana e hiki ai ke pale pono i nā mea hana mai ka ʻino ʻia, hoʻolōʻihi i ke ola o nā lako hana, a hoʻemi i nā kumukūʻai hana.
Ma waho aʻe o nā waiwai i luna, ʻoi aku ka maikaʻi o ka pale ʻana i ka ʻaʻahu a me ka ikaika kiʻekiʻe. Ma kekahi mau kaiapuni kiʻekiʻe me ka erosion waiwai, e like me ka cyclone sepators a me ka calcination furnaces i loko o nā mea kanu sima, hiki i ka silicon carbide heat-resistant blocks ke hōʻemi i nā poho ma muli o ko lākou mau waiwai aahu, e hōʻoia i ka hana maʻamau o nā mea hana. ʻO kona ikaika kiʻekiʻe e hiki ai iā ia ke pale aku i kekahi mau kaomi a me ka hopena o ka ikaika, e mālama ana i ka kūpaʻa o ke kūkulu ʻana i nā kaiapuni ʻoihana paʻakikī.
Hoʻohana nui ʻia nā poloka pale wela Silicon carbide i ka ʻoihana ʻoihana. Ma kaʻoihana kila, hoʻohana nuiʻia i nā mea hana e like me nā kapuahi a me nā kapuahi wela. I loko o ka umu ahi, ʻo ka hao hoʻoheheʻe kiʻekiʻe a me ka slag he koi kiʻekiʻe loa no nā mea lining. ʻO nā poloka pale wela Silicon carbide, me ko lākou pale wela kiʻekiʻe a me ka pale ʻana i ka erosion, ua lilo i koho maikaʻi loa no nā mea lining, e hoʻolōʻihi pono i ke ola lawelawe o ka umu ahi a hoʻomaikaʻi i ka maikaʻi a me ka maikaʻi o ka hana kila. I loko o ka umu ahi wela, nā poloka pale wela silicon carbide e like me nā kino mālama wela, hiki ke mālama pono a hoʻokuʻu i ka wela, e hāʻawi ana i ka ea wela wela no ka umu ahi a hoʻomaikaʻi i ka hoʻohana ʻana i ka ikehu.
I loko o ka ʻoihana hoʻoheheʻe metala non-ferrous, e like me ke kaʻina hoʻoheheʻe ʻana o ka aluminika, ke keleawe a me nā metala ʻē aʻe, pono nui nā poloka carbide heat-resistant. He kiʻekiʻe ka wela hoʻoheheʻe ʻana o kēia mau metala, a ua hana ʻia nā kinoea corrosive a me ka slag i ka wā o ka hoʻoheheʻe ʻana. Hiki ke hoʻololi maikaʻi ʻia nā poloka pale wela Silicon carbide i kēlā ʻano ʻino, pale i nā lako umu ahi, a hōʻoia i ka hoʻoheheʻe ʻana o nā metala non-ferrous.
He mau mea koʻikoʻi ko nā poloka pale wela Silicon carbide i ka ʻoihana seramika a me ke aniani. Pono e hoʻokō ʻia ke kī ʻana i ka ceramic i nā kiln wela kiʻekiʻe. ʻO nā kiln i hana ʻia i nā poloka silicon carbide wela, e like me nā papa hoʻoheheʻe, nā pahu, a me nā mea ʻē aʻe, ʻaʻole hiki ke pale wale i nā mahana kiʻekiʻe, akā e hōʻoia pū i ka paʻa a me ka kūlike o nā huahana ceramic i ka wā o ke kaʻina hana, e kōkua ana i ka hoʻomaikaʻi ʻana i ka maikaʻi o nā huahana ceramic. I loko o nā kapuahi hoʻoheheʻe aniani, hoʻohana ʻia nā poloka pale wela silicon carbide no ka uhi ʻana a me nā keʻena mālama wela, hiki ke kū i ke kiʻekiʻe o ka wela wela a me ka hoʻomaʻamaʻa ʻana i ka wai aniani, ʻoiai e hoʻomaikaʻi ana i ka pono wela o ka umu a me ka hoʻemi ʻana i ka ikehu.
Me ka hoʻomau mau ʻana o ka ʻenehana a me ka hoʻomohala mau ʻana o ka ʻoihana, ʻoi aku ka laulā o ka noi ʻana o nā poloka pale wela silicon carbide. Ma ka lima hoʻokahi, e ʻimi mau ana nā mea noiʻi i nā kaʻina hana hoʻomākaukau hou a me nā ʻenehana e hoʻonui hou i ka hana o nā poloka pale wela silicon carbide a hoʻemi i nā kumukūʻai hana. No ka laʻana, ma ka lawe ʻana i kahi kaʻina sintering hou, hiki ke hoʻonui ʻia ka nui a me ke ʻano o nā poloka pale wela silicon carbide, a laila e hoʻomaikaʻi ai i kā lākou hana holoʻokoʻa. Ma ka ʻaoʻao ʻē aʻe, me ka piʻi wikiwiki ʻana o nā ʻoihana e kū mai ana e like me ka ikehu hou a me ka aerospace, ke piʻi nui nei ka noi no nā mea pale wela kiʻekiʻe, a ua manaʻo ʻia nā poloka pale wela silicon carbide e pāʻani i ka hana nui i kēia mau māla.
Ka manawa hoʻouna: Sep-02-2025