1. Hoʻolālā Huahana a me ka Hana Hana ʻana
1.1 ʻO ka alumina ma ke ʻano he mea porselena kiʻekiʻe
(Paʻa Baking Alumina)
alumina (Al Elua O EHA), a i ʻole alumini oxide māmā, he mea maoli ole loa, polycrystalline ceramic kaulana no kona kūpaʻa wela, ʻoʻoleʻa mechanical, a me ka inertness kemika, e hoʻolilo iā ia i moho kūpono no nā ipu a me nā pā kiʻekiʻe, ʻoi aku ka hoʻomaʻamaʻa ʻana.
Me kahi mea hehee e hele ana ma mua 2050 ° C, Mālama ʻo alumina i ka kūpaʻa o ka hale ma lalo o nā kūlana wela koʻikoʻi ma mua o ka pae hana o ke aniani maʻamau, metala, a i ʻole nā mea kuke kumu polymer.
ʻO ka keramika i hoʻohana ʻia i ka kuke kīʻaha ma ke ʻano he 85– 99.5% alumini oxide, me ke koena o na mea kokua e like me ka silica, magnesia, a i ʻole titania e hoʻoikaika ana i ka hoʻopaʻa ʻana i nā pana wela kiʻekiʻe.
ʻO nā ʻano maʻemaʻe kiʻekiʻe (≥ 95% Al ₂ O ₃) hāʻawi i ke kūpaʻa haʻalulu wela a me ka paʻa, ʻoiai ʻo ka hoʻohaʻahaʻa maʻemaʻe maʻemaʻe hiki ke komo i ka pālolo a i ʻole feldspar e hōʻemi i nā kumukūʻai hana a hoʻomaikaʻi i ka formability.
ʻAʻole like me ka ipu lepo maʻamau, e hilinaʻi ana i nā ʻāpana aniani amorphous no ka hui ʻana, Loaʻa ka ikaika o ka alumina ceramics mai kahi ʻupena paʻa o nā ʻāpana crystalline i hoʻopaʻa ʻia ma o ka sintering i hoʻoponopono ʻia..
Hāʻawi kēia microstructure i ke kūpaʻa maikaʻi loa i ka pōʻino, abrasion, a me ka hoʻohaʻahaʻa wela– nā hiʻohiʻona koʻikoʻi no ka hoʻohana pālua ʻana i nā umu, nā broilers, a me nā noi ahi pololei.
1.2 Ka Hana Hana a me ka Hana Hana
Hoʻomaka ka hana ʻana o ka alumina ceramic baking meaʻai me ka hana hoʻomākaukau o kahi hoʻopaʻi, hui pū ʻia i ka pauka, ʻO ia ka mea ma hope o ka hoʻohana ʻana i nā ala e like me ke kaomi uniaxial, hoʻokuke isostatic, a i ʻole ka hoʻolei ʻana i loko o nā mole.
Ke hoʻolei ʻana i ka paheʻe, kūikawā, Hoʻohana pinepine ʻia no nā geometries paʻakikī, kahi slurry pili wai (a i ʻole “pahee”) o nā ʻāpana alumina e ninini pono ʻia i loko o nā poʻi palaki permeable e lawe i ka wai, e waiho ana i kahi papa seramika ikaika.
Ma hope o ka maloʻo ʻana, hana ke kino aloha i ke kaʻina pana wela kiʻekiʻe– maʻamau ma waena 1400 ° C a 1600 ° C– i loko o ka tunnel a i ʻole nā kiln hoʻonohonoho, i ka wā o ka hoʻopuehu ʻana o nā ʻāpana a me ka ulu ʻana o ka palaoa e lawe mai i ka densification a me ka wehe ʻana i ka pore.
He mea nui kēia kaʻina hana sintering; ʻaʻole lawa ka mahana a i ʻole ka manawa ke kumu porous, nā papa hana nāwaliwali, ʻoiai ʻo ka wela nui e hiki ke hoʻoulu i ka warping a i ʻole ka palaoa coarsening e hōʻemi ana i ka hana mechanical.
Ma hope o ka hoʻomaʻamaʻa ʻana, hiki ke hoʻopili ʻia ka wili ʻana a i ʻole ka hoʻomālamalama ʻana no ka loaʻa ʻana o nā ana kūpono a me nā ʻili laulima, kikoʻī no nā meaʻai e pili ana i ka uhi paʻa a i ʻole ka ʻike maka.
( Paʻa Baking Alumina)
ʻO ka poli ʻana he koho; ʻO kekahi mau meaʻai kuke alumina he lahilahi, ʻO ka hoʻopau ʻana i ka enamel e like me ke aniani e hoʻoikaika ai i ka pale ʻana a me ka maʻalahi o ka hoʻomaʻemaʻe, ʻoiai ʻo nā ʻano i hoʻopaʻa ʻole ʻia e mālama i kahi matte kūlohelohe me ka hoʻoheheʻe ʻana i ka aila maikaʻi loa no nā maʻamau non-stick..
2. ʻO nā hiʻohiʻona wela a me ka mīkini
2.1 ʻO ka hoʻoili wela a me ka puʻunaue wela
Hōʻike ka alumina i ka hana wela haʻahaʻa– ma kahi o 20– 30 W/(m · K)– ʻoi aku ka nui ma mua o ke aniani a i ʻole ka porcelain akā ʻoi aku ka haʻahaʻa ma mua o nā metala e like me ke alumini a i ʻole ke keleawe.
Hāʻawi kēia conductivity kaulike i ka alumina kuke ʻana i nā meaʻai e hoʻomaʻamaʻa mālie a hoʻopuehu i ka mana wela ma mua o nā mea aniani., e hoemi ana i na wahi wela e hiki ai ke hana like ole ke kuke ana a me ke ahi.
ʻO ka mana wela kiʻekiʻe o ka mea hiki ke mālama pono i ka mana wela, ka mālama ʻana i ka mahana maʻamau i ka wā e wehe ʻia ai ka puka umu a i ʻole i ka wā e hoʻokomo ʻia ai ka meaʻai anuanu.
ʻAʻole e like me nā pā palai kila e hoʻoneʻe koke i ka wela a hiki ke hoʻomaʻamaʻa i nā ʻaoʻao, hāʻawi ka alumina i kahi ʻoluʻolu, ʻoi aku hoʻi ka ʻāina kuke, kūpono no nā kīʻaha palupalu e like me ka custard, nā kīʻaha, a me nā gratins.
Kona hoemi ulu wela (~ 8 × 10 ⁻⁶/ K) hāʻawi i ke kūʻē i ka haʻalulu wela, e ʻae ana i ka hoʻololi pololei ʻana mai ka pahu hau hau a i ka umu (maʻa mau e like me 1000 ° F a i ʻole 540 ° C)me ka mokuahana ole– kahi hiʻohiʻona i hoʻohālikelike ʻole ʻia e nā koho keramika a i ʻole aniani.
2.2 ʻO ka ikaika o ka mīkini a me ka paʻakikī lōʻihi
Loaʻa i nā porcelains alumina ka ikaika compressive kiʻekiʻe (kokoke 2000 MPa) a me ka paʻa loa (9 ma ka pālākiō Mohs, 2nd i daimana a me cubic boron nitride), ʻo ia ke kūpaʻa loa iā lākou i ka ʻoki ʻana, poino, a komo.
Mālama kēia paʻa i ka mālama ʻana o nā kīʻaha kīʻaha i ko lākou ʻano hoʻolālā a me nā hiʻohiʻona ʻike i nā makahiki o ka hoʻohana kope ʻana., holoi, a me ka paikikala wela.
ʻO ka nele o nā mea hoʻopaʻa kūlohelohe a i ʻole nā uhi uhi e hoʻopau i nā pilikia o ka hemo-gassing, ka waihoʻoluʻu, a i ʻole ka pōʻino e pili ana i nā lining polymer non-stick (e.g., PTFE) i nā wela kiʻekiʻe.
ʻO ka alumina ka mea hiki ʻole ke hoʻomālamalama UV, pulu, a me nā kemika maʻamau o ka lumi kuke, i loko o nā meaʻai acidic a alkaline, nā mea holoi holoi, a me nā mea hoʻomaʻemaʻe.
Ma ka hopena, ʻaʻole ia e ʻala a ʻono paha, ka pale ʻana i ka hoʻohaumia ʻana ma waena o nā kīʻaha a me ka hōʻoia ʻana i ka hoʻomākaukau ʻana i ka meaʻai maʻemaʻe.
Ke hana pono ʻia e pale i ka hopena me nā wahi ʻili paʻa, Hōʻike nā ipu alumina a me nā pā i ke ola lawelawe koʻikoʻi, ʻoi aku ka maikaʻi o nā porcelains maʻamau a me nā mea ʻē aʻe he nui.
3. Nā Pōmaikaʻi Pono ma nā Hana Kuina
3.1 ʻO ka Inertness Kemika a me ka palekana o ka meaʻai
Ma waena o nā pōmaikaʻi koʻikoʻi o ka alumina ceramic baking meaʻai ʻo ko lākou piha piha inertness ma lalo o nā kūlana hoʻomākaukau meaʻai..
ʻAʻole lākou e hoʻolei i nā kila, plasticizers, a i ʻole nā mea haumia ʻē aʻe i loko o ka meaʻai, ʻoiai ke kau ʻia i nā mea ʻakika e like me nā tōmato, waina ʻulaʻula, aiʻole citrus, hiki ke hoʻoheheʻe i nā lako kīhini kila a i ʻole nā papa polymer.
Hoʻolilo kēia i ka alumina i huahana kūpono no nā meaʻai olakino a i kaupalena ʻia i ka lāʻau, me nā mea e pono ai ka paʻakai liʻiliʻi, metala ʻole, a i ʻole ka hoʻomākaukau ʻana i ka maʻi allergen.
ʻO ka ʻili o ka porous, ʻoi aku ka maikaʻi i ka wā i poni ʻia, kū'ē i ka colonization bacteria a hoʻopau koke ʻia, e hoʻokō i nā kūlana olakino koʻikoʻi no nā wahi kuke hale a me nā ʻoihana.
ʻO nā kino hoʻomalu e like me ka FDA a me ka EU meaʻai kelepona huahana kuhikuhi e ʻike i ka alumina maʻemaʻe kiʻekiʻe he palekana no ke kāhea ʻana i ka meaʻai., ʻoi aku ka hōʻoia ʻana i kona hiki ke hoʻohana i ka kuke kuke.
3.2 Hana Kuke a me nā maʻamau maʻamau
Pili ka ikehu a me ka microstructure o alumina i kona kamaʻilio ʻana me ka meaʻai, hāʻawi ʻana i kahi ʻano semi-non-stick kūlohelohe, ʻoi aku ka maikaʻi i ka wā i hoʻomoʻa ʻia a hoʻomaʻemaʻe ʻia.
'A'ole like me ka polymer-based non-stick covers that break down over 260 ° C (500 ° F), paʻa mau ka alumina a me ka hana ʻana i nā pae wela o ka kuke ʻana a me ka hoʻolapalapa ʻana.
ʻO kona hiki ke hoʻomanawanui i ka hoʻohana ʻana i ka broiler a i ʻole ka hoʻohana ʻana i ka grill hiki i ka browning, caramelization, a me nā pane ʻo Maillard me ka ʻole o ka hoʻoweliweli ʻana i ka pau ʻole a i ʻole ka uahi ʻona.
Eia hou, Hoʻonui nā hale radiative o ka huahana i ka hoʻoili wela infrared, hoʻolaha ʻana i ka ʻeleʻele o ka ʻili a me ka hoʻokumu ʻana o ka ʻōpala i nā meaʻai i kālua ʻia.
Hōʻike kekahi poʻe i ka ulu ʻana o ka ʻono a me ka paʻa ʻana o ka wai i ka wā e hoʻohana ai i nā kīʻaha alumina, ʻike ʻia i ka hoʻomehana ʻana i ka home a me ka pilina ma waena o ka ipu a me ka meaʻai.
4. Hoʻomau, Mākeke Fads, a me ka holomua o ka wā e hiki mai ana
4.1 Ka Pili Kaiapuni a me ke Kaiapuni Ola
Hāʻawi nā kīʻaha alumini ceramic i nā ʻano kīhini mau loa ma muli o ko lākou lōʻihi, hana hou, a me ka hana mana.
ʻOiai ʻo ka hana mua ka ikaika o ka ikehu ma muli o ke kiʻekiʻe o ke kiʻekiʻe o ka sintering, ka lōʻihi o ke ola– maʻa mau makahiki– hoʻopau i kēia kapuaʻi me ka manawa.
I ka hopena o ke ola, Hiki ke ʻoki ʻia a hoʻohana hou ʻia ka alumina e like me ka hōʻiliʻili ʻana i nā huahana kūkulu a i ʻole e hoʻoponopono hou ʻia i loko o nā mea seramika hou., ka emi ʻana o ka ʻōpala ʻāina.
ʻO ka loaʻa ʻole o nā uhi a i ʻole nā laminates e hoʻolōʻihi i ka hoʻokuʻu ʻana a hoʻohaʻahaʻa i ka microplastic a i ʻole nā pilikia kino..
Hoʻohālikelike ʻia me nā pā alumini māmā ʻaʻole hiki ke hoʻohana hou ʻia a i ʻole nā pana lāʻau paʻa ʻole, ʻO nā kīʻaha alumina hoʻohana lehulehu e hōʻike ana i kahi hoʻolālā kūlana hoʻokele pōʻai i nā waiwai home.
Ke hoʻonui nei nā mea hana i nā kumuwaiwai ikehu hou a me nā ʻōnaehana hoʻolaʻa wela-wela i nā kiln e hōʻemi hou i ka hopena kalapona o ka hana ʻana..
4.2 ʻenehana a me ka hoʻohui akamai
ʻO nā ʻano e kū mai ana ka hoʻohui ʻana o nā seramika alumina me nā mea hou kuke akamai, e like me nā ʻāpana ʻike wela i hoʻopaʻa ʻia a i ʻole nā hōʻailona RFID no ka papahana umu.
Ke ʻimi nei nō hoʻi ke aʻo ʻana i nā framework composite– e like me ka alumina i hoʻoikaika ʻia me ka silicon carbide a i ʻole zirconia– e hoʻoikaika i ka paʻa a hoʻoikaika i ka pale ʻana me ka ʻole o ka ʻai ʻana i ka pono wela.
Ke kūkulu ʻia nei nā papa ʻāina i hana ʻia e Nano e hoʻolako i nā hana non-stick maoli ʻoiai e mālama ana i ka palekana a me ka lōʻihi o ka waiwai..
Ma nā wahi kuke ʻoihana a modular, Ke hana ʻia nei nā kīʻaha alumina maʻamau no ka hoʻohālikelike ʻana me nā umu combi, pahu pahu hau, a me nā ʻōnaehana wahi mālama ʻakomi, ka hoʻomaʻamaʻa ʻana a me ka hoʻohaʻahaʻa ʻana i nā mea hana hana.
Ke hoʻonui nei ka makemake o nā mea kūʻai aku no ka palekana, lōʻihi lōʻihi, a me nā mea kuke ʻoluʻolu, Ua mākaukau nā kīʻaha alumina ceramic e pāʻani i kahi hana nui i ka hanauna e hiki mai ana o ka hana kiʻekiʻe., mea hoʻomoʻa olakino.
I ka hopena, ʻO ka alumina ceramic baking recipes e hōʻike ana i ka hoʻohui ʻana o nā mea hou i ka noiʻi ʻepekema a me ka hoʻolālā culinary noʻonoʻo..
ʻO kā lākou kūpaʻa wela kupaianaha, ikaika mechanical, palekana a me ka palekana kemika, a ʻo ka hoʻomau ʻana o ke kaiapuni e hoʻolilo iā lākou i mea koʻikoʻi i ka ʻenehana kuke kuke o kēia wā.
5. Mea hoolaha
Alumina Technology Co., Ltd e nānā i ka noiʻi a me ka hoʻomohala ʻana, ka hana ʻana a me ke kūʻai ʻana i ka pauka alumini oxide, nā huahana alumini oxide, alumini oxide crucible, etc., lawelawe i ka uila, seramika, kemika a me nā ʻoihana ʻē aʻe. Mai kona hoʻokumu ʻia ʻana ma 2005, ua kūpaʻa ka hui i ka hāʻawi ʻana i nā mea kūʻai aku i nā huahana a me nā lawelawe maikaʻi loa. Inā ʻoe e ʻimi nei i ke ʻano kiʻekiʻe alumina oxide, e ʻoluʻolu e hoʻokaʻaʻike mai iā mākou.
Nā huaʻōlelo: Paʻa Baking Alumina, ʻAlumina Keramika, alumina
ʻO nā ʻatikala a me nā kiʻi a pau mai ka Pūnaewele. Inā loaʻa kekahi pilikia kope, e ʻoluʻolu e kelepona mai iā mākou i ka manawa e holoi ai.
E nīnau iā mākou