Ko ngā ātete whakamahana wera e pā ana ki ngā ātete he nui te porosity, he iti te kiato papatipu, he iti hoki te kawe wera, e mōhiotia ana ko ngā ātete mama. Kei roto ko ngā hua ātete whakamahana, ngā muka ātete, me ngā hua muka ātete. E ai ki te pāmahana whakamahinga: ko ngā rauemi ātete whakamahana pāmahana iti, ko te pāmahana whakamahinga he iti iho i te 900 ℃, pērā i ngā pereki ātete diatomite, ngā hua silica whānui, ngā papa konupūmā silica, ngā hua perlite whānui, me ētahi atu; ko ngā ātete whakamahana pāmahana reo, ko te pāmahana whakamahinga 900 ~ 1200 ℃, pērā i ngā pereki ātete whakamahana uku, muka ātete silica konumohe, me ētahi atu; Ko ngā rauemi ātete whakamahana pāmahana teitei, ko te pāmahana whakamahinga he nui ake i te 1200℃, pērā i ngā pereki ātete whakamahana konumohe teitei, ngā pereki ātete whakamahana alumina, ngā pereki ātete whakamahana siliceous, ngā pereki pōro kau alumina, ngā pereki pōro kau zirconia, ngā muka ātete alumina teitei, ngā muka ātete polycrystalline (muka alumina polycrystalline, muka zirconia polycrystalline, muka mullite polycrystalline), me ētahi atu.
Ko te nuinga o te wā, ko te hanga i ngā hua ātete wera-ātete e whakamahi ana i ngā tikanga tukatuka ka taea te hanga i tētahi hanganga porous, pērā i te tikanga rauemi mata māmā, te tikanga tahunga, te tikanga pahuka, me te tikanga matū. Ko ngā muka ātete kore-āhua, pērā i ngā muka ātete konumohe silicate, ngā muka ātete alumina teitei, me ētahi atu, ka hangaia mā te rewa. Ko ngā muka ātete polycrystalline, pērā i ngā muka mullite, ngā muka alumina, me ētahi atu, ka hangaia mā te tikanga colloid.
Ko ngā āhuatanga matua o ngā whare whakamahana wera ko te nui o te porosity, neke atu i te 45%; te iti o te mātotoru papatipu, kāore e neke atu i te 1.5g/cm3; te iti o te kawe wera, iti iho i te 1.0W/(m·K). E whakamahia ana hei whakamahana wera mō ngā oumu ahumahi, ehara i te mea ka taea anake te whakaiti i te ngaronga wera o te oumu, engari ka whakaiti hoki i te rokiroki wera o te oumu, ka whiwhi i te pānga penapena pūngao pai rawa atu, me te whakaiti i te taumaha o ngā taputapu wera. Ki te whakatauritea ki ngā pereki whakamahana wera whānui, he iti te ātete o ngā whare whakamahana wera ki te waikura para, te kaha miihini, me te ātete kakahu. Nō reira, kāore e pai mō te hanganga pikaunga o te oumu me ngā wāhanga e pā tika ana ki te para, te utu, te konganuku rewa, me ētahi atu.
Tikanga whakarōpūtanga o ngā hua ātete whakamahana
Ko ngā hua ātete werawera e pā ana ki ngā hua ātete werawera me te porosity kāore i te iti iho i te 45%. Ko ngā āhuatanga matua o ngā hua ātete werawera ko te porosity teitei me te iti o te kiato rōrahi. He iti te kawe werawera, he iti te kaha wera, ā, he pai te mahi ātete wera. He tiaki wera, he ātete wera hoki. Ka taea te whakamahi hei paparanga ātete wera mō ngā taputapu wera maha, ā, ka taea hoki te whakamahi i ētahi hei paparanga mahi. He rauemi penapena hiko mō te hanga i ngā oumu maha. Mā te whakakapi i ngā hua ātete werawera mō ngā hua ātete matotoru whānui hei rauemi hanga oumu ka taea te whakaiti i te rokiroki wera me te ngaronga wera mā te 40% ki te 50%, inā koa mō ngā taputapu wera kore haere tonu.
He maha ngā momo hua whakamahana me ngā hua ātete ahi, e wehea ana kia toru ngā wāhanga e ai ki te pāmahana whakamahinga, te matotoru papatipu, me te āhua o te hua.
(1) Whakarōpūtia e te mātotoru o te tinana. Ko ngā mea he mātotoru papatipu o te 0.4~1.3g/cm3 he pereki māmā; ko ngā mea he iti iho i te 0.4g/cm3 he pereki tino māmā.
(2) Whakarōpūtia mā te pāmahana whakahaere. Whakamahia te pāmahana 600~900℃ mō ngā rauemi whakamarumaru pāmahana-iti; 900~120℃ mō ngā rauemi whakamarumaru pāmahana-waenga; neke atu i te 1200℃ mō ngā rauemi whakamarumaru pāmahana-tiketike.
(3) Whakarōpūtia e te āhua o te hua: ko tētahi he pereki ātete māmā te āhua, tae atu ki te uku, te alumina-teitei, te silicon, me ētahi pereki ātete waikura parakore; ko tētahi he pereki ātete māmā kāore i te āhua, pērā i te raima ātete māmā.
He rerekē te tikanga whakaputa o ngā hua ātete-wera i tērā o ngā rauemi matotoru whānui. He maha ngā tikanga, ko te nuinga ko te tikanga tahunga, te tikanga pahuka, te tikanga matū, me te tikanga rauemi pūwero.
1) Te tikanga tahu me te tāpiri rauemi. Ka kiia hoki ko te tikanga tāpiri i ngā mea mura. Tāpirihia ngā mea mura e ngāwari ana ki te tahu, pērā i te waro, te wahie rakau, me ētahi atu, ki roto i te paru hanga pereki kia whai pūwero te hua i muri i te tahu.
2) Tikanga whakamākūkū. Tāpirihia he mea whakapūpū, pērā i te hopi rōsin, me ētahi atu mea ki te paru hei hanga pereki, ā, whakapūpū mā te tikanga miihini. I muri i te tahunga, ka puta he hua pūwero.
3) Tikanga matū. Mā te whakamahi i tētahi tauhohenga matū ka taea te whakaputa hau tika, ka whiwhihia he hua pūngāwerewere i roto i te tukanga hanga pereki, ko te nuinga he dolomite, he periclase rānei me te gypsum, me te waikawa whanariki hei kaihoko pahuka.
4) Tikanga rauemi pūwero. Whakamahia te oneone diatomaceous tūturu, te pahuka uku horihori rānei, ngā porowhita pūwero alumina, zirconia rānei, me ētahi atu rauemi mata pūwero hei hanga pereki māmā ātete-wera.
Mā te whakamahi i ngā hua ātete whakamahana he iti te kawe wera me te iti o te kaha wera hei rauemi hanganga tinana oumu ka taea te penapena i te whakapaunga wahie; te whakapai ake i te pai o te whakaputa taputapu; ka taea hoki te whakaiti i te taumaha o te tinana oumu, te whakahaere i te hanganga oumu, te whakapai ake i te kounga o te hua, me te whakaiti i te pāmahana taiao. Te whakapai ake i ngā āhuatanga mahi. Ko ngā hua ātete whakamahana he mea whakamahi hei paparanga whakamahana wera, hei arai, hei paparanga whakamahana rānei o te oumu.
1. Ngā pereki ātete-whakamātao alumina
Ko ngā pereki ātete wera-ātete alumina e whakamahi ana i te korundum whakaranu, te alumina kua whakakāhia, me te alumina ahumahi hei rauemi mata matua hei hanga hua ātete wera-ātete he ātete kaha ki te hau waikawa me te kawakore me te ātete whakaiti, ā, he ātete pai ki te ru wera. Ka taea te whakamahi mō te wā roa i raro i te 1700℃. E rua ngā momo tikanga whakaputa e whakamahia ana e te tukanga whakaputa: te tikanga pahuka me te tikanga tāpiri tahunga. Ko ngā hua e hangaia ana e te tikanga pahuka he āhuatanga o te hanganga ōrite, te kawe wera iti, me te mahi ātete wera pai.
He māmā ngā pereki ātete wera konumohe, he kaha pēhi teitei, he iti te kawe wera, he iti te whakahekenga rōrahi i muri i te tahunga anō, ā, he pai te ātete ki ngā ru wera. Ka taea te whakamahi mō ngā paparanga ārai wera o ngā taputapu wera pāmahana teitei, o ngā oumu rānei e pā tika ana ki ngā mura. Me te arai mahi o ngā taputapu wera tino tika, engari kāore e pai mō te wāhi waikura e pā tika ana ki te wai oumu me te para rewa. He nui ake te pumau ina whakamahia i roto i te hau whakaiti. Ko te pāmahana whakamahinga e whakawhirinaki ana ki te parakore o te hua, tae atu ki te 1650~1800°C. Tirohia te Ripanga 3-105 mō ngā taupū ā-tinana me te matū noa o aua hua.
2. Ngā pereki ātete wera-konumohe teitei
Ko ngā pereki ātete wera-konumohe teitei he hua ātete wera-ātete, ā, ko te ihirangi he 48% te iti iho i te mea i hangaia mai i te rauemi mata matua. Ko ngā pereki ātete wera-konumohe teitei he mea hanga mai i te bauxite hei rauemi mata, me te uku hei rauemi mata, me te whakaranu ki ngā mea here me te puehu rakau. Hei whakapai ake i te mahi a te hua, ka tāpirihia te alumina ahumahi, te korundum, te silimanite, te kyanite, me te silica. Ka taea te hanga paura pai hei hua me ngā matotoru papatipu rerekē me ngā pāmahana whakamahinga mōrahi rerekē. Ko te tikanga, ko te pāmahana whakamahinga he 1250~1350℃, ā, ko ētahi ka eke ki te 1550℃.
Ko te tikanga pahuka te nuinga o te wā e hangaia ai ngā pereki whakamarumaru konumohe-tiketike, ā, ko te matotoru o te rōrahi o te hua kei waenga i te 0.4~1.0g/cm3, ā, ka taea hoki te hanga mā te tikanga tāpiri tahunga. Kei te Ripanga 3-106 ngā taupū ā-tinana me te matū o ngā pereki ātete wera konumohe-tiketike.
Ka taea te whakamahi i ngā pereki ātete wera-konumohe teitei hei hanga paparanga ātete wera me ngā wāhanga kāore e waikura, e horoia rānei e ngā rauemi rewa kaha i te pāmahana teitei. Ina pā tika ki te mura, kaua e neke ake i te 1350℃ te pāmahana pā o te mata o ngā pereki ātete wera-konumohe teitei whānui. Ka taea e ngā pereki ātete wera-mullite te pā tika ki te mura, ā, he āhuatanga ātete pāmahana teitei, he kaha teitei, he pānga penapena hiko nui. He pai mō te whakapuru i ngā oumu pyrolysis, ngā oumu hau wera, ngā oumu roera uku, ngā oumu porcelain hiko, me ngā oumu ātete rerekē. Ka taea te whakamahi i te pereki ātete wera-corundum-mullite me te ihirangi Al2O3 o te 82.4% hei whakapuru oumu i te 1550°C.
3. Ngā pereki ātete-haumaru i ahu mai i te uku
Ko ngā pereki uku ātete wera he hua ātete wera, he 30%-48% te ihirangi Al2O3, he mea hanga ki te uku ātete hei rauemi mata matua, mā te whakamahi i te uku ātete, ngā pīrere mānu, me te kirikiri uku ātete hei rauemi mata, me te tāpiri i ngā here me te wahie rakau. Mā te whakaranu, te whakaranu, te hanga, te whakamaroke, me te tahu, ka taea te whiwhi hua he matotoru te matotoru o te 0.3~1.5g/cm3, ā, neke atu i te haurua o ngā pereki ātete wera te rahinga whakaputa.
Ko te tikanga tāpiri tahunga me ngā pītiti mānu te tikanga whakaputa e whakamahia whānuitia ana mō ngā pereki uku ātete wera, ā, ka taea hoki te whakamahi i te tikanga pahuka. Tirohia te Ripanga 3-107 mō ngā taupū ā-tinana o ngā pereki uku ātete wera.
He whānuitia ngā whakamahinga o ngā pereki ātete wera uku. Ko te nuinga o te wā ka whakamahia i roto i ngā taputapu wera me ngā oumu ahumahi. Ka taea te whakamahi mō ngā wāhanga kāore i waikura, kāore hoki i horoia e ngā rauemi rewa kaha i te pāmahana teitei. Ko ētahi mata e pā tika ana ki te mura ka pania ki tētahi paparanga. Ka taea e te paninga ātete te whakaiti i te horo o te para me te puehu hau oumu, me te whakaiti i te kino. Kāore te pāmahana mahi o te hua e neke ake i te pāmahana whakamātautau o te raina whakahoki. Ko te pereki ātete uku he momo rauemi ātete māmā he maha ngā pūwero. He 30% ki te 50% te pūwero o tēnei rauemi, ā, he ngoikore te ātete wera, engari he pai tōna kaha miihini me tōna ātete waikura.
4. Pereki ātete-haumaru silicone
Ko te pereki ātete wera-whakamarumaru hiraka he mea hanga ki te hiraka hei rauemi mata matua, ā, ko te hua ātete wera-whakamarumaru he iti iho i te 91% te ihirangi SiO2. Haunga ngā āhuatanga ātete wera, ka mau tonu ngā āhuatanga o ngā pereki ātete hiraka ki ngā pereki hiraka. He teitei te pāmahana tīmatanga o te whakangawari kawenga, ā, ka paku whānui te rōrahi i te wā whakamahana, ka whakarei ake i te pakari o te oumu.
Ko te mahi a te pereki ātete wera-whakamarumaru kiripaka o te karaehe GGR-1.20 mō ngā oumu ahumahi kua tohua i roto i te Paerewa Ahumahi Whakarewa o Haina YB386-1994, kāore te kiato papatipu e neke atu i te 1.2g/cm3, kāore te kaha pēhi i te pāmahana rūma e iti iho i te 5MPa, ā, ko te pāmahana tīmatanga o te whakangawari i raro i te kawenga i raro i te 0.1MPa e kore e iti iho i te 1520℃, ā, kāore te ihirangi SiO2 e iti iho i te 91%.
He pai tēnei hua mō te whakapuru i ngā oumu ahumahi, i ngā paparanga whakamahana rānei e kore e pā tika ki ngā rauemi rewa pāmahana teitei, e kore hoki e pā tika ki ngā hau waikura. Kāore te pāmahana mahi o te mahi pereki e neke ake i te 1550°C.
He kino ake ngā pereki ātete wera e hangai ana ki te hiraka ki te tinana tangata nā te puehu hiraka, ā, he uaua ake te tukanga i te uku me ngā pereki ātete wera konumohe-nui, ā, he iti noa te wāhanga o te katoa o ngā rauemi ātete wera.
5. Pereki ātete-whakamātao diatomite
Ko te pereki whakamahana wera diatomite he hua ātete whakamahana i hangaia mai i te diatomite hei rauemi mata matua. He pai ngā kōhao kua kati te pereki whakamahana wera diatomite, he nui te porowhita, he pai te mahi whakamahana, engari he iti te kaha miihini, ina koa ka heke te kaha i muri i te makuku. Ko tōna hanganga matū matua ko te SiO2, ā, muri iho ko te Al2O3, me te rino me te pāhare pāporo. , te konutai, te konupūmā, ngā waikura konupora me ētahi atu poke.
Kei te Ripanga 3-108 ngā taupū ā-tinana o ngā pereki whakamahana diatomite. He iti te ātete wera o ngā pereki whakamahana diatomite, ā, ko te ātete wera he tata ki te 1280 ℃ anake, nō reira kāore i te teitei te pāmahana whakamahinga. Ka taea anake te whakamahi i roto i te paparanga whakamahana i raro i te 900°C.
6. Ngā hua perlite kua whakawhānuihia
Ko ngā hua perlite whakawhanui he hua ātete wera i hangaia ki te perlite hei wāhanga matua. Ko ngā hua ātete i hangaia ki te perlite whakawhanui hei kopa me te sima, te karāhe wai, te phosphate, me ētahi atu mea e tika ana, i muri i te whakaoho, te whakaranu, te hanga, te whakamaroke, te tunu, te whakamaroke rānei. He iti noa te mātotoru o te perlite whakawhanui, ko te tikanga he 40~120g/cm3 anake; kāore i te teitei te ātete, ko te tikanga he 1280~1360°C. He rerekē te pāmahana whakamahinga mōrahi o ngā hua me ngā here rerekē, i raro iho i te 1000°C.
Ka whakarōpūtia ngā hua perlite whakawhanui ki ngā kāwai 200, 250, 300 me te 350kg/m34 i runga anō i te matotoru o ngā hua i roto i te paerewa ā-motu. E ai ki te momo sima e whakamahia ana, ka wehea ki ngā hua perlite whakawhanui here-sima, ngā hua perlite whakawhanui here-karaehe wai, ngā hua perlite whakawhanui here-phosphate, me ngā hua perlite whakawhanui here-ara.
7. Ngā hua vermiculite kua whakawhanuitia
Ko ngā hua vermiculite whakawhanui he hua ātete wera me te vermiculite whakawhanui hei rauemi mata matua. Ko te hanga o ngā hua vermiculite whakawhanui e hangai ana ki tētahi rahi o te vermiculite whakawhanui hei rauemi whakakotahi, te tāpiri i ngā ranunga me ngā here, te whakaranu ki te wai i tētahi ōwehenga, me te hanga, te whakamaroke, te tunu, te whakamaroke rānei hei hanga hua whakamahana wera. Ko ngā hua he rerekē te matotoru o te puranga, ngā ranunga, me ngā here he rerekē te pāmahana whakamahinga mōrahi, ā, ko ngā paparanga whakamahana i raro i te 1000°C te nuinga o te wā e whakamahia ana. He maha ngā momo hua vermiculite whakawhanui, e whakarōpūtia ana i runga i te momo here e whakamahia ana me te momo rauemi whakakotahi e whakamahia ana. E ai ki te rauemi whakakotahi, ka taea te wehewehe ki ngā hua rauemi whakakotahi waro, ngā hua rauemi whakakotahi kore-waro me ngā hua rauemi whakakotahi hiato waro me te kore-waro. E ai ki te momo rauemi whakakotahi e whakamahia ana, ka taea te wehewehe ki ngā hua rauemi whakakotahi kotahi, ngā rauemi whakakotahi maha me ngā hua rauemi whakakotahi.
He iti te kawe wera o te vermiculite whakawhanui, he iti te kaha, ā, kāore e taea te ātete wai, nō reira he tino herea tana whakamahinga. Ina whakamahia he rauemi sima kaha-teitei hei hono i te vermiculite whakawhanui ki tētahi hua kua oti, ka nui ake tōna kaha i te vermiculite whakawhanui, ā, ka taea te tu atu i te kawenga nui ake; ina whakamahia he rauemi sima ātete wai hei hono i te vermiculite whakawhanui, ka whai hua ātete wai te hua ka puta, ā, ka taea te whakamahi i ngā wāhi he wai. Ko te kawe wera o te mea here he teitei ake i te vermiculite whakawhanui, nō reira mā te tāpiri i te mea here ka whai whakamahinga hou te kōhatu tio whakawhanui, engari ka whakaitihia hoki te pānga whakamahana o te vermiculite whakawhanui.
8. Papa konupūmā silicon
He mea hanga te papa konupūmā silicate ki te oneone diatomaceous me te raima hei rauemi mata matua, ā, ko ngā hua ātete-wera i hangaia mā te tāpiri i te muka whakakaha ka kiia hoki ko te papa konupūmā silicate me te papa konupūmā silicate microporous. E rua ngā wāhanga o te papa konupūmā silicate e ai ki tōna hanganga: ko tētahi he papa konupūmā silicate noa, ko te hanganga matū o CaO/SiO2 he tata ki te 0.8, ko te hanganga kohuke he tobermorite (tobermorite, 5CaO·6SiO2·5H2O); ko tētahi he konupūmā silicate mārō, ko te hanganga matū o CaO/SiO2 he tata ki te 1.0, ā, ko te hanganga kohuke he konupūmā silicate mārō.
He tino pai ngā āhuatanga o te konupūmā silicate pērā i te iti o te kaha, te kaha o te wehenga, te iti o te kawe wera, te watea o te hanganga, me te iti o te tere ngaronga. Ko te matotoru o te papa konupūmā silicate e tohuhia ana i te ao kia kaua e neke atu i te 220kg/m3, ā, ko ētahi ka wehea anō kia 33 ngā momo kia kaua e neke atu i te 220kg/m3, kia kaua e neke atu i te 170kg/m3, kia kaua hoki e neke atu i te 130kg/m; kua whakarōpūtia a Haina kia kaua e neke atu i te 240kg/cm3, kia kaua e neke atu i te 220kg/cm3, kia kaua e neke atu i te 170kg/cm 33 ngā momo. Ko te kaha pēhi kei runga ake i te 0.4MPa, ko te kaha piko kei runga ake i te 0.2MPa; ko te kawe wera (70℃±5℃) ko te 0.049～0.064W/(m·K) te pāmahana whakahaere teitei rawa, ā, ko te torbe mullite he 650℃, ko te momo konupūmā silicate he 1000℃.
Ka taea te kani, te whao rānei i te papa konupūmā silicate, ā, ka taea te hanga hei papa, hei poraka, hei anga rānei. Ka taea te whakamahi hei rauemi whakamahana mō ngā paipa wera me ngā oumu ahumahi i roto i te hiko, te ahumahi matū, te whakarewa, ngā kaipuke, me ētahi atu; hei whakamahana ahi me te wera o ngā whare, ngā taputapu me ngā taputapu, ka taea hoki te whakamahi hei paparanga whakamahana o te oumu whakamaroke pāmahana teitei me te papa motuka oumu kauhanga; ka taea te whakapiri i ngā taha e rua o te papa konupūmā silicate ki te whakakikorua kirihou, te papa rakau, te papa sima asbestos, me ētahi atu. Ka taea te whakamahi hei rauemi whakamahana. Ko te nuinga o ngā rauemi hangarau whakamahana wera o te ao e whakamahi ana i te papa konupūmā silicate, ā, ko ētahi whenua e whakamahi ana i te papa konupūmā silicate mō te whakamahana wera i roto i te ahumahi e 70% ki te 80%.
9. Pereki Matūriki Mānu (Pereki Tāone)
Ko ngā pereki Cenosphere he hua ātete wera i hangaia mai i ngā cenosphere hei rauemi mata matua. I te tīmatanga o te tekau tau atu i 1970, ka tīmata tōku whenua ki te whakamahi i ngā cenosphere pungarehu rere hei hanga pereki ātete wera i runga i te uku. Nā te ngāwari o te tukanga me te nui o ngā rauemi, he pai te kounga o te hua. Mai i te tekau tau atu i 1980, kua whakamahia te tikanga clinker porous, te tāpiri rānei i ngā cenosphere pungarehu rere hei hanga pereki Cenosphere.
He porowhita kau ngā pereki Cenosphere, he mea hanga ki te karāhe konumohe silicate i mānuhia mai i te pungarehu rere mai i ngā tipu hiko wera. He mama, he angiangi te pakitara, he kau, he maeneene te mata, he iti te kawe wera, he pai te mahi whakamarumaru, he kaha te ātete ahi, me te kaha pēhi. Me ētahi atu mahi anō hoki. Mā te whakamahi i ēnei āhuatanga o ngā cenosphere, ka taea te hanga i ngā rauemi ātete ahi me te mahi tiaki wera tino pai. Ka taea te hanga i ngā pereki cenosphere mā te tikanga maroke-haurua, he tukanga ngāwari, kāore hoki e hiahiatia he tukanga whakaoti.
He pai ake ngā pereki Cenosphere i ngā rauemi whakamahana poraka-waenga o nāianei i runga i te kaha miihini, te ātete pāmahana teitei, te kawe wera, me te mahi whakamahinga, ā, he rite tonu ki ngā muka silicate. He whānuitia te whakamahinga o tēnei rauemi i roto i ngā oumu ahumahi pāmahana teitei i te pāmahana o te 1200°C hei whakatutuki i te kaupapa o te whakapai ake i te pai o te wera me te whakaiti i te whakapaunga pūngao. Ka whakamahia ngā pereki Cenosphere i roto i ngā oumu ahumahi me ngā taputapu pāmahana teitei i roto i te whakarewa, te mīhini, te matū, te hinu, ngā rauemi hanga, te ahumahi māmā, te hiko me ētahi atu rāngai. I te nuinga o te wā, ka taea e rātou te penapena pūngao mā te 15% ki te 40%. He momo hou pai tēnei o te arai māmā. Rauemi wera.
10. Pereki porowhita tuwhera
He pereki porowhita kōhao Arumina
He hua ātete wera te pereki porowhita kōhao alumina, ā, ko te rauemi matua ko te porowhita kōhao alumina. Ko ngā tohu hangarau noa o ngā pereki porowhita kōhao alumina ko: Kāore e iti iho i te 98% te nui o te Al2O3, Kāore e neke atu i te 0.5% te nui o te SiO2, Kāore e neke atu i te 0.2% te nui o te Fe2O3, Ko te mātotoru papatipu he 1.3~1.4g/cm3, Ko te porosity āhuahanga he 60%~80%, Ko te kaha pēhi he kāore e iti iho i te 9.8MPa, Ko te pāmahana whakangawari o te kawenga (0.2MPa) he kāore e iti iho i te 1700℃, ā, Ko te kawe wera he 0.7~0.8W/(m·K).
Ki te whakatauritea ki ngā hua whakamahana noa me ngā hua ātete ahi, he maha ngā pūwero kua kati i roto i te hua e tohuhia ana e te pereki porowhita kohao alumina. Nō reira, he kaha teitei, he pumau hoki te hanganga pūwero, he iti te mātotoru, he iti hoki te kawe wera. Ko te nuinga o te wā ka whakamahia mō ngā arai oumu ahumahi i raro i te 1800℃, pērā i ngā pereki arai oumu pāmahana-teitei i roto i ngā ahumahi ātete ahi, hikohiko, me te uku; ngā paparanga whakamahana mō ngā taputapu wera pāmahana-teitei, pērā i ngā oumu hau i roto i te ahumahi matū hinu, oumu hau, tauhohenga ahumahi waro, ngā pereki whakamahana mō ngā oumu whakapūngao i roto i te ahumahi whakarewa.
B Pereki porowhita tuwhera Zirconia
Ko te pereki porowhita zirconia he hua ātete wera i hangaia mai i ngā porowhita zirconia hei rauemi mata matua. Ko te wāhanga tioata matua o tēnei pereki he zirconia kuriki (tata ki te 70% ki te 80% o te hanganga kohuke), ā, ko tōna mahi noa ko: Ko te ātete he nui ake i te 2400℃, ko te porosity kitea he 55%~60%, ko te mātotoru rōrahi he 2.5~3.0g/cm3, ko te kaha pēhi kāore i raro iho i te 4.9MPa, ā, ko te kawe wera he 0.23~0.35W/(m·K).
He hua ātete wera ngā porowhita zirconia me te mahi tino pai. Ko te pāmahana haumaru mōrahi ko te 2200℃. He kaha teitei te pāmahana o ngā pereki porowhita zirconia me te hanganga pūngao pumau, nō reira ka taea te whakamahi haumaru i te pāmahana teitei o te 2200℃. He iti te mātotoru me te iti te kawe wera o ngā pereki porowhita zirconia, e kore e taea anake te whakaiti i te ngaronga wera, engari ka whakaiti hoki i te rokiroki wera. Nō reira, hei rauemi arai pāmahana teitei e pā tika ana ki te mura i roto i ngā taputapu wera pēnei i te whakarewa, te hinu, te ahumahi matū, te hikohiko, me ētahi atu, ka taea te whakaiti i te whakapaunga pūngao me te whakaiti i te taumaha o te oumu pāmahana teitei, ā, he pai te pānga whakamahinga.
Wā tuku: Whiringa-ā-rangi 26-2021