Nā ōna āhuatanga ā-tinana pai, kua whānuitia te whakamahinga o te silicon carbide kua whakakāhia hei rauemi mata matū nui. E toru ngā āhuatanga o tōna whānuitanga o te whakamahinga: mō te hanga i ngā mea whakakoi; Whakamahia hei hanga i ngā wāhanga whakamahana ātete - te tokotoko silicon molybdenum, te ngongo silicon waro, me ētahi atu; Mō te hanga hua ātete. Hei rauemi ātete motuhake, ka whakamahia i roto i te whakarewa rino me te maitai hei oumu rino pupuhi, te kupoara me ētahi atu tukatuka tā, te waikura, te pakaru ki te tūranga kaha o ngā hua ātete ahi; I roto i ngā whakarewa whakarewa onge (konutea, konumohe, parahi) mō te whakarewa oumu utu, te paipa kawe whakarewa rewa, te taputapu tātari, te kohua rawhi, me ētahi atu; Me te hangarau ātea hei pūwero hiku miihini tā, te mata turbine hau taiao pāmahana teitei tonu; I roto i te umanga silicate, he maha ngā momo whare oumu ahumahi, te oumu ātete momo pouaka utu, te saggar; I roto i te umanga matū, ka whakamahia hei whakaputa hau, carburetor hinu mata, oumu whakakorenga hau paru me ētahi atu.
Ko te whakamahinga parakore o ngā hua hanga α-SiC, nā te kaha nui, he tino uaua ki te huri hei paura ultrafine nanoscale, ā, ko ngā matūriki he pereti, he muka rānei, ka whakamahia hei huri hei kiato, ahakoa i roto i te whakamahana ki tōna pāmahana pirau huri noa, kāore e puta he takai tino kitea, kāore e taea te whakakorikori, he iti te taumata whakakīkī o ngā hua, ā, he ngoikore te ātete waikura. Nō reira, i roto i te whakaputanga ahumahi o ngā hua, ka tāpirihia he iti o te paura ultrafine β-SiC porowhita ki te α-SiC me te whiriwhiri i ngā tāpiringa hei whiwhi hua kiato teitei. Hei tāpiringa mō te here hua, kia rite ki te momo ka taea te wehewehe ki ngā waikura whakarewa, ngā matū hauota, te karāhe parakore teitei, pērā i te uku, te waikura konumohe, te zircon, te zirconium corundum, te paura raima, te karāhe whakakikoruatia, te silicon nitride, te silicon oxynitride, te karāhe parakore teitei me ētahi atu. Ka taea te whakamahi i te wai o te piripiri hanga hei hanga i tētahi, i ētahi atu rānei o te hydroxymethylcellulose, te emulsion acrylic, te lignocellulose, te māngaro tapioca, te wai konumohe waikura konumohe, te wai konumohe silicon dioxide, me ētahi atu. E ai ki te momo tāpiri me te rerekētanga o te nui o te tāpiri, kāore te pāmahana tahunga o te mea kiato e ōrite, ā, ko te awhe pāmahana he 1400~2300℃. Hei tauira, ko te α-SiC70% me te tohatoha rahi matūriki neke atu i te 44μm, β-SiC20% me te tohatoha rahi matūriki iti iho i te 10μm, te uku 10%, me te 4.5% otinga lignocellulosic 8%, he ōrite te whakaranu, he rite te pēhanga mahi 50MPa, he mura ki te hau i te 1400℃ mō te 4 hāora, ko te mātotoru kitea o te hua he 2.53g/cm3, ko te porosity kitea he 12.3%, ā, ko te kaha kume he 30-33mpa. Kei te Ripanga 2 ngā āhuatanga whakawera o ētahi momo hua me ngā tāpiringa rerekē.
I te nuinga o te wā, he kounga teitei ngā āhuatanga o ngā refractories silicon carbide kua whakatōngia ki te tauhohenga i ngā āhuatanga katoa, pērā i te kaha pēhi kaha, te ātete kaha ki te ru wera, te ātete pai ki te kakahu, te kawe wera kaha me te ātete ki te waikura whakarewa i runga i te whānuitanga o te pāmahana. Heoi, me kite hoki ko tōna ngoikoretanga ko te ngoikore o te pānga antioxidant, ka puta te whānui me te rerekētanga o te rōrahi i roto i te taiao pāmahana teitei hei whakaiti i te roa o te ratonga. Hei whakarite i te ātete waikura o ngā refractories silicon carbide kua whakatōngia ki te tauhohenga, he nui ngā mahi whiriwhiri kua mahia ki te paparanga hononga. Ahakoa te whakamahinga o te uku (kei roto ngā waikura whakarewa) e hanumi ana, kāore i puta he pānga parepare, kei te pāngia tonu ngā matūriki silicon carbide e te waikura hau me te waikura.
Wā tuku: Pipiri-21-2023