He rauemi pāmahana-tiketike nui te silicon carbide i whakatōngia ki te tauhohenga, he kaha teitei, he pakeke teitei, he ātete kakahu teitei, he ātete waikura teitei me te ātete waikura teitei me ētahi atu āhuatanga pai, e whakamahia whānuitia ana i roto i te mīhini, te rererangi, te ahumahi matū, te pūngao me ētahi atu mara.
1. Te whakarite rauemi mata
Ko ngā rauemi mata o te whakarite i te paura waro me te paura silicon hei hanga i te sintering tauhohe, ā, ka taea te whakamahi i ngā momo matū kei roto i te waro, pērā i te waro kōka, te karāpeti, te waro, me ētahi atu. Ko te paura silicon he paura silicon parakore teitei te rahi o te matūriki 1-5μm te rahi. Tuatahi, ka konatunatua te waro me te paura silicon ki tētahi ōwehenga, ka tāpirihia he nui e tika ana o te here me te kaihoko rere, ā, ka whakaohokia kia ōrite. Kātahi ka maka te ranunga ki roto i te mira pōro hei mira pōro kia rite ai te whakaranu me te huri kia iti iho te rahi o te matūriki i te 1μm.
2. Te tukanga whakapūtanga
Ko te tukanga whakapūtanga tētahi o ngā mahi matua o te hanga i te silicon carbide. Ko ngā tukanga whakapūtanga e whakamahia whānuitia ana ko te whakapūtanga pēhi, te whakapūtanga grout me te whakapūtanga static. Ko te tikanga o te whakapūtanga pēhi ko te whakauru i te ranunga ki roto i te whakapūtanga ka hangaia mā te pēhanga miihini. Ko te whakapūtanga grout e pā ana ki te whakaranu i te ranunga ki te wai, ki te whakarewa waro rānei, ka werohia ki roto i te whakapūtanga mā te werohanga i raro i ngā āhuatanga korehau, ā, ka hangaia te hua kua oti i muri i te tūnga. Ko te whakapūtanga pēhanga static e pā ana ki te ranunga ki roto i te whakapūtanga, i raro i te tiakitanga o te korehau, o te hau rānei mō te whakapūtanga pēhanga static, i te nuinga o te wā i te pēhanga o te 20-30MPa.
3. Te tukanga whakahinuhinu
Ko te whakapūtanga he taahiraa matua i roto i te tukanga hanga o te silicon carbide tauhohenga-whakapūtanga. Ka pā te pāmahana whakapūtanga, te wā whakapūtanga, te āhuarangi whakapūtanga me ētahi atu āhuatanga ki te mahi a te silicon carbide tauhohenga-whakapūtanga. I te nuinga o te wā, ko te pāmahana whakapūtanga o te silicon carbide tauhohenga kei waenga i te 2000-2400℃, ko te wā whakapūtanga he 1-3 hāora te roa, ā, he koretake te āhuarangi whakapūtanga, pērā i te argon, te hauota, me ētahi atu. I te wā o te whakapūtanga, ka pāngia te ranunga e te tauhohenga matū hei hanga tioata silicon carbide. I taua wā anō, ka tauhohe hoki te waro ki ngā hau i te āhuarangi hei whakaputa hau pērā i te CO me te CO2, ka pā ki te mātotoru me ngā āhuatanga o te silicon carbide. Nō reira, he mea tino nui te pupuri i te āhuarangi whakapūtanga me te wā whakapūtanga e tika ana mō te hanga o te silicon carbide tauhohenga-whakapūtanga.
4. Te tukanga i muri i te maimoatanga
Ko te warowaihā silicon kua whakatōngia ki te tauhohenga me whai tukanga maimoatanga-muri i muri i te hanga. Ko ngā tukanga maimoatanga-muri noa ko te miihini, te huri, te whakakanapa, te whakahāngai me ētahi atu. Kua hangaia ēnei tukanga hei whakapai ake i te tika me te kounga o te mata o te warowaihā silicon kua whakatōngia ki te tauhohenga. I roto i ēnei, ko te tukanga huri me te whakakanapa he tikanga tukatuka noa, ka taea te whakapai ake i te whakaotinga me te papatahi o te mata warowaihā silicon. Ka taea e te tukanga whakahāngai te hanga i tētahi paparanga waikura hei whakarei ake i te ātete waikura me te pumau matū o te warowaihā silicon kua whakatōngia ki te tauhohenga.
I roto i te poto, he tukanga uaua te hanga i te silicon carbide sintering tauhohe, me mātau ki ngā momo hangarau me ngā tukanga, tae atu ki te whakarite rauemi mata, te tukanga hanga, te tukanga sintering me te tukanga muri-maimoatanga. Mā te mātau whānui i ēnei hangarau me ngā tukanga ka taea te whakaputa rauemi silicon carbide sintering tauhohenga kounga teitei hei whakatutuki i ngā hiahia o ngā momo mara tono.
Wā tuku: Hōngongoi-06-2023