Ko te silicon carbide i whakatōngia-tauhohenga he momo uku hangarau-teitei hou, he kaha teitei, he pakeke teitei, he ātete pai ki te kakahu me te ātete ki te waikura, ā, he whānuitia te whakamahinga i roto i te whakarewa, te matū hinu, te hikohiko, te rererangi me ētahi atu mara. Ko te hua me te silicon carbide i whakakoi i te waro pango āwhina, te graphite me ngā momo tāpiritanga, mā te whakamahi i ngā tikanga pēhi maroke, te extrusion, te ringihanga rānei hei hanga i te kounga porous, kātahi ka whai ake kia mārama ai ki te tikanga whakaputa o te silicon carbide i whakatōngia tauhohenga!
Te whakamahi i te silicon carbide hei whakamahana i te sintering tauhohenga He kaupapa hangarau tino pakari tēnei i muri i ngā mano o ngā whakamātautau a te kaihanga mō ngā tau maha hei whakatairanga i te tauira rauemi mata me te tukanga whakaputa, inā koa te tukanga whakamahana tonu ahurei.
I roto i te kereme 1 o te mea hou, ko te taumaha o te paura silicon carbide he 5~8 ngā wāhanga, ko te waro pango he 0.5-1.5 ngā wāhanga, ko te graphite he 1-1.5 ngā wāhanga, ā, ko te mea here he 0.1-0.5 ngā wāhanga. I roto i ēnei, ko te pikinga rahi o te witi o te silicon carbide he sic(90-30m)3-5 ngā wāhanga, sic)30-0.8m)2-3 ngā wāhanga. I tāpirihia te methyl cellulose me te paura PVA o te kahera ki roto i te nui o te wai e tika ana, 0.1-0.5 ngā wāhanga, ā, i whiwhihia te otinga mārama i muri i te whakamahana.
1. Whakaranua ngā momo paura katoa, ngā piripiri me ngā otinga kua whakaritea kia rite ki te tauira, ka whakaohokia kia pai.
2, horoia te korehau o te pokepokea ai, tae atu ki te 0.1Mpa, werohia te paru whakaranu ki te pēhanga. I muri i tētahi wā, ka tukuna te paru, ka tangohia te mea para. Puritia ki te 30-70 mō ngā hāora 18-20 kia maroke.
3. Kutikutia te pepa kia rite ki ngā whakaritenga o te tuhi.
4, tāpirihia te pire sintering tauhohenga ki roto i te oumu, tāpirihia te taumaha o te 1-3 wāhanga o te konganuku silicon, sintering korehau. Ka wehea te tukanga ki te pāmahana iti 0-700, ka puritia mō te 3-5 hāora; pāmahana waenga 700-1400, ka puritia mō te 4-6 hāora; pupuri i te pāmahana teitei 1400-2200 mō te 5-7 hāora. Whakahekehia te pāmahana ki raro i te 150, kati te oumu ka whakatuwhera i te oumu.
5, te mata o te hua huri kirikiri, te para silicon, me te huri kirikiri.
6, waiho ngā hua tukatuka waikura ki roto i te oumu waikura, mō ngā hāora 24 ki te 1350, whakamatao māori. Tangohia, tirohia, ka rongoa.
He pūtaiao, he whaitake hoki ngā rauemi mata me te ōwehenga i whakamahia e te tikanga o te mahi hou, kia nui ai te āputa o te papa, kia pai ake ai te matotoru o te papa; mā te tere whakamahana pai ake, te pāmahana me te wā pupuri ka nui ai te kaha piko o te hua. Ko te mahi matua me te kounga o tēnei tikanga kua eke ki te taumata matatau o te ao. Ko ōna tohu matua koia ēnei:
Te whakatinanatanga motuhake o te silicon carbide i roto i te sintering tauhohenga
Te Whakatinanatanga 1 Tikanga mō te hanga i ngā paihere karawiti silicon kua tauhohehia:
1, ko te taumaha o te rauemi mata he 0.3 ngā wāhanga o te piripiri, tāpirihia he nui o te wai, whakaohokia kia ōrite, ko te taumaha he 6.8 ngā wāhanga o te paura silicon carbide (rahi matūriki 90-30m o 3.8 ngā wāhanga, 30-0.8m o 3 ngā wāhanga), pango waro 1 wāhanga, pango
2. I te ringihanga, tuatahi horoia te pokepokea ai, whakaritea te pokepokea ai, whakapirihia ki ngā here, tōia te paru mai i te tāke ki te pēhanga, whakakīia te tāke ki te hauota pēhanga 0.1Mpa, ringihia te pēhanga, ka pana te paru ki roto i te pokepokea ai. Kia tae ki te 1 hāora, ka tukuna te paru, ā, i muri i te 6 hāora, ka tangohia te pokepokea ai, ka tangohia te rauemi papatahi, ka whakamarokehia te rūma whakamaroke. 30-70, 18-20 hāora hei tango. 3. I te whakatikatika i te papatahi, tuatahi tirohia mēnā ka tutuki te papatahi i ngā whakaritenga hoahoa. Kia tutuki ngā whakaritenga, whakatikahia te papatahi kia rite ki te tuhi. Whai muri i te tirotiro, tukuna ki te rūma whakamaroke pāmahana teitei.
4. Kia tae te makuku o te tauhohenga sintering ki te 1%, tangohia mai, horoia te billet ki te hau pupuhi, ka paunatia. Tāpirihia he 2.9 wāhanga o te konganuku silicon. Ka taea te pupuhi i te hauota ki roto i te sintering korehau. Te tukanga sintering i te pāmahana iti 700 mō ngā hāora e 4; pāmahana waenga 1400, 5 hāora; pāmahana teitei 2200,6 hāora. Ina heke te pāmahana mō ngā hāora e 12, ka tae ki te 150, kati te mahi i roto i te oumu ka whakatuwhera i te oumu.
5. I muri i te putanga mai o te hua maimoatanga onepū, ka hurihia te mata o te silicon standard Chartered, ā, ka hurihia ki te onepū.
6. Ko te kaupapa o ngā hua maimoatanga waikura he tango i ngā waikura i puta i te tukanga whakapūkara. Ka whakamahanahia te hua ki te 1350 mō ngā hāora 24 i roto i te oumu waikura, kātahi ka whakamataohia mā te taiao. I muri i te tangohanga, ka rongoatia mā te tirotiro.
He pūtaiao, he whaitake hoki ngā rauemi mata me te ōwehenga i whakamahia e te tikanga o te mahi hou, kia nui ai te āputaputa o te papa, kia pai ake ai te matotoru o te papa; mā te tere whakamahana pai ake, te pāmahana me te wā pupuri ka nui ake te kaha piko o te hua. Ko te mahi matua me te kounga o ngā hua i hangaia e tēnei tikanga kua eke ki te taumata matatau o te ao.
Koinei te tikanga whakaputa o te silicon carbide sintering tauhohe, ki te hiahia koe ki ētahi atu kōrero, tēnā koa whakapā mai!
Wā tuku: Pipiri-13-2023