(1) Ngā āhuatanga o te whakakoi He tino rite ngā raruraru o te whakakoi i te karāpeti me te taimana polycrystalline ki ngā mea e pā ana ki te whakakoi uku. Ki te whakatauritea ki te konganuku, he uaua ki te whakamakuku i ngā rauemi karāpeti me te taimana polycrystalline te whakarewa, ā, he tino rerekē te tauwehenga o te whakawhānui wera i ērā o ngā rauemi hanganga whānui. Ka whakamahana tikahia ēnei e rua ki te hau, ā, ka puta te waikura, te waro rānei ina neke ake te pāmahana i te 400 ℃. Nō reira, me whakamahi te whakakoi korehau, ā, kaua te nekehanga korehau e iti iho i te 10-1pa. Nā te mea kāore i te teitei te kaha o ngā mea e rua, ki te mea he ahotea wera i te wā e whakakoi ana, ka puta pea ngā pakaru. Ngāna ki te whiriwhiri i te whakarewa whakakī he iti te tauwehenga o te whakawhānui wera, ā, kia tino whakahaere i te tere whakamatao. Nā te mea he uaua te whakamakuku i te mata o aua rauemi e ngā konganuku whakakī whakawera noa, ka taea te whakatakoto i tētahi paparanga W, Mo me ētahi atu huānga he 2.5 ~ 12.5um te matotoru ki runga i te mata o ngā rauemi polycrystalline me te taimana mā te whakarerekētanga mata (paninga korehau, pupuhi katote, rehu plasma me ētahi atu tikanga) i mua i te whakawera me te hanga i ngā carbide e rite ana ki a rātou, ka taea rānei te whakamahi i ngā konganuku whakakī whakawera kaha teitei.
He maha ngā momo o te karāpiti me te taimana, he rerekē te rahi o te matūriki, te mātotoru, te parakore me ētahi atu āhuatanga, ā, he rerekē hoki ngā āhuatanga whakakoi. Hei tāpiri, ki te neke atu te pāmahana o ngā rauemi taimana polycrystalline i te 1000 ℃, ka tīmata te heke o te ōwehenga kakahu polycrystalline, ā, ka heke te ōwehenga kakahu neke atu i te 50% ina neke atu te pāmahana i te 1200 ℃. Nō reira, i te wā e whakakoi ana i te taimana ki te korehau, me whakahaere te pāmahana whakakoi i raro i te 1200 ℃, ā, kaua te nekehanga korehau e iti iho i te 5 × 10-2Pa.
(2) Ko te whiriwhiri i te konganuku whakakī whakawera e ahu mai ana i te whakamahinga me te tukatuka mata. Mēnā he rauemi ātete-wera, me whiriwhiri te konganuku whakakī whakawera he teitei te pāmahana whakawera me te ātete wera pai; Mō ngā rauemi ātete-waikura matū, me whiriwhiri ngā konganuku whakakī whakawera he iti te pāmahana whakawera me te ātete-waikura pai. Mō te karāpiti i muri i te maimoatanga whakarewa mata, ka taea te whakamahi i te tūhono parahi parakore he teitei te ngāwari me te ātete-waikura pai. He pai te makuku me te rere o te tūhono hiriwa me te tūhono parahi ki te karāpiti me te taimana, engari he uaua ki te neke ake i te 400 ℃ te pāmahana ratonga o te hononga tūhono. Mō ngā wāhanga karāpiti me ngā taputapu taimana e whakamahia ana i waenga i te 400 ℃ me te 800 ℃, ko te turanga koura, te turanga palladium, te turanga manganese, te turanga titanium rānei te nuinga o te wā. Mō ngā hononga e whakamahia ana i waenga i te 800 ℃ me te 1000 ℃, me whakamahi ngā konganuku whakakī nikarapiti, ngā konganuku whakakī keri rānei. Mēnā kei runga ake i te 1000 ℃ te pāmahana o ngā wāhanga karāpeti, ka taea te whakamahi i ngā konganuku whakakī konganuku parakore (Ni, PD, Ti) ngā konganuku whakakī koranu rānei kei roto ko te molybdenum, Mo, Ta me ētahi atu huānga ka taea te hanga waro me te waro.
Mō te karāpeti, te taimana rānei, kāore he maimoatanga mata, ka taea te whakamahi i ngā konganuku whakakī hohe i te ripanga 16 mō te whakakanapa tika. Ko te nuinga o ēnei konganuku whakakī he koranu rua, he koranu toru rānei i ahu mai i te titanium. Ka kaha te tauhohe a te titanium parakore ki te karāpeti, ka taea te hanga i tētahi paparanga karāpeti matotoru rawa, ā, he rerekē rawa tōna tauwehenga whānui raina i tērā o te karāpeti, he ngāwari ki te hanga kapiti, nō reira kāore e taea te whakamahi hei tūhono. Mā te tāpiri o te Cr me te Ni ki te Ti ka taea te whakaiti i te ira rewa me te whakapai ake i te mākū ki ngā uku. He koranu toru te Ti, ko te nuinga he mea hanga mai i te Ti Zr, me te tāpiri o te TA, te Nb me ētahi atu huānga. He iti tōna tauwehenga whānui raina, ka taea te whakaiti i te ahotea whakakanapa. Ko te koranu toru he mea hanga mai i te Ti Cu he pai mō te whakakanapa i te karāpeti me te maitai, ā, he teitei te ātete waikura o te hononga.
Ripanga 16 te whakakī i ngā konganuku whakakī mō te whakakī tika o te karāpeti me te taimana
(3) Te tukanga whakakoi Ka taea te wehewehe i ngā tikanga whakakoi o te karāpeti kia rua ngā wāhanga, ko tētahi he whakakoi i muri i te whakarewatanga o te mata, ā, ko tētahi he whakakoi me te kore maimoatanga mata. Ahakoa te tikanga e whakamahia ana, me tukatuka mua te whakarewanga i mua i te huihuinga, ā, me horoi ngā poke mata o ngā rauemi karāpeti ki te waipiro, ki te acetone rānei. Mēnā he whakakoi mata, me pania he paparanga Ni, Cu, he paparanga Ti, Zr, molybdenum rānei ki runga i te mata karāpeti mā te rehu plasma, kātahi ka whakamahia te konganuku whakakī parahi, te konganuku whakakī hiriwa rānei hei whakakoi. Ko te whakakoi tika me te tūhono hohe te tikanga e whakamahia whānuitia ana i tēnei wā. Ka taea te whiriwhiri i te pāmahana whakakoi kia rite ki te tūhono kua whakaratohia i te ripanga 16. Ka taea te whakapiri i te tūhono ki waenganui o te hononga kua whakakoi, ki te taha rānei o tetahi pito. I te wā e whakakoi ana ki te konganuku he nui te tauwehenga o te whakawhānui wera, ka taea te whakamahi i te Mo, i te Ti rānei he matotoru hei paparanga ārai waenga. Ka taea e te paparanga whakawhiti te whakaputa i te āhua kirihou i te wā e whakawera ana te whakakoi, te mimiti i te ahotea wera me te karo i te pakaru o te karāpeti. Hei tauira, ka whakamahia te Mo hei hononga whakawhiti mō te whakakoi korehau o ngā wāhanga graphite me te hastelloyn. Ka whakamahia te tūhono B-pd60ni35cr5 me te ātete pai ki te waikura tote rewa me te irahiko. Ko te pāmahana whakakoi he 1260 ℃, ā, ka puritia te pāmahana mō te 10 meneti.
Ka taea te whakawera tika i te taimana tūturu ki te b-ag68.8cu16.7ti4.5, b-ag66cu26ti8 me ētahi atu mea whakarewa hohe. Me whakahaere te whakawera i raro i te korehau, i te parenga argon iti rānei. Kaua te pāmahana whakawera e neke ake i te 850 ℃, ā, me whiriwhiri he tere whakamahana tere ake. Kaua te wā pupuri i te pāmahana whakawera e roa rawa (tata ki te 10 hēkona) kia kore ai e hanga he paparanga tic tonu i te atanga. I te wā e whakawera ana i te taimana me te maitai koranu, me tāpiri he paparanga kirihou, he paparanga koranu whānui iti rānei hei whakawhiti hei ārai i te kino o ngā kirikiri taimana i puta mai i te ahotea wera nui. Ko te taputapu hurihuri, te taputapu poka rānei mō te miihini tino tika ka hangaia mā te tukanga whakawera, e whakawera ana i te 20 ~ 100mg taimana matūriki iti ki runga i te tinana maitai, ā, ka eke te kaha hononga o te hononga whakawera ki te 200 ~ 250mpa.
Ka taea te whakawera i te taimana polycrystalline mā te mura, te auau teitei, te korehau rānei. Me whakamahi te whakawera auau teitei, te whakawera mura rānei mō te mata kani porowhita taimana e tapahi ana i te konganuku, i te kōhatu rānei. Me whiriwhiri te konganuku whakakī whakawera hohe Ag Cu Ti me te ira rewa iti. Me whakahaere te pāmahana whakawera i raro i te 850 ℃, kaua e roa rawa te wā whakamahana, ā, me whakamahi i te tere whakamatao puhoi. He kino ngā āhuatanga mahi o ngā moka taimana polycrystalline e whakamahia ana i roto i te keri hinu me te keri whenua, ā, he nui ngā kawenga pānga. Ka taea te whiriwhiri i te konganuku whakakī whakawera nikara, ā, ka taea te whakamahi i te pepa parahi parakore hei paparanga mō te whakawera korehau. Hei tauira, ka whakawerahia te taimana polycrystalline pou 350 ~ 400 kāpūru Ф 4.5 ~ 4.5mm ki roto i ngā kōhao o te maitai 35CrMo, 40CrNiMo rānei hei hanga niho tapahi. Ka whakamahia te whakakoi korehau, ā, ko te tohu korehau kāore i raro iho i te 5 × 10-2Pa, ko te pāmahana whakakoi he 1020 ± 5 ℃, ko te wā pupuri he 20 ± 2min, ā, ko te kaha kutikuti o te hononga whakakoi he nui ake i te 200mpa.
I te wā e whakapūmau ana, me whakamahi te taumaha o te mea whakarewa mō te huihuinga me te whakanoho kia rite ki te taumaha e taea ana kia pēhia ai te wāhanga whakarewa ki te rauemi karāti, ki te rauemi kiripaka rānei i te taha o runga. Mēnā e whakamahia ana te taputapu mō te whakanoho, me rite te tauwehenga whānui wera o te rauemi taputapu ki tērā o te mea whakarewa.
Wā tuku: Pipiri-13-2022