A pūmau ngongoHe taputapu whakamau miihini e whakamahia ana hei tāpiri me te hiri i te ngongo ki runga i tētahi hononga pēnei i te taura, i te nipple rānei. Ka ārai i te turuturu wai, i te turuturu hau rānei mā te whakamahi i te pēhanga radial ōrite huri noa i te porowhita o te ngongo. Kei roto i ngā pūnaha whakamatao motuka, i ngā waipēhi ahumahi, i te whakamakuku ahuwhenua, i ngā putorino, me ngā taputapu whare ngā rawhi ngongo. Ahakoa te āhua māmā, ka pā tika te kōwhiringa rawhi tika ki te pono o te pūnaha me ngā wā tiaki.
Ngā Momo Noa o ngā Herenga Ngongo
1. Ngā Āpiti Taputapu Noke
Ko ngā rawhi taputapu noke he mea hanga ki te whitiki poka me te whare me te tikanga tīwiri. Mā te whakakī i te tīwiri ka kumea te whitiki mā roto i te whare, ka whakaitihia tōna whānui. He whānui te whakamahinga o ēnei rawhi nā te mea ka taea te whakarite, te whakamahi anō, ā, e wātea ana i roto i te whānuitanga rahi (te nuinga o te 6–200 mm). Heoi, ka ngaro pea te kaha o te rawhi i raro i te huringa pāmahana tino nui nā te rerekētanga o te whakawhānui wera i waenga i te ngongo rapa me te whitiki whakarewa. Mō ngā tono wiri nui, e taunakihia ana he rawhi taputapu noke kua whakarārangihia me te ringaringa tiaki o roto hei karo i te tapahi i roto i te ngongo.
2. Ngā Āpiti Puna
He mea hanga ngā rawhi puna mai i te maitai puna, ā, he taputapu pūmau te taumahatanga. Ka whakarerekē aunoa ēnei ki ngā huringa o te diameter o ngā ngongo e puta mai ana i ngā rerekētanga pāmahana, pēhanga rānei. He mea noa ngā rawhi puna i roto i ngā pūnaha whakamatao miihini, ka whānui haere, ka whakawhāiti haere ngā ngongo. Me whakamahi ngā pliers mō te tāutanga; ko te tangohanga he mea whakawhirinaki ki te taputapu. Kāore e taea te whakamahi anō i te nuinga o te wā nā te mea ka heke te kaha o te puna i muri i te kotahi, i te rua rānei o ngā huringa.
3. Ngā Here Waea
He mea hanga mai i te porowhita kotahi tonu o te waea puna, he mama, he iti hoki te utu o ngā rawhi waea. He iti te kaha o te rawhi, ā, he pai mō ngā tono pēhanga iti pērā i ngā raina korehau, i ngā ngongo waikeri rānei. Kāore e taea te whakarite i ngā rawhi waea ina oti te tāuta, ā, e kiia ana he otinga whakapiri kotahi.
4. Ngā Here Taringa
Ngā rawhi taringahe whitiki kei roto he "taringa" e ara ake ana, kotahi, e rua rānei, ka whakapōturitia tonutia mā te whakamahi i te taputapu whakakoi. Ka hangaia e te whakapōturi he kaha whakakī pumau, ātete-whakarerekē. He whānuitia te whakamahinga o ēnei whakakī i roto i ngā raina wahie me ngā pūnaha parai i ngā wāhi e tūpono ai te haumaru o ngā turuturu. Nā te mea he kotahi noa te whakamahinga o ngā whakakī taringa, ka whakarite kia rite te pēhanga mai i te huihuinga taketake.
5. Ngā Āpiti Pūmau-Taumaha (CT)
Kei roto i ngā rawhi kume-pūmau he sphe mowhiti, he whitiki motuhake rānei e pupuri ana i te kaha piri tata tonu i runga i te whānuitanga o te pāmahana (–40 °C ki te 150 °C). He pai ake ēnei mō ngā paipa hau turbocharger, ngā pūnaha whakahoki hau putanga (EGR), me ētahi atu taiao wera nui. He nui ake te utu o ngā piri CT i ngā piri taputapu kutukutu paerewa engari ka whakaitihia ngā karangatanga ratonga i roto i ngā huringa wera nui.
Kōwhiringa Rauemi
Kowiri tira (raupapa 300, hei tauira, 304, 316 rānei) – He ātete ki te waikura. Ko te momo 316 e taunakitia ana mō ngā taiao moana, mō ngā wāhi rānei e pāngia ana e ngā pūhaumāota.
He maitai waro piauau – He iti ake te utu engari he ngāwari ki te waikura ina whakamahia ki waho, ki ngā āhuatanga makuku rānei. He pai mō ngā mahi maroke o roto.
Rino whakakikoruatia ki te konutea – He ārai waikura ngawari; he maha ngā wā ka tohua mō ngā huihuinga o raro i te taupoki o te motuka ina kore e neke ake te pāmahana i te 120 °C.
Ngā rawhi polyamide (nailona) – Kāore e kawe hiko, ā, kāore hoki e waikura, engari he iti noa te whakamahi mō ngā tono pēhanga iti, pāmahana iti (i raro iho i te 85 °C).
Ngā Take Kōwhiringa Matua
Te whānui o waho o te ngongo (OD) me te matotoru o te pakitara – Me ōrite te whānuitanga iti rawa me te whānui mōrahi o te rawhi ki te whānui o te ngongo i muri i te pēhitanga. E kore e ranea te kaha porowhita o te rawhi nui rawa, ka puta he turuturu.
Awhe pāmahana whakahaere – Ka mahi pono ngā rawhi taputapu noke paerewa mai i te –30 °C ki te +100 °C. Mō ngā pāmahana teitei ake, whakamahia ngā rawhi taringa pūmau, ngā rawhi taringa kowiri tira rānei. I raro i te –30 °C, kia kore te mīhini tīwiri e whakapataritari (whakamahia he hinu ārai-hopu, he kowiri tira 316 rānei).
Te whakatauranga pēhanga – Mō ngā pūnaha neke atu i te 5 pae (hei tauira, ngā aho whakahoki waipēhi), e taunakihia ana he rawhi taputapu kutukutu whānui (12 mm, whānui ake rānei) he rawhi taringa-rua rānei. Ka taea e ngā aho hau me te wai pēhanga iti te whakamahi i ngā aho whaiti.
Taipana Tāutanga – Ko te whakakīkī rawa i ngā rawhi taputapu noke he momo rahunga noa iho. Me pēhi te whitiki i te ngongo kia paku piko te mata o te ngongo engari kaua e tapahia ki roto i te rapa. Mēnā kei te wātea he tīwiri whakawhāiti taipana, ko te taipana e taunakitia ana mō te rawhi kowiri tira 9 mm te whānui i runga i te ngongo rapa 25 mm ko te 2.5–3.5 N·m.
Ngā Tauira Taupānga
Ngā ngongo whakamatao o ngā waka – Ngā rawhi puna, ngā rawhi kume-pūmau rānei.
Ngā aho hau kōpeke ahumahi – Ngā rawhi taputapu kutukutu whakakikoruatia ki te konutea (he maha ngā wā ka tohua he rawhi taringa mō te huihuinga ātete-whakarerekē i roto i ngā hononga hau kāore e taea te whakamahi anō).
Taputapu tukatuka kai – Ngā rawhi taputapu noke maeneene, kāore he pūwero i te mata o roto (hei ārai i te mahanga huakita).
Ngā raina wahie moana – he 316 ngā here taringa he kowiri tira, nā te mea ka tere te waikura o ngā here taringa paerewa i roto i te wai tote.
Ngā Hapa Noa hei Ārai
Mā te whakamahi i tētahi rawhi he whaiti ake te whānui o te whitiki i te koikoi taumau – ka kukū te ahotea, ā, ka pakaru pea te ngongo.
Mā te whakamahi anō i te rawhi puna kua tino whakangāwaritia – ka whakaitihia te kawenga o mua, ka iti ake te rawhi.
Te tāuta i ngā rawhi taputapu noke ki runga tonu i te hononga ngongo, i te hononga rānei – ka ārai te āputa i raro i te hononga i te pēhanga ōrite.
Ngā rauemi whakaranu (hei tauira, he rawhi whakakikoruatia ki te konutea i runga i te hononga parahi) – ka puta te waikura konukōre i ngā taiao makuku.
Whakamutunga
Ko te whiriwhiri i te rawhi ngongo tika me arotake te pēhanga whakahaere, te awhe pāmahana, ngā mōrearea waikura taiao, me te tikanga huihuinga (ka taea te whakamahi anō, ka taea te tuturu rānei). Kāore he momo rawhi kotahi e pai ana mō ngā tono katoa. Ka taea te whakarerekē i ngā mahi whānui mā ngā rawhi taputapu kutukutu paerewa, ko ngā rawhi puna me te kukū-pūmau e aro ana ki te huringa wera, ā, ka whakaratohia e ngā rawhi taringa he hiri pono, ātete-whakarerekē mō ngā raina haumaru-nui. Mā te whakataurite i te hoahoa me te rauemi o te rawhi ki ngā tikanga ratonga motuhake, ka taea e ngā miihini me ngā tohunga tiaki te whakaiti i ngā aituā turuturu me te whakaroa i te roa o te ratonga ngongo.
Wā tuku: Pipiri-10-2026
