Kirihou Whakakaha Karāhe (FRP/GFRP)
* Ngā hua muka karāhe kua whakaritea, kua tākaihia, kua tukuna kia rite ki ngā whakaritenga whakaritenga!
* Ko te FRP, e mōhiotia ana ko te muka whakarewa kirihou (FRP), he rauemi hiato i hangaia mai i ngā muka karāhe me te kapia. He tino pai ōna āhuatanga miihini me te ātete ki te waikura, ā, he whānuitia te whakamahinga i roto i ngā kaipuke, ngā motuka, te hanga, te ahumahi matū, te hiko me ētahi atu mara.
* Ngā hua kirihou FRP kua whakaritea, ngā wāhanga rānei
He momo rauemi hiato te FRP, he mea hanga ki te muka karāhe me ōna hua pēnei i te kakahu karāhe, te rīpene, te huruhuru hipi me te miro hei rauemi whakapakari, me te kapia hangai hei rauemi matrix. Nā te mea he rite tōna kaha ki te maitai, ā, kei roto ngā wāhanga karāhe, he rite anō hoki tōna tae, tōna āhua, tōna ātete ki te waikura, tōna ātete hiko, tōna ātete wera me ētahi atu āhuatanga o te karāhe, nō reira e kiia ana ko te "kirihou whakapakari muka karāhe".
E mōhiotia ana te FRP mō tōna ōwehenga kaha-ki-taumaha teitei, tōna ātete ki te waikura, me tōna roa, ā, e whakamahia ana i roto i ngā momo tono maha pērā i te ahumahi motuka, rererangi, hanga, me te moana, tae atu ki te ao o ngā taputapu whakapaipai.
He aha ngā painga o te FRP i runga i ētahi atu kirihou?
Mā te tāpiri muka ki ngā muka karāhe ka whakaiti i te taumaha, ka whakanui ake i te ngāwari me te kaha ā-ringa. Nō reira, ka taea te whakamahi i ēnei rauemi hei hanga i ngā wāhanga e hiahia ana ki te hoahoa tika, ki ngā rohe manawanui kua whakaritea, ki te iti o te ngenge, ki te ātete pānga teitei, me ngā āhuatanga pēhanga pai. Ka taea e rātou te whakahaere ngāwari i te hoahoa wāhanga, me te whakapai ake i te whai huatanga o te whakaputa me te whakahaere. He pai hoki ngā āhuatanga whakamarumaru wera me te oro o ngā FRP, ā, ka taea te tu atu ki te whakaeke matū waikura, te pānga o te ngaru, ngā taiao makuku me ngā awha/tupu.
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Te tukanga hanga muka karāhe
E ai ki ngā āhuatanga o te rauemi FRP, ko ngā tukanga hanga matua e whakamahia whānuitia ana ko te whakakoi takai, te whakakoi whakahāngai, te whakakoi pēhanga, me te whakakoi ā-ringa.
He aha ngā āhuatanga o te FRP?
* Tuatahi, he māmā te taumaha, he kaha teitei: ko te matotoru whanaunga o te FRP kei waenga i te 1.5~2.0, ko te 1/4~1/5 noa iho o te maitai waro, engari ko te kaha kume e tata ana, e nui ake ana rānei i te kaha kume o te maitai waro. Ko ētahi kaha kume, kaha takaro me te kaha pēhi o te FRP epoxy ka eke ki te neke atu i te 400Mpa.
* Tuarua, he pai ngā āhuatanga hiko: He rauemi ārai pai te FRP, e whakamahia ana hei hanga ārai, ka taea tonu e te auau teitei te tiaki i ngā āhuatanga dielectric pai.
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Tuatoru, he pai te mahi wera: He iti te kawe wera o te FRP, ko te 1/100 ~ 1/1000 noa iho o te konganuku, he rauemi whakamahana wera pai rawa atu.
Tuawhā, he pai te hoahoa: kia rite ki te hiahia ki te hoahoa ngāwari i ngā momo hua hanganga kia tutuki ai ngā whakaritenga o te whakamahinga, ka taea te hanga kia pai te pono o te hua. Ka taea hoki te whiriwhiri katoa i te rauemi kia tutuki ai te mahi a te hua.
Tuarima, he mahi tino pai: e ai ki te āhua o te hua, ngā whakaritenga hangarau, te whakamahinga me te maha o ngā whiringa ngāwari o te tukanga whakarewa. He māmā te tukanga, ka taea te whakarewa i te wā kotahi, he tino pai te pānga ōhanga, inā koa mō te āhua uaua, ehara i te mea ngāwari ki te hanga i te iti o ngā hua, he nui ake te hiranga o te tukanga.
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