Ko te nuinga o te mīhini keri porowhita he anga porowhita, he pane poutū, he whāriki, he taputapu tuku me te paipa hono. Ko te anga mīhini keri he oko pēhanga porowhita angiangi me ngā pereti maitai kōhua kua whakapirihia. Ko te kaha o te hanganga whakapiri ka whakaiti i te taumaha katoa o ngā taputapu, ki te whakaritea ki te hanganga whakapūmau ka taea te whakaiti i te 20% o ngā pereti maitai, i tēnei wā ko ngā mīhini keri porowhita katoa e whakamahi ana i te hanganga pupuri. Ko te pēhanga mahi mōrahi i hangaia mō te mīhini keri porowhita ko 7.85 × 105Pa, i roto i te tukanga tunu whanariki, ko te whakaaetanga waikura o te mīhini keri porowhita ka taea te 5 ~ 7mm. Ka whakatuwheratia he kōhao porowhita rahi 600 x 900mm i te rārangi pokapū poutū o te anga porowhita mō te uta rauemi, te tuku wai me te tiaki. Hei whakarite i te haumaru o te mīhini keri porowhita, ka whakamahia he porowhita o ngā pereti maitai whakapakari huri noa i te whakatuwheratanga porowhita. Kei te pupuri uta he taupoki pōro, i muri i te uta rauemi ka herea ki te pūtu mai i roto. Mō ngā rauemi mata muka roa, ko te whakatuwheratanga uta ko te whakatuwheratanga tukunga. Kei roto te anga porowhita he ngongo maha-porous hei whakanui ake i te rohe tohatoha mamaoa, e whakarite ana i te tunu ōrite o ngā rauemi mata. Hei whakaiti i te waku i waenga i te paru me te pakitara o roto, ka honoa te porowhita ki ngā pane rakau rino e rua kua whakarewahia mā roto i te flange, ā, ka tautokona ki runga i te peera mowhiti hinu tuwhera-haurua, e mau ana ki te tūnga raima. Ka honoa tetahi pito o te pane rakau ki te paipa whakauru mamaoa, ā, ka honoa tetahi pito o te pane rakau ki te paipa tuku, kei te paipa he takirere kati, he ine pehanga, he takirere haumaru me te takirere aukati. Hei ārai i te ngaronga wera i te wā tunu kai, ka hipokina te pakitara o waho o te mīhini keri porowhita ki te paparanga whakamarumaru matotoru 50-60mm.
Ngā painga o te mīhini keri porowhita: ka taea te whakaranu i ngā rauemi mata me te kaihoko tunu kai, he ōrite ake te kukū me te pāmahana o te kaihoko wai, he iti te ōwehenga wai, he teitei te kukū o te kaihoko wai, he poto te wā tunu kai, ā, he iti ake te horahanga mata i te kohua tunu kai poutū me te kaha ōrite, ka penapena i te maitai, he iti te rahinga, he māmā te hanganga, he ngāwari te whakahaere, he iti ngā utu tāutanga me te tiaki, me ētahi atu.
Wā tuku: Pipiri-14-2022