ngā hua

Te mahi whakawhiwhinga: whakaitihia te utu, ngāwari ki te whakakanapa, ngāwari ki te tukatuka, whakaitihia te whakahekenga, whakaitihia te taumaha; whakapai ake i te pumau; kaha teitei, iti te kawe wera; mama, whakanui ake i te pumau, ātete ki te waikura.
Ko te mātotoru tūturu o ngā porowhita iti karāhe tuwhera mahi-teitei kei te awhe o te 0.14~0.63g/cm³, ko te kaha pēhi kei te awhe o te 2.07Mpa/300psi~82.75Mpa/12000psi, ko te rahi o te matūriki kei te awhe o te 15~125μm, ā, ko te kawe wera kei te awhe o te 0.05~0.11w/m·k. E kore e taea e te kamupene te whakarato noa i ngā hua porowhita iti paerewa ki ngā kiritaki, engari ka taea hoki e rātou te whakarato i ngā hua porowhita iti motuhake kua whakaritea mō ngā kiritaki.

He momo rauemi hou ngā porowhita karāhe tuwhera, he whānui te whakamahinga, ā, he tino pai te mahi i whakawhanakehia i ngā tau tata nei. He paura porowhita iti, tuwhera. Ko te wāhanga matua o te hua he borosilicate. Ko te rahi o te matūriki he 10μm～300μm, ā, ko te mātotoru he 0.1～0.7g/ml. He māmā, he nui te rōrahi, he iti te kawe wera, he kaha pēhi teitei, he pai te marara, he pai te rere me te pumau. Hei tāpiri, he pai anō hoki ōna āhuatanga pēnei i te whakamarumaru, te whakahinuhinu-ā-roto, te whakamarumaru oro, te kore mimiti wai, te ātete ahi, te ātete waikura, te tiaki i te hihi, me te kore paitini.

He whānuitia te whakamahinga o ngā porowhita karāhe tuwhera i roto i ngā rauemi hiato pēnei i te kirihou hangarau, ngā rauemi ārai-waikura, te rapa, ngā rauemi pūmau, te kirihou whakakaha muka karāhe, te māpere horihori, te ākete horihori, ngā whakakapinga rakau, me ētahi atu, tae atu ki te umanga hinu, te rererangi, te whakawhitiwhiti kōrero 5g, ngā tereina tere hou, ngā motuka, me ētahi atu. Tae atu ki ngā kaipuke, ngā paninga ārai-wera, ngā piripiri me ētahi atu mara, ka hoatu he mahi hou ki ngā rauemi!