He aha ngā āhuatanga e pā ana ki te whakarerekētanga o ngā whakakī kirihou?

I te nuinga o te wā, ko te āhua o te whakakī, te rahi o te matūriki, te hanganga o te mata, te maimoatanga mata, te tohatoha o te whakakī, ngā āhuatanga tukanga me ngā taputapu he pānga ki te pānga whakarerekētanga o ngā kirihou kua whakakīia.

1. Te āhua o te whakakī

Ka taea te whakarōpū whānui i te āhua o te whakakī ki ngā porowhita, ngā kirikiri, ngā pou, ngā kongakonga, ngā muka me ngā porowhita tuwhera. He kaha te awe o te āhua o te whakakī ki te pānga o te whakarerekētanga o te whakakī. Haunga ngā porowhita me ngā porowhita tuwhera, ko ngā āhua katoa o ngā whakakī he anisotropy, ā, ko te nui ake o te ōwehenga āhua o ēnei whakakī anisotropic, ko te pai ake o ngā āhuatanga ā-pūkaha me te wera.

I te nuinga o te wā, he pai ngā whakakī he nui ngā ōwehenga āhua, pērā i te muka, te pou me te konganuku, hei whakapai ake i te kaha ā-pūkaha o ngā rauemi hiato, nō reira i ētahi wā ka kiia he ākena whakapakari, engari ka pā pea ēnei whakakī ki ngā āhuatanga hanga me te tukatuka o ngā rauemi kua whakarerekētia; ka taea e ngā whakakī he iti ngā ōwehenga āhua, pērā i te porowhita me te kirikiri, te whakapai ake i ngā āhuatanga hanga me te tukatuka, engari ka taea te whakaiti i te kaha ā-pūkaha o ngā rauemi.

Mā te whakamahi i te whakakī maha-wāhanga ka taea te whakakore i ngā ngoikoretanga o runga ake nei, pērā i te tāpiri i te paura mika maramara ki te kapia PVC, ka piki ake te pakari i te mea kua heke te kaha pānga, kātahi ka tāpirihia te CaCO3 i raro i te 1μm te whakakaha, ka taea te ārai i te hekenga o te kaha pānga. Mēnā ka whakamahia te whakakī paura me te whakakī muka, ka taea te taurite i ngā āhuatanga hangarau o ngā hua kua whakarerekētia, ka taea te taurite i te muka karāhe me te whakakī paura kohuke kore-waro, te muka waro me te konumohe hauwai, me ētahi atu, ka taea te taurite i te mahi a ngā rauemi kua whakarerekētia.

Tāpirihia te 15% ki te 20% EPDM me te 15% ki te 25% CaCO3 ki te PP, he tino kaha te pānga o te rauemi, ā, he iti te ātete ki te pāmahana, ka taea te whakamahi i roto i te hanga i ngā wāhanga nui o te motuka.

Mā te tāpiri i te 25% ki te 35% muka asbestos me te 15% ki te 35% CaCO3 ki te kapia PVC, ka taea te whakamahi i te rauemi hei hanga taera papa asbestos kirihou.

2. Te rahi o te matūriki o te whakakī

Ka taea te whakaatu i te rahi o te matūriki o te whakakī mā te rahi tuturu (μm) mā te maha rānei o ngā mata o te tātari e tika ana kia puta. Ko te maha o ngā mata e pā ana ki te maha o ngā kōhao mō ia inihi tapawha o te mata tātari, arā, 200 mēnā he 200 te maha o ngā kōhao. Ko te whanaungatanga i waenga i te mata me te maikorona (μm) koia tēnei: ​​Te whānui o te tātari = 15400 μm/ mata o te tātari.

He nui te pānga o te rahi o te matūriki o te whakakī ki te mahi a te rauemi kua whakakīia. I te nuinga o te wā, i roto i tētahi whānuitanga horopeta, ko te iti ake o te rahi o te matūriki o te whakakī, ko te nui ake o te horahanga mata motuhake, ko te nui ake o te mimiti o ngā ngota polymer ki te whakakī (nā te nui o te horahanga whakapā), ko te kaha ake o te here o te kapia ki te atanga whakakī, ā, ko te nui ake o te whakapainga o te pakari, te kaha kume, te kaha pānga, te pumau o te taha me te āhua o te rauemi.

Ina koa mō te kaha kume me te kaha pānga, ina nui ake te rahi o te matūriki o te whakakī, ka hinga ngā mea e rua; ina iti te rahi o te matūriki ki tētahi uara, ka piki ake ngā mea e rua, engari me te pikinga o te nui o te whakakī ki tētahi uara rohe, arā, ka tīmata te heke; ko te rahi o te uara rohe, arā, ko te nui o te whakakī me te rahi o te matūriki teitei rawa, ko te nui ake o te rahi o te matūriki, ko te teitei ake o te uara rohe.

Ko te iti o te rahi o te matūriki o te whakakī, ki te taea te horapa ōrite, ka pai ake ngā āhuatanga ā-pūkaha o te rauemi whakakī; engari ko te iti o te rahi o te matūriki, ka uaua ake te whakatutuki i tōna horapa ōrite, me te hiahia kia nui ake ngā tāpiringa me ngā taputapu tukatuka pai ake, ā, ko te pai ake o te matūriki ka nui ake ngā utu tukatuka e hiahiatia ana, nō reira me whiriwhiri e tātou te whakakī rahi matūriki e tika ana kia rite ki ngā hiahia o te whakamahinga.

E whakaatu ana te Ripanga 2-10 i ngā āhuatanga ā-pūkaha o te rauemi me ngā rahi matūriki rerekē o te konupūmā kāponāte, i raro i te tukanga whakapūkara kotahi, i roto i te taumata kotahi o te HDPE kua whakakīia ki te 25% (wāhanga papatipu) konupūmā kāponāte.

Mai i ngā raraunga motuhake i te Ripanga 2-10, ka kitea ko te paikāponate 1250 mata te hua pai rawa atu, ā, muri iho ko te 800 mata. Mō te ōwehenga mahi rauemi ki te utu, he tika te whakamahi i te paikāponate 800 ki te 1250 mata.

Ki te tete hanga kiriata kirihou, kaua te rahi o te matūriki konupūmā kāponāte e neke atu i te 1250 mata, ehara i te mea ko ngā āhuatanga ā-pūkaha o te kiriata anake ka pā ki ngā matūriki nunui, engari ka uaua anō hoki te kiriata pupuhi. Mō ngā whakakī tino pai, pērā i ngā rauemi nano, ka taea e te rahi o te matūriki te tata ki te 10nm. He huarahi tino whai hua ngā whakakī tino pai ki te whakarerekē i ngā rauemi, ka taea te whakapai ake i te pakari me te pakari o te rauemi. Ka pā te tohatoha rahi o te matūriki o te whakakī ki tōna tohatoha i roto i te pūnaha whakakī. Ina whānui te tohatoha rahi o te matūriki, kāore e tohatoha ōrite i roto i te pūnaha whakakī, ā, ka pā ki te mahi a te pūnaha whakakī.