[Whakaahuatanga whānui] He kirihou te polyethylene, e mōhiotia ana mō tōna ōwehenga kiato teitei, tōna ngāwari me tōna pumau matū. He mea tino pai mō ngā tono paipa pēhanga me ngā tono kore-pēhanga. Ko ngā paipa HDPE he mea hanga ki te kapia polyethylene 100, me te kiato o te 930-970 kg/m3, tata ki te 7 ngā wā o te maitai.

He kirihou te polyethylene, e mōhiotia ana mō tōna ōwehenga kiato teitei, te ngāwari me te pumau matū. He mea tino pai mō ngā tono paipa pēhanga me ngā tono kore-pēhanga. Ko ngā paipa HDPE he mea hanga ki te kapia polyethylene 100, me te kiato o te 930-970 kg/m3, tata ki te 7 ngā wā i te maitai. He māmā ake te kawe me te tāuta i ngā paipa mama ake. Kāore te polyethylene e pāngia e te tukanga waikura hikohiko, ā, he mea noa te pāngia o ngā paipa e te tote, te waikawa me te kawakore. Kāore te mata maeneene o te ngongo polyethylene e waikura, ā, he iti te waku, nō reira kāore te ngongo kirihou e pāngia ngāwari e te tipu o ngā moroiti. Nā te kaha ki te ātete i te kino o te waikura me te rere tonu ka tino iti te whakaritenga tiaki o ngā paipa HDPe. Ka taea te hanga i ngā paipa polyethylene ki te kapia whakapakaritia, e kiia ana ko te PE100-RC, me te tāpiri hei whakaroa i te tipu o ngā kapiti. Ka roa te ora o ngā paipa e hangaia ana, ā, he painga ōhanga tō te polyethylene i roto i te huringa ora o te kaupapa.

Nā te mea kua whakatauhia te pakari o ngā paipa HDPe, he mea tino nui te penapena ina whakamahia ngā paipa polyethylene ki ngā hanganga tiaki wai. Ki te whakatauritea ki ngā paipa rino ngāwari, ko te painga tino kitea o ngā paipa polyethylene ko te ārai i te turuturu. E rua ngā momo turuturu o ngā paipa: te turuturu hononga, te turuturu pakū me te turuturu poka, he ngāwari ki te whakahaere.

Te rahi oPaipa HDPEkei waenganui i te 1600 mm me te 3260 mm, ā, ka taea te whakamahi i ngā paipa nunui kei te mākete i tēnei wā. Haunga ngā pūnaha tuku wai ā-tāone, ka taea hoki te whakamahi i ngā paipa kirihou whānui-diameter i hangaia ki te polyethylene i roto i ngā whare tango tote wai moana me ngā whare maimoatanga wai para. Ko ngā paipa whānui-diameter ka taea te whakamahi mai i te 315 cm ki te 1200 cm. Ko te whānui-diameter nuiPaipa HDPeHe tino pakari, he pono hoki. I muri i te tanumanga ki te whenua, ka taea te mahi mō ngā tekau tau, ā, he iti noa te tiaki e hiahiatia ana, nō reira he tino pai mō ngā mahi maimoatanga wai para. Ka piki ake te pakari o te paipa polyethylene i te pikinga o tōna rahi, e whakaatu ana i te mahi ātete-wiri whakamiharo. Hei tauira, ko te rū whenua o Kobe i Hapani i te tau 1995, ko ngā hanganga tāone; ka pakaru ngā paipa katoa i te iti rawa i te kotahi i ia 3 km, ā, kāore he pakaru o te pūnaha paipa HDPE katoa.

Ngā painga o ngā paipa HDPE: 1. He pai te pumau matū: Kāore he polarity o te HDPE, he pai te pumau matū, kāore e whakatupu rimurimu me ngā huakita, kāore e tauine, ā, he hua pai mō te taiao. 2. He pai te kaha o te hononga: whakamahia te hononga hiko honohono, te hononga wera honohono rānei, he iti noa ngā hononga, ā, kāore he turuturu. 3. He iti te ātete ki te rere o te wai: Ko te mata o roto oPaipa HDPeHe maeneene, he iti te ātete ki te kakahu, ā, he nui te rere. 4. He pai te ātete ki te pāmahana iti me te pakarukaru: ko te pāmahana pakarukaru he (-40), ā, kāore e hiahiatia he tikanga tiaki motuhake mō te hanganga pāmahana iti. 5. He pai te ātete ki te pakū: E whakaatu ana te whakamātautau whakatairite i te ātete ki te pakū o ngā paipa polyethylene me ngā paipa maitai he 4 ngā wā te ātete ki te pakū o ngā paipa polyethylene i ngā paipa maitai. 6. He ārai-pakeketanga me te roa o te ora mahi: Ka taea te penapena, te whakamahi rānei i ngā paipa HDPE ki waho mō te 50 tau me te kore e pakaru i te hihi ultraviolet.