Te hanganga o ngā pounamu PET
Ngā pounamu PEThe ipu kirihou i hangaia mai i te rauemi kirihou PET mā te tukatuka kotahi-taahiraa, e rua-taahiraa rānei. Ko te kirihou PET o Ngā pounamu PEThe māmā, he mārama rawa, he ātete hoki ki te pānga me te pakaru.
PET o lwhakaaro bota, ko te polyethylene terephthalate rānei, e mōhiotia whānuitia ana ko te polyester. Ko tōna ingoa Pākehā ko Polyethylene Terephthalate, ka puta mai i te tauhohenga polymerization (condensation) o ngā rauemi matū e rua: te waikawa terephthalic (PTA) me te ethylene glycol (EG).
Ngā Āhua o Ngā pounamu PEThe mea hanga ki te werohanga. Hei hua haurua-oti mō te hanga pupuhi totoro rua-axial i muri mai, kua oti kē te hanga o te kaki o te tauira i te wā o te hanga werohanga, ā, e kore tōna rahi e rerekē i te wā e whakamahana ana, e totoro ana/e pupuhi ana. Ko te rahi, te taumaha, me te matotoru o te pakitara o te tauira he mea nui kia aro nui tātou ki te pupuhi. Ngā pounamu PET.
Ngā diameter o lwhakaaro bota Ko ngā waha e taea te puta ko te Ф18, Ф20, Ф22, Ф24, Ф28, Ф33, me ētahi atu (e rite ana ki te rahinga T o te waha pounamu), ā, ko ngā whakatakotoranga miro tīwiri e wehea ana kia rite ki: 400, 410, 415 (e rite ana ki te maha o ngā hurihanga miro tīwiri). Ko te tikanga, ka kīia ko te 400 he hurihanga kotahi o te miro tīwiri, ko te 410 he hurihanga 1.5 o te miro tīwiri, ā, ko te 415 he tūranga teitei me te 2 hurihanga o te miro tīwiri.
Me pēhea Ngā pounamu PETka hangaia:
Ko te tukanga e whakaoti ana i ngā tikanga werohanga, totoro me te pupuhi i roto i te mīhini kotahi e kiia ana ko te tikanga kotahi-taahiraa. I roto i te tikanga kotahi-taahiraa, i muri i te werohanga me te whakamatao i te preform, ka tīmata te totoro me te pupuhi. lwhakaaro bota ka mahia he mahi. Ko ōna painga matua ko te penapena pūngao, te hua nui, te kore wawaotanga ā-ringa, me te whakaiti i te parahanga.
Mā te tikanga e rua ngā taahiraa e wehe te werohanga me te totoro me te pupuhilwhakaaro bota, ā, ka mahia i roto i ngā mīhini e rua i ngā wā rerekē, e mōhiotia ana ko te werohanga-toro-pupuhi lwhakaaro bota tukanga. I te taahiraa tuatahi, ka werohia te preform mā te whakamahi i te mīhini werohanga. I te taahiraa tuarua, ka whakamahanahia anō te preform i te pāmahana rūma ka totorohia ka pupuhihia ki roto Ngā pounamu PETKo ngā painga o te tikanga e rua-taahiraa ko te taea te hoko i ngā tauira hanga mō te whakakoi pupuhi. Ka taea te whakaiti i te haumitanga (ki ngā kaimahi me ngā taputapu). He iti ake te rahinga o te tauira hanga i tō te pounamu, he mea watea mō te kawe me te rokiroki. Ka taea te pupuhi i ngā tauira hanga i te wā kore mahi. Ngā pounamu PETi te wā tino nui.
Ngā pounamu PETe whakamahia whānuitia ana i roto i te umanga whakapaipai, ko te nuinga i roto i ngā rāngai tiaki makawe me te tiaki tinana. Ko ngā pounamu mō te hopi horoi, te horoi tinana, te toner, me te hinu tango whakapaipai ka hangaia katoa mā te whakamahi i te whakakoi pupuhi.