He rauemi tākai watea, he rauemi ohanga hoki te ngongo, ā, he mea whakamahi whānuitia i roto i te ao o ngā matū o ia rā, ā, he tino rongonui. Ehara i te mea ka taea e te ngongo pai te tiaki i ngā ihirangi anake, engari ka whakapai ake hoki i te taumata hua, ā, ka nui ake ngā kaihoko e whiwhi ana i ngā kamupene matū o ia rā. Nō reira, mō ngā kamupene matū o ia rā, me pēhea te whiriwhiringā ngongo kirihou kounga teiteie tika ana mō ā rātou hua?
Ko te whiriwhiri me te kounga o ngā rauemi te mea nui hei whakarite i te kounga o ngā ngongo, ka pā tika ki te tukatuka me te whakamahinga whakamutunga o ngā ngongo. Ko ngā rauemi o ngā ngongo kirihou ko te polyethylene (mō te tinana ngongo me te pane ngongo), te polypropylene (te taupoki ngongo), te masterbatch, te kapia ārai, te waituhi tā, te wanihi, me ētahi atu. Nō reira, ko te whiriwhiri i tētahi rauemi ka pā tika ki te kounga o te ngongo. Heoi, ko te whiriwhiri i ngā rauemi ka whakawhirinaki anō hoki ki ngā āhuatanga pēnei i ngā whakaritenga akuaku, ngā āhuatanga ārai (ngā whakaritenga mō te hāora, te mamaoa wai, te tiaki kakara, me ētahi atu), me te ātete matū.
Te Kōwhiringa o ngā Paipa: Tuatahi, me tutuki ngā rauemi e whakamahia ana i ngā paerewa akuaku e tika ana, ā, me whakahaere ngā matū kino pēnei i ngā konganuku taumaha me ngā matū kanapa i roto i te awhe kua whakaritea. Hei tauira, mō ngā ngongo e kaweake ana ki te Hononga o Amerika, me tutuki te polyethylene (PE) me te polypropylene (PP) e whakamahia ana i te paerewa 21CFR117.1520 a te US Food and Drug Administration (FDA).
Ngā Āhuatanga Ārai o ngā Rauemi: Mena ko ngā mea kei roto i te takai o ngā kamupene matū o ia rā he hua e tino pāngia ana e te hāora (pēnei i ētahi mea whakapaipai mā) he tino pūngāwerewere rānei te kakara (pēnei i ngā hinu kakara, ētahi hinu rānei, waikawa, tote me ētahi atu matū waikura), me whakamahi ngā ngongo e rima-paparanga e whakapūtā ana i tēnei wā. Nā te mea ko te urunga hāora o te ngongo e rima-paparanga e whakapūtā ana (polyethylene/reini piri/EVOH/reini piri/polyethylene) he 0.2-1.2 waeine, ko te urunga hāora o te ngongo polyethylene paparanga kotahi noa he 150-300 waeine. I roto i tētahi wā, ko te tere whakaheke taumaha o te ngongo e rua-paparanga kei roto te etanoru he maha ngā wā iti iho i te ngongo kotahi-paparanga. Hei tāpiri, ko te EVOH he copolymer waipiro ethylene-vinyl me ngā āhuatanga ārai pai me te pupuri kakara (ko te hua pai ka tutuki ina 15-20 microns te matotoru).
Te pakari o ngā rauemi: He rerekē ngā whakaritenga a ngā kamupene matū o ia rā mō te pakari o ngā ngongo, nō reira me pēhea te whakatutuki i te pakari e hiahiatia ana? Ko te polyethylene e whakamahia whānuitia ana i roto i ngā ngongo ko te polyethylene iti-kiato, te polyethylene teitei-kiato, me te polyethylene iti-kiato raina. I roto i ēnei, he pai ake te pakari o te polyethylene teitei-kiato i te polyethylene iti-kiato, nō reira ka taea te whakatutuki i te pakari e hiahiatia ana mā te whakarerekē i te ōwehenga o te polyethylene teitei-kiato/polyethylene iti-kiato.
Ātete matū o ngā rauemi: He pai ake te ātete matū o te polyethylene kiato-teitei i te polyethylene kiato-iti.
Te ātete o ngā rauemi ki te huarere: Hei whakahaere i te mahi poto, te mahi roa rānei o ngā ngongo, me whai whakaaro ki ngā āhuatanga pēnei i te āhua, te ātete ki te pēhanga/te maturuturunga iho, te kaha o te hiri, te ātete ki te pakaru i te ahotea taiao (te uara ESCR), te kakara me te ngaronga o ngā matū hohe.
Te Kōwhiringa o te Masterbatch: He mea nui te Masterbatch ki te whakahaere kounga o ngā ngongo. Nō reira, i te wā e whiriwhiri ana i te Masterbatch, me whakaaro ngā kamupene kaiwhakamahi mēnā he pai te horapa, te pumau tātari me te pāmahana, te ātete huarere me te ātete hua. I roto i ēnei, he mea nui te ātete hua o te Masterbatch i te wā e whakamahia ana ngā ngongo. Mena kāore te Masterbatch e hototahi ki te hua kei roto, ka heke te tae o te Masterbatch ki roto i te hua, ā, he tino kino ngā hua. Nō reira, me whakamātautau ngā kamupene matū o ia rā i te pumau o ngā hua me ngā ngongo hou (ngā whakamātautau tere i raro i ngā tikanga kua tohua).
Ngā momo wanihi me ō rātou āhuatanga: Ka wehea te wanihi e whakamahia ana mō ngā ngongo ki te momo UV me te momo whakamaroke wera, ka taea te wehe ki te mata kanapa me te mata matte te āhua. Ehara i te mea ka puta noa ngā pānga tirohanga ataahua i te wanihi, engari ka tiaki hoki i ngā ihirangi, ā, he pānga motuhake ki te aukati i te hāora, te mamaoa wai me te kakara. I te nuinga o te wā, he pai te piri o te wanihi momo whakamaroke wera ki te tā wera me te tā mata hiraka i muri mai, engari he pai ake te kanapa o te wanihi UV. Ka taea e ngā kamupene matū o ia rā te whiriwhiri i te wanihi tika kia rite ki ngā āhuatanga o ā rātou hua. Hei tāpiri, me pai te piri o te wanihi kua rongoatia, he maeneene te mata kāore he poka, he ātete ki te takai, he ātete ki te kakahu, he ātete ki te waikura, ā, kāore he tae i te wā e rongoa ana.
Ngā whakaritenga mō te tinana ngongo/upoko ngongo:
1. Me maeneene te mata o te tinana o te ngongo, kāore he tohu, he karawarawa, he totoro, he whakaheke rānei. Me tika te tinana o te ngongo, kaua e piko. Me ōrite te matotoru o te pakitara o te ngongo. Me noho te matotoru o te pakitara o te ngongo, te roa o te ngongo, me te whānui o te ngongo ki roto i te awhe kua tohua;
2. Me hono pūmau te pane o te ngongo me te tinana o te ngongo, me ātaahua, me ātaahua hoki te aho hononga, ā, me ōrite te whānui. Kaua te pane o te ngongo e piko i muri i te hononga;
3. Me ōrite te pane o te ngongo me te taupoki o te ngongo, me maeneene te whakaweto me te whakaweto, ā, kaua e paheke i roto i te awhe taipana kua tohua, ā, kaua hoki e turuturu te wai, te hau rānei i waenganui i te ngongo me te taupoki;
Ngā whakaritenga tā: Ko te tukatuka ngongo he tikanga tānga ā-tuhi (OFFSET), ā, ko te nuinga o te waituhi e whakamahia ana he mea whakamaroke ki te UV, e hiahia ana kia kaha te piri me te ātete ki te hurihanga. Me noho te tae tā ki roto i te whānuitanga hohonu kua tohua, me tika te tūranga tānga, me noho te peka ki roto i te 0.2mm, ā, me oti, me mārama hoki te momotuhi.
Ngā Whakaritenga mō ngā Taupoki Kirihou: Ko ngā taupoki kirihou he mea hanga i te hanga werohanga polypropylene (PP). Ko ngā taupoki kirihou kounga teitei me kore he rārangi whakaheke me te kanapa e kitea ana, he rārangi pokepoke maeneene, he ine tika, ā, he maeneene te uru ki te pane o te ngongo. Kaua e puta he kino hanganga pērā i te pakarukaru, te pakaru rānei i te wā e whakamahia ana. Hei tauira, ina kei roto i te awhe te kaha whakatuwheratanga, me kaha te taupoki hurihuri ki te tu atu i te neke atu i te 300 takahanga me te kore e whati.
Ki taku whakaaro, mai i ngā āhuatanga o runga ake nei, me kaha te nuinga o ngā kamupene matū o ia rā ki te whiriwhiri i ngā hua tākai ngongo kounga teitei.
Wā tuku: Hurae-12-2024