Ko ngā tohu tukanga whakaputa kiriata pupuhi LDPE, me te tātaritanga o ngā raruraru noa, 99% o ngā raruraru kua whakatauhia!

Ka taea te pupuhi i te nuinga o ngā kirihou wera hei hanga kiriata pupuhi, he ngongo kirihou angiangi kua pēhia ki roto i te ngongo, kātahi ka pupuhihia ki te hau kōpeke hei whakawhanui i te kirihou i a ia e wera tonu ana, kātahi ka whakamataohia, ka hangaia hei hanga kiriata porotaka. Ko te mahi a tēnei kiriata kei waenganui i te kiriata hāngai me te kiriata maka: he pai ake te kaha i te kiriata maka, ā, he kino ake te hiri wera i te kiriata maka.

He maha ngā momo kiriata e hangaia ana mā te tikanga pupuhi pokepoke, pērā i te polyethylene iti te matotoru (LDPE), te polypropylene (PP), te polyethylene teitei te matotoru (HDPE), te nairona (PA), te copolymer ethylene-vinyl acetate (EVA), me ētahi atu.

Kei roto i tēnei tuhinga he whakataki poto mō te tukanga whakaputa pokepoke pupuhi o ngā kiriata polyethylene iti-kiato (LDPE) e whakamahia whānuitia ana, me ō rātou ngoikoretanga noa.

01 Kōwhiringa o ngā rauemi kiriata polyethylene pupuhi

1. Ko te rauemi mata e whakamahia ana me hanga mai i ngā matūriki kapia polyethylene kiriata pupuhi kei roto te nui tika o te kaihoko paheke hei whakarite i te tuwhera o te kiriata.

2. Kaua te taupū rewa (MI) o ngā matūriki kapia e nui rawa, he nui rawa te taupū rewa (MI), he iti rawa te matotoru o te kapia rewa, he whaiti te whānuitanga tukatuka, he uaua ki te whakahaere i ngā tikanga tukatuka, he ngoikore ngā āhuatanga hanga kiriata o te kapia, he uaua ki te tukatuka hei kiriata; hei tāpiri, he nui rawa te taupū rewa (MI), he whaiti rawa te tohatoha taumaha ngota whanaunga o te polymer, he ngoikore te kaha o te kiriata.

Nō reira, me whakamahi he taupū rewa iti ake (MI) me te tohatoha taumaha ngota whānui ake o te rauemi mata o te kapia, kia tutuki ai ngā whakaritenga mahi o te kiriata, engari kia mau ai hoki ngā āhuatanga tukatuka o te kapia. Ko ngā kiriata polyethylene pupuhihia he mea hanga i te polyethylene me te taupū rewa (MI) i waenga i te 2 ki te 6 g/10min.

02.Te mahi hangainga tohu whakahaere

Ko te tukanga pupuhi kiriata he penei te ahua.
Te utaina o te hopara – te whakaputanga rauemi kirihou – te pupuhi me te tō – te whakamatao i te mowhiti hau – te whakawhāiti i te wheua herringbone – te tō mā te whakamahi i ngā roera tō – te maimoatanga korona – te takai kiriata

Heoi, he mea tika kia kīia ko te mahi a te kiriata pupuhi he mea nui ki ngā tawhā o te tukanga whakaputa. Nō reira, he mea nui kia whakapakarihia te mana whakahaere o ngā tawhā tukanga me te whakarite i te whakahaerenga o te tukanga kia pai ai te whakaputanga me te whiwhi hua kiriata kounga teitei.

I te hanga kiriata polyethylene pupuhi, ko te arotahi matua ko te whakahaere pai i ngā tawhā tukanga e whai ake nei.

Te pāmahana Extruder

I te wā e pupuhi ana te whakarewa i te kiriata polyethylene iti-kiato (LDPE), ko te pāmahana extrusion e whakahaerehia ana i waenga i te 160°C me te 170°C, me whakarite kia ōrite te pāmahana o te pane, kia teitei rawa te pāmahana extrusion, kia ngāwari te pirau o te kapia, kia pakarukaru hoki te kiriata, inā koa ka tino heke te kaha kume roa.

Ki te iti rawa te pāmahana, kāore te kapia e pai te kirihou, kāore e whānui, e totoro mārie, he iti te kaha kume o te kiriata, ā, he ngoikore te kanapa me te mārama o te mata, ā, ka rite ki te tauira hiahia rakau me ngā karihi kāore anō kia rewa (ngā kanohi ika).

Ratiowehenga pupuhi-ake

Ko te ōwehenga pupuhi tētahi o ngā tino kaupapa whakahaere i roto i te tukanga hanga kiriata pupuhi, ā, e pā ana ki te ōwehenga i waenga i te diameter o te mirumiru kiriata pupuhi me te diameter o te mowhiti ngongo kāore anō kia pupuhihia.

Ko te ōwehenga pupuhi he whakarea o te whānui taha o te kiriata, e totoro ana i te kiriata ki te taha. Mā te totoro ka puta he taumata o te whakatakotoranga o ngā ngota kirihou, ka piki ake te ōwehenga pupuhi, ka hua ake he pikinga o te kaha taha o te kiriata.

Heoi, kaua te ōwehenga pupuhi e nui rawa, ki te kore ka ngāwari te whakararuraru i te mirumiru kiriata, ā, ka ngāwari te kiriata ki te miro. Nō reira, me rite te ōwehenga pupuhi ki te ōwehenga kukume. I te nuinga o te wā, me whakahaere te ōwehenga pupuhi o te kiriata polyethylene iti te kiato (LDPE) i te 2.5 ki te 3.0.

Rahi tohenga

Ko te ōwehenga kume ko te ōwehenga i waenga i te tere kume o te kiriata me te tere whakaputa o te mowhiti ngongo. Ko te ōwehenga kume ko te whakarea totoro roa e hoatu ana ki te kiriata tōna aronga ki te ahunga kume.

Ki te piki ake te ōwehenga kume, ka piki ake te kaha roa, ā, ka angiangi haere te matotoru o te kiriata, engari ki te nui rawa te ōwehenga kume, he uaua ki te whakahaere i te matotoru o te kiriata, ā, tera pea ka pakaru te kiriata, ka puta te āhuatanga o te kiriata pakaru. Ko te ōwehenga kume o te kiriata LDPE ka whakahaeretia i waenga i te 4 me te 6.

Tautoko Dew

Ko te ira tomairangi, e mōhiotia ana ko te rārangi hukapapa, e pā ana ki te rārangi wehewehe i te wāhi e tomo ai te kirihou ki te āhua tere teitei mai i te āhua rere matotoru. I roto i te tukanga kiriata pupuhi, ka noho te polyethylene iti-kiato (LDPE) i roto i te āhua rewa ina tukuna mai i te whakatuwheratanga o te mate me te mārama pai.

Ina puta atu i te whakatuwheratanga o te mate, me whakamatao te wāhi pupuhi o te mirumiru kiriata e te mowhiti hau whakamatao. Ina pupuhihia te hau whakamatao i tētahi koki me te tere ki te mirumiru kiriata kirihou kua puta mai i te pane, ka pā te mirumiru kiriata wera ki te hau whakamatao, ka tangohia te wera o te mirumiru kiriata e te hau makariri, ā, ka tino heke tōna pāmahana ki raro iho i te pāmahana rere matotoru o te polyethylene iti-kiato (LDPE), ā, ka whakamatao, ka whakamaroke, ka pōuriuri hoki.

I runga i te mirumiru kiriata kua pupuhihia ka kitea he rārangi wehewehe i waenga i te mārama me te ngoikore, koinei te ira tomairangi (te rārangi hukapapa rānei).

I te wā e pupuhi ana te kiriata, he pānga nui tō te taumata tomairangi ki ngā āhuatanga o te kiriata.

Mena he teitei te ira tomairangi, ā, kei runga ake i te mirumiru kiriata kua pupuhihia, ka pupuhihia te kiriata i roto i te āhua wai, ā, mā te pupuhi ka angiangi noa te kiriata me te kore e totoro ngā ngota, ā, i taua wā ka tata te mahi a te kiriata kua pupuhihia ki tērā o te kiriata whakarewa.

I tetahi atu taha, ki te iti te ira tomairangi, ka pupuhihia te āhua totoka, ina kei roto te kirihou i te āhua tino pīngore, ā, ka mahi te pupuhi hei totoro whakawhiti, e whakahāngai ana i ngā ngota kia tata ai te mahi a te kiriata pupuhi ki tērā o te kiriata whakahāngai.

03. Ngā whakaritenga hangarau mō te mahi taketake

Ngā Whakatakotoranga me ngā Whakarerekētanga

Me tutuki i te whānui me te matotoru o te kiriata polyethylene ngā whakaritenga; me ōrite te matotoru o te kiriata, me ngā rerekētanga matotoru iti i ngā ahunga whakapae me te poutū, me te tohatoha ōrite o ngā rerekētanga.

ahua

Me whakakirikiri pai ngā kiriata polyethylene, kia kore he "awa wai" me he "kapua" e kitea ana; me papatahi, me maeneene hoki te mata o te kiriata, kia kore he kita, kia torutoru noa iho ngā kopa ora; kia kore he mirumiru, he pū, he pakaru rānei; kia kore he ira pango e kitea ana, he poke, he tioata, he poraka mārō rānei; kia kore he aho iri kino, he miro rānei.

Ngā taonga ā-tinana me te hanga miihini

I te mea ka pāngia te kiriata polyethylene e ngā kaha ā-pūkaha ina whakamahia ana i roto i ngā tukanga tā, i ngā tukanga whakaranu rānei, me tino pai ngā āhuatanga ā-tinana me ngā āhuatanga ā-pūkaha o te kiriata polyethylene, tae atu ki te kaha kume, te roa i te wā e whati ana, te kaha haehae me ētahi atu tohu me tutuki i ngā paerewa.

Te rahi o te taumahatanga o te mata

Kia pai ai te makuku me te piri o ngā waituhi tā me ngā piripiri whakapiri ki te mata o te kiriata polyethylene, me tutuki te kukū o te mata o te kiriata polyethylene i ētahi paerewa, ki te kore ka pāngia te rere pai o te tā me te whakaputa whakapiri.

Ko te tikanga whānui, me eke te kukū o te mata o ngā kiriata polyethylene ki te 38 dyne, ā, ko te mea pai ko te 40 dyne, neke atu rānei.

04. Ngā hapa me ngā otinga e kitea whānuitia ana

He piri rawa te kiriata, he ngoikore te āheinga ki te whakatuwhera
1. Te take o te korenga.
a. he momo rauemi mata kapia hē, ehara i te matūriki kapia LDPE kounga kiriata pupuhi, kāore he whakatuwheratanga, he iti rānei te ihirangi whakatuwheratanga.
b. He tiketike rawa te pāmahana o te kapia rewa, ā, he nui rawa te rere.
c. He nui rawa te ōwehenga pupuhi, ka hua ake he ngoikore te tuwhera o te kiriata.
d. puhoi rawa te whakamatao, kāore i te rawaka te whakamatao o te kiriata, ā, ka piri tahi ngā hononga i raro i te mahi a te pēhanga o te roera kukume.
He tere rawa te tere o te kukume.

2. Ngā otinga.
a. Whakakapia te rauemi mata o te kapia, tāpirihia rānei he nui o te kaihoko whakatuwhera ki te mīhini hanga pereki.
b. Te whakaheke tika i te pāmahana whakaputa me te pāmahana o te kapia.
c. Te whakaiti tika i te ōwehenga pahūtanga.
d. Te whakanui ake i te rōrahi o te hau hei whakapai ake i te pānga whakamatao me te whakateretere i te tere whakamatao o te kiriata.
e. Whakaitihia te tere o te kume kia tika.

Te mārama o te kiriata ngoikore

1. Te take o te korenga.
a. He iti te pāmahana whakaputa me te koretake o te kirihou o te kapia, ka hua ake he koretake o te mārama o te kiriata pupuhi.
b. He iti rawa te ōwehenga pahūtanga.
c. Kāore i te pai te whakamatao, ka pā tēnei ki te mārama o te kiriata.
d. Te nui rawa o te makuku i roto i te rauemi mata o te kapia.
e. He tere rawa te tere o te kume, ā, kāore i te rawaka te whakamatao o te kiriata.

2. Ngā otinga.
a. Te whakanui ake i te pāmahana o te extrusion kia tika ai te whakakirikiri ōrite o te kapia.
b. He pikinga tika o te ōwehenga pahūtanga.
c. Te whakanui ake i te rōrahi o te hau hei whakapai ake i te pānga whakamatao.
d. Te whakamaroke i ngā rauemi mata.
e. Whakaitihia te tere o te kume kia tika.

Te whakakorikori o te kiriata

1 Te take o te korenga.
a. Te matotoru o te kiriata kāore i te ōrite.
b. Kāore i te rawaka te pānga whakamatao.
c. He nui rawa te ōwehenga pupuhi, ka kore e pumau te mirumiru kiriata, ka nekeneke haere i tetahi taha ki tetahi taha, ā, ka ngāwari hoki te miro.
d. He nui rawa te koki o te maripi herringbone, ā, he poto noa te tawhiti o te mirumiru kiriata, nō reira he ngāwari hoki te miro o te kiriata.
e. te pēhanga ōrite kore i ngā taha e rua o te roera kume, he teitei tetahi taha, he iti tetahi taha.
f. Kāore ngā toki i waenganui i ngā roera arataki e whakarara ana, ka pā tēnei ki te pumau me te horapa o te kiriata, ka hua ake he kita.

2. Ngā otinga.
a. Whakakapia te rauemi mata o te kapia, tāpirihia rānei he nui o te kaihoko whakatuwhera ki te mīhini hanga pereki.
b. Te whakaheke tika i te pāmahana whakaputa me te pāmahana o te kapia.
c. Te whakaiti tika i te ōwehenga pahūtanga.
d. Te whakanui ake i te rōrahi o te hau hei whakapai ake i te pānga whakamatao me te whakateretere i te tere whakamatao o te kiriata.
e. Whakaitihia te tere o te kume kia tika.

Tauira wai kohu i runga i te kiriata

1. Te take o te korenga.
a. He iti te pāmahana whakaputa, ā, he ngoikore te whakakirikiri o te kapia.
b. He haukū te kapia, ā, he nui rawa te makuku.

2. Otinga.
a. Whakatikatikahia te tautuhinga pāmahana o te extruder, ā, whakapiki ake i te pāmahana extrusion kia tika.
b. Whakamarokehia te rauemi mata o te kapia, me te kore e neke ake i te 0.3% te nui o te makuku o te kapia.

Te matotoru o te kiriata kāore i te ōrite

1. Te take o te korenga.
a. Ka pā tika te ōritetanga o te āputa mate ki te ōritetanga o te matotoru o te kiriata. Ki te kore te āputa mate e ōrite, he nui ake te āputa o ētahi wāhanga, he iti ake te āputa o ētahi wāhanga, ā, ka nui ake, ka iti iho rānei te rōrahi whakaputanga, nō reira, kāore te matotoru o te kiriata i hangaia e ōrite, he angiangi ētahi wāhanga, he matotoru ētahi wāhanga.
b. Te tohatoha pāmahana kore taurite i te waha o te pokepokea ai, me te pāmahana teitei me te pāmahana iti, ka hua ake he matotoru kiriata kore taurite i muri i te pupuhi pokepokea ai.
c. Te koretake o te rere o te hau huri noa i te mowhiti hau whakamatao, ka hua ake he pānga whakamatao koretake, ā, nō reira he koretake te matotoru o te kiriata.
d. kāore i te tika te ōwehenga o te pupuhi me te kume, e uaua ai te whakahaere i te matotoru o te mirumiru kiriata.
e. Kāore te tere kukume e pumau, ā, e rerekē tonu ana, ka pā tēnei ki te matotoru o te kiriata.

2. Otinga.
a. Te whakarerekē i te āputa whakatuwheratanga o te pane o te rakau matua kia ōrite ai ngā wāhi katoa.
b. whakarerekētia te pāmahana o te whakatuwheratanga o te pane kia ōrite te pāmahana o te wāhanga whakatuwheratanga o te mate.
c. Te whakarerekē i te pūrere whakamatao kia ōrite ai te rere o te hau mai i te putanga hau.
d. Te whakarerekētanga o ngā ōwehenga pupuhi me te kume.
e. Tirohia te puku ā-mīhini kia mau tonu te tere o te kume.

Kei te taha matotoru te matotoru o te kiriata

1. Te take o te korenga.
a. He nui te āputa mate me te rahinga o te whakaputanga, nō reira he matotoru te matotoru o te kiriata.
b. He nui rawa te rōrahi hau o te mowhiti hau whakamatao, ā, ka tere rawa te whakamatao o te kiriata.
c. He puhoi rawa te tere o te kume.

2. Otinga.
a. Te whakatikatika i te āputa whakatuwheratanga o te mate.
b. Whakaitihia te nui o te hau o te mowhiti hau kia tika ai te pupuhi i te kiriata, kia angiangi ake ai.
c. Whakanuia te tere o te kume kia tika.

Matotoru kiriata angiangi

1. Te take o te korenga.
a. He iti rawa te āputa o te mata o te mate, ā, he teitei rawa te ātete, nō reira he angiangi te matotoru o te kiriata.
b. he iti rawa te rōrahi hau o te mowhiti hau whakamatao, ā, he puhoi rawa te whakamatao o te kiriata.
c. He tere rawa te tere o te kume, ā, ka totoro rawa te kiriata, ka angiangi te matotoru.

2. Otinga.
a. Te whakatikatika i te āputa whakatuwheratanga o te mate.
b. Whakanuia te rahinga hau o te mowhiti hau kia tika ai te whakamatao o te kiriata.
c. Whakaitihia te tere o te kume kia tika.