Ngā Whakaritenga Akuaku mō ngā Mekameka Roera i roto i ngā Mīhini Tukatuka Kai

I. Anga Paerewa Matua o te Ao mō ngā Mekameka Roera Hauora

Kāore ngā whakaritenga akuaku mō ngā mekameka roera i roto i ngā mīhini tukatuka kai i wehea engari i whakaurua ki roto i tētahi pūnaha haumaru kai kotahi ā-ao, e piri ana ki ngā momo paerewa e toru:
* **Tiwhikete Rauemi Whakapā Kai:** E mārama ana te whakaritenga a te FDA 21 CFR §177.2600 (USA), EU 10/2011 (EU), me te NSF/ANSI 51 me kore e paitini ngā rauemi mekameka, me kore e kakara, ā, me ≤0.01mg/dm² te taumata hekenga o te konganuku taumaha (e rite ana ki te whakamātautau ISO 6486);
* **Paerewa Hoahoa Akuaku Mīhini:** Ko te tiwhikete Momo EL Akomanga I a EHEDG e hiahia ana kia kaua he wāhi paru mō ngā taputapu, ko te EN 1672-2:2020 ia e whakahaere ana i ngā mātāpono hototahi horoi me te whakahaere mōrearea mō ngā mīhini tukatuka kai;
* **Ngā Whakaritenga Motuhake mō te Taupānga:** Hei tauira, me tutuki i te umanga miraka ngā whakaritenga ātete ki te waikura i roto i ngā taiao haumākū nui me te waikura, ā, me ātete hoki ngā taputapu tunu ki ngā piki me ngā heke o te pāmahana mai i te -30℃ ki te 120℃.

II. Ngā Pūtake Akuaku me te Haumaru mō te Kōwhiringa Rauemi

1. Ngā Rauemi Whakarewa: He Taurite o te Ātete ki te Waikura me te Kore-Paitini
Ko te maitai kore waikura austenitic 316L te mea nui, e 30% te ātete pai ake ki te waikura i te maitai kore waikura 304 i roto i ngā taiao kei roto te hauwai (pēnei i te horoinga tote), hei ārai i te poke o te kai i puta mai i te waikura whakarewa.
Kaua e whakamahi i te maitai waro noa, i ngā koranu rānei kāore i whakamanahia, nā te mea ka ngāwari te tango i ngā katote konganuku taumaha e ēnei rauemi, ā, kāore e ātete ki ngā kaihoko horoi waikawa, kawakore rānei e whakamahia ana i roto i te tukatuka kai (pēnei i te 1-2% NaOH, 0.5-1% HNO₃).

2. Ngā Wāhanga Kore-Whakarewa: Ko te Whakatutukitanga me te Tiwhikete te Mea Matua
Ka taea te whakamahi i te rauemi UHMW-PE kua whakamanahia e te FDA mō ngā roera, ngā ringaringa, me ētahi atu wāhanga, he mata maeneene, he matotoru hoki, kāore e piri wawe ki te huka, te hinu, ētahi atu toenga rānei, ā, he ātete ki te horoi pehanga teitei me te waikura patu huakita.
Me tutuki i ngā wāhanga kirihou ngā paerewa rauemi kikorangi, mā rānei e hāngai ana ki te ahumahi kai hei karo i te mōrearea o te hekenga o te tae (hei tauira, ngā wāhanga kirihou o ngā mekameka akuaku raupapa igus TH3).

III. Ngā Mātāpono Whakapaipai Akuaku o te Hoahoa Hanganga

Ko te rerekētanga matua i waenga i ngā mekameka roera akuaku me ngā mekameka ahumahi noa kei roto i tō rātou "hoahoa koki kore", me te whakarite kia whai ake ēnei:

Ngā Whakaritenga mō te Mata me te Koki:
Te whakakanapa whakaata me te taratara o te mata Ra≤0.8μm hei whakaiti i te piri o te moroiti;
Ko ngā radius kokonga o roto katoa he ≥6.5mm, ka whakakorea ngā koki koi me ngā kōhao. E whakaatu ana tētahi rangahau take o ngā taputapu tukatuka mīti ko te arotau i te radius kokonga o roto mai i te 3mm ki te 8mm i whakaiti i te tere tipu moroiti mā te 72%;
Te Wetewete me te Hoahoa Waikeri:
He hanganga āhua-pōturi e tautoko ana i te wetewete me te huihuinga tere (he wā wetewete me te huihuinga tino pai ≤10 meneti) mō te horoi hohonu ngāwari;
Me waiho ngā awa waikeri ki roto i ngā āputa mekameka hei ārai i te toenga wai i muri i te horoinga. Mā te hoahoa tuwhera o te mekameka roera ka taea te whakapai ake i te whai huatanga o te CIP (ma i te wāhi kotahi) mā te 60%;
Te Parenga Hiritanga Whakapai Ake:
Ko ngā wāhanga peera he hiri takirua o te pito o raro me te ngutu, e tutuki ai te whakatauranga ā-wai IP69K me te matotoru ārai ≥0.5mm. Me ārai ngā matūriki totoka me ngā wai kei uru; kāore e whakaaetia ngā hanganga pūtu e kitea ana kia kore ai ngā āputa miro e huri hei wāhi matapo horoi.

IV. Ngā Tukanga Whakahaere Whakatutukitanga mō te Horoi me te Whakahinuhinu

1. Ngā Whakaritenga Hototahi mō te Horoi
Ka ātete ki ngā tukanga horoi CIP me ngā pāmahana o te 80-85℃ me ngā pēhanga o te 1.5-2.0 pae, ka tangohia te neke atu i te 99% o ngā toenga i roto i te 5 meneti; Ka hototahi ki ngā whakarewa waro pēnei i te etanoru me te acetone, tae atu ki ngā patu huakita kai-kai, kāore e tihore te paninga, e tawhito rānei te rauemi.
2. Ngā Paerewa Akuaku mō ngā Pūnaha Whakahinuhinu
Me whakamahi he hinu whakahinuhinu kai NSF H1, me whakamahi rānei i tētahi hanganga whakahinuhinu-ake (pērā i ngā roera whakahinuhinu-ake i hangaia ki te rauemi UHMW-PE) hei whakakore i te tūponotanga o te poke o te kai i roto i te hinu whakahinuhinu; Kāore e whakaaetia te tāpiri i te hinu kore-kai i te wā e whakahaerehia ana te mekameka, ā, me tango rawatia ngā toenga hinu tawhito i te wā tiaki kia kore ai e poke.

V. Ngā Aratohu Kōwhiringa me te Tiaki

1. Te Mātāpono Kōwhiringa e Hangai ana ki te Horopaki

2. Ngā Kaupapa Matua mō te Tiaki
* Te horoi i ia rā: I muri i te whakamahinga, tangohia te toenga mai i ngā āputa pereti mekameka me ngā mata roera. Horoia ki te pēhanga teitei, ka whakamaroke kia tino maroke hei ārai i te haukū me te tipu o ngā huakita.
* Tirotiro Auau: Whakakapia tonutia te mekameka ina neke atu i te 3% o te roa kua whakaritea. Tirohia i te wā kotahi te pakaru o te niho o te poroka hei ārai i te pakaru tere o te whakamahi tahi i ngā wāhanga tawhito me ngā wāhanga hou.
* Manatoko Whakatutukitanga: Paahi i te whakamātautau koiora ATP (uara RLU ≤30) me te whakamātautau wero moroiti (toenga ≤10 CFU/cm²) hei whakarite kia tutukihia ngā paerewa akuaku.

Whakamutunga: Te Uara Matua o ngā Mekameka Roera Ā-Hauora
He kaupapa pūnaha te akuaku me te haumaru o ngā mīhini tukatuka kai. Hei wāhanga matua o te tuku, ko te tutuki i ngā whakaritenga o ngā mekameka roera te whakatau tika i te tūāpapa haumaru o te hua kai whakamutunga. Mā te piri ki ngā paerewa o te ao mō te whiriwhiri rauemi, te hoahoa hanganga maeneene, me te tiaki paerewa, ehara i te mea ka whakaiti noa i te tūponotanga o te poke engari ka tutuki hoki he whakapainga takirua i roto i te haumaru kai me te whai huatanga o te whakaputa mā te whakaiti i te wā horoi me te whakaroa i te roa o te ratonga. Ko te whiriwhiri i ngā mekameka roera akuaku kua whakamanahia e EHEDG me te FDA te mea nui hei hanga i te arai akuaku tuatahi me te mea tino nui mō ngā kamupene tukatuka kai.