1. Whakaranu
Ki te whakatauritea ki ngā momo rapa chloroprene tuku iho. Kāore e hiahiatia he whakakirikiritanga mō te polyethylene chlorinated, ā, kāore e hiahiatia he penapena i muri i te whakakirikiritanga. Ka taea te whakaoho me te mimiti i ngā tāpiringa wai i roto i te tauira polyethylene chlorinated mā roto i ētahi atu paura i te wā e puranga ana, kia kore ai e horoia, e maturuturu rānei i te wā e whakaranua ana. Me neke atu i te 160 ℃ te pāmahana whakamomona o te polyethylene chlorinated. Ka taea te whakahaere tonu i te hanga me te wai whakamatao, engari ko te pāmahana i te nuinga o te wā kāore e neke ake i te 160 ℃. Nō reira, kāore e hiahiatia te tāpiri motuhake i te kaihoko whakamomona e whakamahia ana i roto i te polyethylene chlorinated mai i ētahi atu tāpiringa, ā, ka taea te whakaranu tika ki ētahi atu paura. He whānui ngā whakaritenga pāmahana whakaranu mō te polyethylene chlorinated, mai i te 40 ℃ ki te 120 ℃, ā, kāore e piri, e wera rānei ngā roera. I te whakamahi i te mīhini whakaranu tuwhera, me whakaweto te wai whakamatao, me tahuri rānei te mamaoa i te wā tika. Nā te mea he nui te kaha wera e puta mai ana i te polyethylene whai kōroine nā te waku i te wā e whakaranu ana, me tāpiri he wai whakamatao e ranea ana i te wā e whakaranu ana i roto i te mīhini whakaranu o roto. Ko te pāmahana tohatoha i te nuinga o te wā kei waenga i te 110 ℃ me te 120 ℃. Mā tēnei ka taea te whakaranu tonu i te nui o te mahi me te kore e pā kino ki te kounga o te polyethylene whai kōroine.
2. Te wāhi waka me te whakamahine wera
Ki te whakatauritea ki te rapa chloroprene, he pai ake te pumau o te rapa whakauru polyethylene chlorinated, ā, kāore e hiahiatia he rokiroki i te pāmahana iti. Kāore he pānga tika o ngā pāmahana teitei i te raumati ki tēnei. Kāore e hiahiatia he whakamatao mō te polyethylene chlorinated i te wā e whakamahinehia ana i te wera, ā, ko te pāmahana whakamahine he nui ake i te 50 ℃.
3. Te hanga i ngā papa tiaki mō ngā waea me ngā taura
Ko te polyethylene whai kōkōwai ka taea te whakamahi i te nuinga o te wā i roto i te hanga i ngā uhi waea me te taura mā te whakamahi i ngā extruder tīwiri roa, i ngā extruder tīwiri poto rānei. I te nuinga o te wā, ko ngā uhi waea me te taura i hangaia e ngā extruder tīwiri roa ka kanapa ake, ka maeneene ake, ā, ka nui ake ngā wāhanga whakawhiti. I te wā e extruding ana i te piri polyethylene whai kōkōwai, ko te pāmahana o te pane kei waenganui i te 6°C me te 90°C. Nā te kaha o te wera e puta mai ana i te wā e whakamahinehia ana te polyethylene whai kōkōwai, ka teitei ake te pāmahana i roto i te rauemi rapa, i waenganui i te 90℃ me te 120℃. Nō reira, i te wā e whakamahi ana i te extruder tīwiri roa, me aroturuki me te whakahaere pai i te pāmahana taketake kia kore ai e wera te rauemi rapa.
4. Te tukanga whakapūngāwhā
Ki te whakatauritea ki ētahi atu momo rauemi rapa e whakamahia whānuitia ana, he teitei te pāmahana e hiahiatia ana mō te tukanga whakamomona o te polyethylene whai kōro, i waenganui i te 160 ℃ me te 180 ℃. Ko ngā whakaritenga whakamomona mō te waea polyethylene whai kōro ko: Ina 054 MPa te pēhanga mamaoa kua kōkō, ko te pāmahana whakamomona he 160 ℃, ā, ko te wā whakamomona he 25 meneti ki te 30 meneti te roa. Ina 098MFRa te pēhanga mamaoa kua kōkō, ko te pāmahana whakamomona he 180 ℃, ā, ko te wā whakamomona he 6mir-10 meneti te roa. Ina 152MPa te pēhanga mamaoa kua kōkō, ko te pāmahana whakamomona he 200 ℃, ā, ko te wā whakamomona he 1mir-3 meneti te roa. I te piki haere o te pēhanga mamaoa kua kōro, ka piki haere hoki te pāmahana whakamomona, i te wā e heke ana te wā whakamomona. He pai ake te ātete haehae o te rapa polyethylene whai kōro hua.
Te wā tuku: Hōngongoi-05-2025
