Samalani mukamaumba jekeseni PET Perform?

ngati mukufuna makina a PET funsani FLYSE

Contact: Lv 8618958305290

1. Kukonza mapulasitiki

Chifukwa ma macromolecules a PET amakhala ndi magulu a lipid ndipo amakhala ndi hydrophilicity, ma pellets amakhudzidwa kwambiri ndi madzi pa kutentha kwakukulu. Pamene madzi okhutira kuposa malire, kulemera kwa maselo a PET kumachepa panthawi yokonza, ndipo zinthuzo zimakhala zamitundumitundu komanso zosalimba. Chifukwa chake, zinthuzo ziyenera kuuma musanayambe kukonza, ndipo kuyanika kutentha ndi 150 ° C kuposa 4 maola, kawirikawiri 170 ° C kwa 3-4 maola. Njira yowombera mpweya ingagwiritsidwe ntchito kuti muwone ngati zinthuzo zauma. Nthawi zambiri, chiwerengero cha zipangizo zobwezerezedwanso sayenera kupitirira 25%, ndi zinthu zobwezerezedwanso ziyenera kuumitsidwa bwino.

2. Kusankha makina opangira jekeseni

Chifukwa PET imakhala ndi nthawi yochepa yokhazikika pambuyo pa malo osungunuka ndi malo osungunuka kwambiri, ndikofunikira kusankha jekeseni yokhala ndi magawo owongolera kutentha komanso kutulutsa kutentha kocheperako pakupanga pulasitiki, ndi kulemera kwenikweni kwa mankhwala (zinthu zokhala ndi madzi) sayenera kuchepera jekeseni wa makina. 2/3 cha ndalama. Kutengera zofunika izi, FLYSE yapanga makina ang'onoang'ono komanso apakatikati apulasitiki a PET m'zaka zaposachedwa. Mphamvu yoletsa imasankhidwa molingana ndi 6300t/m2.

3. Mapangidwe a nkhungu ndi zipata

PET preforms amapangidwa ndi otentha othamanga amaumba. Ndi bwino kukhala ndi bolodi yotchinga kutentha pakati pa nkhungu ndi template ya makina opangira jekeseni, ndipo makulidwe ake ndi pafupifupi 12mm, ndipo bolodi lotchingira kutentha liyenera kupirira kuthamanga kwambiri. Utsi uyenera kukhala wokwanira kupewa kutentha kwambiri kapena kugawikana, koma kuya kwa doko la utsi sikuyenera kupitirira 0.03mm, apo ayi n'zosavuta kutulutsa kung'anima.

4. Sungunulani kutentha

Ikhoza kuyezedwa ndi njira yowombera mpweya. 270-295℃, GF-PET yowonjezera ikhoza kukhazikitsidwa ku 290-315 ℃, etc..

5. Kuthamanga kwa jekeseni

Nthawi zambiri, a liwiro la jakisoni ziyenera kukhala zachangu, zomwe zingalepheretse kulimba msanga panthawi ya jekeseni. Koma mofulumira kwambiri, kumeta ubweya wambiri kumapangitsa kuti zinthuzo zisawonongeke. Kuwombera kumatsirizidwa mkati 4 masekondi.

6. Kupanikizika kwa msana

M'munsi ndi bwino, kuti asatope. Nthawi zambiri osapitilira 100bar. Nthawi zambiri sizofunika.

7. Nthawi yogona

Osagwiritsa ntchito nthawi yochulukirapo kuti mupewe kuwonda kwa maselo. Yesetsani kupewa kutentha pamwamba pa 300 ° C. Ngati nthawi yopuma ndi yochepa kuposa 15 mphindi. Zimangofunika kuwomberedwa ndi mpweya; ngati zitenga zambiri kuposa 15 mphindi, iyenera kutsukidwa ndi viscosity PE, ndipo kutentha kwa mbiya kuyenera kutsitsidwa ku kutentha kwa PE mpaka kuyatsidwanso.

8. Kusamalitsa

1) Zinthu zobwezerezedwanso zisakhale zazikulu kwambiri, mwinamwake n'zosavuta “mlatho” pamalo opanda kanthu ndikukhudza plasticization. 2) Ngati kutentha kwa nkhungu sikuyendetsedwa bwino kapena kutentha kwa zinthu sikukuyendetsedwa bwino, ndi zosavuta kupanga “chifunga choyera” ndi opacity. Kutentha kwa nkhungu ndi kochepa komanso kofanana, liwiro loziziritsa liri mwachangu, ndipo mankhwala ndi mandala ndi zochepa crystallization.