Mafunso asanu ndi atatu oti mumvetsere mukamabaya jekeseni wa botolo la PET

1. Chithandizo cha pulasitiki

Chifukwa ma PET macromolecules ali ndi magulu a lipid ndipo amakhala ndi zinthu zina za hydrophilic, njereyo imamva madzi kutentha kwambiri.Madzi akamadutsa malire, kulemera kwa maselo a PET kumachepa pokonza, ndipo zinthuzo zimakhala zamtundu komanso zowonongeka.
Choncho, pamaso processing, zakuthupi ayenera zouma, ndi kuyanika kutentha 150 ℃, maola oposa 4;zambiri 170 ℃, 3-4 maola.Njira ya mpweya ingagwiritsidwe ntchito kuyesa kuyanika kwathunthu.Gawo la zida zobwezeretsanso botolo la PET billet siziyenera kupitilira 25%, ndipo zida zobwezerezedwanso ziyenera kuumitsidwa bwino.

2. Kusankha makina opangira jekeseni

Chifukwa PET imakhala ndi nthawi yochepa yokhazikika pambuyo pa malo osungunuka ndi malo osungunuka kwambiri, m'pofunika kusankha njira yopangira jekeseni yokhala ndi magawo ambiri oletsa kutentha komanso kutsika pang'onopang'ono komanso kutulutsa kutentha panthawi ya plasticizing, ndi kulemera kwenikweni kwa mankhwala (kuphatikizapo zotengera madzi) sayenera kuchepera 2/3 ya kuchuluka kwa jakisoni wa makinawo.

3. Nkhungu ndi kuthira chipata kamangidwe

PET botolo la mluza, lomwe limapangidwa ndi nkhungu yotulutsa kutentha, nkhungu ndi makina opangira jakisoni pakati pa abwino kukhala ndi mbale yotchinjiriza kutentha, makulidwe ake ndi pafupifupi 12mm, ndipo mbale yotchingira kutentha iyenera kupirira kupanikizika kwambiri.Utsi uyenera kukhala wokwanira kupewa kutenthedwa kapena kugawikana kwanuko, koma kuya kwa doko sikudutsa 0.03mm, apo ayi ndikosavuta kutulutsa mbali yowuluka.

4. Sungunulani kutentha

Muyezo wa njira yopezera mpweya, 270-295 ℃, giredi yowonjezera ya GF-PET ikhoza kukhazikitsidwa ku 290-315 ℃, etc.

5. Kuthamanga kwa jekeseni

Kuthamanga kwa jakisoni wamba kuyenera kukhala kofulumira kuti mupewe kukomoka msanga panthawi yobaya.Koma mofulumira kwambiri, kumeta ubweya wa ubweya ndikwambiri, kumapangitsa kuti zinthuzo zikhale zosalimba.Kuwombera kumatsirizika mumasekondi 4.

6. Kupanikizika kwa msana

M'munsi ndi bwino, kupewa kuvala.Nthawi zambiri osapitilira 100bar, nthawi zambiri samagwiritsidwa ntchito.

7. Nthawi yokhala

Osagwiritsa ntchito nthawi yayitali yosungira kuti mupewe kuchepa kwa thupi, ndipo yesetsani kupewa kutentha pamwamba pa 300 ℃.Ngati kuyimitsa sikudutsa mphindi 15, chitani chithandizo chowombera mpweya;ngati kuposa mphindi 15, ndiye kuyeretsa ndi mamasukidwe akayendedwe PE, ndi kusiya yamphamvu kutentha kwa PE kutentha, mpaka kuyambiransoko.

8. Njira zodzitetezera

Zinthu zobwezeretsanso sizingakhale zazikulu kwambiri, mwinamwake, zosavuta kutulutsa mu "mlatho" wakuthupi ndikukhudza plasticizing;
Ngati kutentha kwa nkhungu sikuli bwino, kapena kutentha kwa zinthu sikuli koyenera, kosavuta kutulutsa "chifunga choyera" ndi opaque;kutentha nkhungu ndi otsika ndi yunifolomu, kudya kuzirala liwiro, zochepa crystallization, ndiye mankhwala mandala.

Huangyan Leiao Molding Co., Ltd. ili mumzinda wa Huangyan District mold, Taizhou, m'chigawo cha Taizhou, chomwe ndi "tawuni yaku China mold".Kampaniyi imagwira ntchito kwambiri pakupanga nkhungu ya jekeseni, ili ndi zaka zambiri za nkhungu, makamaka kupanga ndi kukonza nkhungu ya botolo, nkhungu ya PET, nkhungu ya botolo, mkati mwa galimoto ndi nkhungu yokongoletsera kunja… … nkhungu dongosolo ali ndi mapangidwe ake apadera ndi processing luso, zochokera lingaliro la "Umphumphu kasamalidwe", ndi makasitomala zoweta ndi akunja kukhazikitsa ubale wabwino wa nthawi yaitali mgwirizano, ndikukhulupirira kuti Leiao adzakhala oyenera chikhulupiriro chanu mu cooperative bizinesi.