Momwe mungasankhire pulasitiki extruder

Pamene ogwiritsa ntchito makina opangira jekeseni ndipo nkhungu, tiyenera mosalephera kugwiritsa ntchito pulasitiki extruder
Kusankhidwa kwa extruder makamaka kumatanthawuza zotsatirazi zaukadaulo:

Screw diameter amatanthauza m'mimba mwake akunja a screw thread. Yofotokozedwa ndi D, unit ndi mm
Chiyerekezo chautali ndi m'mimba mwake cha screw chimatanthawuza kuchuluka kwa kutalika kwa ulusi wopota mpaka m'mimba mwake., kufotokozedwa mu L/D.
Kuthamanga kwa screw kumatanthawuza chiwerengero chapamwamba kwambiri komanso chotsika kwambiri cha zosinthika pamene screw ikugwira ntchito
Mphamvu yagalimoto imatanthawuza mphamvu ya injini yomwe imayendetsa wononga kuti izungulire, yolembedwa ndi P
Kutentha kwa mipiringidzo kumatanthawuza mphamvu yamagetsi pamene mbiya imatenthedwa ndi kukana, unit ndi KW

Pankhani ya kasinthidwe komweko, zimatengera mtundu ndi kapangidwe kake

Ndi bwino kugula a makina kuyang'ana kukula ndi mphamvu ya fakitale. Ndikulakalaka makina abwino ndipo zida
2.Zoyenera kuchita ngati kutentha kwa doko lotulutsa la pulasitiki extruder ndikwambiri

Pali jekete lamadzi la mbiya pansi pa kutsegula kwa chakudya, cholowera chimodzi ndi china, makamaka kuteteza kutentha kwa mbiya kukhala kokwera kwambiri, kupanga chodabwitsa cholumikizira, ndipo pali ufulu woyika madzi ozungulira pa bokosi la gear yochepetsera. Ntchitoyi ndikuletsa Kutentha kwapamwamba kwambiri.
Ngati muli ndi pellet yotsika kwambiri, simuyenera kuwonjezera kutentha kwa hopper kwambiri, kotero kutentha kwa doko lotulutsa kudzatsikanso. Ngati zinthu sizikuyenda bwino, tikulimbikitsidwa kukhazikitsa chowongolera kutentha kwa nkhungu kuti kutentha kwa screw pakhale mtengo wokhazikika.

3.Chifukwa chiyani screw ya pulasitiki extruder yasweka?

Ndikofunikira kusanthula tsatanetsatane wa gawo losweka. Ngati pali thovu lachitsulo chabwino kapena matope achitsulo pafupi, zimayambitsidwa ndi kukangana kwa nthawi yayitali. Yang'anani ngati pali malo omwe mikangano ingachitike mozungulira. Ngati gawolo ndi loyera komanso latsopano, zikhoza Kuyamba chifukwa cha kulephera mwadzidzidzi.

4.Momwe mungawerengere kuchuluka kwa extrusion wa pulasitiki extruder

Kwa extruder, kaya ndi misala imodzi kapena misampha iwiri, mfundo ziwiri ziyenera kufotokozedwa pankhani ya mphamvu extrusion:
1. Theoretical malire extrusion
2. Voliyumu yeniyeni ya extrusion

Malire ongoyerekeza a extrusion amawerengedwa ndi screw geometry (chigawo chapakati cha danga lamkati la mbiya-mtanda-gawo la screw = gawo la gawo la wothamanga) ndiyeno kuchulukitsidwa ndi kutsogolera kwa chinthu chachikulu cha lead screw mu gawo lodyetsa. Ndi liwiro lalikulu la injini, zonse m'mayunitsi amitundu yonse, The anapezedwa m³/h ndi theoretical malire extrusion voliyumu pa liwiro limeneli.

Voliyumu yeniyeni ya extrusion sikuyenera kuwerengedwa. Nthawi zambiri, ndi metered feeding. Voliyumu ya extrusion ndi voliyumu yodyetsa yomwe mumayika. Ngati ndi njala kudya (Pamenepo, ndizosowa chifukwa kuchuluka kwa chakudya sikukhazikika mokwanira), imafunika kuphatikiza mawonekedwe a zinthuzo, monga ufa kapena pellets, ndi fluidity wa tinthu zolimba, ndi kapangidwe ka chipangizo chodyera Kukula kwake kumakhudzana, koma kawirikawiri extrusion voliyumu yeniyeni chakudya cholimba njala si upambana 80% wa theoretical limit extrusion volume

Pamene kupanga metering chakudya voliyumu, nthawi zambiri kumakhala koyenera kukhala 60% wa theoretical limit extrusion volume, ndipo palibe chifukwa chosinthira voliyumu ya chakudya mkati mwa liwiro linalake la alendo.

Ndikukhulupirira kuti zikhala zothandiza kwa aliyense, haha, Ndikufunirani zabwino.
Ngati muli ndi mafunso pa jekeseni akamaumba ,plz khalani omasuka kufunsa Gulu la FLYSE,tidzakupatsani utumiki wabwino kwambiri!