Selelekela sa Polymer Extrusion

Plastics extrusion ke ts'ebetso e phahameng ea tlhahiso eo ho eona polasetiki e tala e qhibilihang ebe e etsoa profil e tsoelang pele…

Extrusion e sebelisoa haholo liindastering tse fapaneng.Tekong ena, re etsa lipatlisiso ka extrusion ea polasetiki ka screw extruder.Li-extruder tse joalo li atile haholo indastering ea polasetiki.

Ho Etsahala'ng ka Extruder?

The screw in the extruder rotating and develops enough pressure to force the material to gothrough die le ho hlahisa dihlahiswa ka geometry e lakatsehang.

Likarolo tsa Extruder

Ho na le likarolo tse hlano tsa mantlha ho extruder: screw, extruder drive, barrel, feed hopper, le die.Pelo ea extruder ke sekoti sa helical se thusang ho tsamaisa, ho futhumatsa, ho qhibiliha le ho kopanya polasetiki.Extruder drive ke enjene ea motlakase e fanang ka matla a ho potoloha screw.Ho tsitsa le boleng ba lihlahisoa ho itšetlehile haholo ka moralo oa screw.Sekurufu se behiloe ka har'a moqomo oa extruder o fanang ka matla a ho futhumatsa le a ho pholisa.Thepa e tala e fanoa ho tsoa ho hopper ea phepelo e hokahaneng le moqomo ka 'metso oa phepelo.Hopper ea phepelo e etselitsoe ho tšoara li-pellets tsa polasetiki le ho netefatsa phallo e tsitsitseng ea li-pellets ka har'a moqomo.Lefu le fumaneha ka ntle ho extruder mme le khetholla sebopeho sa sehlahisoa.Ho na le mefuta e mengata ea li-dies, ho kenyelletsa le li-tubing dies, filimi e bataletseng e shoa, le lifilimi tse fofang.Lab ena, re sebelisa "annular tubing die"Hlokomela hore boholo le sebopeho sa lihlahisoa tse fetisitsoeng ha li tšoane hantle le boholo le sebōpeho sa lefu ka lebaka la ho hula fatše, ho pholisa, ho ruruha le ho phomola ha polymer e ntšitsoeng.

Mela ea Extrusion

Ho phaella ho extruder, mokhoa oa extrusion o hloka lisebelisoa tse holimo le tse tlaase.Lisebelisoa tse kholo tsa mohala oa extrusion ke ho sebetsana le resin, sistimi ea ho omisa, extruder, post-shaping kapa calibrating sesebelisoa, sesebelisoa sa ho pholisa, sesebelisoa sa ho nka, le seha kapa sakha.Mohala oa extrusion lab ea rona o kenyelletsa extruder, take-off roller, le sejana sa metsi a pholileng.

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