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I-Extrusion Working Principe kanye ne-Process Parameters

I-Extrusionkuyinqubo yokukhiqiza umthamo omkhulu.Iipulasitikiimpahla iyancibilika ngokufakwa kokushisa futhi ...

I-Extrusion

I-Extrusion iyinqubo yokukhiqiza umthamo ophezulu.Impahla yepulasitiki iyancibilika ngokufakwa kokushisa futhi ikhishwe nge-die ibe yisimo oyifunayo.Isikulufu esijikelezayo esiyicylindrical sifakwa ngaphakathi emgqonyeni esiphoqa ukuthi kukhishwe impahla yepulasitiki encibilikisiwe ngedayizi.I-extruded material ibukeka ngokuhambisana ne-cross-section of die.

I-Extrusion

Isimiso Sokusebenza

Kule nqubo, izinto zepulasitiki ezisesimweni sama-pellets noma ama-granules amandla adonsela phansi asuka ku-hopper efakwe phezulu emgqonyeni.Izithasiselo ezifana nama-colorants nama-ultraviolet inhibitors (ifomu eliwuketshezi noma le-pellet) zingaxutshwa ku-hopper.Izinto zepulasitiki zingena ngomphimbo wokuphakelayo bese zihlangana nesikulufu esijikelezayo.Isikulufu esijikelezayo siphusha ubuhlalu bepulasitiki bubheke phambili emgqonyeni.Umgqomo ushiswa kusetshenziswa izinto zokushisa kuze kufike ekushiseni okuncibilika kwepulasitiki.Izakhi zokushisa zisetshenziswa ngezindlela ezikhulisa kancane kancane izinga lokushisa lomgqomo kusukela ngemuva kuya phambili.

Kunezindawo ezintathu ezingaba khona kusikulufu esijikelezayo okungukuthi indawo yokuphakelayo, indawo encibilikayo, nendawo yokukala.Endaweni yokudla, ubuhlalu bepulasitiki buncibilika kancane kancane njengoba buphushwa emgqonyeni.

Izinto zepulasitiki zincibilika ngokuphelele endaweni encibilikayo.I-thermostat isetshenziselwa ukugcina izinga lokushisa langaphakathi lomgqomo.Ukushisisa ngokweqile kwamapulasitiki kufanele kuncishiswe okungase kubangele ukuwohloka kwezakhiwo zezinto ezibonakalayo.Ifeni yokupholisa noma isistimu yokupholisa amanzi isetshenziselwa ukugcina izinga lokushisa lomgqomo phakathi nenqubo.

Ngaphambili komgqomo, ipulasitiki encibilikisiwe ishiya isikulufu futhi idlule ephaketheni lesikrini ukuze isuse noma yikuphi ukungcola kupulasitiki oncibilikile.Izikrini ziqiniswa yi-breaker plate.

I-breaker plate assembly iphinde isebenze ukudala ingcindezi emuva emgqonyeni.Ingcindezi yangemuva inika ukuncibilika okufanayo kanye nokuxubana okufanele kwempahla yepulasitiki encibilikisiwe emgqonyeni.Ngemva kokudlula epuleti le-breaker, ipulasitiki encibilikisiwe ingena kufa.Idayi linikeza umumo oyifunayo womkhiqizo wepulasitiki.Ukugeleza okungalingani kwepulasitiki encibilikisiwe kungaveza izingcindezi ezingafuneki emkhiqizweni wepulasitiki.Lezi zingcindezi zingabangela ukungqubuzana ngemva kokuqina kwepulasitiki encibilikisiwe.Amapulasitiki angama-insulators amahle kakhulu ashisayo ngakho-ke kunzima kakhulu ukupholisa ngokushesha.Umkhiqizo wepulasitiki upholiswa ngokudonsa ngesethi yamaroli okupholisa.

Amapharamitha wenqubo ye-Extrusion

Kunezinhlaka ezinhlanu ezibalulekile zenqubo okufanele zicatshangelwe ngaphambi kwenqubo ye-extrusion:

  1. Izinga lokushisa elincibilikayo lepulasitiki
  2. Isivinini se-screw
  3. Ingcindezi yokukhipha iyadingeka
  4. Izinhlobo zokufa ezisetshenzisiwe
  5. Imodi yokupholisa

 

 

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Isikhathi sokuthumela: Jan-10-2018