Kukho iinguqu kwinkqubo ye-extrusion ngokuxhomekeke kuluphi uhlobo lwe-extrusion eyenziwa.Nantsi ukujonga kwiindidi ezahlukeneyo ze-extrusion, kunye nokwahlukana kwenkqubo esisiseko nganye.
Iphepha Extrusion
I-Sheet extrusion, ekwaziwa ngokuba yifilim extrusion, isetyenziselwa ukwenza amaphepha eplastiki kunye neefilimu, kwaye iyahluka ngokubanzi kwinkqubo yesiseko ye-extrusion malunga nenkqubo yokupholisa.Kunokuba usebenzise ibhafu yamanzi ukupholisa imveliso egqityiweyo, amaphepha apholiswa ngokutsalwa ngothotho lwee-roller ezintathu ukuya kwezine.Ukongeza kokupholisa imveliso, ii-roller nazo zisetyenziselwa ukumisela ubukhulu bemveliso yokugqibela.
Ifilimu evuthelweyo Extrusion
I-extrusion yefilimu evuthelweyo isetyenziselwa ukwenza iimveliso ezinjengeengxowa zokuthenga zeplastiki.Inkqubo iyafana nenkqubo ye-extrusion esisiseko ukuya kuthi ga kwinqanaba le-resin ukuya kwi-die.Idayizi yicylinder ethe nkqo enembombo esetyhula.I-resin enyibilikisiweyo itsalwa phezulu ukusuka kwidayizi ngepere ye-nip rolls phezulu ngaphezulu kwedayizi.Ukutshintsha isantya sezi nip rollers kuya kutshintsha ubukhulu befilimu yeplastiki.Engqonge ifa kuhlala i-airflow based cooling ring, epholisa imveliso njengoko ihambela phezulu.Umoya uvuthelwa kwi-die, ukwandisa imveliso ekhutshiweyo.Le filim emva koko inokudityaniswa okanye iprintwe, isikwe ibe yimilo, okanye itywinwe ubushushu kwezinye iimveliso.
I-Tubing Extrusion
I-tubing extrusion isetyenziselwa ukwenza iimveliso ezinjengeendiza okanye iityhubhu yonyango.Inkqubo iyafana nenkqubo esisiseko ukuya kuthi ga kwi-resin ifikelele ekufeni.A pin (mandrel) ibekwe ngaphakathi die.I-resin enyibilikisiweyo ityhilwa kwi-die, isenza malunga ne-mandrel.Yile ndlela i-shape shape ye-tubing eyenziwa ngayo.Uxinzelelo lomoya lusetyenziselwa ukulinganisa ubukhulu betyhubhu.
Ezi zimbalwa zenkqubo esetyenziselwa ukukhutshwa kweplastiki.Inzuzo enkulu kuzo zonke ezi ntlobo zenkqubo yeplastiki ye-extrusion kukuba zinika uluhlu olubanzi lwamathuba ejometri ngaphezu kwezinye iifom zeplastiki zemveliso.Umahluko kwiimilo kunye nobukhulu obunokuveliswa mkhulu kakhulu, kunye nomda kuphela wokuba imveliso kufuneka ibe neprofayili eqhubekayo.
Ixesha lokuthumela: Jun-11-2017