Iimathiriyeli zokuSebenza eziQhelekileyo
Uluhlu olubanzi lwezinto ezisetyenziswayo kwinkqubo ye-extrusion. Apha sinokuthatha umzekelo wenkqubo ye-PVC extrusion. Ezinye izixhobo ze-polyethylene, i-acetal, i-nylon, i-acrylic, i-polypropylene, i-polystyrene, i-polycarbonate, kunye ne-acrylonitrile. Ezi zixhobo eziphambili ezisetyenziselwa inkqubo yokukhupha. Nangona kunjalo, inkqubo ayiphelelanga kwezi zixhobo.
Ulwazi olusisiseko lweinkqubo yeplastiki extrusion
Inkqubo yeplastiki ye-extrusion iya kuqala ngokutshintsha i-resin eluhlaza. Okokuqala, yibeke kwi-hopper ye-extruder. Xa i-resin ingenazo izongezo zezinye izicelo ezithile, izongezo zongezwa kwi-hopper. Emva kokubekwa, i-resin yondliwa kwi-port ye-hopper, kwaye ingena kwi-barrel ye-extruder. Kukho isikrufu esijikelezayo emgqomeni. Oku kuya kondla i-resin, eya kuhamba ngaphakathi kwi-barrel ende.
Ngethuba le nkqubo, i-resin ibonakaliswe kumaqondo aphezulu okushisa. Amaqondo obushushu aphezulu anokunyibilika izinto. Kuxhomekeka kwiqondo lobushushu lombhobho kunye nodidi lwe-thermoplastic, iqondo lobushushu linokwahluka ukusuka kuma-400 ukuya kuma-530 ngokukaFahrenheit. Ukongeza, ii-extruders ezininzi zine-barrel eyandisa ubushushu ukusuka ekulayisheni ukuya ekutyeni ukuya ekunyibilikeni. Yonke inkqubo inciphisa umngcipheko wokuthotywa kweplastiki.
Iplastiki yayiza kunyibilika kwaye ifike ekupheleni kombhobho, apho yayiza kucinezelwa ityhubhu yokutya ngesihluzo kwaye ekugqibeleni ife. Ngexesha lenkqubo yokukhupha, izikrini ziya kusetyenziswa ukususa ukungcola kwiplastiki etyhidiweyo. Inani lezikrini, i-porosity yezikrini kunye nezinye izinto zilawulwa ukuqinisekisa ukunyibilika okufanayo. Ukongeza, uxinzelelo lwangasemva lunceda ekunyibilikeni okufanayo.
Nje ukuba izinto ezityhidiweyo zifikelele kwityhubhu yokutya, iya kundliwa kwi-mold cavity. Ekugqibeleni, iyaphola kwaye iqine ukwenza imveliso yokugqibela. Iplastiki esandula ukwenziwa inebhafu yamanzi evaliweyo ukukhawulezisa inkqubo yokupholisa. Nangona kunjalo, ngexesha lokukhutshwa kwephepha, ukuhlamba kwamanzi kuya kutshintshwa yimiqulu epholileyo.
Amanyathelo aphambili einkqubo yokukhutshwa kombhobho weplastiki
Njengoko kukhankanyiwe ngaphambili, inkqubo yeplastiki ye-extrusion ivelisa iindidi ezininzi zeemveliso ezivela kwizinto zokwakha ukuya kwiindawo zoshishino, iindawo ezivaliweyo zombane, iifreyimu zefestile, i-edging, i-weatherstripping kunye nocingo. Nangona kunjalo, inkqubo yokwenza zonke ezi mveliso zahlukeneyo ziya kufana kunye nomahluko omncinci. Kukho iindlela ezininzi zokungena kwimibhobho yeplastiki.
Mukunyibilika kwe-aterial
Imathiriyeli ekrwada ebandakanya iigranules, umgubo okanye iigranules ziya kulayishwa kwihopper. Emva koko, izinto eziphathekayo zondliwa kwigumbi elifudumeleyo elibizwa ngokuba yi-extruder. Izinto eziphathekayo ziyancibilika njengoko zidlula kwi-extruder. Ii-extruders zineebholithi ezimbini okanye enye.
Ukuhluzwa kwezinto
Emva kokuba izinto zinyibilikile, inkqubo yokucoca iya kuqala. Imathiriyeli enyibilikisiweyo iya kumpompoza ukusuka kwihopper ukuya emqaleni ukuya kwisikrufu esijikelezayo esisebenza ngaphakathi kwi-extruder. Isikrufu esijikelezayo sisebenza kumbhobho othe tyaba apho izinto ezinyibilikisiweyo ziyakuhluzwa ukufumana ukufana okufanayo.
Ukumisela imilinganiselo yezinto ezityhidiweyo
Iimpawu zezinto zeplastiki ziyahluka ngokuxhomekeke kwizinto ezisetyenziswayo kwinkqubo. Nangona kunjalo, zonke izinto eziluhlaza ziphathwa ngobushushu. Ezi zixhobo ziya kuboniswa kubushushu obugqithisileyo kumaqondo obushushu athile. Amanqanaba obushushu aya kuhluka ngokuxhomekeke kwizinto eziluhlaza. Ngethuba lokugqitywa kwenkqubo, iplastiki etyhidiweyo iya kutyhalwa ngokuvuleka okubizwa ngokuba yi-mold. Ibumba imathiriyeli ibe yimveliso yokugqibela.
Post processing
Kweli nyathelo, i-die cut yeprofayile iya kuyilwa ukuba ibe nokuhamba okulinganayo kunye nokugudileyo ukusuka kwiprofayili ye-cylindrical ye-extruder ukuya kwimilo yeprofayili yokugqibela. Kuyafaneleka ukukhankanya ukuba ukuze ufumane iimveliso ezithembekileyo neziphezulu, ukuhambelana kokuhamba kweplastiki kubaluleke kakhulu.
Mukupholisa emoyeni
Iplastiki iya kukhutshwa kwi-mold kwaye ihanjiswe ngebhanti ukuze ipholile. Olu hlobo lwebhanti lubizwa ngokuba yibhanti yokuhambisa. Emva kwesi sinyathelo, imveliso yokugqibela ipholiswa ngamanzi okanye ngomoya. Kuyafaneleka ukukhankanya ukuba inkqubo iya kufana nokubumba inaliti. Kodwa umahluko kukuba iplastiki etyhidiweyo icudiswa ngumngundo. Kodwa ekubunjweni kwesitofu, inkqubo yenzeka ngokubumba.
Ixesha lokuposa: Jul-20-2023
