Ngokweendlela ezahlukeneyo zokubumba kunye nokusebenza kweplastiki, inokwahlulwa ngokwezi ndidi zilandelayo:
· Isitofu sokungunda
Isitofu sokungunda sikwabizwa ngokuba ngumngundo wokutofa.Inkqubo yokubumba yale mold ibonakaliswe ngokubeka izinto zeplastiki eluhlaza kwi-barrel yokufudumala yomshini wokutofa.Iplastiki iyafudunyezwa kwaye inyibilike, kwaye iqhutywa sisikrufu okanye i-plunger yomatshini wokutofa, ingena kumngxuma wokungunda nge-nozzle kunye nenkqubo yokungena yokubumba, kwaye iplastiki yenziwa kwindawo yokubumba ngokugcina ubushushu, ukugcinwa koxinzelelo. , ukupholisa kunye nokuqina.Ekubeni isixhobo sokufudumeza kunye nokucofa sinokusebenza ngezigaba, ukubunjwa kwenaliti akunakwenza kuphela iinxalenye zeplastiki ezinemilo enzima, kodwa kunomgangatho ophezulu wokuvelisa kunye nomgangatho omhle.Ke ngoko, ukubunjwa kwenaliti kuthatha indawo enkulu ekubunjweni kwamalungu eplastiki, kwaye iinaliti zokubumba zibalelwa ngaphezulu kwesiqingatha sezinto zokubumba zeplastiki.Oomatshini bokutofa basetyenziselwa ukubumba i-thermoplastics, kwaye ngokuthe ngcembe baye basetyenziselwa ukubumba iiplastiki ze-thermosetting kwiminyaka yamuva.
· Uxinzelelo lokungunda
I-compression mold ikwabizwa ngokuba yi-compression mold okanye i-rubber mold.Inkqubo yokubumba yolu hlobo lokubumba lubonakaliswe ngokudibanisa izinto zeplastiki ekrwada ngokuthe ngqo kwindawo evulekileyo yokubumba, kwaye emva koko uvale ukubumba.Emva kokuba iplastiki ikwimeko etyhidiweyo phantsi kwesenzo sobushushu kunye noxinzelelo, i-cavity igcwele uxinzelelo oluthile.Ngeli xesha, i-molecular structure yeplastiki ifumana i-chemical cross-linking reaction, ngokuthe ngcembe iqina kunye nokubunjwa.Iimolds zoxinzelelo zisetyenziswa kakhulu kwiiplastiki ze-thermosetting, kwaye iindawo zazo zeplastiki ezibunjiweyo zisetyenziswa kakhulu kwii-casings zombane kunye neemfuno zemihla ngemihla.
Imo yokutshintshela
Ugqithiso lokungunda lukwabizwa ngokuba yinaliti yokungunda okanye i-extrusion mold.Inkqubo yokubumba yolu hlobo lokubumba ibonakaliswe ngokudibanisa izinto eziluhlaza zeplastiki kwigumbi lokutyisa elifudumalayo, kwaye emva koko ifake uxinzelelo kwizinto eziluhlaza zeplastiki kwigumbi lokutya ngekholomu yoxinzelelo.Iplastiki inyibilika phantsi kobushushu obuphezulu kunye noxinzelelo oluphezulu kwaye ingena emngxunyeni ngenkqubo yokugalela ukungunda, kwaye emva koko i-Chemical cross-linking reaction yenzeke kwaye ngokuthe ngcembe iqina kunye neefom.Inkqubo yokubumba yokudluliselwa isetyenziswa kakhulu kwiiplastiki ze-thermosetting, ezinokuthi zenze iinxalenye zeplastiki ezinemilo enzima ngakumbi.
·Extrusion die
I-extrusion die ikwabizwa ngokuba yintloko ye-extrusion.Lo ngundo unokuqhubeka nokuvelisa iiplastiki ezinobumba obunqamlezayo obufanayo, njengemibhobho yeplastiki, iintonga, amaphepha, njl njl. Isixhobo sokufudumeza kunye noxinzelelo lwe-extruder siyafana naso somatshini wokutofa.Iplastiki ekwimeko etyhidiweyo idlula kwintloko yomatshini ukwenza iinxalenye zeplastiki ezibunjiweyo eziqhubekayo, kwaye ukusebenza kakuhle kwemveliso kuphezulu kakhulu.
·Ukongeza kwiintlobo zokubumba zeplastiki ezidweliswe ngentla apha, kukwakho nezinto zokubumba ezifunxayo, izixokelelwano zomoya ezicinezelekileyo, ukubumba okubumba ukuvuthela, kunye nezibumba zeplastiki ezinogwebu oluphantsi.
Ixesha lokuposa: Feb-08-2023