Kukho iindlela ezininzi zokwahlula iimoto zeplastiki zokubumba, ngokweendlela ezahlukeneyoiindawo zeplastikiukubumba kunye nokucubungula, zinokwahlulwa zibe ziindidi ezilandelayo.
1 – Isitofu ngundo
Inkqubo yokubumba ye-injection mold ibonakaliswe ngokubeka izinto zeplastiki kwi-barrel evuthayo yomshini wokutofa. Iplastiki iyafudunyezwa kwaye inyibilike, ityhalwe sisikrufu somatshini wokutofa okanye i-plunger, kwaye ingene kumgodi wokungunda ngombhobho kunye nenkqubo yokugalela yokungunda, kwaye iplastiki iyanyangwa kumgodi wokungunda ngokugcina ubushushu, ukugcinwa koxinzelelo, kunye nokupholisa. Ekubeni isixhobo sokufudumeza kunye noxinzelelo sinokusebenza ngezigaba,isitofu sokubumbaayinakubumba kuphela iinxalenye zeplastiki ezintsonkothileyo, kodwa zikwanemveliso ephezulu kunye nomgangatho olungileyo. Ke ngoko, ukubunjwa kwenaliti kuthatha indawo enkulu kwiindawo zeplastiki zokubumba, kwaye iinaliti zokubumba zibalelwa ngaphezu kwesiqingatha sokubumba iplastiki. Umatshini wokubumba inaliti usetyenziselwa ukubumba i-thermoplastics, kodwa kwiminyaka yakutshanje ikwasetyenziselwa ukubumba iiplastiki ze-thermosetting.
2-Compression mold
Iimolds zokucinezela zikwabizwa ngokuba yi-rubber molds ecinezelweyo. Inkqubo yokubumba yale mold ibonakaliswe ngokudibanisa izinto eziluhlaza zeplastiki ngokuthe ngqo kwindawo evulekileyo yokubumba, emva koko ivale i-mold, emva kokuba iplastiki ityhidiwe phantsi kwesenzo sobushushu kunye noxinzelelo, igcwalisa i-cavity ngoxinzelelo oluthile. Ngeli xesha, i-molecular structure yeplastiki ivelisa i-chemical cross-linking reaction, kwaye ngokuthe ngcembe iqinisa kwaye ibeka imilo. Umngundo wokunyanzeliswa usetyenziswa kakhulu kwiiplastiki ze-thermosetting, kwaye iindawo zayo zeplastiki ezibunjiweyo zisetyenziswa kakhulu kwiqokobhe lokutshintsha kombane kunye neemfuno zemihla ngemihla.
3-Ukudluliselwa ngundo
Ugqithiso lokungunda lukwabizwa ngokuba yi-extrusion mold. Inkqubo yokubumba yale mbumba ibonakaliswe ngokudibanisa izinto zeplastiki kwigumbi lokuzalisa ngaphambili, kwaye emva koko ifake uxinzelelo kwizinto zeplastiki kwigumbi lokuzalisa ngekholomu yoxinzelelo, iplastiki iyanyibilika phantsi kobushushu obuphezulu kunye noxinzelelo kwaye ingene emngxunyeni ngokugalela. inkqubo yokungunda, kwaye ke imichiza cross-linking kwenzeka kwaye ngokuthe ngcembe uphilisa. Inkqubo yokubumba yokudlulisa isetyenziswa kakhulu kwiiplastiki ze-thermosetting kwaye inokubumba iindawo zeplastiki ezinemilo enzima.
4 – Extrusion Die
I-Extrusion die ikwabizwa ngokuba yi-extrusion head. Oku kufa unako ngokuqhubekayo ukuvelisa iiplastiki ezinemilo efanayo ye-cross-sectional, njengemibhobho yeplastiki, iintonga, amaphepha, njl. Iplastiki ekwimeko etyhidiweyo idlula entloko ukuze yenze ukuhamba ngokuqhubekayo kwamalungu eplastiki ebunjiweyo, kwaye ukusebenza kakuhle kwemveliso kuphezulu kakhulu.
Ukongeza kwezi ntlobo zidwelisiweyo ngasentla zokubumba zeplastiki, kukwakho nokubumba okufunxayo, ukubumba umoya ocinezelweyo, ukuvuthela ukubumba okubumbayo, ukubumba kweplastiki enogwebu oluphantsi, njl.
Ixesha lokuposa: Sep-07-2022
