Ukukhutshwa kweplastiki yinkqubo apho iplastiki inyibilika kwaye yenziwe ibe yifom eqhubekayo.Le nkqubo isetyenziselwa ukuvelisa izinto ezinje ngombhobho, ukubiyela, iityhubhu, ukugqunywa kweengcingo, iifreyimu zefestile, kunye nentsimbi...
Ukwenziwa kwePlastiki kunye nokuVeliswa
Iiplastiki ziipholima ezinobunzima obuphezulu bemolekyuli.Iiplastiki ziqhelekile kwiimveliso ezininzi, ukusuka kwiimoto zangaphakathi ukuya kwimibhobho.Ukucutshungulwa kweplastiki kunye nokuveliswa kubandakanya amanyathelo amathathu asisiseko: 1) ukunika iimpawu ezithile kwii-resin zeplastiki ezinezongezo zekhemikhali, ezibandakanya i-lubricants, i-flame retardant agents, i-colorants kunye ne-plasticizers;2) ukuguqula imathiriyeli ekrwada (iigranuli zeplastiki, iipeliti, iishiti, ulwelo okanye iiplastiki ezenziwe ngaphambili) zibe zimilo eziphakathi okanye zokugqibela;kunye ne-3) ukugqiba imveliso ngokusebenzisa ukubumba / ukubumba iinkqubo, ezifana ne-injection molding okanye i-extrusion.Ukubumba isitofu kubandakanya ukufudumeza iigranuli okanye iipellets kwindawo yolwelo kunye noxinzelelo lokutofa iplastiki yolwelo kwizibungu ezibandayo zokusetwa.I-Extrusion ibandakanya ukutyhala imathiriyeli yeplastiki engamanzi ngedayidi ukudala iifom ezinde, eziqhubekayo, ezinjengemibhobho okanye iityhubhu.
Inkqubo eSisiseko yePlastiki Extrusion
Inkqubo isebenzisa i-resin yeplastiki, engamaso amancinane eplastiki, afakwe kwi-hopper kumgqomo oshushu we-extruder.Apho, isikrufu esijikelezayo, esijika ngokubanzi kwi-120 rpm, sityhala intlaka emgqomeni njengoko iqhele ukunyibilika naphi na ukusuka kwi-392 degrees ukuya kuma-527 degrees Fahrenheit, kuxhomekeke kwipolymer eyenziwe ngayo intlaka.Ukunceda ukunciphisa umngcipheko wokutshisa i-resin, ubushushu bunyuka ngokuthe ngcembe ukusuka kwelinye icala lombhobho ukuya kwelinye.
Ngaphambi kombhobho, kukho isikrini esityhalelwa kuso intlaka enyibilikisiweyo ukunceda ukuhluza nantoni na enokuthi yosulele intlaka.Nje ukuba intlaka enyibilikisiweyo ye-thermoplastic idlule kwiscreen, ityhubhu yokutya ithumela i-resin ngokufa okumile, ethi ke inike iprofayile yayo.
Le milo okanye iprofayili, inokwenziwa ngokuqhubekayo, nakuphi na ubude.
Ekugqibeleni, imveliso kufuneka ipholile.Oku ngokuqhelekileyo kwenziwa ngokuhlamba ngamanzi.Iplastiki ibamba ubushushu kakuhle, ngoko ke inkqubo yokupholisa ithatha ixesha elithile.Ngenxa yoku, ukuhlamba amanzi kuvame ukutywinwa kwaye i-vacuum isetyenziselwa ukugcina imveliso ingaphulukani nokumila kwayo ngelixa ipholile.
Ixesha lokuposa: Dec-04-2018