1. Inkqubo yokubumba i-injection kunye ne-blow molding iyahluka.Ukubumba ukuvuthela kukutofa + ukuvuthela;ukubumba isitofu kukutofa + uxinzelelo;ukubumba ukuvuthela kufuneka intloko ishiywe ngumbhobho ovuthelayo, kwaye isitofu sokubumba kufuneka sibe necandelo leSango
2. Ngokubanzi, ukubumba inaliti ngumzimba osisiseko oqinileyo, ukubumba isivuthelo ngumzimba ongundoqo, kwaye inkangeleko yokubumba isivuthelo ayilingani.Ukubumba ukuvuthela kunezibuko elivuthelayo.
3. I-injection molding, oko kukuthi, ukubunjwa kwe-injection ye-thermoplastic, apho izinto zeplastiki ziyancibilika kwaye zifakwe kwi-cavity yefilimu.Nje ukuba iplastiki etyhidiweyo ingene kumngundo, ipholiswa ibeyimilo enjengomngxuma.Imilo ephumayo idla ngokuba yimveliso yokugqibela kwaye akukho kuphinda kuqhubeke kufunwa phambi kwesixhobo okanye kusetyenziswe njengemveliso yokugqibela.Iinkcukacha ezininzi, ezinje ngabaphathi, iimbambo, kunye neentambo, zinokuqulunqwa kumsebenzi wokubumba inaliti enye.Umatshini wokubumba inaliti unamacandelo amabini asisiseko: isixhobo sokutofa esinyibilikayo kwaye sondle iplastiki ekubunjeni, kunye nesixhobo sokubambelela.Isiphumo sesixhobo sokungunda si:
1. I-mold ivaliwe phantsi kwemeko yokufumana uxinzelelo lwe-injection.
2. Thatha imveliso kwisixhobo sokutofa ukuze unyibilikise iplastiki ngaphambi kokuba ifakwe kwi-mold, kwaye emva koko ulawule uxinzelelo kunye nesantya sokujova ukunyibilika kwi-mold.Kukho iintlobo ezimbini zezixhobo zokutofa ezisetyenziswayo namhlanje: i-screw pre-plasticizer okanye izixhobo zamanqanaba amabini, kunye ne-reciprocating screw.Izikrweqe zangaphambili zeplastiki zisebenzisa isikrufu sangaphambili sokwenza iplastikhi (inqanaba lokuqala) ukutofa iplastiki etyhidiweyo kwintonga yokutofa (inqanaba lesibini).Izibonelelo ze-screw pre-plasticizer zisemgangathweni wokunyibilika okuzinzileyo, uxinzelelo oluphezulu kunye nesantya esiphezulu, kunye nokulawulwa kwevolumu yenaliti echanekileyo (usebenzisa izixhobo zokutyhala ngoomatshini kuzo zombini iziphelo ze-piston stroke).
Ezi zibonelelo zifunekayo kwiimveliso ezicacileyo, ezibhityileyo kunye namazinga aphezulu emveliso.Ukungalungi kubandakanya ixesha lokuhlala elingalinganiyo (elikhokelela ekuthotyweni kwezinto), iindleko eziphezulu zezixhobo kunye neendleko zokuzilungisa.Ezona zixhobo zixhaphakileyo zisetyenziswayo eziphindaphindanayo zenaliti yesijirufu azifuni iplunger ukuze inyibilike kwaye itofwe iplastiki.
Ukubumba ukuvuthela:ekwabizwa ngokuba kukubumba umgongxo, ukubumba ukuvuthela, indlela yokulungisa iplastiki ephuhlayo.I-tubular parison yeplastiki efunyenwe nge-extrusion okanye isitofu sokubumba i-thermoplastic resin ifakwe kwi-mold edibeneyo ngelixa ishushu (okanye ishushu kwimo ethambileyo), kwaye umoya ocinezelweyo ungeniswa kwi-parison ngokukhawuleza emva kokuvala ukubumba ukuvuthela i-parison yeplastiki. .Yandisa kwaye inamathele ngokusondeleyo kudonga lwangaphakathi lwesikhunta, kwaye emva kokupholisa kunye nokudiliza, iimveliso ezahlukeneyo ezingenanto zifunyenwe.Inkqubo yokuvelisa ifilimu evuthelweyo ifana kakhulu nomgaqo wokuvuthela ukubunjwa kweemveliso ezingenanto, kodwa ayisebenzisi i-mold.Ngokombono wokuhlelwa kweteknoloji yeplastiki, inkqubo yokubumba ifilimu evuthelweyo idla ngokubandakanywa kwi-extrusion.Inkqubo yokubumba isivuthela yaqala ukusetyenziswa ukuvelisa izitya ze-polyethylene ezixineneyo ngexesha leMfazwe Yehlabathi yesiBini.Ngasekupheleni kwee-1950, kunye nokuzalwa kwe-polyethylene ephezulu kunye nokuphuhliswa koomatshini bokubumba, izakhono zokubumba zazisetyenziswa ngokubanzi.Umthamo wezikhongozeli ezingenanto unokufikelela kumawaka eelitha, kwaye enye imveliso yamkela ulawulo lwekhompyutha.Iiplastiki ezilungele ukubumba ukuvuthela zibandakanya i-polyethylene, i-polyvinyl chloride, i-polypropylene, i-polyester, njl.
Ixesha lokuposa: Jun-20-2023