Zombini ezi nkqubo zisetyenziselwa ukwenza iindawo ezingenanto, ezingenamthungo kwiipholima ze-thermoplastic.Ukubumba okujikelezayo kungasetyenziselwa i-thermosets.Amacandelo ahluka ngobukhulu ukusuka kwiibhotile zeplastiki ezincinci ze-5 ml kuphela (0.15 oz) ukuya kwiidramu ezinkulu zokugcina ze-38,000 l (10,000 gal) umthamo.Nangona ezi nkqubo zimbini zikhuphisana kwiimeko ezithile, ngokubanzi ziye zafumana ezazo iindawo.Ukubumba ukuvuthela kulungele ngakumbi ukuveliswa kobunzima bezikhongozeli ezincinci ezilahlwayo, ngelixa ukubumba okujikelezayo kuthanda iimilo ezinkulu ezingenanto.
Ukubumba ukuvuthela yinkqubo yokubumba apho uxinzelelo lomoya lusetyenziselwa ukufunxa iplastiki ethambileyo kwindawo yokungunda.Yinkqubo ebalulekileyo yemizi-mveliso yokwenza inxalenye yeplastiki enomngxuma omnye eneendonga ezibhityileyo, ezinjengeebhotile kunye nezikhongozeli ezifanayo.Kuba uninzi lwezi zinto zisetyenziselwa iziselo zabathengi kwiimarike ezinkulu, imveliso ilungelelaniswe ngokwemiyinge ephezulu kakhulu.Itekhnoloji ibolekwe kwishishini leglasi apho iiplastiki zikhuphisana kwimarike yebhotile enokulahlwa okanye enokuphinda isetyenziswe.
Extrusion Vuthela Ukubumba.Olu hlobo lokubumba ukuvuthela luquka umjikelo oboniswe ngezantsi.Kwiimeko ezininzi, inkqubo ihlelwe njengomsebenzi ophezulu kakhulu wokuvelisa ukwenza iibhotile zeplastiki.Ulandelelwano luzenzekelayo kwaye ngokuqhelekileyo ludibaniswe nemisebenzi ephantsi efana nokuzaliswa kwebhotile kunye nokubhala.Kudla ngokuba yimfuneko ukuba isikhongozeli esivuthelweyo sibe ngqongqo, kwaye ukuqina kuxhomekeke kubunzima bodonga phakathi kwezinye izinto.
Isitofu Ukubumba Ukuvuthela.Kule nkqubo, i-parison yokuqala ifakwe inaliti kunokuba ikhutshwe.Ulandelelwano olwenziwe lula luchazwe apha ngezantsi.Xa kuthelekiswa nokhuphiswano olusekelwe kwi-extrusion, inkqubo yokubumba i-injection blowu inezinga eliphantsi lokuvelisa, elichaza ukuba kutheni lingasetyenziswanga kakhulu.
Kumahluko wokubumba ukuvuthela kwesitofu, okubizwa ngokuba kukubumba ukuvuthela, intonga evuthelayo iye ezantsi kwiparison ebunjiweyo ngexesha lenyathelo lesi-2, ngaloo ndlela yolula iplastiki ethambileyo kwaye idala uxinzelelo oluthandeka ngakumbi lwepolymer kunokubumba ukuvuthela kwesitofu esiqhelekileyo okanye ukubumba ukuvuthela kwe-extrusion. .Ulwakhiwo olunesiphumo luqina ngakumbi, lunokukhanya okuphezulu kunye nokuchasana kwempembelelo engcono.Izinto ezisetyenziswa kakhulu kwi-stretch blow molding yi-polyethylene terephthalate (PET), i-polyester ene-permeability ephantsi kakhulu kwaye iqiniswe yinkqubo yokubumba i-stretch-blow-molding.Ukudityaniswa kweepropati kwenza ukuba kube yinto efanelekileyo njengesitya se-carbonated drinks.
Izixhobo kunye neeMveliso.Ukubumba ukuvuthela kunqunyelwe kwi-thermoplastics.I-polyethylene yeyona ipholima isetyenziswa kakhulu ekubumbeni ukuvuthela;ngokukodwa, ukuxinana okuphezulu kunye ne-molecular weight polyethylene (HDPE kunye ne-HMWPE).Xa kuthelekiswa iipropati zabo kunye nezo zoxinaniso oluphantsi lwe-PE lunikwe imfuneko yokuqina kwimveliso yokugqibela, kunokonga ngakumbi ukusebenzisa ezi mathiriyeli zibiza kakhulu kuba iindonga zesikhongozeli zingenziwa zibe ncinci.Ezinye izinto zokubumba zenziwe nge-polypropylene (PP), i-polyvinylchloride (PVC), kunye ne-polyethylene terephthalate.
Izikhongozeli ezilahlwayo zokupakisha iimpahla zolwelo zabathengi zenza esona sabelo sikhulu seemveliso ezenziwe ngokubunjwa kokuvuthela;kodwa ayizizo kuphela iimveliso.Ezinye izinto ziquka imigqomo emikhulu yokuthumela (i-55 galoni) yolwelo kunye nomgubo, iitanki ezinkulu zokugcina (2000 galoni), iitanki zepetroli zemoto, iithoyi, kunye neenqwelo zeebhodi zeseyile kunye nezikhephe ezincinci.Kwimeko yokugqibela, izikhephe ezibini zesikhephe zenziwe ngendlela yokubumba enye kwaye emva koko zisikwe zibe ziingceba ezimbini ezivulekileyo.
Ixesha lokuposa: Mar-15-2016