Iimpawu zenkqubo yokubumba ejikelezayo

Inkqubo yokubumba ejikelezayo ikwabizwa ngokuba kukubumba okujikelezayo, ukubumba okujikelezayo.Yindlela yokubumba engenanto ye-thermoplastic.
Ukubumba okujikelezayo yinkqubo eneenjongo ezininzi yokwenza iindawo ezahlukeneyo zeplastiki ezingenanto.Inkqubo yokubumba ejikelezayo isebenzisa ukufudumeza kunye nokujikeleza kunye neentsimbi ezimbini ukuvelisa iindawo ezingenanto enye.Iplastiki etyhidiweyo itofwa kumngundo ojikelezayo, kwaye amandla asecentrifugal anyanzela iplastiki etyhidiweyo ukuba ibambelele kudonga lwangaphakathi lomngundo.
Oko kukuthi, i-powder okanye incama yezinto ifakwe kwi-mold kuqala, kwaye imathiriyeli igqunywe ngokulinganayo kunye ne-mold cavity kwaye inyibilika ngamandla ayo kunye namandla e-centrifugal ngokufudumeza ukungunda kunye nokuqengqeleka kunye nokujikeleza kwinqanaba elithe nkqo nelithe tye. , kwaye emva koko idilizwe ukufumana iimveliso ezingenanto emva kokupholisa.Ngenxa yokuba isantya esijikelezayo sokubumba esijikelezayo asiphezulu, izixhobo zilula, imveliso iphantse ingabi naxinzelelo lwangaphakathi, kwaye akukho lula ukukhubaza kunye ne-sag.Ekuqaleni, yayisetyenziselwa iPVC yokuncamathelisa imveliso yeplastiki yeethoyi, iibhola zerabha, iibhotile kunye nezinye iimveliso ezincinci.Kutshanje, ikwasetyenziswa ngokubanzi kwiimveliso ezinkulu.Iireyini ezisetyenzisiweyo ziquka i-polyamide, i-polyethylene, i-polystyrene polycarbonate eguquliweyo, njl.
Kuyafana nokuphosa okujikelezayo, kodwa izinto ezisetyenzisiweyo azikho ulwelo, kodwa i-sintered dry powder.Inkqubo kukubeka umgubo kwi-mold kwaye wenze ukuba ujikeleze ngeenxa zonke kwii-axes ezimbini ezihambelanayo.Imveliso engenanto inokufumaneka kwi-mold ngokufudumeza kunye nokudibanisa ngokufanayo kwindonga yangaphakathi yokubumba, kwaye emva koko ipholile.
Ikwabizwa ngokuba kukubumba okujikelezayo okanye ukubumba okujikelezayo.Iplastiki yepowder (efana ne-LLDPE) yongezwa kwi-mold evaliweyo.Umngundo ushushu ngelixa ujikeleza.Iplastiki iyanyibilika kwaye ibambelele kumphezulu womgodi wokungunda ngokulinganayo.Emva kokuba i-mold ipholile, iimveliso zeplastiki ezingenanto ezinemilo efanayo kunye nomgodi wokubumba zingafumaneka, njengezikhephe, iibhokisi, imiphanda, izitya, iitoti, njl. ukucoca ngundo kunye namanye amanyathelo asisiseko.Le ndlela ineenzuzo ze-shrinkage encinci, ulawulo olulula lobunzima bodonga kunye neendleko eziphantsi zokubumba, kodwa ukuveliswa kwemveliso ephantsi.

Iimpawu eziphambili zenkqubo yokubumba ejikelezayo zezi zilandelayo:

I-1.Ixabiso le-mold ejikelezayo liphantsi - kwiimveliso zobukhulu obufanayo, iindleko zokubumba ezijikelezayo malunga ne-1 / 3 ukuya kwi-1 / 4 ye-blow molding kunye ne-injection molding, efanelekileyo ukubumba iimveliso zeplastiki ezinkulu.

2.Ukubumba okujikelezayo kokuqina kwemveliso kulungile - ukubumba okujikelezayo kunokufezekisa ubukhulu bemveliso engaphezulu kwe-5 mm, ukusombulula ngokupheleleyo ingxaki yomgca wemveliso ongenanto.

3.Ukubumba okujikelezayo kunokubeka izifakelo ezahlukeneyo.

I-4.Imilo yeemveliso zokubumba ezijikelezayo zinokuba nzima kakhulu, kwaye ubukhulu bunokuba ngaphezu kwe-5 mm.

I-5.Ukubumba okujikelezayo kunokuvelisa iimveliso ezivaliweyo ngokupheleleyo.

I-6.Iimveliso zokubumba ezijikelezayo zinokuzaliswa ngezinto ezinogwebu ukuphumeza ukugquma kwe-thermal.

I-7.Ubukhulu bodonga lweemveliso zokubumba ezijikelezayo zinokulungiswa ngokukhululekile (ngaphezu kwe-2mm) ngaphandle kokulungelelanisa ukubunjwa.