Izinqubo Zokubumba Ezithathu
Enqubweni yokukhiqiza ye ibhodlela lezimonyo lepulasitikiIzitsha, ungase uvame ukuzwa amagama ochwepheshe afana nokubumba i-extrusion blow (EBM), ukubumba i-injection stretch blow (ISBM), kanye nokubumba i-injection blow (IBM). Lesi sihloko sichaza kafushane umehluko phakathi kwalezi zinqubo ezintathu kanye nemikhiqizo ehlobene nabaphathi bemikhiqizo:
Ukwakheka kwe-extrusion blowing kwe- ibhodlela lezimonyo lepulasitikikuyindlela yokukhiqiza izingxenye ze-thermoplastic ezingenalutho. Izinto zokubumba ezidumile zifaka amabhodlela, amabhakede, amathini, amabhokisi, nazo zonke izitsha zokupakisha ukudla, iziphuzo, izimonyo, imithi, kanye nezidingo zansuku zonke. Izitsha ezinkulu zokubumba ezivuthayo zivame ukusetshenziselwa ukupakisha imikhiqizo yamakhemikhali, izinto zokugcoba, kanye nezinto eziningi. Izindleko zokucubungula kule nqubo ziphakathi, kanti izindleko zeyunithi ziphansi. Imikhiqizo ejwayelekile isetshenziselwa kakhulu ukupakisha izitsha zomkhiqizo wamakhemikhali, ukupakisha izitsha zomkhiqizo wabathengi, kanye nokupakisha izitsha zemithi. Zifanele kuphela ukukhiqizwa okukhulu, ngekhwalithi ephezulu, ubukhulu bodonga obufanayo, kanye nokwelashwa kwendawo efanele ukuqedwa okubushelelezi, okuqandisiwe, nokuthungwa.
Inqubo yokubumba umjovo we-injection blow ibhodlela lezimonyo lepulasitikiOkokuqala kufakwa ipulasitiki encibilikisiwe esikhumbeni somjovo ukuze kwakhiwe ibhodlela elingenalutho. Ibhodlela elingenalutho libe selikhiwa esikhumbeni esingenalutho esingenalutho esinezimbobo ezincane eceleni. Okulandelayo, lithuthelwa esikhumbeni somjovo ngenkathi lisashisa. Ngemuva kwalokho, isikhunta siyavalwa bese umoya ocindezelwe ungeniswa ngepayipi lenduku eyinhloko ukuze kuqhunyiswe ibhodlela elingenalutho futhi linamathele odongeni lwesikhunta. Ekugcineni, ngemva kokubamba ingcindezi nokupholisa, umoya ocindezelwe uyakhululwa bese isikhunta sivulwa ukuze kususwe ingxenye yepulasitiki. Ifanele kuphela ukukhiqizwa okukhulu, ngekhwalithi ephezulu, ubukhulu bodonga obufanayo, kanye nokwelashwa kwendawo efanele ukuqedwa okubushelelezi, okuqandisiwe, nokuthungwa.
Ukubumba kokwelula kokufakwa komjovo ibhodlela lezimonyo lepulasitiki, eyaziwa nangokuthi i-ISBM, iqala ngokusebenzisa umshini wokubumba umjovo ukufaka ibhodlela elingenalutho, elibe selinwetshwa ngobude bese lifuthwa ngomoya ocindezelwe ukuze linwetshwe ngohlangothi, okuholela kumkhiqizo onesimo esifanayo nesikhala sesikhunta. Ngokwenqubo yokubumba umkhiqizo, ungahlukaniswa ube yi-ISBM yesinyathelo esisodwa kanye ne-ISBM yesinyathelo ezimbili.
Ngaphezu kwalezi zinqubo ezintathu ezivamile zokubumba amagalelo ibhodlela lezimonyo lepulasitikiIzinto zokupakisha zesitsha, kukhona nokubumba ngomjovo, ukubumba ngokucindezela, kanye nokwenza i-vacuum. Esikhathini esizayo, sizokwethula amaphuzu olwazi oluhlobene nezinto zokupakisha ukuze ubhekisele kuzo lapho ufunda ngemikhiqizo yezinto zokupakisha zobuhle, kanye nokwenza kube lula ukuxhumana okuphumelelayo nensizakalo yethu yamakhasimende uma uthenga izinto zokupakisha esikhathini esizayo.