Ngokwendlela yokwenza i-parison, ukubunjwa kwe-blow kungahlukaniswa ku-extrusion blow molding kanye nokubunjwa kwe-injection blow.Ezisanda kuthuthukiswa zihlanganisa ukubunjwa kwe-multi-layer blow and stretch blow molding.Uyini umehluko phakathi kwalezi zakhiwo ezimbili?
I-Extrusion, eyaziwa nangokuthi i-extrusion blow molding, iyindlela yokusebenzisa i-extruder (i-extruder) ukuze idlulise i-resin eshisayo ngokulandelana kwe-die ukuze ikhiphe umkhiqizo womumo oyifunayo.I-Extrusion ibuye isetshenziswe ngezinye izikhathi ekubunjweni kwama-thermosets futhi ingasetshenziswa ekubunjweni kwamapulasitiki anegwebu.
Inzuzo ye-extrusion blow molding ukuthi ingakhipha imikhiqizo ehlukahlukene, ngokusebenza kahle kokukhiqiza okuphezulu, futhi ingaba ukukhiqizwa okuzenzakalelayo nokuqhubekayo;okubi ukuthi amapulasitiki e-thermosetting awakwazi ukucutshungulwa ngokujwayelekile ngale ndlela, futhi usayizi womkhiqizo uthambekele ekuthambekeni.
Ukubunjwa komjovo kwaziwa nangokuthi ukubumba ukushaywa komjovo.Ukubumba umjovo kuyindlela yokusebenzisa umshini wokubumba umjovo (noma umshini womjovo) ukuze ujove incibilike ye-thermoplastic ibe isikhunta ngaphansi kwengcindezi ephezulu, bese upholisa futhi uqine ukuze uthole umkhiqizo.Ukubunjwa komjovo nakho kungasetshenziselwa ukubumba ama-thermosets namagwebu.
Izinzuzo zokubunjwa komjovo ukuthi isivinini sokukhiqiza siyashesha, ukusebenza kahle kuphezulu, ukusebenza kungenziwa ngokuzenzakalelayo, futhi kungenza izingxenye ezinobunjwa obuyinkimbinkimbi, ezifanele ikakhulukazi ukukhiqizwa okuningi.Okubi ukuthi izindleko zemishini kanye nesikhunta ziphezulu, futhi ukuqedwa kwemishini yokubumba umjovo kunzima.
Ukubumba i-Blow kubizwa nangokuthi ukubumba okungenalutho noma ukubumba okungenalutho.I-Blow molding iyindlela yokungenisa umoya i-hot resin parison evalwe esikhunjeni ibe umkhiqizo ongenalutho ngokusebenzisa ingcindezi yomoya ocindezelweyo.Ukubumba i-Blow kuhlanganisa izindlela ezimbili zokufutha ifilimu kanye nemikhiqizo engenalutho.Imikhiqizo yefilimu, amabhodlela ahlukahlukene, imiphongolo, izimbiza namathoyizi ezingane ingakhiqizwa ngokubunjwa kokushaywa.
Isibonelo, kungani ibhodlela lingasebenzisa inqubo yokubumba kuphela, kodwa lingasebenzisa ukubumba umjovo?Isizathu siwukuthi isikhala sangaphakathi sebhodlela sikhulu futhi umlomo webhodlela mncane, ngakho-ke umjovo wokubumba umjovo awukwazi ukukhishwa.Ngakho-ke, abakhiqizi bokubumba bavuthela isangweji ipulasitiki ethambile iyancibilika phakathi kwesikhunta futhi uyivuthele ukuze inamathele odongeni lwangaphakathi lwesikhunta ngaphandle kokusebenzisa umongo.
Isikhathi sokuthumela: Nov-21-2023