Ngokwezindlela ezahlukene zezingxenye zepulasitiki zokubumba nokucubungula, zingahlukaniswa ngezigaba ezilandelayo:
·Isikhunta sokujova
Isikhunta sokujova sibizwa nangokuthi isikhunta sokujova.Inqubo yokubumba yalesi sikhunta ibonakala ngokubeka impahla eluhlaza epulasitiki emgqonyeni wokushisa womshini womjovo.Ipulasitiki iyashiswa futhi iyancibilika, futhi iqhutshwa yisikulufu noma i-plunger yomshini womjovo, ingena emgodini wesikhunta ngokusebenzisa i-nozzle kanye nesistimu yokukhipha isikhunta, futhi ipulasitiki yakheka emgodini wesikhunta ngokulondolozwa kokushisa, ukugcinwa kwengcindezi. , ukupholisa nokuqinisa.Njengoba idivayisi yokushisa nokucindezela ingasebenza ngezigaba, ukubunjwa komjovo akukwazi nje ukwakha izingxenye zepulasitiki ezinobunjwa obuyinkimbinkimbi, kodwa futhi kunokukhiqiza okuphezulu kanye nekhwalithi enhle.Ngakho-ke, ukubumba komjovo kuthatha ingxenye enkulu ekubunjweni kwezingxenye zepulasitiki, futhi isikhunta sokujova sithatha ngaphezu kwesigamu sokubumba kwepulasitiki.Imishini yokujova isetshenziselwa ikakhulukazi ukubumba ama-thermoplastics, futhi kancane kancane isetshenziselwe ukubumba amapulasitiki e-thermosetting eminyakeni yamuva.
· Isikhunta sokucindezela
Isikhunta sokucindezela sibizwa nangokuthi isikhunta sokucindezela noma isikhunta serabha.Inqubo yokubumba yalolu hlobo lwesikhunta ibonakala ngokungeza izinto zokusetshenziswa zepulasitiki ngqo emgodini wokubumba ovulekile, bese uvala isikhunta.Ngemuva kokuthi ipulasitiki isesimweni esincibilikisiwe ngaphansi kwesenzo sokushisa nokucindezela, i-cavity igcwele ingcindezi ethile.Ngalesi sikhathi, isakhiwo samangqamuzana epulasitiki sibhekana nokusabela okuxhumanisa amakhemikhali, kancane kancane siqina futhi sibumbe.Izibunjwa zokucindezelwa zisetshenziswa kakhulu kumapulasitiki e-thermosetting, futhi izingxenye zawo zepulasitiki ezibunjiwe zisetshenziswa kakhulu kuma-switch switch casings kanye nezidingo zansuku zonke.
Imodi yokudlulisa
Isikhunta sokudlulisa sibizwa nangokuthi isikhunta sokujova noma isikhunta se-extrusion.Inqubo yokubumba yalolu hlobo lwesikhunta ibonakala ngokungeza izinto zokusetshenziswa zepulasitiki ekamelweni lokudla elishisayo, bese ifaka ingcindezi ezintweni zokusetshenziswa zepulasitiki ekamelweni lokuphakela ngekholomu yokucindezela.Ipulasitiki iyancibilika ngaphansi kwezinga lokushisa eliphezulu kanye nokucindezela okukhulu futhi ingena emgodini ngokusebenzisa uhlelo lokuthulula lwesikhunta, bese kuba ukusabela okuxhumanisa i-Chemical cross-linking kwenzeka futhi kancane kancane kuqina futhi kwakhiwe.Inqubo yokubumba yokudlulisa isetshenziswa kakhulu kumapulasitiki e-thermosetting, angakha izingxenye zepulasitiki ezinobunjwa obuyinkimbinkimbi.
·Extrusion die
I-extrusion die nayo ibizwa ngokuthi i-extrusion head.Lesi sikhunta singaqhubeka sikhiqiza amapulasitiki anomumo ofanayo we-cross-sectional, njengamapayipi epulasitiki, izinduku, amashidi, njll. Idivayisi yokushisa nokucindezela kwe-extruder iyafana neyomshini womjovo.Ipulasitiki esesimweni esincibilikisiwe idlula ekhanda lomshini ukuze yakhe izingxenye zepulasitiki ezibunjiwe eziqhubekayo, futhi ukusebenza kahle kokukhiqiza kuphezulu kakhulu.
·Ngaphezu kwezinhlobo zezibungu zepulasitiki ezibalwe ngenhla, kuphinde kube nezikhunta ezifunxayo, isikhunta somoya esicindezelwe, isikhunta esivuthelayo, kanye nezikhunta zepulasitiki ezinamagwebu amancane.
Isikhathi sokuthumela: Feb-08-2023