Isingeniso Sokuklama
Imikhiqizo ebunjiwe isetshenziswa kabanzi ezimbonini ezahlukahlukene, ikakhulukazi embonini yokupakisha iziphuzo nezidakamizwa, kanye nasembonini yamathoyizi.
Yenza ukuguqulwa kuka-R emaphethelweni nasemakhoneni
Imvamisa, amakhona namakhona emikhiqizo ebunjwe ngokushaywa kufanele enziwe abe yinguquko engu-R, ngoba isilinganiso esikhulu sokunweba esivunguzayo emakhoneni abukhali kulula ukubangela ukushuba kodonga olungalingani, futhi amakhona abukhali nawo alula ukukhiqiza ukuqhekeka kwengcindezi, kanye noshintsho lwe-R. yemikhiqizo kungenza ukushuba odongeni imikhiqizo umfaniswano.
Khulisa ukwakheka kwesakhiwo ekucindezelweni, ukungezwani kanye ne-torsion
Ngezidingo ezahlukahlukene zomkhiqizo, ukwakheka okuthile kokucindezelwa, ukungezwani kanye ne-torsion nakho kungangezwa:
1. Uma ufuna ukukhulisa ukumelana ne-longitudinal yomkhiqizo, ungakha ama-stiffener ahambisana nesiqondiso sokucindezeleka.
2. Ukuze kuthuthukiswe ukusebenza kwemikhiqizo emelene nokuwohloka, indawo engaphezulu ingabuye iklanywe ibe yisakhiwo se-arc esihambisana nengcindezi futhi sihlanganiswe nezimbambo eziqinisayo.Ihlombe lemikhiqizo yamabhodlela kufanele lithambekele, lingabi flat futhi liqonde.
Ngokuvamile, ibhodlela eliphansi lenziwa libe yisimo se-concave ukwandisa amandla nokuzinza kokubeka.Isibonelo, sivamise ukubona amabhodlela aqukethe uwoyela odliwayo anomumo othize we-concave-convex ngaphezulu, angakwazi nje ukukhulisa amandla omzimba webhodlela, kodwa futhi enze kube lula ukulebula kwezimpawu zokuhweba.
Izidingo kanye nokwethulwa kwezinto zokubumba igalelo
Ukuthuthukiswa kanye nokusetshenziswa kobuchwepheshe bokubumba i-blow kubanzi kakhulu, okuhambisana nokuthuthukiswa kwezinto zokubumba i- blow.Izinto zokubumba ze-Blow zithuthuke kancane kancane zisuka kumikhiqizo yasekuqaleni ye-LDPE, i-PET, i-PP kanye ne-PVC ukuze zishaye amapulasitiki okubumba obunjiniyela, irabha nezinye izinto eziyinhlanganisela.
Izidingo ezikhethekile zezinto zenjoloba ezicini ezihlukahlukene zokushaywa kwepulasitiki
1. Extrusion blow molding
Ukubunjwa kwe-Extrusion blow kwenziwa esimweni sokugeleza kwe-viscous, ngakho-ke ukuze kuncishiswe i-parison sag futhi ukwandise ukusatshalaliswa kodonga, ipulasitiki enesisindo esikhulu samangqamuzana ivame ukusetshenziswa.
2. Ukubumba igalelo lomjovo
Ukubunjwa kokushaywa komjovo kwenziwa esimweni sokunwebeka okuphezulu.Ukuze kuncishiswe ukusetshenziswa kwamandla kwe-parison yokubumba umjovo, ipulasitiki ethile egeleza kalula (ipulasitiki enesisindo esincane samangqamuzana) isetshenziswa.
3. Umjovo welula igalelo ukubumba
Ipulasitiki ye-amorphous ngokuvamile isetshenziswa.Ngenxa yamandla amancane e-intermolecular entanglement epulasitiki e-amorphous, kulula ukwelula.Yize i-PET iphinde ibe yikristalu, iseyinto ebaluleke kakhulu yokubumba i-stretch blow, futhi izinga lokucwebezela lihamba kancane.Ngamafuphi, amapulasitiki amaningi okubumba ama-blow anokusabalalisa isisindo samangqamuzana aphakathi nendawo ukuya phezulu.
Uhlobo lwezinto zokubumba igalelo
1. Ama-Polyolefin
I-HDPE, i-LLDPE, i-LDPE, i-PP, i-EVA ngokuvamile isetshenziselwa ukubumba imikhiqizo yezimboni, iziqukathi nezesekeli zamathoyizi, iziqukathi zokugcina amakhemikhali, njll.
2. I-polyester ye-Thermoplastic
I-PETG ne-PETP zisetshenziselwa kakhulu ukufutha amabhodlela okupakisha esiphuzo se-carbonated namabhodlela ewayini, athathe indawo ye-PVC kancane kancane futhi asetshenziswa kabanzi.Okubi ukuthi izindleko zabo ziphezulu, futhi zisetshenziselwa ikakhulukazi ukubumba igalelo lokudonsa umjovo.
3. Amapulasitiki obunjiniyela (ingxubevange)
I-ABS, i-SAN, i-PS, i-PA, i-POM, i-PMMA, i-PPO, njll isetshenziswe kancane kancane ezimotweni, emithini, ezintweni zasendlini, embonini yamakhemikhali nakwezinye izimboni, ikakhulukazi i-PC kanye namapulasitiki ayo ahlanganisiwe, angasetshenziswa ukuvuthela izinga eliphezulu. iziqukathi nemikhiqizo yezimoto (PC/ABS, njll.).
4. I-Thermoplastic elastomer
Ngokuvamile, i-SBS, i-SEBS, i-TPU, i-TPE nezinye izinhlanganisela zokubumba ziyasetshenziswa, kuyilapho amapulasitiki e-thermosetting, i-vulcanized rubber kanye ne-crosslinked PE ayikwazi ukubunjwa.
Isifinyezo:
Izinto ezijwayelekile zokubumba igalelo lomjovo
I-PE, i-PET, i-PVC, i-PP, i-PC ne-POM isetshenziselwa ikakhulukazi iziqukathi nezingxenye zesakhiwo ezinokunemba okuphezulu kokubumba kanye nevolumu encane.
Isikhathi sokuthumela: Mar-22-2023