I-Blow Molding & Compression Molding

I-Blow molding inqubo lapho ama-athikili akhiwa khona ngokusungulwa kwenhlaka encibilikisiwe ukuze kugcwaliswe isikhunta esinomumo nobukhulu obufunwayo. Ukubumba ukucindezela kuyindlela endala yokukhiqiza imikhiqizo ye-polymer, futhi isetshenziselwa ikakhulukazi ama-thermosets.

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Vuthela ukubumba

I-Blow molding inqubo lapho ama-athikili akhiwa khona ngokusungulwa kwenhlaka encibilikisiwe ukuze kugcwaliswe isikhunta esinomumo nobukhulu obufunekayo.Amabhodlela eziphuzo ezibandayo nezinye izinto eziwuketshezi ziyabunjwa.Izinhlobo ezimbili ezibaluleke kakhulu zenqubo ukubunjwa kwe-extrusion blow kanye nokubunjwa kwegalelo lomjovo.Ekubumbeni igalelo le-extrusion, i-extruder iphampa incibilikisa nge-annular die ukuze yakhe ishubhu elincibilikisiwe noma isonto elinobukhulu obunwetshiwe futhi obulawulwayo.I-parison iboshelwe phakathi kwamahhafu amabili esikhunta futhi ifakwe umoya wangaphakathi ukuze ithathe isimo sesikhunta, esivame ukupholiswa.Ekugcineni, i-athikili eyakhiwe i-solidiŽ es ngenxa yokupholisa futhi isikhunta sivulwa ukuze kukhishwe i-athikili ngaphandle kokulimala.Kuye ngokuzinza okushisayo kwempahla, inqubo ye-extrusion ingaba eqhubekayo noma ephakathi.Amasistimu esikhashana angasebenzisa izikulufu ezibuyiselanayo ezisebenza njengezinqama, ngendlela efanayo naleyo ekubumbeni umjovo.

Ukubumba igalelo lomjovo kuyinqubo yezigaba ezimbili.Esigabeni sokuqala, ipulasitiki ijovwa emgodini lapho i-preform ibunjwa khona.I-preform ibe idluliselwa kusikhunta sokushaywa kwe-fiation.Ukubumba ukuvuthela komjovo kunikeza izinzuzo zokulawula ubukhulu obunembile, ukuqedwa kwe-scrap kanye nokubunjwa ngaphakathi kwemicu ngaphambi kokuphephetha.Ukubumba okuvuthela i-Extrusion kuyakhethwa ezitsheni ezinobude obuphezulu/ububanzi bezilinganiso kanye nemikhiqizo enezibambo.

I-Polyethylene terephthalate noma i-PET i-polymer esetshenziswa kakhulu ekubunjweni komjovo wokujova, iziphuzo ze-carbonated namabhodlela amanzi.I-Stretch blow molding isetshenziselwa ukukhiqiza amabhodlela e-PET wezakhiwo ezithuthukisiwe zomzimba.Kule nqubo, ukwelula kubangela ukwakheka kwamakristalu amancane e-lamellar.Lawa makristalu aphumela emikhiqizweni esobala futhi eqinile kunaleyo ekhiqizwa ngaphandle kokuvunguza, enamakristalu ayi-spherulitic.

Ukubunjwa kokucindezela

Ukubumba kwe-Compression kuyindlela endala kakhulu yokukhiqiza imikhiqizo ye-polymer, futhi isetshenziselwa ikakhulukazi ama-thermosets.Kule nqubo i-compound icindezelwa ekubunjweni ngamapuleti ashisayo omshini wokunyathelisa we-hydraulic.Le nqubo ngokwezinga elithile iyafana nokugxivizwa kwensimbi.Ukubunjwa komjovo wama-polymers kuthathe indawo yokubunjwa kokucindezelwa kwamanye ama-polymer, ngenxa yezinzuzo zokuphatha izinto kanye ne-automation.Kodwa-ke, ukubunjwa kokucindezela kunenzuzo ekucubunguleni ama-polymers aqinisiwe.Ngenxa yamazinga anesizotha okuguqulwa nokucindezeleka okuhilelekile ekubumbeni kokucindezela, imicu yokuqinisa ayilimazi.I-fibre ephezulu kakhulu kanye nezintambo ezinde zingafakwa emikhiqizweni ebunjwe ngokucindezelwa