Umkhiqizi ochwepheshe wemishini yokushisa ukushisa.
Ulimi
Umkhiqizi ochwepheshe wemishini yokushisa ukushisa.
Izinyathelo Eziyisisekelo ze-Thermoforming
1. Ukulungiselela Impahla
Isinyathelo sokuqala senqubo ye-thermoforming ukukhetha nokulungisa izinto ezifanele zephepha lepulasitiki. Amashidi asetshenziswa kakhulu ahlanganisa i-Polystyrene (PS), i-Polyethylene Terephthalate (PET), i-High Impact Polystyrene (HIPS), i-Polypropylene (PP), ne-Polylactic Acid (PLA). Izinto ezihlukene zinezakhiwo ezahlukene futhi zifanele ukusetshenziswa okuhlukahlukene. Ukukhethwa kwezinto ezibonakalayo kuyisisekelo sempumelelo yenqubo yonke, ngakho ukunakwa okukhethekile kuyadingeka.
Ithebula: Izinto Ezivamile Ze-Thermoforming Nezakhiwo Zazo
| Okubalulekile | Isifinyezo | Izakhiwo | Izicelo Ezivamile |
| I-Polystyrene | PS | Iqinile, kulula ukuyicubungula | Izitsha ezilahlwayo, amabhokisi okupakisha |
| I-Polyethylene Terephthalate | I-PET | Ukungafihli okuphezulu, ukumelana nomthelela | Amabhodlela eziphuzo, ukupakishwa kokudla |
| I-Polystyrene Enomthelela Ophezulu | AMAHIPS | Ukumelana nomthelela onamandla, ukuqina okuhle | Izindlu zikagesi, ukupakishwa kokudla okuqandisiwe |
| I-Polypropylene | PP | Ukumelana nokushisa okuhle, ukuzinza kwamakhemikhali | Ukupakishwa kokudla, ukupakishwa kwemithi |
| I-Polylactic Acid | I-PLA | I-biodegradable, i-eco-friendly | Izitsha ze-compostable, i-bio-packaging |
Ngesikhathi sesigaba sokulungiselela impahla, ingaphezulu leshidi lidinga ukuhlanzwa ukuze kukhishwe uthuli noma ukungcola okungase kuthinte ikhwalithi yokubumba. Kwezinye izinhlelo zokusebenza ezidingeka kakhulu, amashidi angase futhi adinge ukwelashwa kwangaphambili, njengokusebenzisa ama-anti-static agents noma ukuguqulwa kwendawo.
2. Ukushisisa
Ukushisa kungenye yezinyathelo ezibaluleke kakhulu enqubweni ye-thermoforming, lapho ishidi lepulasitiki lishiselwa ekushiseni kwalo okuthambile, okwenza likwazi ukuthambile ngokwanele. Izinto zokushisisa ngokuvamile zisebenzisa ukufudumeza kwe-infrared noma ukushisisa ukumelana ukuze kuqinisekiswe ukuthi ishidi lishisisa ngokulinganayo.
Izinto ezihlukene zidinga amazinga okushisa ahlukene kanye nezikhathi. Isibonelo, amashidi e-PET ngokuvamile adinga ukushisisa phakathi kwebanga lokushisa elingu-120-160°C, kuyilapho amashidi e-HIPS ngokuvamile adinga ukushisisa phakathi kuka-80-120°C. Inqubo yokushisisa ayidingi nje kuphela ukucabangela indawo yokuthambisa yezinto kodwa futhi kufanele iqinisekise ukuthi ishidi aliboli noma liwohloke ngesikhathi sokushisisa. Ngakho-ke, ukulawula izinga lokushisa okunembile kwemishini yokushisisa kuyadingeka, futhi ukupholisa noma ukulungiswa kungase kudingeke lapho kudingeka.
Emkhiqizweni wezimboni, ukufana kokushisisa kubalulekile ekwenzeni ikhwalithi. Uma ishidi lingashisiswanga ngokulinganayo, lingase libangele ukuguquguquka kwendawo, ukudangala, noma ukuhlukahluka kokuqina komkhiqizo oqediwe. Lezi zinkinga azithinti nje kuphela ukubukeka komkhiqizo kodwa zingase zibe nomthelela ezicini eziwumshini nokuqina kwawo. Ngakho-ke, ukunakwa okukhethekile kufanele kukhokhwe ukufana kweshidi ngesikhathi sesigaba sokushisa.
3. Ukwakha
Ukwakha kuyinqubo yokudlulisa ishidi lepulasitiki elishisayo libe isikhunta futhi kusetshenziswa ukumuncwa kwe-vacuum, ukucindezela, noma amandla omshini ukuze lilolonge. Inqubo yokwenza ingahlukaniswa ibe yi-vacuum forming, i-pressure forming, kanye nokwakheka kwemishini, ngayinye inezinzuzo zayo ezihlukile kanye nezicelo.
Ekwakheni i-vacuum, ishidi linamathela eduze kwendawo yesikhunta ukuze kwakheke umumo oyifunayo. Le ndlela ijwayele ukusetshenziselwa ukukhiqiza imikhiqizo enezindonga ezincane njengezitsha ezilahlwayo namabhokisi okupakisha okudla. Ukwakha ukucindezela kucindezela ishidi libe yisikhunta, elifanele ukwenza imikhiqizo eqinile futhi eyinkimbinkimbi. Ukwakhiwa kwemishini kusebenzisa imishini ukuze ifake ingcindezi ngokuqondile, ikakhulukazi esetshenziselwa ukukhiqiza imikhiqizo enezindonga eziwugqinsi.
Phakathi nenqubo yokwakha, imingcele enjengokucindezela, isikhathi, nezinga lokushisa kudingeka ilawulwe. Ukucindezela okukhulu kungase kubangele ukuthi ishidi liqhume, kuyilapho ukucindezela okunganele kungase kubangele izimo ezingaphelele zomkhiqizo. Isikhathi eside sokwenza singase sibangele ukuguga okubonakalayo, kuyilapho isikhathi esifushane kakhulu singase sivimbele ukukhiqizwa okuphelele kwemininingwane yomkhiqizo.
4. Ukupholisa
Ukupholisa kuyinqubo yokupholisa ngokushesha umkhiqizo wepulasitiki owenziwe ube sesimweni esiqinile. Isivinini sokupholisa sithinta ngokuqondile ukuzinza kobukhulu bomkhiqizo kanye nekhwalithi yendawo. Ukupholisa ngokuvamile kwenziwa kusetshenziswa umoya noma amanzi, kuye ngesimo somkhiqizo, impahla, kanye nezidingo ezisebenza kahle zokukhiqiza.
5. Ukusika
Ngemuva kokuthi ukupholisa sekuqediwe, imikhiqizo eyenziwe idinga ukusikwa ukuze kukhishwe izingxenye ezingaphezulu, kuqinisekiswe ukuthi imiphetho ihlanzekile futhi inembile. Imikhiqizo esikiwe idinga ukuhlolwa okwengeziwe ukuze kuqinisekiswe ukuthi ihlangabezana nobukhulu obudingekayo kanye nokwakheka.
6. Ukuqoqwa kukadoti
Udoti okhiqizwa ngesikhathi senqubo ye-thermoforming, njengokusikeka onqenqemeni nemikhiqizo enesici, ngokuvamile iqoqwa ukuze igaywe kabusha. Lokhu akusizi kuphela ukunciphisa udoti wempahla eluhlaza kodwa futhi kuhlangabezana nezidingo zemvelo. Ngemva kokuqoqwa kwemfucuza, lezi zinto zingacutshungulwa kabusha zibe amashidi amasha ukuze kuqhutshekwe nokukhiqizwa.
Umkhiqizi ochwepheshe wemishini yokushisa ukushisa.
