Ukubumba yinkqubo yokwenza iindlela ezahlukeneyo zeepolymers (iipowder, iipellets, izisombululo okanye i-dispersions) kwiimveliso ezikwimo efunwayo. Eyona nto ibalulekileyo kuyo yonke inkqubo yokubumba izinto zeplastiki kwaye kukuveliswa kwazo zonke izinto zepolymer okanye iiprofayili. Inkqubo eyimfuneko.Iindlela zokubumba zeplastiki ziquka ukubunjwa kwe-extrusion, ukubunjwa kwenaliti, ukubunjwa koxinzelelo, ukubunjwa kokudluliselwa, ukubunjwa kwe-laminate, ukubunjwa kokuvuthela, ukubumba i-calender, ukubumba i-foam, i-thermoforming kunye nezinye iindlela ezininzi, zonke ezinokuguquguquka kwazo.
Thermoformingyindlela yokuvelisa iimveliso kusetyenziswa amaphepha e-thermoplastic njengezinto eziluhlaza, ezinokuthi zibalelwa ekubunjweni kwesibini kweeplastiki. Okokuqala, ishidi elisikwe kubungakanani obuthile kunye nokumila libekwe kwisakhelo sokubumba, kwaye lifudunyezwe kwindawo ephakamileyo ye-elastic phakathi kwe-Tg-Tf, i-sheet yoluliwe ngelixa ifudumala, kwaye ke uxinzelelo lusetyenziswa ukwenza ukuba luvale. ukubumba Umphezulu wemilo ufana nomphezulu wemilo, kwaye imveliso inokufumaneka emva kokupholisa, ukubunjwa kunye nokulungisa.Ngexesha le-thermoforming, uxinzelelo olusetyenzisiweyo lusekwe ikakhulu kumahluko woxinzelelo owenziwe ngokucoca kunye nokwazisa umoya oxinzelelweyo kumacala omabini ephepha, kodwa nangendlela yoxinzelelo lomatshini kunye noxinzelelo lwehydraulic.
Uphawu lwe-thermoforming kukuba uxinzelelo lokubumba luphantsi, kwaye inkqubo ye-thermoforming ihamba ngolu hlobo lulandelayo:
ibhodi (iphepha) imathiriyeli → ukubamba → ukufudumeza → uxinzelelo → ukupholisa → ukumila → iimveliso ezingekagqitywa → ukupholisa → ukucheba.I-thermoforming yemveliso egqityiweyo yahlukile kwitekhnoloji yokucubungula ixesha elilodwa njenge-injection molding kunye ne-extrusion. Ayisiyiyo i-resin yeplastiki okanye iipellet zokufudumeza ukubumba okanye ukubunjwa okuqhubekayo kunye necandelo elifanayo elinqamlezayo ngokufa; kwaye ayisebenzisi izixhobo zoomatshini, izixhobo kunye nezinye iindlela zokulungisa oomatshini ukusika inxalenye yezinto zeplastiki. Okulandelayo, ukufumana imilo efunekayo kunye nobukhulu, kodwa kwibhodi yeplastiki (iphepha) izinto, ukufudumeza, usebenzisa isikhunta, i-vacuum okanye uxinzelelo lokuguqula izinto zebhodi (iphepha). Ukufikelela kwimilo kunye nobukhulu obufunekayo, ukuxhaswa ngeenkqubo ezixhasayo, ukufezekisa injongo yesicelo.
Itekhnoloji ye-thermoforming iphuhliswa ngokusekelwe kwindlela yokwenza iphepha lesinyithi. Nangona ixesha layo lophuhliso alikho ixesha elide, kodwa isantya sokulungisa sikhawuleza, iqondo lokuzenzekelayo liphezulu, i-mold ingabizi kwaye kulula ukuyibuyisela, kwaye ukulungelelaniswa komelele. Inokuvelisa iimveliso ezinkulu njengenqwelomoya kunye nezixhobo zemoto, ezincinci njengeekomityi zesiselo. Izinto ezishiyiweyo kulula ukuzisebenzisa kwakhona. Iyakwazi ukucubungula amashiti amancinci njenge-0.10mm ubukhulu. La maphepha anokuthi abonakale okanye angabonakali, abe yikristale okanye amorphous. Iipateni zinokuprintwa kwiphepha lokuqala, okanye iipatheni ezinemibala eqaqambileyo zingaprintwa emva kokubumba.
Kwiminyaka engama-30 ukuya kwengama-40 edlulileyo, ngenxa yokwanda kweentlobo ngeentlobo zezinto ze-thermoplastic sheet (iphepha) njengezinto eziluhlaza, ukuphuculwa okuqhubekayo kwezixhobo zenkqubo ye-thermoforming, kunye nokusetyenziswa okubanzi kweemveliso, iteknoloji ye-thermoforming iye yaphuhliswa Ngophuhliso olukhawulezayo, iteknoloji yayo. kwaye izixhobo ziya ziba zigqibelele ngakumbi. Xa kuthelekiswa nokubumba inaliti, i-thermoforming inenzuzo yokusebenza kakuhle kwemveliso, indlela elula, utyalo-mali oluncinci lwezixhobo, kunye nokukwazi ukwenza iimveliso ezinomgangatho omkhulu. Nangona kunjalo, ixabiso lezinto eziluhlaza ze-thermoforming liphezulu, kwaye zininzi iinkqubo emva kokulungiswa kweemveliso. Kunye nophuhliso oluqhubekayo lobugcisa imveliso kunye nemfuneko yokwandisa iinzuzo kwezoqoqosho, izixhobo thermoforming ngokuthe ngcembe walahla yangaphambili kuphela njengebhodi yeplastiki ezimeleyo (iphepha) inkqubo yokubumba izinto, kwaye sele iqalile ukudibanisa kunye nezinye izixhobo imveliso ukuhlangabezana nokwakheka. Umgca opheleleyo wemveliso kwiimfuno ezithile, ngaloo ndlela uphucula ngakumbi ukusebenza kakuhle kwemveliso kunye nokunciphisa iindleko zokuvelisa imveliso yokugqibela.
Thermoformingilungele ngokukodwa ukwenziwa kweemveliso ezinodonga olubhityileyo kunye neendawo ezinkulu zomhlaba. Iindidi zeplastiki ezisetyenziswa ngokuqhelekileyo ziquka i-polystyrene, i-plexiglass, i-polyvinyl chloride, i-abs, i-polyethylene, i-polypropylene, i-polyamide, i-polycarbonate kunye ne-polyethylene terephthalate.
Ixesha lokuposa: Apr-20-2021