Uyini Umehluko Phakathi Kokwenza I-Vacuum, I-Thermoforming, kanye Nokwenza Ingcindezi?

I-Thermoforming kuyinqubo yokukhiqiza lapho ishidi lepulasitiki lishiselwa libe yisimo esivumelana nezimo, esibe sesibunjwa noma sakhiwe kusetshenziswa isikhunta, bese siyasikwa ukwenza ingxenye yokugcina noma umkhiqizo. Kokubili ukwakhiwa kwe-vacuum kanye nokwenza ingcindezi kuyizinhlobo ezahlukene zezinqubo ze-thermoforming. Umehluko omkhulu phakathi kokwenza ingcindezi kanye nokwakhiwa kwe-vacuum yinani lezibunjwa ezisetshenziswayo.

Ukwakhiwa kwevacuum iwuhlobo olulula kakhulu lwe-thermoforming yepulasitiki futhi isebenzisa isikhunta nengcindezi ye-vacuum ukuze kuzuzwe ingxenye yejiyomethri oyifunayo. Ilungele izingxenye ezidinga kuphela ukulolongwa ngokunembile ohlangothini olulodwa, njengokupakishwa kwe-contour yokudla noma izinto zikagesi.

Kunezinhlobo ezimbili eziyisisekelo zokubunjwa—owesilisa noma oqondile (okuyi-convex) nowesifazane noma onegethivu, okuyi-concave. Ezikhunjini zesilisa, kufakwa ishidi lepulasitiki esikhunjeni ukuze kwakheke uhlaka lwezilinganiso zangaphakathi zengxenye yepulasitiki. Ezikhunjini zesifazane, amashidi e-thermoplastic afakwa ngaphakathi kwesikhunta ukuze enze ngokunembile ubukhulu bengxenye yangaphandle.

Ekwakhekeni kwengcindezi , ishidi lepulasitiki elishisayo licindezelwa phakathi kwesikhunta ezimbili (yingakho igama), kunokuba lidonswe eduze kwesikhunta esisodwa ngokumuncwa. Ukwakhiwa kwengcindezi kulungele ukukhiqiza izingxenye zepulasitiki noma izingcezu ezidinga ukulolongwa ngokunembe kakhudlwana nhlangothi zombili futhi/noma zidinga ukudonsa okujulile (zidinga ukunwebeka kakhulu/zijule zibe isikhunta), njengama-casings kagesi adinga ukubukeka ngendlela ebukekayo. ngaphandle bese uchofoza endaweni noma ulingane nosayizi oqondile ohlangothini lwangaphakathi.