I-Photosensitive resin, evame ukwaziwa ngokuthi yi-UV enamathelayo engelashwayo engenamthunzi, noma inhlaka ye-UV (ingcina), yakhiwa ikakhulukazi i-oligomer, i-photoinitiator kanye ne-diluent.Eminyakeni yamuva nje, i-photosensitive resin isetshenziswe embonini yokuphrinta ye-3D, ethandwa futhi yaziswa imboni ngenxa yezici zayo ezinhle kakhulu.Umbuzo uwukuthi, ingabe i-photosensitive resin inobuthi?
Umgomo wokwakha we-photosensitive resin: lapho ukukhanya kwe-ultraviolet (ukukhanya okunobude beza obuthile) kukhazimula kunhlaka ezwelayo, inhlaka ye-photosensitive izokhiqiza ukusabela okwelaphayo futhi iguquke isuke oketshezini iye kokuqinile.Ingakwazi ukulawula indlela yokukhanya (i-SLA Technology) noma ilawule ngokuqondile ukuma kobuchwepheshe bokukhanya (i-DLP) yokwelapha.Ngale ndlela, ungqimba lokuphulukisa luba yimodeli.
Ama-photosensitive resins asetshenziswa kakhulu ukuphrinta amamodeli amahle namamodeli edizayini ayinkimbinkimbi anezidingo eziphezulu zokunemba kwemodeli nekhwalithi ephezulu, njengamabhodi ezandla, enziwe ngezandla, ubucwebe noma izingxenye zokuhlanganisa ezinembayo.Nokho, akufanelekile ukuphrinta amamodeli amakhulu.Uma amamodeli amakhulu edinga ukuphrinta, adinga ukuhlakazwa ukuze aphrinte.Kodwa-ke, kufanele kukhunjulwe ukuthi kokubili ukuphrinta okukhanyayo nokusobala ngokugcwele kudinga ukupholishwa esikhathini esizayo.Lapho ukupholisha kungeke kufinyelele khona, ukucaca kuzoba kubi kakhulu.
I-photosensitive resin material ayikwazi ukusho nje ukuthi inobuthi noma ayinabo ubuthi.Ubuthi kufanele kuxoxwe ngokuhambisana nomthamo.Ngokuvamile, ayikho inkinga ngemva kokuphulukiswa kokukhanya okujwayelekile.I-resin yokupholisa ukukhanya iyinhlaka ye-matrix ye-coating yokwelapha ukukhanya.Ihlanganiswe ne-photoinitiator, i-diluent esebenzayo kanye nezithasiselo ezihlukahlukene ukuze zenze ukunamathela okukhanyayo okuphulukisayo.
I-monomer ye-UV esebenzayo iwuhlobo lwe-acrylate monoma olufanele ukusabela kokwelapha kwe-UV.I-HDDA ine-viscosity ephansi, amandla anamandla okuhlanjululwa, umphumela wokuvuvukala ku-substrate yepulasitiki, futhi ingathuthukisa ngempumelelo futhi ikhuthaze ukunamathela ku-substrate yepulasitiki.Inokumelana okuhle namakhemikhali, ukumelana kwamanzi nokumelana nokushisa, ukumelana nesimo sezulu esihle kakhulu, isivinini sokusabela esiphakathi kanye nokuguquguquka okuhle.Ama-monomers e-UV asetshenziswa kabanzi embotsheni ye-UV, oyinki be-UV, izinamathiselo ze-UV nezinye izinkambu.
I-monomer ye-UV ngokuvamile ibonakala nge-viscosity ephansi nekhono elinamandla lokuhlanjululwa;Ukunamathela okuhle kakhulu ku-substrate yepulasitiki;Ukumelana okuhle kwamakhemikhali, ukumelana kwamanzi nokumelana nokushisa;Ukumelana nesimo sezulu esihle kakhulu;Ukuguquguquka okuhle;Isivinini sokuphulukisa esimaphakathi;Ukumanzisa okuhle nokuhlelemba.
I-UV monomer ingelapheka kuphela uma ikhanyiswe kusixazululo seglue ngokukhanya kwe-ultraviolet, okungukuthi, i-photosensitizer enamathelayo engenathunzi izoboshwa ne-monomer lapho ivezwe ekukhanyeni kwe-ultraviolet.Ngokombono, ingcina engenathunzi ngeke ilaphe cishe unomphela ngaphandle kwemisebe yomthombo wokukhanya we-ultraviolet.Imisebe ye-Ultraviolet ivela elangeni lemvelo kanye nemithombo yokukhanya yokwenziwa.Lapho i-UV inamandla, isivinini sokuphulukisa siyashesha.Ngokuvamile, isikhathi sokuphulukisa sisukela kumasekhondi ayi-10 kuye kwangama-60.Ngokukhanya kwelanga kwemvelo, imisebe ye-ultraviolet esimweni sezulu esishisayo izoba namandla, futhi ngokushesha ijubane lokuphulukisa liba njalo.Kodwa-ke, lapho kungenakukhanya kwelanga okunamandla, umthombo wokukhanya we-ultraviolet wokwenziwa kuphela ongasetshenziswa.
Kunezinhlobo eziningi zemithombo yokukhanya ye-ultraviolet yokwenziwa, futhi umehluko wamandla nawo mkhulu kakhulu.Amandla aphansi angaba mancane njengama-watts ambalwa, futhi amandla aphezulu angafinyelela amashumi ezinkulungwane zama-watts.Ijubane lokuphulukisa le-adhesive engenamthunzi ekhiqizwa abakhiqizi abahlukene noma amamodeli ahlukene ahlukile.I-adhesive engenathunzi esetshenziselwa ukubopha ingelapheka kuphela ngemisebe ekhanyayo.Ngakho-ke, i-adhesive engenamthunzi esetshenziselwa ukubopha ingahlanganisa kuphela izinto ezimbili ezibonakalayo noma enye yazo kufanele ibonakale, ukuze ukukhanya kwe-ultraviolet kudlule futhi kukhanyise uketshezi olunamathelayo;Faka ingcina ye-UV engenamthunzi kwenye yezindawo, vala izindiza ezimbili, futhi ukhanyise ngesibani se-ultraviolet enobude obufanele beza (imvamisa engu-365nm-400nm) namandla noma isibani semercury esinengcindezi ephezulu ukuze sikhanyise.Uma u-irradiation, kuyadingeka ukukhanyisa kusukela phakathi nendawo kuya ku-periphery, futhi uqinisekise ukuthi ukukhanya kungangena ngempela engxenyeni yokubopha.
Isikhathi sokuthumela: May-19-2022