Resin mai ɗaukar hoto yana nufin kayan da aka yi amfani da su don warkar da saurin samfur.Guduro ne mai haske na ruwa, ko guduro mai ɗaukar hoto, wanda galibi ya ƙunshi oligomer, photoinitiator da diluent.Guduro mai ɗaukar hoto da aka yi amfani da shi don SLA daidai yake da na yau da kullun na warkar da prepolymer.Koyaya, tunda tushen hasken da aka yi amfani da shi don SLA shine hasken monochromatic, wanda ya bambanta da hasken ultraviolet na yau da kullun, kuma yana da buƙatu mafi girma don ƙimar warkewa, resin mai ɗaukar hoto da ake amfani da shi don SLA gabaɗaya yakamata ya sami halaye masu zuwa.
(1) Karancin danko.Maganin haske ya dogara ne akan ƙirar CAD, resin Layer ta Layer wanda aka sanya shi cikin sassa.Lokacin da aka gama Layer ɗaya, saboda yanayin tashin hankali na resin ya fi na ƙaƙƙarfan guduro, yana da wuya ga resin ruwa ya rufe saman daɗaɗɗen guduro ta atomatik. taimakon scraper ta atomatik, kuma za'a iya sarrafa Layer na gaba kawai bayan an daidaita matakin ruwa.Wannan yana buƙatar guduro don samun ɗanɗano kaɗan don tabbatar da ingantaccen matakinsa da sauƙin aiki.Yanzu ana buƙatar dankon guduro gabaɗaya don zama ƙasa da 600 CP · s (30 ℃).
(2) Karamar waraka raguwa.Nisa tsakanin kwayoyin resin ruwa shine nisan aikin karfi na van der Waals, wanda shine kusan 0.3 ~ 0.5 nm.Bayan warkewa, kwayoyin suna da alaƙa da juna kuma suna samar da tsarin hanyar sadarwa.Nisa tsakanin kwayoyin halitta yana canzawa zuwa nisan haɗin haɗin gwiwa, wanda shine kusan 0.154 nm.Babu shakka, nisa tsakanin kwayoyin halitta kafin da bayan warkewa yana raguwa.Ya kamata a rage nisa na ƙarin haɓakar haɓakar polymerization ɗaya tsakanin ƙwayoyin cuta da 0.125 ~ 0.325 nm.Ko da yake a cikin tsarin canjin sinadarai, C = C yana canzawa zuwa CC kuma tsayin haɗin yana ƙara dan kadan, gudunmawar da aka samu ga canjin hulɗar hulɗar intermolecular kadan ne.Saboda haka, ƙarar ƙarar ba makawa ne bayan warkewa.A lokaci guda, kafin da bayan warkewa, daga rashin lafiya zuwa ƙarin tsari, za a kuma sami raguwar girma.Ƙunƙasa ba shi da kyau ga ƙirar ƙira, wanda zai haifar da damuwa na ciki, wanda ke da sauƙi don haifar da nakasawa, yaƙe-yaƙe da fashewar sassan samfurin, kuma yana tasiri sosai ga daidaito na sassa.Don haka, haɓaka ƙananan guduro mai raguwa shine babbar matsalar da resin SLA ke fuskanta a halin yanzu.
(3) Yawan warkewa da sauri.Gabaɗaya, kauri na kowane Layer shine 0.1 ~ 0.2 mm don magance Layer ta Layer yayin gyare-gyaren, kuma sashi ɗaya yana buƙatar warkewa na ɗaruruwa zuwa dubunnan yadudduka.Don haka, idan za a kera daskararrun a cikin ɗan gajeren lokaci, ƙimar warkewa yana da mahimmanci.Lokacin bayyanar da katakon Laser zuwa ma'ana yana cikin kewayon microsecond zuwa millise seconds, wanda kusan yayi daidai da yanayin jin daɗin rayuwa na photoinitiator da aka yi amfani da shi.Low curing kudi ba kawai rinjayar curing sakamako, amma kuma kai tsaye rinjayar da aiki yadda ya dace na gyare-gyaren inji, don haka yana da wuya a dace da kasuwanci samar.
(4) Karamin kumburi.A cikin tsarin samar da samfurin, an rufe resin ruwa a kan wasu kayan aikin da aka warkar da su, wanda zai iya shiga cikin sassan da aka warke kuma ya kumbura resin da aka warke, yana haifar da karuwar girman sashi.Sai kawai lokacin da kumburin guduro ya ƙanƙanta za a iya tabbatar da daidaiton samfurin.
(5) Hasken haske mai girma.Saboda SLA yana amfani da hasken monochromatic, yana buƙatar cewa tsayin raƙuman resin photosensitive da Laser dole ne su dace, wato, tsayin igiyoyin Laser yakamata ya kasance kusa da matsakaicin matsakaicin tsayin raƙuman raƙuman raƙuman hotuna gwargwadon yiwuwa.A lokaci guda, da sha raƙuwar kewayon photosensitive guduro ya kamata kunkuntar, don tabbatar da cewa curing faruwa ne kawai a batu irradiated da Laser, don inganta masana'antu daidaito na sassa.
(6) Highing degree.The shrinkage na post curing gyare-gyaren model za a iya rage, don rage post curing nakasawa.
(7) Ƙarfin jika mai ƙarfi.Ƙarfin jika mai ƙarfi na iya tabbatar da cewa babu nakasu, faɗaɗawa da bawon tsaka-tsaki a cikin tsarin warkewar bayan.
Lokacin aikawa: Juni-01-2022