Cishe iminyaka eyishumi ngemva kokwethulwa, oyinki be-UV LED abalaphekayo bamukelwa ngesivinini esisheshayo ngabaguquli belebula. Izinzuzo zikayinki ngaphezu koyinki 'ovamile' wemercury UV - ukwelapha okungcono nokusheshayo, ukusimama okuthuthukisiwe kanye nezindleko eziphansi zokusebenza - ziya ngokuya ziqondwa kabanzi. Ukwengeza, ubuchwepheshe buya bufinyeleleka kalula njengoba abakhiqizi bemishini behlinzeka ngokufaka ububanzi obubanzi bezibani zesikhathi eside emigqeni yabo.
Ngaphezu kwalokho, kunesikhuthazo esikhulu sokuba abaguquli bacabangele ukushintshela ku-LED, ngoba ubungozi nezindleko zokwenza lokho ziyehla. Lokhu kwenziwe lula ukufika kwesizukulwane esisha sikayinki 'wokwelapha okukabili' nama-coatings angasebenza ngaphansi kokubili kwe-LED namalambu e-mercury, okuvumela iziguquli ukuthi zisebenzise ubuchwepheshe ngezinyathelo, kunokuba kungazelelwe.
Umehluko omkhulu phakathi kwelambu lemercury elijwayelekile nesibani se-LED ubude begagasi obukhishelwa ukuphulukiswa kwenzeke. Isibani se-mercury-vapor sikhipha amandla ku-spectrum phakathi kuka-220 no-400 nanometers (nm), kuyilapho amalambu e-LED anobude obuncane begagasi phakathi kuka-375nm no-410nm futhi aphakama cishe ku-395nm.
Oyinki be-UV LED belashwa ngendlela efanayo neziyinki ezivamile ze-UV, kodwa bayazwela kubude obuncane bokukhanya. Zihluke komunye nomunye, ngakho-ke, ngeqembu lama-photoinitiators asetshenziselwa ukuqalisa ukusabela kokwelapha; ama-pigments, ama-oligomers nama-monomers asetshenzisiwe ayafana.
Ukwelashwa kwe-UV LED kunikeza izinzuzo eziqinile zemvelo, ikhwalithi, nokuphepha kunokwelapha okuvamile. Le nqubo ayisebenzisi i-mercury noma i-ozone, ngakho-ke alukho uhlelo lokukhipha oludingekayo ukuze kukhishwe i-ozone emshinini wokunyathelisa.
Inikeza ukusebenza kahle kwesikhathi eside futhi. Isibani se-LED singakhanyiswa futhi sicishwe ngaphandle kwesidingo sesikhathi sokufudumala noma sokupholisa, sinikeze ukusebenza okuphezulu kusukela ngesikhathi sikhanyisa. Asikho isidingo sama-shutter ukuvikela i-substrate uma isibani sicishiwe.
Isikhathi sokuthumela: Sep-07-2024
