Uninzi lwenkqubo yokunyanga ye-UV ye-LED inezibane ze-LED ezicwangcisiweyo kwaye ziqhagamshelwe ukwenza indawo yokukhupha. Ke ngoko, okukhona ummandla umkhulu, kokukhona kufuneka ii-LED ze-UV ezingakumbi ukuze zigcine ubushushu obufanayo bemitha.
Nangona kunjalo, iitshiphusi ze-UV ze-LED zihlala zibiza kakhulu kwaye indawo enkulu ithetha ixabiso eliphezulu kwizibane ze-UV ze-UV. Ke ngoko, kwimeko yobubanzi be-inki yokunyanga ye-UV buzinzile, ukhetho olufanelekileyo lobubanzi besibane se-LED ukufumana umthombo wokukhanya ongabizi kakhulu, ayisinokugqiba ngcono ukunyanga inki, kodwa kunokonga iindleko.
Ke, sikhetha njani ububanzi obufanelekileyo kwiinkqubo zokunyanga ze-UV LED?
Imigaqo yokunyanga i-Ink ye-UV
Ngaphambi kokuba siqonde indlela yokukhetha, kufuneka siqale siqonde umgaqo wokunyanga we-inki ye-UV. Ukunyangwa kwe-inki ye-UV kubandakanya umqalisi we-photo-polymerization kwi-inki efunxa iifoto zobude obuthile phantsi kokukhanyaIzixhobo zokunyanga ze-UV, okubangela ukuba bavuyiswe kwaye benze i-radicals yamahhala okanye i-ion.Emva koko, ngokugqithiswa kwamandla phakathi kwama-molecule, i-polymer iba nemihlali kwaye ivelise ii-complexes zokudluliselwa kwentlawulo.
Ngamagama alula, i-inki ye-UV idinga ukufunxa amandla e-ultraviolet ukufezekisa ukunyanga. Ngoko ke, kufuna kuphela ukubonelela ngamandla aneleyo ngexesha lokutshisa.
Ububanzi bokubala ifomula
Ububanzi bomthombo wokukhanya kwe-UV LED bunokubalwa kusetyenziswa le fomula ilandelayo:
Ububanzi bomthombo wokukhanya (L) = QV/W
(Q: Amandla afunekayo kwi-Ink Curing; V: Isantya sebhanti leConveyor; W: Ukunyanga uMthombo wokuKhanya amandla)
Umzekelo, ukuba i-inki ye-UV ifuna i-4000mJ yokunyanga, kwaye umatshini wokunyanga we-UV LED unamandla ayi-10000mW/cm² kunye nebhanti lokuhambisa isantya se-0.1m/s. Ngokusekelwe kwifomula engentla, ingabalwa ukuba i-40 mm ububanzi be-UV LED umatshini wokunyanga iyadingeka.Ubude bomthombo wokukhanya ngokuqhelekileyo ububanzi bebhanti yokuhambisa. Ubude bomthombo wokukhanya ngokuqhelekileyo bububanzi bebhanti lokuhambisa, ukuba ibhanti lokuhambisa ububanzi be-600mm, isixhobo sokunyanga i-inki esifunekayo mhlawumbi yi-600x40mm indawo yokukhanya yomthombo wokukhanya.
Ukuqwalasela ukuzinza kokusebenza kwezixhobo, umda othile unokushiywa xa ukhethaUkunyanga kwe-UV LEDiinkqubo, mhlawumbi ngokunyusa kancinane ububanzi okanye ngokukhetha umatshini wokuxina okuphezulu.
Ixesha lokuposa: Apr-09-2024