UV LED Curing for Conformal Coatings: Enhancing Efficiency with Precision Technology

Itekhnoloji yokunyanga ye-UV ye-LED iyitshintshile indlela abavelisi abasebenzisa ngayo iingubo ezihambelanayo. Iindlela zokunyanga ze-UV zesiNtu zichitha amandla kwaye zidale iziphumo ezingahambelaniyo. Kwakhona zivelisa igesi ye-ozone eyingozi ebeka imingcipheko yokhuseleko.

Iinkqubo ze-LED ngoku zinyanga izixhobo kumaqondo obushushu asezantsi kunye nobude obuchanekileyo phakathi kwe-365 kunye I-395nm ye-UV LED . Ezi nkqubo zibonelela ngeziphumo ezingcono kunezibane eziqhelekileyo zokukhupha imekyuri. Amacandelo eemoto kunye neempahla ezimhlophe amkele le teknoloji ukunyusa imveliso. Amaxesha okunyanga ngokukhawuleza kunye nokukhuselwa okungcono kwizinto ezisingqongileyo kwenza kube lukhetho olunomtsalane.

Eli nqaku libonisa indlela itekhnoloji yokunyanga ye-UV ye-UV iguqula usetyenziso oluhambelanayo lokwaleka. Iquka izibonelelo kunye neendlela zokulawula i-wavelength kwaye ichaza indlela le teknoloji ihambisa ngayo iinkqubo zokuvelisa kumashishini azo zonke iintlobo.

Ukuqonda i-Coatings Conformal Coatings kunye ne-UV ye-LED yokuNyanga

Ukunyangwa kwe-UV ye-LED kubuvulindlela kwizicelo zokugquma ngokusesikweni zangoku kwaye kubonelela ngolawulo oluchanekileyo olunentsebenzo ekhethekileyo. Itekhnoloji isebenza ngefotopolymerization, apho amandla e-UV atshintsha iileyile zolwelo zibe ziileya eziluqilima ezikhuselayo ngemizuzwana.

Iinkqubo ze-UV ze-LED zivelisa ubude obuthile phakathi kwe-365 kunye ne-395 nm kwaye zenze iiprofayili zokunyanga ezifanayo ezinika iimpawu zepolymer ezingaguqukiyo. Olu lawulo lwe-wavelength ludala ukwanda okulinganayo kunye neempawu zokucutha ezinciphisa umngcipheko wokuqhekeka ngexesha lokuhamba ngebhayisikile eshushu.

Itekhnoloji ikhanya kwimveliso yombane. Iinkqubo zokunyanga ze-UV LED zisebenzisa i-30% ukuya kwi-70% yamandla angaphantsi kuneendlela zemveli. Ezi nkqubo zikwabonisa uzinzo olumangalisayo kunye nokugcina imveliso ye-UV engaguqukiyo kubo bonke ubomi babo bokusebenza.

Izibonelelo zokunyanga kwe-UV LED ngaphezu kweendlela zokunyanga zesintu

Ukunyanga kwe-UV kunika iingenelo ezinkulu kwiindawo ezininzi:

▶ 1) Ubuchule bokusebenza

Ubomi obude bokusebenza, ngaphezulu kweeyure ezingama-20,000 xa kuthelekiswa ne-1,000 ukuya kwiiyure ezingama-1,500 kwizibane zemercury. Amandla awonga kakhulu, ama-75% ukuya kuma-85% amandla angaphantsi kuneendlela zokomisa eziqhelekileyo. Akukho xesha lokufudumala, livula kwaye licime ngoko nangoko ngaphandle kokulibazisa.

▶ 2) Impembelelo yokusingqongileyo

Ingcono kwimo engqongileyo. Akukho kukhutshwa kwe-ozone okanye inkunkuma enobungozi, ukukhutshwa kwe-CO₂ kuncitshiswa ngaphezu kwe-50%. Izibane ze-UV zomphunga zeMercury zifuna iinkqubo zokutsalwa komsi, kodwa ukunyangwa kwe-UV kuphelisa isidingo seso sixhobo esongezelelweyo.

▶ 3) Iindleko kunye neeNgenelo zokuSebenza

Iinkqubo ze-UV ze-LED zinoqoqosho ngakumbi ngokweendleko kunye nokusebenza. Iindleko zokusebenza zonyaka zehla kakhulu ukusuka kwi-34,000 yeedola ezinezibane zomphunga zemercury ukuya kwi-658 yeedola kuphela ezineeyunithi ze-UV ze-LED. Ukhuseleko olungcono lwamacandelo e-elektroniki kunye nokumelana neekhemikhali. Ikhuselekile kwizinto ezibuthathaka kubushushu, inokunyanga ngaphandle komngcipheko womonakalo okanye ukulwa.

I-UV LED isebenza kwizicelo ezininzi zamashishini. Imveliso ehambelanayo kubo bonke ubomi bayo iqinisekisa ukuthembeka kwenkqubo. Ukunyangwa kwe-LED kudala iiprofayili zokunyanga ezifanayo ngokungena nzulu kwe-UV kwiipolymer eziphilayo—iingubo ezineepropati ezihambelanayo kunye nokuqina.

Ukubaluleka koLawulo lweWavelength oluchanekileyo kwi-UV ye-LED yokuNyanga

Ukukhetha ubude obuchanekileyo bubomi betekhnoloji yokunyanga ye-UV LED. Olu khetho luchaphazela umgangatho kunye nokusebenza kakuhle kwezicelo zokugquma ngokusemthethweni. Indlela yokukhetha ubude be-wavelength kunye nokunyanga ukusebenza ngokubambisana yakha iziseko zeenkqubo zokuvelisa eziphucukileyo.

◆ Iindlela ezahlukeneyo zokugquma zifuna ubude obuthile be-UV ukuze busebenze kakuhle

Indlela yokwaleka nganye ifuna ubude bayo obuthile. Iinkqubo ze-UV LED zisebenza ikakhulu kwi-365, 385, 395, kunye ne-405 nm wavelengths. Uninzi lwezicelo ze-inki zisebenza ngcono nge-395 nm, nangona i-365 kunye ne-385 nm zinosetyenziso olukhethekileyo.

Abavelisi kufuneka bafanise ukukhanya kwabo kwe-UV kunye nendlela iifotonitiators ezithatha ngayo ukukhanya. Umphezulu wokugquma ufuna isixa esilungisiweyo ngononophelo samandla ewonke, esilinganisa ngedosi yamandla (J/cm2).

◆ A Ukuqhubela phambili kwi-UV yokulinganisa ubude be-LED kunye nokwenza ngokwezifiso

Itekhnoloji entsha isivumela ukuba silawule ukuhanjiswa kwamaza e-UV ngokuchanekileyo okukhulu. Iinkqubo zanamhlanje ze-UV LED zinokwenza izinto ezimangalisayo:

• Amanqanaba encopho ye-irradiance ehamba ngaphaya kwe-5 W/cm2 kubude obukhethekileyo bamaza
• Balawula ukugcina i-irradiance iyunifomu ngaphakathi kwe- +/- 10% kwiindawo ezibanzi
• Bayayazi indlela yokuhambisa iidosi ze-UV ezingaguqukiyo ngalo lonke ixesha lokuvezwa

◆ I-Case study: Indlela echanekileyo yokulawula ubude bobude obuchaphazela umgangatho wokugquma

Umzekelo wehlabathi lokwenyani ubonise indlela ulawulo lwamaza olwandle olusebenza ngayo kwizicelo zokugquma. Inkqubo iphumelele i-irradiance kunye neentloko ezininzi ze-UV ezigubungela i-66-intshi ebanzi yemveliso. Enkosi kulawulo olunelungelo elilodwa lomenzi weemodyuli ze-UV ze-LED, ukuseta kugcine ubude bobulumko obufanayo bungcono kune +/-10%.

Ukukhetha ubude bobude obufanelekileyo kubandakanya okungaphezulu kunokulinganisa okulula. Ngamanye amaxesha i-395nm inika iziphumo ezingcono kune-365nm, nokuba iiprofayili zokufunxa zicebisa ngenye indlela. Olu lwazi luye lwanceda ekudaleni ukwakheka okukhethekileyo kwee-substrates ezinobushushu.

I-irradiance ephezulu ayisoloko ithetha iziphumo ezingcono. Ubudlelwane phakathi kobude bobude, ixabiso le-irradiance, kunye nokuxinana kwamandla kufuna ukucwangciswa ngononophelo. Ulawulo lwamaza eSmart lunceda abavelisi bonyuse uzinzo kwaye bafumane imveliso ye-UV engaguqukiyo enomgangatho ophezulu wokugquma.

Ukuphucula ukusebenza kakuhle kweMveliso ngokuNyanga i-UV LED

Iinkqubo zokunyanga ze-UV ze-LED zithatha ukusebenza kakuhle kokwenziwa kwiindawo eziphakamileyo kwaye ziphawule utshintsho olukhulu kwiindlela zokunyanga ezishushu. Ezi nkqubo zihamba phambili zilungelelanisa iinkqubo zemveliso ngamandla onyango olukhawulezayo kwaye zifuna ukulungiswa okuncinci.

Itekhnoloji ye-UV ye-LED iphucula ngokucacileyo iimethrikhi ezininzi zokuvelisa. Imigca yokuvelisa iqhuba i-50% ukuya kwi-80% ngokukhawuleza, oku kuthetha ukugqithisa okuphezulu ngaphandle kokuchaphazela umgangatho wokugquma. Inkqubo yokuvula/yokucima okukhawulezileyo isusa ixesha lokufudumala kwaye inciphisa ukulibaziseka kwemveliso kunye nenkcitho yamandla ethwaxa iinkqubo zomphunga zemercury eziqhelekileyo.

Iinkqubo ze-UV ze-LED zidinga indawo encinci kakhulu yomgangatho kwiindawo zemveliso. Inkqubo eqhelekileyo ithatha nje i-1/3 yendawo edingwa zii-oveni ezishushu. Olu phawu lugcina indawo luvumela abavelisi ukuba baphucule uyilo lweziko labo kwaye bongeze imigca yemveliso.

Ukuthembeka kobuchwephesha kwenza ukuba imisebenzi isebenze ngakumbi. Iinkqubo ze-UV ze-LED zihambisa imveliso engaguqukiyo kumjikelezo wobomi babo, ukunciphisa ukuhluka komgangatho kwimveliso yokugqibela. Uyilo olulula lwenkqubo, ngaphandle kwee-shutters zoomatshini kunye neenkqubo zokupholisa ezinzima, zifuna ukulungiswa okuncinci kunye nokunciphisa ixesha lokuphumla.

Ukwamkelwa kwe-UV LED kwenza ingqiqo yezemali:

• Iindleko zamandla zehla nge-75% xa kuthelekiswa neenkqubo ze-UV eziqhelekileyo
• Iindleko zokugcina ziyancipha kuba iinkqubo zihlala ixesha elide
• Ulawulo olungcono lokunyanga luthetha inkcitho encinci yemveliso

Iinkqubo zokunyanga ze-LED zenza iindawo zokusebenza zikhuseleke ngakumbi. Itekhnoloji isebenza kakuhle kwaye ayidali i-ozone okanye izinto ezikhutshwayo eziyingozi. Oku kudala indawo yokusebenza ekhuselekileyo efuna umoya omncinci kunye nokunciphisa iindleko ezinxulumeneyo.

Abavelisi banokulungisa useto lokunyanga ngokuchanekileyo ngokusekwe kwiimfuno ezithile zokwaleka. Abaqhubi basebenzisa ujongano lwedijithali ukulungisa amanqanaba amandla kunye namaxesha okuvezwa ngokuchaneka okukhulu. Olu lawulo luchanekileyo luqinisekisa iimveliso ezisemgangathweni ngelixa usebenzisa izinto ezincinci kunye namandla.

Ezi nkqubo zingqineka zizinzile ngokumangalisayo kwiisethingi zemveliso. Zisebenza ngokungaguqukiyo nangona kukho utshintsho kwiqondo lobushushu kunye nokufuma. Oku kuthembeka kudala iishedyuli zemveliso ezinokuqikelelwa kwaye kunciphisa imiba yolawulo lomgangatho.

Ukuthelekisa ukunyangwa kwe-UV LED vs. IiTekhnoloji zokuNyanga zesiNtu

Uhlalutyo olupheleleyo lweenkqubo zokunyanga ze-UV lubonisa iingenelo ezicacileyo ngaphezulu kwetekhnoloji yomphunga wemekyuri yemveli kwizicelo zokwaleka ngokusesikweni. Izisombululo ezisekelwe kwi-LED zifumana ukuthandwa ngenxa yeemethrikhi zazo zokusebenza kakuhle kunye neenzuzo zokusebenza.

✔ Izibane zomphunga zeMercury vs. Ukunyanga kwe-UV LED

Iinkqubo ze-UV ze-LED zisebenza kakuhle kwaye zidla amandla angaphantsi kwe-50-70% kunezibane eziqhelekileyo zomphunga zemercury. Iinkqubo ze-LED zihlala ngaphezu kweeyure ze-20,000, ezinde kakhulu kunezibane ze-mercury eziqhelekileyo ezihlala kuphela iiyure ze-1,000-1,500.

Iisistim ze-LED ziguqula igalelo lombane elininzi libe sisibane se-UV kunezibane zemercury ezichitha amandla njengobushushu. Amanani enza ishishini eliqinileyo - iinkqubo ze-LED zinciphisa iindleko zombane zonyaka ngama-89% kwiindawo ezisemgangathweni zokuvelisa.

✔ Ukunciphisa ubushushu kunye neenzuzo zokhuseleko lwezinto eziphathekayo zokunyanga kwe-UV LED

Iinkqubo ze-LED zigqwesa ekulawuleni ubushushu. Zibaleka kumaqondo obushushu phakathi 40°C kunye 80°C, epholile kakhulu kunezixokelelwano zomphunga zemekyuri ezidlulayo 100°C. La maqondo obushushu asezantsi avumela abavelisi ukuba:

• Iprosesa yezinto eziphathekayo ezinobushushu ngaphandle kokuguqulwa
• Yenza iingubo ezifanayo kwii-substrates
• Ukunciphisa ukuqhekeka komphezulu kunye nemiba yokubambelela

✔ Indlela echanekileyo yokulawula ubude be-waveth iphucula ngakumbi ukusebenza kwe-UV ye-LED

Iinkqubo zanamhlanje ze-UV ze-LED zinika abasebenzisi ulawulo olungazange lubonwe ngaphambili malunga nokuhanjiswa kwamaza. Kwi-395 nm, bafikelela kwi-peak irradiance ye-24W / cm2 yokupholisa amanzi kunye ne-16W / cm2 yokusetha umoya opholileyo. Uluhlu lwe-LED luvelisa phantse imveliso ye-monochromatic kunye ne-10-20 nm ubude be-wavelength.

Uluhlu lwe-UV lwe-LED ludala amasimi okukhanya athambileyo kunye afanayo ngokucwangciswa kweetshiphu ezininzi. Izibane ze-Mercury zigxininise i-irradiance kumgama othile, kwaye iinkqubo ze-LED zigcina ukuhanjiswa kwamandla ukusuka kwifestile yokukhutshwa ukuya kwindawo yokusebenza.

Unokwandisa ukusebenza kokunyanga kuqulunqo lwakho lotyalo ngokukhetha ubude bamaza phakathi kwe-365 kunye ne-405nm. Akukho mfuneko yokuvala oomatshini kunye nokugcina amandla ngexesha lemijikelezo yokuvelisa.

Ukunyangwa kwe-UV ye-LED kwi-Conformal Coatings Applications

Iinkqubo zokunyanga ze-UV ze-LED ziguquguquka kwizicelo zokugquma ngokusemthethweni kuwo wonke amashishini ahlukeneyo. Abavelisi bayayithanda le teknoloji’s ukuchaneka kunye nokuthembeka xa befuna ukhuseleko lwemveliso yezinga eliphezulu.

Kwi ukwenziwa kwezinto zombane , zikhusela iibhodi zeesekethe eziprintiweyo (PCBs) kumonakalo wokusingqongileyo. Ukunyanga ubushushu obuphantsi kuthintela uxinzelelo lwe-thermal kwizinto ezinobuthathaka ze-elektroniki. Kuba iisemiconductors , Ukunyangwa kwe-LED kuqinisekisa ukuba ubukhulu be-coating, ukunamathela okuqinileyo kunye nokuchasana nokufuma kunye neekhemikhali.

I ishishini leemoto  isebenzisa le teknoloji ukwenza iingubo ezinzima ezinokumelana nokushisa okukhulu kunye neekhemikhali ezinzima. Iingubo zixhathisa ulwelo lweemoto kwaye zihlala zizinzile phakathi -65°C kunye +150°C.

Isibane sokunyanga se-UV LED sibonelela ngeengubo ezichanekileyo ezichanekileyo ngaphakathi ukwenziwa kwezixhobo zonyango kunye nezixhobo zonyango . Amacandelo e-aerospace adinga iingubo ezinokumelana noxinzelelo olunzima kunye nokutshintsha kweqondo lokushisa, izixhobo zonyango zifuna iingubo ze-biocompatible kunye nolawulo oluchanekileyo oluhambelana nokhuseleko olungqongqo kunye nemigangatho yokuvala inzala.

Ukunyangwa kwe-UV ye-LED kuhambela phambili, kunika abavelisi ulawulo olungakumbi kunye nokwenza ngokwezifiso iimfuno zabo, kwimveliso ethembekileyo nesebenzayo kuwo wonke amashishini.

Ukukhetha iSisombululo sokuNyanga se-LED esiLungileyo

Izisombululo zokunyanga ze-UV ze-LED zifuna ukuphononongwa ngononophelo kweenkcukacha zobugcisa kunye nobuchule bomenzi. Inkqubo efanelekileyo iya kukunika ukusebenza okuhambelanayo, ukuthembeka kunye nexabiso lexesha elide kwizicelo zokugqoka ezihambelanayo.

▶ T izinto ekufuneka ziqwalaselwe

Enye yezona zinto zibalulekileyo kukukhethwa kwe-wavelength. Isixokelelwano esilungileyo se-UV ye-LED kufuneka igcine i-wavelength yeziko eliphakamileyo elizinzileyo kunye nokwahluka okuncinci ukuqinisekisa ukunyangwa okufanayo. Kwakhona, imveliso ye-LED kufuneka ihambelane neprofayili yokufakwa kwe-coating ukuze ifumane iziphumo ezilungileyo.

Ukudityaniswa kwenkqubo ngomnye umba ophambili. Ukungena komoya okufanelekileyo kuyadingeka ukuze kugcinwe ukusebenza kakuhle kokupholisa, kwaye ubushushu be-ambient bunokuchaphazela ukusebenza. Izithintelo zesithuba nazo kufuneka ziqwalaselwe ukuze zilungele inkqubo kwinkqubo yemveliso.

Ukusebenza kunye nomvelisi othembekileyo we-UV we-LED kukunika izibonelelo ezininzi. Abavelisi abasekiweyo abanamashumi eminyaka yamava banikezela ngenkxaso eyomeleleyo yobugcisa, izisombululo ezilungiselelweyo kunye nokuqinisekiswa komgangatho ngeenkqubo zokuvelisa ezivavanyiweyo.

▶ Indlela i-Tianhui ye-LED ibonelela ngayo kwishishini elikhokela izisombululo ze-UV ze-LED

I-Tianhui Electronics ngumboneleli okhokelayo wezisombululo ze-UV ze-UV, enikezela uluhlu olupheleleyo lwamaza ukusuka kwi-250 nm ukuya kwi-420 n. m. Ubuchwephesha babo bokuvelisa i-UV ye-LED buthatha ngaphezulu kweminyaka engama-20, ebavumela ukuba baphuhlise izisombululo zesiko kwiintsuku nje ezisi-7. Iinkqubo zabo zokunyanga ukusebenza okuphezulu zinciphisa iindleko zokusebenza ngelixa zinikezela ngeziphumo ezingaguqukiyo nezithembekileyo.

Izisombululo zale mihla ze-UV ze-LED zandisa ukusebenza kakuhle ngolawulo olucwangcisiweyo lwe-wavelength kunye neenkqubo zokupholisa eziphambili. Eyona ndlela yokukhetha inkqubo ilungelelanisa iimfuno zokusebenza kwangoko kunye neendleko zokusebenza kwexesha elide. Iimeko zemveliso ziyahluka, ke abavelisi kufuneka bakhethe izisombululo ze-UV ze-LED ezinikezela ngokuthe ngqo, iziphumo eziphindaphindwayo rhoqo.

Ukuqukumbela

Itekhnoloji yokunyanga ye-UV LED imele impumelelo kwizicelo zokwaleka ezihambelanayo. Izisa izibonelelo ezinkulu ngolawulo lwamaza kunye nokusebenza kakuhle. Le teknoloji igcina amandla kwaye isebenza ngaphezu kweeyure ze-20,000 xa kuthelekiswa neendlela zakudala. Ukuvelisa izityalo ezitshintshela kwiinkqubo ze-UV ze-LED zibona iziphumo eziphawulekayo. Izantya zabo zemveliso zitsibela ukuya kuthi ga kwi-80% kwaye bachitha ixesha elincinci kulondolozo.

Iinkqubo zenza indawo yokusebenza ekhuselekileyo ngokuphelisa ukukhutshwa kwe-ozone kunye nokuvelisa ubushushu obuncinci. Isitshixo sokufumana iziphumo ezintle kukukhetha inkqubo efanelekileyo ngoncedo lweengcali. Iinkampani ezijonga izisombululo ezithembekileyo ze-UV ze-LED zinokuphonononga iminikelo kuyo I-Tianhui-LED, apho ubuchwephesha kunye nezinto ezintsha ziqhuba iziphumo eziphambili kushishino.