Mhute yeMercury, diode inoburitsa chiedza (LED), uye excimer matekinoroji akasiyana emwenje weUV-curing. Kunyange zvazvo zvese zvitatu zvichishandiswa mumaitiro akasiyana-siyana ephotopolymerization kusanganisa inki, macoatings, adhesives, uye extrusions, nzira dzinogadzira simba reUV rinopfuta, pamwe nehunhu hwezvinobuda zvespectral zvinoenderana, zvakasiyana zvachose. Kunzwisisa misiyano iyi kunobatsira zvikuru mukugadzirwa kwekushandiswa uye kugadzirwa, kusarudzwa kwenzvimbo dzinobvisa UV-curing, uye kubatanidzwa.
Mwenje yeMercury Vapor
Mwenje yemagetsi ine arc uye mwenje ye microwave isina electrode inowira muchikamu che mercury vapor. Mwenje ye mercury vapor imhando yemwenje ine simba repakati nepakati, inoburitsa gasi umo huwandu hushoma hwe elemental mercury negasi risina simba zvinopfuudzwa kuita plasma mukati me quartz tube yakavharwa. Plasma igesi ine ionized inopisa zvakanyanya inokwanisa kuendesa magetsi. Inogadzirwa nekushandisa voltage yemagetsi pakati pema electrodes maviri mukati me arc lamp kana nekuisa microwave lamp isina electrode mukati me enclosure kana cavity yakafanana ne microwave oven yemumba. Kana yapfuudzwa, mercury plasma inoburitsa chiedza chakafara pa ultraviolet, visible, uye infrared wavelengths.
Kana iri rambi remagetsi, voltage inoshandiswa inosimbisa chubhu yequartz yakavharirwa. Simba iri rinoita kuti mercury ive muplasma uye rinoburitsa maerekitironi kubva kumaatomu akapfava. Chikamu chemaerekitironi (-) chinoyerera chichienda kuelectrode yetungsten yakanaka yerambi kana anode (+) uye chichipinda mudunhu remagetsi reUV system. Maatomu ane maerekitironi matsva anova macation ane simba rakanaka (+) anoyerera achienda kuelectrode yetungsten ine simba rakaipa kana cathode (-). Paanofamba, macation anorova maatomu asina simba mumusanganiswa wegesi. Kukanganisa uku kunotamisa maerekitironi kubva kumaatomu asina simba kuenda kumacation. Sezvo macation awana maerekitironi, anodonha muchimiro chesimba rakaderera. Kusiyana kwesimba kunoburitswa semaphoton anobuda kunze kubva muchubhu yequartz. Kana rambi riine simba rakakodzera, rakatonhodzwa zvakanaka, uye richishandiswa mukati mehupenyu hwaro hunoshanda, macation matsva (+) anokwevera kune electrode isina simba kana cathode (-), achirova maatomu akawanda uye achiburitsa chiedza cheUV chinoenderera mberi. Marambi emu microwave anoshanda nenzira yakafanana kunze kwekuti ma microwave, anozivikanwawo se radio frequency (RF), anotsiva circuit yemagetsi. Sezvo marambi emu microwave asina ma electrodes e tungsten uye ingori chubhu ye quartz yakavharwa ine mercury negasi risina simba, anowanzonzi haana ma electrode.
Mwenje we mercury unoburitswa ne broadband kana broad-spectrum mercury vapor lamps unobatanidza ma wavelengths e ultraviolet, visible, uye infrared, zvakaenzana. Chikamu che ultraviolet chinosanganisira musanganiswa we ma UVC (200 kusvika 280 nm), UVB (280 kusvika 315 nm), UVA (315 kusvika 400 nm), uye UVV (400 kusvika 450 nm). Marambi anoburitsa UVC muma wavelengths ari pasi pe 240 nm anogadzira ozone uye anoda kubudiswa kana kuseferwa.
Kubuda kwemwenje we mercury vapor kunogona kuchinjwa nekuwedzera huwandu hushoma hwe dopants, dzakadai se: iron (Fe), gallium (Ga), lead (Pb), tin (Sn), bismuth (Bi), kana indium (In). Simbi dzakawedzerwa dzinochinja musanganiswa weplasma uye, nekudaro, simba rinoburitswa kana ma cations awana ma electron. Marambi ane simbi dzakawedzerwa anonzi doped, additive, uye metal halide. Mazhinji einki dzakagadzirwa neUV, coatings, adhesives, uye extrusions akagadzirwa kuti aenderane nezvinobuda zvemwenje yakajairwa ye mercury- (Hg) kana iron- (Fe). Marambi ane iron anochinja chikamu cheUV chinobuda kuenda kuma wavelengths akareba, ari pedyo, izvo zvinoita kuti kupinda kuri nani kuburikidza nemafomula akakora, ane pigment yakawanda. Mafomula eUV ane titanium dioxide anowanzo pora zviri nani nemwenje ine gallium (GA). Izvi zvinodaro nekuti marambi e gallium anochinja chikamu chikuru cheUV chinobuda kuenda kuma wavelengths akareba kupfuura 380 nm. Sezvo zvinhu zvinowedzerwa mu titanium dioxide zvisingawanzo tora chiedza chinopfuura 380 nm, kushandisa marambi e gallium ane machena kunoita kuti simba re UV riwedzere kutorwa ne photoinitiators pane zvinowedzerwa.
MaSpectral profiles anopa maformulator nevashandisi vekupedzisira mufananidzo unooneka wekuti radiated output yedhizaini yerambi rakati inoparadzirwa sei mu electromagnetic spectrum. Kunyange zvazvo vaporized mercury nesimbi dzinowedzera simba zvine hunhu hwakatsanangurwa hwemwaranzi, musanganiswa chaiwo wezvinhu uye magasi asina simba mukati me quartz tube pamwe nekugadzirwa kwerambi uye dhizaini ye curving system zvese zvinopesvedzera kubuda kweUV. Kubuda kwespectral kwerambi risina kusanganiswa rinofambiswa uye rinoyerwa nemutengesi werambi mumhepo yakavhurika kuchava nekubuda kwakasiyana kwespectral pane rambi rakaiswa mukati memusoro werambi rine reflector yakagadzirwa zvakanaka uye inotonhodza. MaSpectral profiles anowanikwa nyore nyore kubva kune vanopa UV system, uye anobatsira mukugadzira formulation uye kusarudza marambi.
Mufananidzo we spectral unoratidza kupenya kwe spectral pa y-axis uye wavelength pa x-axis. Kupenya kwe spectral kunogona kuratidzwa nenzira dzakasiyana-siyana dzinosanganisira absolute value (semuenzaniso W/cm2/nm) kana zviyero zvisina kurongeka, zvine hukama, kana zvakajairwa (zvisina unit). Ma profiles anowanzo ratidza ruzivo se line chart kana se bar chart inounganidza ma output mu 10 nm bands. Grafu inotevera ye mercury arc lamp spectral output inoratidza kupenya kwe relative maererano ne wavelength yeGEW's systems (Mufananidzo 1).
Mufananidzo 1 »Machati eSpectral output emercury nesimbi.
Rambi izwi rinoshandiswa kureva chubhu yequartz inoburitsa UV muEurope neAsia, nepo North neSouth America dzichishandisa musanganiswa webharubhu nerambi unochinjika. Rambi nemusoro werambi zvese zvinoreva kuunganidza kwakazara kunogara chubhu yequartz nezvimwe zvikamu zvese zvemakanika nemagetsi.
Mwenje yeElectrode Arc
Masisitimu emwenje wearc wemagetsi ane musoro werambi, feni inotonhodza kana chiller, simba remagetsi, uye interface yemuchina wemunhu (HMI). Musoro werambi unosanganisira rambi (girobhu), reflector, casing yesimbi kana housing, shutter assembly, uye dzimwe nguva quartz window kana wire guard. GEW inoisa machubhu ayo equartz, reflectors, uye shutter mechanisms mukati me cassette assemblies dzinogona kubviswa nyore nyore kubva kunze kwe outer light head casing kana housing. Kubvisa GEW cassette kunowanzoitwa mukati memasekonzi uchishandisa Allen wrench imwe chete. Nekuti kubuda kweUV, saizi yemusoro werambi uye chimiro, maitiro esystem, uye zvinodiwa zvemidziyo yekuwedzera zvinosiyana zvichienderana nekushandiswa uye musika, masisitimu emwenje wearc weelectrode anowanzo gadzirirwa rudzi rwakati rwemashandisirwo kana mhando dzemuchina dzakafanana.
Marambi emvura yeMercury anoburitsa chiedza che360° kubva muchubhu yequartz. Masisitimu emarambi eArc anoshandisa mareflector ari kumativi nekumashure kwerambi kuti atore uye aise chiedza chakawanda padaro rakatarwa pamberi pemusoro werambi. Daro iri rinozivikanwa sefocus uye ndipo panonyanya kupenya. Marambi eArc anowanzoburitsa chiedza chiri pakati pe5 kusvika 12 W/cm2 pafocus. Sezvo inenge 70% yeUV inobuda kubva mumusoro werambi ichibva pareflector, zvakakosha kuchengetedza mareflector akachena uye kuatsiva nguva nenguva. Kusachenesa kana kutsiva mareflectors kunowanzo kukonzera kusakwana kwechiedza.
Kwemakore anopfuura makumi matatu, GEW yave ichivandudza kushanda zvakanaka kwemasisitimu ayo ekupisa, ichigadzirisa maficha uye zvinobuda kuti zvienderane nezvinodiwa zvemashandisirwo chaiwo nemisika, uye ichigadzira portfolio yakakura yezvishongedzo zvekubatanidza. Nekuda kweizvozvo, zvinopihwa zvekutengeserana zvemazuva ano kubva kuGEW zvinosanganisira magadzirirwo edzimba dzakatetepa, magadzirirwo akagadziridzwa kuti awedzere kupenya kweUV uye infrared yakaderedzwa, quiet integral shutter mechanisms, mawebhu skirts uye slots, clam-shell web feeding, nitrogen inertion, positive pressurized heads, touch-screen operator interface, solid-state power supplies, greater operating efficiencies, UV output monitoring, uye remote system monitoring.
Kana marambi emagetsi emagetsi ari pakati nepakati achimhanya, tembiricha yepamusoro pe quartz iri pakati pe 600 °C ne 800 °C, uye tembiricha yemukati meplasma inosvika zviuru zvemadhigirii centigrade. Mhepo inomanikidzwa ndiyo nzira huru yekuchengetedza tembiricha inoshanda nemarambi uye kubvisa simba re infrared rinopfuta. GEW inopa mweya uyu zvisina kunaka; izvi zvinoreva kuti mhepo inodhonzwa nepa casing, pamwe ne reflector nerambi, uye inopedza gungano uye kure nemuchina kana pamusoro pe cure. Mamwe masisitimu eGEW akadai seE4C anoshandisa liquid cooling, izvo zvinoita kuti UV ibude zvakanyanya uye zvinoderedza saizi yemusoro werambi.
Marambi emagetsi ane ma "electrode arc" ane ma "warm-up" uye "cool-down". Marambi anodonhedzwa nekutonhodza kushoma. Izvi zvinobvumira mercury plasma kukwira kusvika pakupisa kunodiwa, kugadzira ma "free electrons" uye "cations", uye kugonesa kuyerera kwemagetsi. Kana rambi radzimwa, kutonhodza kunoramba kuchishanda kwemaminitsi mashoma kuti kutonhodze chubhu ye quartz zvakaenzana. Rambi rinopisa zvakanyanya harizodzokorori kutonhora uye rinofanira kuramba richitonhora. Kureba kwe "start-up" uye "cool-down" kutenderera, pamwe nekuora kwema "electrodes" panguva yega yega "voltage strike" ndizvo zvinoita kuti michina ye "pneumatic shutter" igare ichibatanidzwa mu "GEW electrode arc lamp assemblies". Mufananidzo 2 unoratidza "air-cooled (E2C)" uye "liquid-cooled (E4C)" electrode arc lamps.
Mufananidzo 2 »Marambi emagetsi anotonhorera nemvura (E4C) uye anotonhorera nemhepo (E2C).
Mwenje yeUV LED
MaSemi-conductor zvinhu zvakasimba, zvakaita sekristaro zvinofambisa magetsi zvishoma. Magetsi anoyerera nepakati pe semi-conductor zviri nani pane zvinodzivirira magetsi, asi kwete zvakanaka sesimbi. MaSemi-conductor anongoitika asi asingashande zvakanaka anosanganisira zvinhu zvakaita sesilicon, germanium, uye selenium. MaSemi-conductor akagadzirwa ne synthetically akagadzirirwa kubuda uye kushanda zvakanaka zvinhu zvine tsvina zvakanyudzwa mukati me crystal structure. Kana iri UV LEDs, aluminium gallium nitride (AlGaN) chinhu chinoshandiswa zvakanyanya.
MaSemi-conductor akakosha pamagetsi emazuva ano uye akagadzirwa kuti agadzire ma transistors, ma diode, ma light-emitting diode, uye ma micro-processors. Midziyo yeSemi-conductor inosanganiswa muma circuits emagetsi uye inoiswa mukati mezvigadzirwa zvakaita semafoni, ma laptop, mapiritsi, midziyo yemagetsi, ndege, mota, ma remote controllers, uye kunyange matoyi evana. Zvinhu zvidiki izvi asi zvine simba zvinoita kuti zvigadzirwa zvezuva nezuva zvishande ukuwo zvichibvumirawo zvinhu kuti zvive zvidiki, zvitete, huremu hushoma, uye zvitengeke zviri nyore.
Muchiitiko chakakosha chema LED, zvinhu zvakagadzirwa nemazvo uye zvakagadzirwa ne semi-conductor zvinoburitsa mabhandi echiedza akatetepa kana zvakabatana nemagetsi eDC. Chiedza chinogadzirwa chete kana magetsi achiyerera kubva kune anode yakanaka (+) kuenda kune negative cathode (-) ye LED yega yega. Sezvo kubuda kwe LED kuchidzorwa nekukurumidza uye zviri nyore uye kwakangoita monochromatic, ma LED akakodzera kushandiswa se: mwenje wekuratidza; masaini ekutaurirana e infrared; mwenje wekumashure wemaTV, malaptop, mapiritsi, uye mafoni akangwara; zviratidzo zvemagetsi, mabhodhibhodhi, uye majumbotron; uye UV curing.
LED inzvimbo ine positive-negative junction (pn junction). Izvi zvinoreva kuti chikamu chimwe che LED chine positive charge uye chinonzi anode (+), uye chimwe chikamu chine negative charge uye chinonzi cathode (-). Kunyange zvazvo mativi ese ari maviri ari conductive, muganhu we junction uko mativi maviri anosangana, unozivikanwa se depletion zone, hausi conductive. Kana positive (+) terminal ye direct current (DC) power source yakabatana ne anode (+) ye LED, uye negative (-) terminal ye source yakabatana ne cathode (-), ma electron ane negative charge ari mu cathode uye positive charged electron vacancies mu anode anodzoserwa ne power source uye anosundirwa kunzvimbo ye depletion. Uku kusarura kwemberi, uye kune simba rekukunda muganhu usingafambise. Mugumisiro wacho ndewekuti ma electron akasununguka ari munzvimbo ye n-type anoyambuka uye anozadza nzvimbo dzisina vanhu munzvimbo ye p-type. Sezvo ma electron achiyerera nemuganhu, anoshanduka kuita mamiriro esimba rakaderera. Kuderera kwesimba kunoburitswa kubva mu semi-conductor sema photon echiedza.
Zvinhu nezvinhu zvinoumba chimiro che crystalline LED zvinosarudza kubuda kwe spectral. Nhasi, masosi e LED anotengeswa ane ultraviolet outputs ari pa 365, 385, 395, uye 405 nm, kushivirira kwakajairika kwe ±5 nm, uye kugoverwa kweGaussian spectral. Kana peak spectral irradiance yakakura (W/cm2/nm), peak yebell curve inowedzera. Kunyange hazvo kugadzirwa kweUVC kuri kuenderera mberi pakati pe 275 ne 285 nm, kubuda, hupenyu, kuvimbika, uye mutengo hazvisati zvave kushanda mukutengeserana kune masisitimu ekugadzirisa uye mashandisirwo.
Sezvo kubuda kweUV-LED pari zvino kuchingogumira pahurefu hwema UVA wavelengths, UV-LED curing system haiburitse broadband spectral output inoonekwa seye medium-pressure mercury vapor lamps. Izvi zvinoreva kuti UV-LED curing systems haiburitse UVC, UVB, chiedza chinoonekwa zvakanyanya, uye infrared wavelengths inogadzira kupisa. Kunyange izvi zvichigonesa UV-LED curing systems kuti dzishandiswe mukushandiswa kunonyanya kupisa, inki dziripo, macoatings, uye adhesives zvakagadzirwa zve medium-pressure mercury lamps dzinofanira kugadziriswa kuti dzishandiswe UV-LED curing systems. Nerombo rakanaka, vatengesi vemakemikari vari kuwedzera kugadzira zvigadzirwa se dual cure. Izvi zvinoreva kuti dual-cure formulation yakagadzirirwa kuporesa neUV-LED lamp ichaporesawo nemercury vapor lamp (Mufananidzo 3).
Mufananidzo 3 »Chati yekubuda kweSpectral ye LED.
Masisitimu eGEW eUV-LED ekugadzirisa magetsi anoburitsa simba rinosvika 30 W/cm2 pahwindo rinoburitsa magetsi. Kusiyana nemwenje yemagetsi, masisitimu ekugadzirisa magetsi eUV-LED haana ma reflectors anotungamira mwaranzi yechiedza kune chinhu chakanyatsogadzirwa. Nekuda kweizvozvo, kupenya kwechiedza kweUV-LED kunoitika pedyo nehwindo rinoburitsa magetsi. Mwaranzi yeUV-LED inoburitswa inosiyana sezvo daro riri pakati pemusoro werambi nenzvimbo inogadziriswa magetsi richikwira. Izvi zvinoderedza kuwanda kwechiedza uye hukuru hwemwaranzi inosvika panzvimbo inogadziriswa magetsi. Kunyange zvazvo kupenya kwechiedza kwakanyanya kwakakosha pakusanganisa magetsi, kupenya kwakanyanya hakusi nguva dzose kunobatsira uye kunogona kutodzivisa kuwanda kwemwaranzi. Wavelength (nm), kupenya kwechiedza (W/cm2) uye kuwanda kwesimba (J/cm2) zvese zvinoita basa rakakosha mukugadzirisa magetsi, uye kukanganisa kwadzo pamwe chete pakurapa kunofanira kunzwisiswa zvakanaka panguva yekusarudza manyuko eUV-LED.
Ma LED matsime eLambertian. Nemamwe mashoko, LED yega yega yeUV inoburitsa simba rinoenderana ne 360° x 180° hemisphere yakazara. Ma LED akawanda eUV, rimwe nerimwe rakaita se milimita sikweya, akarongwa mumutsara mumwe chete, matrix yemitsara nemakoramu, kana mamwe magadzirirwo. Aya ma subassemblies, anozivikanwa sema modules kana ma arrays, akagadzirwa ne space pakati pema LEDs anoita kuti pave nekusanganiswa pakati pema gaps uye zvinoita kuti diode itonhore. Ma modules akawanda kana ma arrays anozorongwa mu ma assemblies makuru kuti agadzire saizi dzakasiyana dzema UV curing systems (Mifananidzo 4 ne5). Zvimwe zvinhu zvinodiwa pakuvaka UV-LED curing system zvinosanganisira heat sink, emitting window, electronic drivers, DC power supplies, liquid cooling system kana chiller, uye human machine interface (HMI).
Mufananidzo 4 »Sisitimu yeLeLED yewebhu.
Mufananidzo 5 »Sisitimu yeLeoLED yekuisa marambi akawanda nekukurumidza.
Sezvo masisitimu ekurapa eUV-LED asingabudise mawavelength einfrared. Anotamisa simba shoma rekupisa kunzvimbo yekurapa kupfuura marambi emercury vapor, asi izvi hazvirevi kuti maUV LED anofanira kuonekwa sehunyanzvi hwekuporesa. Masisitimu ekurapa eUV-LED anogona kuburitsa kupenya kwakanyanya, uye mawavelength eultraviolet rudzi rwesimba. Chero chinobuda chisina kutorwa nemakemikari chichapisa chikamu chiri pasi kana substrate pamwe nezvikamu zvemuchina zvakakomberedza.
Ma LED eUV zvakare zvikamu zvemagetsi zvisina kushanda zvakanaka zvinokonzereswa nekugadzirwa uye kugadzirwa kwe semi-conductor isina kugadzirwa pamwe nenzira dzekugadzira uye zvikamu zvinoshandiswa kurongedza ma LED muchikamu chikuru chekupisa. Kunyange zvazvo tembiricha yechubhu ye mercury vapor quartz ichifanira kuchengetwa pakati pe600 ne800 °C panguva yekushanda, tembiricha ye LED pn junction inofanira kuramba iri pasi pe120 °C. 35-50% chete yemagetsi anopa simba ku UV-LED array ndiyo inoshandurwa kuita ultraviolet output (inoenderana newavelength zvakanyanya). Yasara inoshandurwa kuita kupisa kunopisa kunofanirwa kubviswa kuitira kuchengetedza tembiricha yejunction inodiwa uye kuve nechokwadi chekuti system irradiation yakatarwa, simba rakawanda, uye kufanana, pamwe nehupenyu hurefu. Ma LED zvinhu zvinogara kwenguva refu, uye kubatanidza ma LED mumagungano makuru ane masystem ekutonhodza akagadzirwa uye akachengetedzwa zvakanaka kwakakosha kuti uwane zvinodiwa zvehupenyu hurefu. Haasi ese masystem ekupisa UV akafanana, uye masystem ekupisa UV-LED asina kugadzirwa zvakanaka ane mukana mukuru wekupisa zvakanyanya uye kukundikana zvakanyanya.
Mwenje weArc/LED Hybrid
Mumusika chero upi zvawo uko tekinoroji itsva inounzwa senzira yekutsiva tekinoroji iripo, panogona kuva nekutya pamusoro pekugamuchirwa pamwe nekusava nechokwadi nezvekushanda kwayo. Vashandisi vanogona kunonoka kugamuchirwa kusvika hwaro hwekuisa hwagara huripo, zvidzidzo zvemuenzaniso zvaburitswa, humbowo hwakanaka hunotanga kutenderera muhuwandu, uye/kana kuti vanowana ruzivo rwechokwadi kana mareferensi kubva kuvanhu nemakambani avanoziva uye avanovimba nawo. Humbowo hwakasimba hunowanzodiwa musika wese usati warega zvachose shanduko yekare uye zvizere kuenda kune itsva. Hazvibatsiri kuti nyaya dzekubudirira dzinowanzova zvakavanzika zvakasimba sezvo vanotanga kushandisa vasingade kuti vakwikwidzi vawane mabhenefiti akafanana. Nekuda kweizvozvo, nyaya dzechokwadi nedzakawedzeredzwa dzekusafara dzimwe nguva dzinogona kurira mumusika wese dzichivanza kunaka kwetekinoroji itsva uye dzichinonotsa kugamuchirwa.
Munhoroondo yese, uye senzira yekudzivisa kushandiswa kwekusada, magadzirirwo emahybrid agara achigamuchirwa sechibvumirano chekuchinja pakati petekinoroji iripo neyazvino. Mahybrids anobvumira vashandisi kuwana chivimbo uye kuzvisarudzira kuti zvigadzirwa zvitsva kana nzira dzinofanira kushandiswa sei uye rini, pasina kukanganisa kugona kwazvino. Panyaya yeUV curating, sisitimu yemahybrids inobvumira vashandisi kuchinjana nekukurumidza uye zviri nyore pakati pemwenje yemercury vapor netekinoroji yeLED. Kune mitsetse ine nzvimbo dzakawanda dzekuporesa, mahybrids anobvumira mapresses kumhanya 100% LED, 100% mercury vapor, kana chero musanganiswa wematekinoroji maviri anodiwa pabasa rakapihwa.
GEW inopa masisitimu e arc/LED hybrid ekushandura mawebhu. Mhinduro iyi yakagadzirwa kune musika mukuru weGEW, narrow-web label, asi dhizaini ye hybrid inoshandiswawo mune mamwe mawebhu uye asiri ewebhu (Mufananidzo 6). Arc/LED ine imba yemwenje yakafanana inogona kugamuchira mercury vapor kana LED cassette. Makaseti ese ari maviri anoshandisa simba repasi rose uye system yekudzora. Ungwaru huri mukati mesisitimu hunogonesa kusiyanisa pakati pemhando dzemakaseti uye hunopa otomatiki simba rakakodzera, kutonhora, uye interface yemushandisi. Kubvisa kana kuisa chero ye mercury vapor yeGEW kana LED cassette kunowanzoitwa mukati memasekonzi uchishandisa chipanera chimwe chete cheAllen.
Mufananidzo 6 »Sisitimu yeArc/LED yewebhu.
Mwenje yeExcimer
Mwenje yeExcimer imhando yemwenje inoburitsa gasi inoburitsa simba reultraviolet rinoita serinofanana nemonochromatic. Kunyange zvazvo mwenje yeExcimer inowanikwa muma wavelength akasiyana-siyana, ultraviolet outputs inowanikwa pakati pe172, 222, 308, uye 351 nm. Mwenje yeExcimer ye172-nm inowira mukati meUV band isina kupenya (100 kusvika 200 nm), nepo 222 nm iri UVC chete (200 kusvika 280 nm). Mwenje yeExcimer ye308-nm inoburitsa UVB (280 kusvika 315 nm), uye 351 nm iUVA yakasimba (315 kusvika 400 nm).
Mawavelength eUV evacuum cleaner e172-nm mapfupi uye ane simba rakawanda kupfuura UVC; zvisinei, anonetseka kupinda zvakadzika muzvinhu. Kutaura zvazviri, mawavelength e172-nm anonyudzwa zvizere mukati me10 kusvika 200 nm yepamusoro yemakemikari eUV-formulated. Nekuda kweizvozvo, marambi e172-nm excimer anongobatanidza chete pamusoro pekunze kweUV formulations uye anofanira kubatanidzwa pamwe chete nezvimwe zvishandiso zvekuporesa. Sezvo mawavelength eUV evacuum anonyudzwawo nemhepo, marambi e172-nm excimer anofanira kushandiswa mumhepo ine nitrogen-inerted.
Marambi mazhinji eexcimer ane chubhu yequartz inoshanda sechipingamupinyi che dielectric. Chubhu iyi izere nemagasi asingawanzoonekwi anokwanisa kugadzira mamorekuru eexcimer kana exciplex (Mufananidzo 7). Magasi akasiyana anogadzira mamorekuru akasiyana, uye mamorekuru akasiyana anofara anosarudza kuti ndeapi mawavelength anoburitswa nerambi. Electrode ine voltage yakawanda inomhanya nepakati pehurefu hwechubhu yequartz, uye maerekuru epasi anomhanya nekunze. Mavoltage anopinzwa murambi nemafrequencies akakwira. Izvi zvinoita kuti maerekuru afambe mukati me electrode yemukati uye abudise musanganiswa wegasi achienda kumaerekuru epasi ekunze. Ichi chiitiko chesainzi chinozivikanwa se dielectric barrier discharge (DBD). Sezvo maerekuru achifamba negasi, anosangana nemaatomu uye anogadzira mhando dzakasimba kana ionized dzinogadzira mamorekuru eexcimer kana exciplex. Mamorekuru eExcimer neexciplex ane hupenyu hupfupi zvikuru, uye sezvaanoora kubva pamamiriro ekufara kuenda kumamiriro epasi, maphotoni ekugoverwa kwe quasi-monochromatic anoburitswa.
Mufananidzo 7 »Rambi reExcimer
Kusiyana nemwenje yemercury vapor, pamusoro pechubhu yequartz yerambi reexcimer haripisi. Nekuda kweizvozvo, mwenje mizhinji yeexcimer inoshanda nekutonhodza kushoma kana kusina. Mune zvimwe zviitiko, kutonhodza kushoma kunodiwa kunowanzopihwa negesi yenitrogen. Nekuda kwekugadzikana kwekupisa kwerambi, mwenje yeexcimer inongoerekana yavhurwa/yadzimwa uye haidi kudziya kana kutonhora.
Kana marambi eexcimer achipenya pa 172 nm akabatanidzwa pamwe chete nemasystem eUVA-LED-curing quasi-monochromatic uye marambi emercury vapor ebroadband, matting surface effects anoitwa. Marambi eUVA LED anotanga ashandiswa gel chemistry. Marambi eexcimer equasi-monochromatic excimer anobva ashandiswa polymerize pamusoro, uye pakupedzisira marambi emercury ebroadband anobatanidza mamwe machemicals. Kubuda kwakasiyana kwema spectral ematekinoroji matatu anoshandiswa muzvikamu zvakasiyana kunoita kuti pave nemhedzisiro inobatsira ye optical uye functional surface-cure iyo isingagone kuwanikwa nechero imwe yeUV sosi yega.
Marefu eExcimer e172 ne222 nm anoshandawo pakuparadza zvinhu zvine njodzi uye mabhakitiriya anokuvadza, izvo zvinoita kuti marambi eExcimer ashande pakuchenesa pamusoro, kubvisa utachiona, uye kurapa simba repamusoro.
Hupenyu hweRambi
Kana tichitarisa nguva yekushanda kwemwenje kana mabharubhu, marambi eGEW anowanzo gara kusvika maawa 2,000. Nguva yekushanda kwemwenje haisi yakakwana, sezvo kubuda kweUV kunopera zvishoma nezvishoma nekufamba kwenguva uye kuchikanganiswa nezvinhu zvakasiyana-siyana. Magadzirirwo uye mhando yemwenje, pamwe nemamiriro ekushanda kweUV system uye mashandiro ekugadzirwa kwayo. Masisitimu eUV akagadzirwa zvakanaka anoita kuti simba rakakodzera uye kutonhora kunodiwa nedhizaini chaiyo yemwenje (bharubhu) zvinopihwa.
Marambi anopihwa neGEW (mababu) anogara achipa hupenyu hwakareba kana achishandiswa muGEW curating systems. Mamwe marambi anowanzo gadzira rambi kubva pamuenzaniso, uye makopi acho anogona kunge asina magumo akafanana, dhayamita yequartz, huwandu hwemercury, kana musanganiswa wegesi, izvo zvinogona kukanganisa kubuda kweUV uye kugadzirwa kwekupisa. Kana kugadzirwa kwekupisa kusina kuenzana nekutonhodza kwesystem, rambi rinotambura mukubuda uye hupenyu hwaro. Marambi anotonhorera anoburitsa UV shoma. Marambi anopisa zvakanyanya haagari kwenguva yakareba uye anokombama pakupisa kwakanyanya.
Nguva yekushanda kwemwenje ye arc ye electrode inoganhurirwa nekupisa kwekushanda kwemwenje, huwandu hwemaawa ekushanda, uye huwandu hwekutanga kana kurira. Nguva imwe neimwe rambi parinorohwa ne arc ine voltage yakawanda panguva yekutanga, electrode ye tungsten inopera. Pakupedzisira, rambi harizodzokorori kurova. Mwenje ye arc ye electrode inosanganisira michina ye shutter iyo, kana yabatanidzwa, inovhara kubuda kwe UV senzira yekuchinja simba remwenje kakawanda. Inki dzakawanda dzinoshanda, ma coatings, uye glues zvinogona kukonzera kugara kwenguva refu kwemwenje; nepo, maitiro mashoma ekushanda anogona kuda kuchinja mwenje kakawanda.
Masisitimu eUV-LED anogara kwenguva refu kupfuura marambi emazuva ose, asi hupenyu hweUV-LED hausiwo hwakazara. Sezvakaita marambi emazuva ose, maUV LED ane miganhu pakuoma kwawo uye anowanzo fanira kushanda tembiricha dziri pasi pe120 °C. MaLED anotyaira zvakanyanya uye maLED asingatonhori zvinokanganisa hupenyu, zvichikonzera kuora nekukurumidza kana kutadza kushanda zvakanaka. Havasi vese vatengesi vemasisitimu eUV-LED parizvino vanopa magadzirirwo anosangana nehupenyu hwepamusoro hwakagara kwenguva refu kupfuura maawa zviuru makumi maviri. Masisitimu akagadzirwa uye akachengetedzwa zviri nani anogara maawa anopfuura zviuru makumi maviri, uye masisitimu asina kunaka achakundikana mukati memahwindo mapfupi. Mashoko akanaka ndeekuti magadzirirwo esisitimu eLED anoramba achivandudzwa uye anogara kwenguva refu nekuvandudzwa kwega kwega kwekugadzira.
Ozon
Kana marefu marefu eUVC akabatana nemamorekuru eokisijeni (O2), anoita kuti mamorekuru eokisijeni (O2) apatsanurwe kuita maatomu maviri eokisijeni (O2). Maatomu eokisijeni akasununguka (O) anobva asangana nemamwe mamorekuru eokisijeni (O2) obva agadzira ozone (O3). Sezvo trioxygen (O3) isina kugadzikana pasi pane dioxygen (O2), ozone inodzokera nyore nyore kuita molekyuli yeokisijeni (O2) uye atomu yeokisijeni (O) painofamba nemhepo yemudenga. Maatomu eokisijeni akasununguka (O2) anobva abatana zvakare mukati me exhaust system kuti agadzire mamorekuru eokisijeni (O2).
Pakushandiswa kweUV mumaindasitiri, ozone (O3) inogadzirwa kana okisijeni yemumhepo ikabatana nema ultraviolet wavelengths ari pasi pe 240 nm. Broadband mercury vapor-curing sources inoburitsa UVC iri pakati pe 200 ne 280 nm, iyo inopindirana nechikamu chenzvimbo inogadzira ozone, uye mwenje we excimer unoburitsa vacuum UV pa 172 nm kana UVC pa 222 nm. Ozone inogadzirwa ne mercury vapor uye mwenje we excimer curing haina kugadzikana uye haisi dambudziko guru rezvakatipoteredza, asi zvakakosha kuti ibviswe munzvimbo iri pedyo nevashandi sezvo inotsamwisa mweya uye ine chepfu pamazinga akakwira. Sezvo masisitimu e UV-LED ekutengesa achiburitsa UVA iri pakati pe 365 ne 405 nm, ozone haigadzirwe.
Ozone ine hwema hwakafanana nekunhuhwirira kwesimbi, waya inobvira, chlorine, uye spark yemagetsi. Manzwiro evanhu ekunhuhwirira anogona kuona ozone yakaderera kusvika pa0.01 kusvika 0.03 zvikamu pamiriyoni (ppm). Kunyange zvazvo ichisiyana zvichienderana nemunhu uye nhanho yekushanda, huwandu hwakakura kupfuura 0.4 ppm hunogona kukonzera mhedzisiro yakaipa yekufema uye musoro. Kufefetera kwakakodzera kunofanirwa kuiswa pamitsetse yeUV-curing kuti mushandi aderedze kusangana neozone.
Masisitimu ekudzivirira UV anowanzo gadzirwa kuti achengetedze mweya unobuda mumhepo inobuda mumhepo inobuda mumagetsi kuitira kuti ubviswe kubva kune vanoushandisa uye kunze kwechivako uko unoora zvakasikwa kana paine okisijeni nezuva. Neimwe nzira, marambi asina ozone anosanganisira quartz additive inovhara mawavelength anogadzira ozone, uye nzvimbo dzinoda kudzivirira kuburitsa kana kucheka maburi padenga dzinowanzo shandisa mafirita pakubuda kwemafeni ekubudisa utsi.
Nguva yekutumira: Chikumi-19-2024
