Byanditswe na Lawrence (Larry) Van Iseghem ni Perezida/Umuyobozi Mukuru wa Van Technologies, Inc.
Mu gihe cy'ubucuruzi n'abakiriya b'inganda ku rwego mpuzamahanga, twasubije ibibazo byinshi bitangaje kandi dutanga ibisubizo byinshi bijyanye n'imyambaro ivura imirasire y'izuba. Ibi bikurikira ni bimwe mu bibazo bikunze kugaragara, kandi ibisubizo biherekeje bishobora gutanga ubumenyi bw'ingirakamaro.
1. Irangi rishobora kuvurwa n'imirasire y'izuba ni iki?
Mu nganda zitunganya imbaho, hari ubwoko butatu bw'ingenzi bw'amabara akoreshwa mu kuvura imirasire y'izuba.
Ingufu zikoreshwa 100% (rimwe na rimwe zitwa 100% by'ibintu bikomeye) zikoreshwa mu kuvura UV ni imiterere y'ibinyabutabire by'amazi bitarimo ikintu icyo ari cyo cyose cyangiza cyangwa amazi. Iyo zikoreshejwe, ingufu zihita zihura n'ingufu za UV zidakeneye kuma cyangwa gushonga mbere yo kuvurwa. Ingufu zikoreshwa mu kuvura zikora urwego rw'ubuso bukomeye binyuze mu buryo bwavuzwe kandi bukwiye bwitwa photopolymerization. Kubera ko nta mwuka ukenewe mbere yo kuvurwa, uburyo bwo kuzikoresha no kuzivura burakora neza cyane kandi buhendutse.
Irangi rya UV riva mu mazi cyangwa riva mu bintu bivanze bivura UV riboneka ko rigizwe n'amazi cyangwa ibintu bivanze kugira ngo rigabanye ingano y'ibintu bifatika (cyangwa ibintu bikomeye). Uku kugabanuka kw'ingano y'ibintu bikomeye bituma byoroha kugenzura ubunini bw'urupapuro rutose, cyangwa kugenzura ubunini bw'urupapuro. Mu gukoreshwa, izi rangi za UV zishyirwa ku buso bw'ibiti binyuze mu buryo butandukanye kandi zigomba kuyumishwa neza mbere yo kuvurwa na UV.
Ifu ivurwa na UV nayo ni imiterere ikomeye 100% kandi ikunze gushyirwa ku bikoresho biyobora amazi binyuze mu gukurura amashanyarazi. Iyo imaze gushyirwaho, ifu irashyuha kugira ngo ishonge, ikavamo igakora firime y'ubuso. Hanyuma, ipfundikizo ishobora guhita ishyirwa ku ngufu za UV kugira ngo yoroherwe no gukira. Ifirime y'ubuso ivamo ntabwo igifite ubushyuhe cyangwa ngo yoroherwe no kwangirika.
Hari ubwoko butandukanye bw'ubu bwoko bw'ubu bwoko bw'ubushyuhe bushobora kuvurwa n'imirasire y'izuba burimo uburyo bwa kabiri bwo kuvura (bukoresha ubushyuhe, bushobora kuvura ubushuhe, nibindi) bushobora kuvura mu bice by'ubuso bitagerwaho n'ingufu za UV. Ubu bwoko bw'ubushyuhe bukunze kwitwa ubushyuhe bubiri.
Uko ubwoko bw'ipamba rishobora kuvurwa n'imirasire y'urumuri rwa UV bwakoreshejwe bwaba buri kose, irangi rya nyuma cyangwa urwego rutanga ubwiza budasanzwe, kuramba no guhangana n'ibiza.
2. Ni gute irangi rivurwa n'imiraba y'urumuri rw'izuba rifata ubwoko butandukanye bw'ibiti, harimo n'ubwoko bw'ibiti bifite amavuta?
Irangi rishobora kuvurwa n’imirasire y’izuba rigaragaza ko rifatanye neza n’ibiti byinshi. Ni ngombwa kumenya neza ko hari uburyo buhagije bwo kuvura kugira ngo ritange uburyo bwo kuvura no gufatana neza n’ubutaka.
Hari ubwoko bumwe na bumwe busanzwe bufite amavuta menshi kandi bushobora gusaba ko hakoreshwa primer itera imbaraga zo gufatana, cyangwa "tiecoat." Van Technologies yakoze ubushakashatsi bukomeye no guteza imbere uburyo bwo gufatana kw'amabara avura UV kuri ubwo bwoko bw'ibiti. Iterambere riheruka ririmo agakoresho kamwe gafatana UV gashobora gukurwaho n'amazi kabuza amavuta, amazi n'ubutare kwangiza uburyo bwo gufatana kw'amabara avura UV.
Ubundi buryo, amavuta ari ku buso bw'igiti ashobora gukurwaho mbere gato yo gusiga irangi hakoreshejwe acetone cyangwa ikindi kintu gikwiye cyo gusiga. Igitambaro kidafite irangi kandi gifata amazi kibanza gutoseshwa n'icyo kintu hanyuma kigahanagurwa hejuru y'igiti. Ahantu ho hejuru haremerwa ko huma hanyuma hagashyirwa irangi rishobora kuvurwa n'imirasire y'izuba. Gukuraho amavuta yo hejuru n'ibindi bintu bihumanya bituma irangi rishyirwa ku buso bw'igiti rikomeza gufatana.
3. Ni ubuhe bwoko bw'ibizinga bihuye n'imyambaro ya UV?
Ibara iryo ari ryo ryose ryavuzwe hano rishobora gufungwa neza no gusigwa hejuru hakoreshejwe uburyo bwa 100% bw'ifu ivura UV, ivura UV igabanuka, ivura UV ikwirakwira mu mazi, cyangwa ivura UV ikwirakwira. Kubwibyo, hari uburyo bwinshi bushoboka butuma ibara iryo ari ryo ryose ku isoko rikwiranye n'ibara iryo ari ryo ryose rivura UV. Icyakora, hari ibintu bimwe na bimwe by'ingenzi kugira ngo harebwe ko hari uburyo bwiza bwo gusiga ibiti.
Amabara yo mu mazi n'amabara ashobora kuvurwa n'amazi:Iyo ukoresheje ifu ifunga/ikoti ry’imbere rishobora kuvurwa 100%, ikoreshwa mu kuvura UV igabanuka cyangwa ikoreshwa mu kuvura UV ikoresheje UV, ni ngombwa ko ibara ryumye neza kugira ngo hirindwe ko rihinduka nk’iry’umuhondo, harimo n’igishishwa cy’umuhondo, amaso y’ifi, gufunga, gukurura no gufunga. Inenge nk’izo ziterwa n’ubushyuhe buke bw’ikoti rikoreshwa ugereranije n’ubushyuhe bwinshi bw’amazi asigaye aturuka ku ibara rikoreshwa.
Gukoresha irangi rishobora kuvurwa n'amazi mu mirasire ya UV muri rusange birarushaho kuba byiza. Irangi rishobora kugaragaza ubushuhe nta ngaruka mbi rigira iyo ukoresheje irangi rimwe na rimwe rishobora kuvurwa n'amazi mu mirasire ya UV. Ubushuhe busigaye cyangwa amazi aturuka mu irangi azakwirakwira mu irangi rishobora kuvurwa n'amazi mu mirasire ya UV mu gihe cyo kumisha. Ariko, birasabwa cyane kugerageza irangi iryo ari ryo ryose n'irangi rishobora kuvurwa n'amazi ku gipimo cy'ikizamini mbere yo kurishyira ku buso bugomba kurangizwa.
Amabara ashingiye kuri peteroli n'aterwa n'umushongi:Nubwo hashobora kubaho uburyo bushobora gukoreshwa ku mavuta yumye cyangwa adafite amavuta menshi, akenshi ni ngombwa, kandi ni byiza cyane, kumisha neza ayo mabara mbere yo gukoresha agakoresho ko gufunga/gupfuka. Kumisha buhoro buhoro ayo mabara y’ubwoko nk’ubu bishobora gufata amasaha 24 kugeza kuri 48 (cyangwa arengaho) kugira ngo yumuke neza. Nanone, ni byiza kugerageza uburyo ku buso bw’ibiti bugaragara.
Ibizinga 100% bivura UV:Muri rusange, irangi rya UV rivurwa 100% rigaragaza ubudahangarwa bwinshi bwa shimi n'amazi iyo rivuwe neza. Uku kudahangarwa gutuma irangi rya nyuma rigorana gufata neza keretse ubuso bwo hasi bwavuwe na UV bumaze gukurwaho neza kugira ngo byemererwe gufatana neza. Nubwo hatangwa irangi rya UV rivurwa 100% ryagenewe kwakira irangi rya nyuma, irangi rya UV rivurwa 100% rigomba gukurwaho cyangwa gukurwaho igice (byitwa "B" stage cyangwa bump curing) kugira ngo habeho gufatana neza hagati y'uruti. Irangi rya "B" rituma habaho ahantu hasigaye hahinduka mu kirangi cyarangiritse, aho hashobora guhura n'irangi rya UV rivurwa neza kuko rimaze gukurwaho neza. Irangi rya "B" rituma kandi hashobora gukurwaho buhoro kugira ngo hagabanywe cyangwa hagabanywe irangi iryo ari ryo ryose rishobora guterwa no gukurwaho. Irangi rya "B" rituma habaho gufatana neza hagati y'uruti.
Indi mpungenge ku biraba 100% bya UV bivurwa ni amabara yijimye. Ibara ry'irangi rikomeye (n'amabara y'irangi muri rusange) rikora neza iyo ukoresheje amatara ya UV atanga ingufu hafi y'urumuri rugaragara. Amatara asanzwe ya UV avanze na gallium hamwe n'amatara asanzwe ya mercury ni amahitamo meza cyane. Amatara ya UV LED atanga 395 nm na/cyangwa 405 nm akora neza kuri sisitemu zambaraga ugereranyije na 365 nm na 385 nm. Byongeye kandi, sisitemu za UV zitanga ingufu nyinshi za UV (mW/cm2) n'ubucucike bw'ingufu (mJ/cm2) bifasha mu kuvura neza binyuze mu gusiga irangi cyangwa urwego rwo gusiga irangi.
Hanyuma, kimwe n'izindi sisitemu z'irangi zavuzwe haruguru, ni byiza ko isuzuma rikorwa mbere yo gukoresha ubuso bugomba gusigwa no kurangizwa. Menya neza mbere yo kuvurwa!
4. Ni iyihe filime ntarengwa/iciriritse yubatswe ku irangi rya UV 100%?
Ifu irangishwa ivurwa na UV mu buryo bw'umwimerere ni ifu ivurwa na UV 100%, kandi ubugari bwayo bugengwa n'imbaraga z'amashanyarazi zikurura ifu ku buso burimo kurangira. Ni byiza gusaba inama uruganda rukora ifu irangishwa na UV.
Ku bijyanye n'imyambaro y'amazi 100% ishobora kuvurwa na UV, ubugari bwa firime y'amazi ikoreshwa buzatuma habaho ubugari bwa firime yumye bungana nyuma yo kuvurwa na UV. Kugabanuka kumwe ntibishoboka ariko akenshi ntibigira ingaruka mbi cyane. Ariko, hari uburyo bwa tekiniki bugaragaza ubushobozi bwo kwihanganira ubugari bwa firime buto cyane cyangwa buto. Muri ibi bihe, gupima firime yumye mu buryo butaziguye bishobora gukorwa kugira ngo bihuze ubugari bwa firime yumye n'ubuto.
Ubunini bwa nyuma bushobora kugerwaho buterwa n'ubuhanga bw'imvange y'urumuri rushobora kuvurwa n'imirasire y'izuba n'uburyo rukozwe. Hari sisitemu ziboneka zakozwe kugira ngo zitange ubunini buciriritse buri hagati ya 0.2 mil - 0.5 mil (5µ - 15µ) n'izindi zishobora gutanga ubunini burenze santimetero 12 (12 mm). Ubusanzwe, imvange y'urumuri rushobora kuvurwa n'imirasire y'izuba ifite ubucucike bwinshi bw'urumuri, nka zimwe mu mvange y'urumuri rwa acrylate, ntishobora kugira ubunini bwinshi bw'urumuri mu cyiciro kimwe gikoreshwa. Ingano yo gucika intege iyo ivurwa izatera gucika cyane kw'imvange y'urumuri rushobora kuvurwa n'imirasire y'izuba ifite ubucucike bwinshi bw'urumuri rushobora kuvurwa n'imirasire y'izuba binyuze mu gushyiramo ibice byinshi bito no gusiga imisatsi cyangwa "B" hagati ya buri cyiciro kugira ngo habeho gufatana hagati y'urumuri.
Uburyo bwo kuvura bwakoreshejwe mu gusiga irangi rya UV ryitwa "free radical initiated." Ubu buryo bwo kuvura bwakoreshejwe mu gusiga irangi bushobora kwangirika na ogisijeni mu kirere, bigatuma umuvuduko wo kuvura ugabanuka cyangwa ukagabanya umuvuduko wo kuvura. Uku kugabanya akenshi byitwa ogisijeni kandi ni ingenzi cyane iyo ugerageza kugera ku bunini bwa firime nto cyane. Mu duce duto, ubuso bugera ku gipimo cyose cy'irangi rikoreshwa buba buri hejuru ugereranije n'ubunini bwa firime nini. Kubwibyo, ubunini bwa firime nto bushobora kwangirika cyane na ogisijeni kandi bugakira buhoro cyane. Akenshi, ubuso bw'irangi ntibuba bukize neza kandi bugaragaza imiterere y'amavuta/amavuta. Kugira ngo hirindwe kubuza ogisijeni, imyuka idafite umwuka nka azote na dioxyde de carbone ishobora kwanduzwa hejuru y'ubuso mu gihe cyo kuvura kugira ngo ikurweho ogisijeni, bityo bigatuma ikira neza kandi vuba.
5. Igitambaro cy'imirasire ya UV gisobanutse neza gite?
Irangi rya UV rivurwa 100% rishobora kugaragaza ubuziranenge bwiza kandi rikarusha irangi ryiza cyane mu nganda. Byongeye kandi, iyo rikoreshejwe ku giti, ritanga ubwiza n'ubujyakuzimu bw'ishusho. Igishimishije cyane ni sisitemu zitandukanye za aliphatic urethane acrylate zisobanutse neza kandi zidafite ibara iyo zikoreshejwe ku buso butandukanye, harimo n'ibiti. Byongeye kandi, irangi rya aliphatic polyurethane acrylate rihamye cyane kandi rirwanya ibara uko rigenda rikura. Ni ngombwa kugaragaza ko irangi rito rikwirakwiza urumuri cyane kurusha irangi ry'ubushyuhe bityo rikagira ubuziranenge buke. Ugereranyije n'izindi shimi, ariko, irangi rya UV rivurwa 100% rirangana niba ritari ryiza.
Irangi rishobora kuvurwa n’amazi riboneka muri iki gihe rishobora gukorwa kugira ngo ritange ubuziranenge budasanzwe, ubushyuhe bw’ibiti n’uburyo bwo kubikora bungana n’uburyo busanzwe bwo kurangiza. Ubushobozi bwo gukaraba, ubw’urumuri, uburyo imbaho zikora neza n’izindi mpamo z’imikorere y’irangi rishobora kuvurwa n’imirasire y’izuba riboneka ku isoko muri iki gihe ni byiza cyane iyo riturutse ku nganda zikora neza.
6. Ese hari irangi cyangwa irangi rya UV rishobora kuvurwa?
Yego, irangi ry'amabara cyangwa irangi riboneka mu bwoko bwose bw'irangi rishobora kuvurwa na UV ariko hari ibintu byo gusuzuma kugira ngo ubone umusaruro mwiza. Ikintu cya mbere kandi cy'ingenzi ni uko amabara amwe n'amwe abangamira ubushobozi bw'ingufu za UV bwo kohereza cyangwa kwinjira mu irangi rishobora kuvurwa na UV. Irangi rya elegitoronike rigaragazwa mu Ishusho ya 1, kandi bigaragara ko irangi rigaragara riba ryegeranye na UV. Irangi ni uruhererekane rudafite imirongo isobanutse (uburebure bw'imiraba) y'itandukaniro. Kubwibyo, agace kamwe kagenda kivanga mu gace kegeranye. Urebye agace k'urumuri rugaragara, hari ibyavuzwe na siyansi bivuga ko kari hagati ya 400 na 780 na 780, mu gihe ibindi bivugwa bivuga ko kari hagati ya 350 na 800 na 800 na 100. Kuri iki kiganiro, ni ngombwa gusa kumenya ko amabara amwe ashobora kubuza neza ihererekanya ry'imiraba imwe n'imwe ya UV cyangwa imirasire.
Kubera ko icyo twibandaho ari agace k'uburebure bw'urumuri rwa UV cyangwa imirasire yarwo, reka turebere hamwe ako gace mu buryo burambuye. Ishusho ya 2 igaragaza isano iri hagati y'uburebure bw'urumuri rugaragara n'amabara ajyanye narwo ashobora kuruhagarika. Ni ngombwa kandi kumenya ko ibisigazwa by'amabara bikunze kuba ku rugero rw'uburebure ku buryo ibara ritukura rishobora kuba ku rugero runini ku buryo rishobora kwinjira mu gace ka UVA. Kubwibyo, amabara y'ingenzi cyane azaba ku rugero rw'umuhondo - orange - umutuku kandi aya mabara ashobora kubangamira gukira neza.
Amabara ntabwo abangamira gusa imirasire ya UV, ahubwo ni n'ikintu cyo kwitabwaho iyo ukoresheje irangi ry'umweru rifite ibara, nka primers zishobora kuvurwa na UV na topcoat range. Tekereza uburyo irangi ry'umweru rya titanium dioxide (TiO2) rishobora kuvurwa na UV, nk'uko bigaragara ku Ishusho ya 3. TiO2 igaragaza ubushobozi bwo kuyungurura UV mu gace kose, nyamara irangi ry'umweru rishobora kuvurwa na UV riravurwa neza. Bite? Igisubizo kiri mu buryo bwitondewe n'uwakoze irangi akaba n'uwakoze irangi hamwe n'ikoreshwa ry'amatara ya UV akwiye mu kuvura. Amatara ya UV asanzwe akoreshwa asohora ingufu nk'uko bigaragara ku Ishusho ya 4.
Buri tara rigaragazwa rishingiye kuri mercure, ariko iyo ukoresheje ikindi kintu cy'icyuma kuri mercure, ibyuka bishobora kwimukira mu tundi duce tw'uburebure bw'urumuri. Mu gihe cy'ibara ry'umweru, rishobora kuvurwa na UV rishingiye kuri TiO2, ingufu zitangwa n'itara risanzwe rya mercure zizafungwa neza. Zimwe mu uburebure bw'urumuri runini rutangwa zishobora gutanga umuti ariko igihe gisabwa kugira ngo uvurwe neza gishobora kuba kidashoboka. Ariko, iyo ukoresheje gallium mu itara rya mercure, hari ingufu nyinshi zigira akamaro mu gace katafunzwe neza na TiO2. Gukoresha ubwoko bw'amatara yombi, haba binyuze mu kuvura (gukoresha gallium doped) no kuvura hejuru (gukoresha mercure isanzwe) bishobora kugerwaho (Ishusho ya 5).
Hanyuma, hagomba gukorwa irangi cyangwa irangi ry’imirasire ya UV ikoresheje ibyuma bitanga urumuri kugira ngo ingufu za UV - urugero rw’urumuri rugaragara rutangwa n’amatara - zikoreshwe neza kugira ngo zivurwe neza.
Ibindi bibazo?
Ku bijyanye n'ibibazo byose bivuka, ntugatinye kubaza umutanga serivisi zo gusiga irangi, ibikoresho n'uburyo bwo kugenzura imikorere y'ikigo ubu cyangwa mu gihe kizaza. Ibisubizo byiza birahari kugira ngo bigufashe gufata ibyemezo byiza, bitekanye kandi bitanga inyungu.
Lawrence (Larry) Van Iseghem ni perezida/umuyobozi mukuru wa Van Technologies, Inc. Van Technologies ifite uburambe bw'imyaka irenga 30 mu gusiga irangi rya UV, yatangiye ari ikigo cy’ubushakashatsi n’iterambere ariko yahindutse vuba aba uruganda rwa Application Specific Advanced Coatings™ rukorera ibikoresho byo gusiga irangi ku nganda ku isi yose. Gusiga irangi rya UV ryagiye riba iryibanze, hamwe n’izindi koranabuhanga zo gusiga irangi rya "Green", hibandwa ku mikorere ingana cyangwa irenze ikoranabuhanga risanzwe. Van Technologies ikora ikirango cya GreenLight Coatings™ cy’udupira two gusiga irangi tw’inganda hakurikijwe sisitemu yo gucunga ubuziranenge yemejwe na ISO-9001:2015. Kugira ngo umenye byinshi, surawww.greenlightcoatings.com.
Igihe cyo kohereza: 22 Nyakanga 2023
