Tekinoroji yeUV inoonekwa nevakawanda se tekinoroji "iri kuuya" yekurapa machira emaindasitiri. Kunyangwe ingave itsva kune vazhinji vari muindasitiri yemachira emaindasitiri nemotokari, yave iripo kwemakore anopfuura makumi matatu mune mamwe maindasitiri…
Tekinoroji yeUV inoonekwa nevakawanda se tekinoroji "iri kuuya" yekuchenesa machira emaindasitiri. Kunyangwe ingave itsva kune vazhinji vari muindasitiri yekupenda machira emaindasitiri nemotokari, yave iripo kwemakore anopfuura makumi matatu mune mamwe maindasitiri. Vanhu vanofamba nezvigadzirwa zvepasi zvevinyl zvakaputirwa neUV zuva rega rega, uye vazhinji vedu tinazvo mudzimba dzedu. Tekinoroji yekurapa machira eUV ine basa guru muindasitiri yemagetsi evatengi. Semuenzaniso, kana iri nharembozha, tekinoroji yeUV inoshandiswa mukufukidza mapurasitiki, machira ekudzivirira machira emagetsi emukati, zvikamu zvinonamira zveUV uye kunyangwe mukugadzirwa kwemavara anowanikwa pane mamwe mafoni. Saizvozvowo, maindasitiri efiber ye optical neDVD/CD anoshandisa machira eUV nemachira chete uye angadai asipo sezvatinoziva nhasi kudai tekinoroji yeUV isina kugonesa kukura kwavo.
Saka chii chinonzi UV medicine? Zviri nyore, inzira yekubatanidza machira ekudzivirira kuburikidza nemaitiro emakemikari anotangwa uye anotsigirwa nesimba reUV. Mukati meminiti imwe chete, machira anoshandurwa kubva pakuva mvura kuita chinhu chakasimba. Pane misiyano mikuru mune zvimwe zvezvinhu zvakagadzirwa uye mashandiro ari pamaresini ari mujira, asi izvi zvinoonekwa kune mushandisi wejira.
Midziyo yemazuva ese yekushandisa yakaita sema spray guns ane atomized air-atomized, HVLP, rotary bells, flow coating, roll coating nezvimwe zvinoshandiswa zvinoshandisa UV coatings. Zvisinei, pachinzvimbo chekupinda muovheni inopisa mushure mekushandisa coating uye solvent flash, coating yacho inoporeswa nesimba reUV rinogadzirwa nemaUV lamp systems akarongwa nenzira inovhenekera coating nesimba shoma rinodiwa kuti ripere.
Makambani nemaindasitiri anoshandisa tekinoroji yeUV akaunza kukosha kukuru nekupa kugadzirwa kwakanaka uye chigadzirwa chepamusoro ukuwo achivandudza purofiti.
Kushandisa Hunhu hweUV
Ndezvipi zvinhu zvikuru zvinogona kushandiswa? Kutanga, sezvambotaurwa, kugayiwa kwechinhu kunokurumidza uye kunogona kuitwa patembiricha yemumba. Izvi zvinoita kuti kugayiwa kwechinhu chinodzivirira kupisa kushande zvakanaka, uye kugayiwa kwese kunogona kurapwa nekukurumidza. Kugayiwa kwechinhu chinodzivirira kupisa (UV) chinhu chakakosha pakubudirira kana dambudziko (mumutsipa webhodhoro) riri renguva refu yekurapa. Zvakare, kumhanya kunobvumira maitiro ane nhanho diki. Kuenzanisa, kugayiwa kwechinhu chinoshandiswa muchoto kunoda kubikwa kwemaminitsi makumi matatu nekumhanya kwe15 fpm kunoda 450 ft yechinhu chinotakura mvura muchoto, nepo kugayiwa kwechinhu chinodzivirira kupisa (UV) kungangoda 25 ft (kana pasi) yechinhu chinotakura mvura.
Kubatana kweUV kunogona kukonzera kuti jira rigare kwenguva refu. Kunyangwe jira richigona kugadzirwa kuti rive rakaoma pakushandisa senge pasi, rinogonawo kugadzirwa kuti rive rakapfava. Mhando dzese dzejira, dzakaoma uye dzakapfava, dzinoshandiswa mukushandisa mota.
Zvinhu izvi ndizvo zvinoita kuti tekinoroji yeUV irambe ichivandudzwa uye ichipinda mumotokari. Ehe, kune matambudziko ane chekuita neUV inoporesa mapurasitiki eindasitiri. Chinhu chikuru chinotarisirwa nemuridzi wegadziriro iyi kugona kuisa nzvimbo dzese dzezvikamu zvakaoma pasi pesimba reUV. Pamusoro pepurasitiki yese inofanira kuiswa pasi pesimba reUV rinodiwa kuti igadzirise jira racho. Izvi zvinoda kuongororwa kwakanyatsojeka kwechikamu chacho, kurongwa kwezvikamu, uye kurongeka kwemwenje kuti ibvise nzvimbo dzine mumvuri. Zvisinei, kwave nekuvandudzwa kwakakosha mumarambi, zvinhu zvakagadzirwa uye zvigadzirwa zvakagadzirwa zvakakunda zvipingamupinyi zvakawanda izvi.
Mwenje weMotokari weKutungamira
Mashandisirwo chaiwo emotokari uko UV yave tekinoroji yakajairika ari muindasitiri yemwenje yemotokari, uko machira eUV ave achishandiswa kwemakore anopfuura 15 uye ikozvino ari 80% yemusika. Marambi emusoro anoumbwa nezvinhu zviviri zvikuru zvinoda kuputirwa - lenzi yepolycarbonate neimba yereflector. Lenzi inoda coating yakaoma kwazvo, inodzivirira kukwenya kuti idzivirire polycarbonate kubva kumamiriro ekunze uye kushungurudzwa kwemuviri. Imba yereflector ine UV basecoat (primer) inovhara substrate uye inopa nzvimbo yakapfava kwazvo yesimbi. Musika wereflector basecoat ikozvino warapwa ne100% UV. Zvikonzero zvikuru zvekushandiswa kwave kuri nani mukugadzirwa, hunyanzvi hudiki uye hunhu hwakanaka hwereflector.
Kunyangwe machira anoshandiswa akapiswa neUV, ane solvent. Zvisinei, yakawanda yemvura inopfapfaidzwa inodzoserwa uye inodzokororwazve mukuita kwayo, zvichiita kuti ive nekushanda kwakanaka kwe100%. Chinangwa chekuvandudza mune ramangwana ndechekuwedzera zvinhu zvakasimba kusvika 100% uye kubvisa kudiwa kwemushonga unooxidizer.
Zvikamu zvepurasitiki zvekunze
Imwe yenzira dzisinganyanyo zivikanwa ndeyekushandisa UV clearcoat inorapika pamusoro pemamolding emuviri akaumbwa neruvara. Pakutanga, iyi coat yakagadzirwa kuderedza yero pakuonekwa kwekunze kwemamolding emuviri wevinyl. Coat yacho yaifanira kunge yakasimba uye yakachinjika kuti irambe yakanamatira isina kutsemuka kubva pazvinhu zvinorova molding. Zvinonyanya kukosha pakushandisa UV coatings mukushandisa uku kumhanya kwekugadzirisa (small process footprint) uye hunhu hwepamusoro hwekushanda.
Mapaneru eMuviri weSMC
Sheet molding compound (SMC) chinhu chakagadzirwa nesimbi chakashandiswa panzvimbo pesimbi kwemakore anopfuura makumi matatu. SMC ine resin yepolyester yakazadzwa negirazi yakakandwa mumapepa. Mapepa aya anozoiswa muchimiro chekumanikidza uye ogadzirwa kuita mapaneru emuviri. SMC inogona kusarudzwa nekuti inoderedza mari yekushandisa maturusi ekugadzira zvinhu zvidiki, inoderedza huremu, inopa kupwanyika uye kuramba ngura, uye inopa rusununguko rwakakura kune vanogadzira zvishongo. Zvisinei, chimwe chezvinetso pakushandisa SMC kupedzisa chikamu chiri mufekitari yekuunganidza. SMC isubstrate ine maburi. Kana panel yemuviri, ikozvino iri mumotokari, ichipinda muovheni yependi yeclearcoat, dambudziko rependi rinozivikanwa se "porosity pop" rinogona kuitika. Izvi zvinoda kugadziriswa kwenzvimbo, kana kana paine "maburi" akakwana, kupendwa kwakazara kweganda remuviri.
Makore matatu apfuura, mukuedza kubvisa dambudziko iri, BASF Coatings yakatengesa UV/thermal hybrid sealer. Chikonzero chekushandisa mushonga wehybrid ndechekuti overspray inorapwa panzvimbo dzisina kukosha. Danho guru rekubvisa "porosity pops" inyaya yeUV energy, zvichiwedzera zvakanyanya cross-link density ye exposed coating panzvimbo dzakakosha. Kana sealer ikasawana simba shoma reUV, coating yacho inoramba ichipfuura zvimwe zvinodiwa pakushanda kwayo.
Kushandiswa kwetekinoroji yekubvisa kaviri panguva ino kunopa hunhu hutsva hwekuputira nekushandisa UV curing ukuwo zvichipa chinhu chekuchengetedza chekuputira mukushandisa kwakakosha. Iyi application haingoratidzi chete kuti tekinoroji yeUV inogona kupa hunhu hwakasiyana hwekuputira, asi inoratidzawo kuti sisitimu yekuputira yakaputirwa neUV inoshanda pazvikamu zvemotokari zvinodhura zvakanyanya, zvine huwandu hwakawanda, zvakakura uye zvakaoma. Iyi coating yakashandiswa pamapaneru emuviri angangoita miriyoni imwe.
Koti reOEM
Zvinofungidzirwa kuti chikamu chemusika we tekinoroji yeUV chinoonekwa zvakanyanya ndechezvipfeko zvekunze zvemotokari zveClass A. Ford Motor Company yakaratidza tekinoroji yeUV pamotokari yemuenzaniso, Concept U, paNorth American International Auto Show muna 2003. Tekinoroji yekuputira yakaratidzwa yaive clearcoat yakacheneswa neUV, yakagadzirwa uye yakapihwa neAkzo Nobel Coatings. Kuputira uku kwakaiswa uye kwakacheneswa pamusoro pezvikamu zvemuviri zvakagadzirwa nezvinhu zvakasiyana-siyana.
PaSurcar, musangano mukuru wepasi rose wezvekupfeka zvemotokari unoitwa gore rega rega muFrance, DuPont Performance Coatings neBASF vakapa mharidzo muna 2001 na2003 pamusoro pehunyanzvi hweUV hwekuvhara machira emotokari. Chinokonzeresa budiriro iyi ndechekuvandudza nyaya huru yekugutsikana kwevatengi yependi - kukwenya nekuramba kutsvuka. Makambani ese ari maviri akagadzira zvekufukidza zvehybrid-cure (UV & thermal). Chinangwa chekutevera nzira yehunyanzvi hwehybrid ndechekuderedza kuomarara kwehurongwa hwekurapa hweUV uku vachizadzisa hunhu hwebasa ravo.
DuPont neBASF vese vakaisa mitsetse yekuedza panzvimbo dzavo. Mitsetse yeDuPont muWuppertal ine kugona kurapa muviri wese. Makambani ekugadzira machira haangofanire kuratidza kushanda zvakanaka kwekuputira chete, asiwo anofanira kuratidza mhinduro yekupenda. Chimwe chezvakanakira zveUV/thermal curing zvakataurwa neDuPont ndechekuti kureba kwechikamu che clearcoat chemutsetse wekupedzisa kunogona kuderedzwa ne50% nekungoderedza kureba kweovheni yekupisa.
Kubva kudivi reinjiniya, Dürr System GmbH yakapa mharidzo pamusoro pepfungwa yemuchina wekugadzira UV curating. Chimwe chezvinhu zvakakosha mupfungwa idzi kwaive nzvimbo yemuchina wekugadzira UV curating mumutsetse wekupedzisa. Mhinduro dzakagadzirwa neinjiniya dzaisanganisira kuwana marambi eUV usati watanga, mukati kana mushure meovheni yekupisa. Dürr anofunga kuti kune mhinduro dzeinjiniya dzesarudzo zhinji dzemuchina wekugadzira dzinosanganisira maformula ari kugadzirwa. Fusion UV Systems yakapawo chishandiso chitsva - kuenzanisa komputa maitiro ekugadzira UV emotokari. Kuvandudzwa uku kwakaitwa kutsigira nekukurumidzisa kushandiswa kwetekinoroji yeUV-curating mumafekitori ekugadzira.
Mamwe Mapurogiramu
Basa rekugadzira richiri kuenderera mberi remachira epurasitiki anoshandiswa mukati memotokari, machira emavhiri emhando yepamusoro uye machira ekuvhara mavhiri, machira ekudzivirira pamusoro pezvikamu zvakakura zvakagadzirwa neruvara uye zvezvikamu zvepasi pehood. Maitiro eUV ari kuramba achisimbiswa sepuratifomu inochengetedza ngura yakasimba. Chiri kuchinja ndechekuti machira eUV ari kukwira kusvika kuzvikamu zvakaoma uye zvine mutengo wakakwira. Kugadzikana uye kushanda kwenguva refu kwemaitiro aya kwakaratidzwa nekushandiswa kwemwenje wemberi. Yakatanga makore anopfuura makumi maviri apfuura uye ikozvino ndiyo chiyero cheindasitiri.
Kunyange zvazvo tekinoroji yeUV ine chinhu chinoonekwa nevamwe sechinhu "chinonakidza", icho indasitiri inoda kuita nehunyanzvi uhwu ndechekupa mhinduro dzakanakisa kumatambudziko evanopedzisa. Hapana anoshandisa tekinoroji nekuda kwetekinoroji. Inofanira kupa kukosha. Kukosha kunogona kuuya muchimiro chekuvandudzwa kwekubudirira kwakabatana nekukasira kwekugadzirisa. Kana kuti kunogona kubva pazvinhu zvakavandudzwa kana zvitsva zvausina kukwanisa kuwana netekinoroji dziripo. Inogona kubva pamhando yepamusoro yekutanga nekuti pendi yacho yakavhurika kune tsvina kwenguva pfupi. Inogona kupa nzira yekuderedza kana kubvisa VOC panzvimbo yako. Tekinoroji iyi inogona kupa kukosha. Indasitiri yeUV nevanopedzisa vanofanirwa kuramba vachishanda pamwe chete kugadzira mhinduro dzinovandudza mari yemugadziri.
Nguva yekutumira: Kurume-14-2023
