Cov khoom ntim tshuaj pleev ib ce feem ntau yog yas, iav thiab ntawv. Thaum siv, ua thiab khaws cia cov yas, vim muaj ntau yam sab nraud xws li lub teeb, oxygen, cua sov, hluav taws xob, tsw ntxhiab, nag, pwm, kab mob, thiab lwm yam, cov qauv tshuaj ntawm cov yas raug puas tsuaj, ua rau lawv poob. thawj cov khoom zoo heev. Qhov tshwm sim no feem ntau hu ua kev laus. Lub ntsiab manifestations ntawm yas aging yog discoloration, kev hloov nyob rau hauv lub cev lub zog, kev hloov nyob rau hauv txhua yam khoom thiab kev hloov nyob rau hauv hluav taws xob zog.
1. Keeb kwm ntawm kev laus yas
Nyob rau hauv peb lub neej, qee cov khoom raug inevitably raug rau lub teeb, thiab ultraviolet lub teeb nyob rau hauv tshav ntuj, ua ke nrog kub, nag thiab dej lwg, yuav ua rau cov khoom muaj kev laus phenomena xws li lub zog poob, tawg, tev, dullness, discoloration, thiab hmoov. Hnub ci thiab av noo yog qhov tseem ceeb ua rau cov khoom laus. Lub hnub ci tuaj yeem ua rau ntau cov ntaub ntawv degrade, uas cuam tshuam rau qhov rhiab heev thiab spectrum ntawm cov ntaub ntawv. Txhua yam khoom teb txawv rau cov spectrum.
Feem ntau cov kev laus ntawm cov yas nyob rau hauv ib puag ncig ntuj yog tshav kub thiab ultraviolet lub teeb, vim hais tias ib puag ncig uas cov ntaub ntawv yas feem ntau raug rau yog tshav kub thiab tshav ntuj (ultraviolet light). Kawm txog kev laus ntawm cov yas los ntawm ob hom kev ib puag ncig no yog qhov tseem ceeb tshwj xeeb rau kev siv ib puag ncig tiag tiag. Nws qhov kev ntsuam xyuas kev laus tuaj yeem muab faib ua ob pawg: sab nraum zoov raug thiab kuaj nrawm nrawm.
Ua ntej cov khoom yuav muab tso rau hauv loj-scale siv, lub teeb aging sim yuav tsum tau nqa tawm los soj ntsuam nws aging kuj. Txawm li cas los xij, kev laus tej zaum yuav siv sij hawm ntau xyoo los yog ntev dua kom pom cov txiaj ntsig, uas yog pom tseeb tsis nyob rau hauv txoj kab nrog cov khoom siv tiag tiag. Ntxiv mus, cov huab cua nyob rau hauv ntau qhov chaw sib txawv. Cov khoom siv tib yam yuav tsum tau sim nyob rau hauv ntau qhov chaw, uas ua rau kom tus nqi kuaj tau zoo heev.
2. Kev kuaj pom sab nraum zoov
Sab nraum zoov ncaj qha raug hais txog kev raug tshav ntuj ncaj qha thiab lwm yam kev nyab xeeb. Nws yog txoj hauv kev ncaj qha tshaj plaws los ntsuas huab cua tsis kam ntawm cov ntaub ntawv yas.
Qhov zoo:
Tus nqi qis
Zoo sib xws
Yooj yim thiab yooj yim rau kev khiav lag luam
Qhov tsis zoo:
Feem ntau lub voj voog ntev heev
Ntiaj teb no kev nyab xeeb ntau haiv neeg
Cov qauv sib txawv muaj qhov sib txawv ntawm cov huab cua sib txawv
3. Laboratory accelerated aging test method
Laboratory light aging test tsis tau tsuas yog ua kom lub voj voog luv xwb, tab sis kuj muaj qhov rov ua tau zoo thiab siv ntau yam. Nws yog ua tiav nyob rau hauv lub chaw soj nstuam thoob plaws hauv cov txheej txheem, yam tsis xav txog qhov kev txwv ntawm thaj chaw, thiab nws yooj yim rau kev khiav lag luam thiab muaj zog controllability. Simulating qhov tseeb teeb pom kev zoo ib puag ncig thiab siv dag zog lub teeb aging txoj kev tuaj yeem ua tiav lub hom phiaj ntawm kev soj ntsuam cov khoom siv sai. Cov txheej txheem tseem ceeb yog siv los kuaj xyuas ultraviolet lub teeb aging, xenon teeb aging test thiab carbon arc teeb aging.
1. Xenon lub teeb aging test method
Xenon teeb aging test yog ib qho kev sim uas simulates tag nrho cov hnub ci spectrum. Xenon teeb aging test tuaj yeem simulate ntuj tsim huab cua hauv lub sijhawm luv luv. Nws yog ib qho tseem ceeb txhais tau tias los tshuaj xyuas cov qauv thiab txhim kho cov khoom muaj pes tsawg leeg hauv cov txheej txheem ntawm kev tshawb fawb thiab kev tsim khoom, thiab nws kuj yog ib feem tseem ceeb ntawm kev tshuaj xyuas cov khoom zoo.
Xenon teeb kev laus cov ntaub ntawv tuaj yeem pab xaiv cov ntaub ntawv tshiab, hloov cov ntaub ntawv uas twb muaj lawm, thiab ntsuas seb cov qauv hloov pauv cuam tshuam li cas rau cov khoom siv tau ntev.
Lub hauv paus ntsiab lus: xenon teeb kuaj chamber siv xenon teeb los simulate cov teebmeem ntawm lub hnub, thiab siv condensed noo noo los simulate los nag thiab lwg. Cov khoom siv kuaj tau muab tso rau hauv lub voj voog ntawm kev hloov lub teeb thiab noo noo ntawm qhov kub thiab txias rau kev sim, thiab nws tuaj yeem tsim cov teeb meem tshwm sim sab nraum zoov rau ntau lub hlis lossis ntau xyoo hauv ob peb hnub lossis ntau lub lis piam.
Daim ntawv thov xeem:
Nws tuaj yeem muab kev sib raug zoo ib puag ncig simulation thiab kev sim nrawm rau kev tshawb fawb tshawb fawb, kev tsim khoom thiab kev tswj kom zoo.
Nws tuaj yeem siv rau kev xaiv cov ntaub ntawv tshiab, txhim kho cov ntaub ntawv uas twb muaj lawm lossis kev ntsuam xyuas ntawm kev ua haujlwm ntev tom qab kev hloov pauv ntawm cov khoom muaj pes tsawg leeg.
Nws tuaj yeem ua tau zoo simulate cov kev hloov pauv los ntawm cov ntaub ntawv raug tshav ntuj nyob rau hauv ib puag ncig sib txawv.
2. UV fluorescent lub teeb aging test method
Kev kuaj kev laus UV feem ntau simulates cov nyhuv degradation ntawm UV teeb nyob rau hauv tshav ntuj ntawm cov khoom. Nyob rau tib lub sijhawm, nws tseem tuaj yeem tsim kev puas tsuaj los ntawm nag thiab dej lwg. Qhov kev sim no yog ua los ntawm kev nthuav tawm cov khoom siv los kuaj hauv kev tswj kev sib cuam tshuam ntawm lub hnub ci thiab noo noo thaum nce qhov kub thiab txias. Ultraviolet fluorescent teeb yog siv los simulate tshav ntuj, thiab lub zog ntawm noo noo kuj yuav simulated los ntawm condensation los yog txau.
Lub teeb fluorescent UV yog lub teeb qis mercury nrog lub wavelength ntawm 254nm. Vim qhov sib ntxiv ntawm phosphorus coexistence los hloov nws mus rau hauv lub wavelength ntev, lub zog faib ntawm fluorescent UV teeb nyob ntawm qhov emission spectrum generated los ntawm phosphorus coexistence thiab diffusion ntawm iav raj. Fluorescent teeb feem ntau muab faib ua UVA thiab UVB. Daim ntawv thov raug siv los txiav txim siab seb hom teeb UV yuav tsum siv li cas.
3. Carbon arc teeb lub teeb aging test method
Cov pa roj carbon arc teeb yog cov cuab yeej qub. Cov cuab yeej carbon arc yog thawj zaug siv los ntawm German hluavtaws dye chemists los ntsuas lub teeb nrawm ntawm dyed textiles. Carbon arc teeb tau muab faib ua cov kaw thiab qhib cov roj carbon arc teeb. Txawm hais tias hom roj carbon arc teeb, nws cov spectrum txawv heev ntawm lub hnub ci spectrum. Vim muaj keeb kwm ntev ntawm qhov project technology, thawj lub teeb pom kev zoo simulation kev laus siv cov cuab yeej siv no, yog li cov qauv no tseem tuaj yeem pom nyob rau hauv cov qauv ua ntej, tshwj xeeb tshaj yog nyob rau hauv Nyiv cov qauv thaum ntxov, qhov twg carbon arc teeb tshuab feem ntau siv los ua lub teeb ci. aging test method.
Post lub sij hawm: Aug-20-2024