Ultraviolet rays tsis yog tsuas yog tsim kev puas tsuaj rau tib neeg lub cev, tab sis kev puas tsuaj rau cov khoom yuav tsis raug underestimated! Thaum lub sij hawm ua, khaws cia lossis siv cov khoom siv lossis cov khoom, vim muaj kev cuam tshuam ntawm lwm yam xws li tshav kub, lub teeb, oxygen, mechanical stress, ozone, teeb meem hlau ions, hluav taws xob, thiab lwm yam., lub cev lossis tshuaj hloov pauv tshwm sim hauv cov khoom, thiab kev ua tau zoo deteriorates. Maj mam poob nqi siv.
Cov hom kev puas tsuaj los ntawm ultraviolet rays muaj xws li fading, gloss tsis, hmoov, tawg, tawg, plooj, blistering, embrittlement, lub zog txo thiab oxidation.
Cov khoom lag luam koom nrog kuj yog dav heev, xws li: roj hmab, yas thiab lawv cov khoom, coatings, xim, dyes, fabrics, luam ntawv thiab ntim, adhesives, hlau, electronics, electroplating, tshuaj pleev ib ce, thiab lwm yam.
Ultraviolet rays nyob rau hauv tshav ntuj yog lub ntsiab ua rau photodegradation thiab photoaging ntawm cov khoom. Qhov no yog vim qhov luv luv wavelength, lub zog ntau dua thiab muaj zog dua qhov muaj peev xwm nkag mus. Nyob rau hauv lub hnub ci spectrum (raws li qhia hauv qab no), ultraviolet rays muaj luv wavelengths. Lub sijhawm no, lub neej ntawm cov khoom tuaj yeem raug soj ntsuam los ntawm kev kuaj kev laus ntawm ultraviolet kom ntseeg tau tias cov khoom zoo.
Ultraviolet aging test yog ib txoj hauv kev los ntsuas qhov tsis kam ntawm cov ntaub ntawv tshiab rau lub teeb ultraviolet. Nws feem ntau yog kuaj hauv chav kuaj los ntawm kev ntsuas qhov ntsuas hluav taws xob nrawm nrawm. Tsuas yog ob peb lub lis piam lossis ntau lub hlis, cov ntaub ntawv rov tsim dua thiab txhim khu kev qha kev laus tuaj yeem tau txais los ntawm kev kuaj kev laus UV; nws lub teeb luv luv UV lub teeb thiab lub voj voog condensation tuaj yeem simulate qhov kev puas tsuaj rau cov ntaub ntawv los ntawm tshav ntuj, dej lwg, thiab nag. nyhuv.
Kev kuaj kev laus ntawm UV feem ntau simulates qhov cuam tshuam ntawm ultraviolet lub teeb nyob rau hauv tshav ntuj ntawm cov khoom.
Nws tseem tuaj yeem tsim kho qhov kev puas tsuaj los ntawm nag thiab dej lwg;
Qhov kev ntsuam xyuas yog ua los ntawm kev nthuav tawm cov khoom siv los kuaj rau lub voj voog hloov pauv ntawm lub hnub ci thiab noo noo thaum nce qhov kub thiab txias; UV fluorescent teeb yog siv los simulate lub hnub ci, thaum cov teebmeem ntawm cov dej noo kuj tuaj yeem simulated los ntawm condensation los yog tshuaj tsuag.
Hom UV teeb hom
UVA-340 simulates ib feem ntawm lub hnub ci ultraviolet thiab feem ntau yog siv rau kev kuaj duab ntawm cov khoom sab nraum zoov;
UVA-351 simulates qhov ultraviolet ib feem ntawm lub hnub ci dhau los ntawm lub qhov rais iav, thiab feem ntau yog siv rau kev kuaj duab ntawm cov khoom siv sab hauv tsev;
UVB-313EL: Siv dav rau kev sim ceev ceev, txuag lub sijhawm ntawm cov khoom siv ruaj khov, nws yuav ua rau cov ntaub ntawv laus zuj zus tuaj thiab qee zaum ua rau cov txiaj ntsig txawv txav. Cov neeg siv khoom pom zoo yuav tsum tau txais thaum siv nws.
Cia peb muab ib qho piv txwv yooj yim ntawm kev kuaj kev laus ntawm UV kom txhua tus tuaj yeem nkag siab zoo dua qhov kev sim:
Maxim Testing Laboratory tau ua cov ntaub ntawv kuaj kev laus UV: tus neeg siv khoom xa qee cov qauv ntawm cov khoom siv PVC, uas tau siv los ua cov iav iav qhov rais, thiab yuav tsum tau kuaj UV aging los xyuas qhov kev ntseeg tau ntawm cov khoom.
Kev ntsuas ib puag ncig: ambient kub 24.2 degree, av noo 53% RH
Kev ntsuas tus qauv: ASTM G-154-2016 Tus qauv rau kev sim rau cov khoom tsis yog xim hlau raug ultraviolet teeb los ntawm cov khoom siv fluorescent
Txoj Kev Xeem:
Irradiance: 0.89W/m; wavelength: 340nm; Lub sij hawm raug: (60 ± 3 degree) UV irradiation rau 8h ntawm lub vaj huam sib luag dub;
(50 ± 3 degree) condensation ntawm lub vaj huam sib luag dub rau 4h;
Duration: 100 teev;
Ib feem ntawm cov qauv yog qhwv nrog aluminium ntawv ci thiab lwm qhov tau nthuav tawm. Tom qab qhov kev xeem, sib piv daim npav grey nruab nrab ntawm qhov qhwv thiab qhov raug nthuav tawm los ntsuas qib grey daim npav.
Los ntawm kev soj ntsuam cov qauv tom qab kev sim, cov txiaj ntsig hauv qab no tau txais:
Cov txiaj ntsig tau pom tias tom qab qhov kev sim, tsis muaj qhov pom tseeb xim hloov ntawm qhov chaw ntawm cov qauv, uas ua tau raws li qhov yuav tsum tau muaj kev ntseeg tau raws li cov qauv txheej txheem.
Kev kuaj kev laus UV tuaj yeem ntsuas cov khoom muaj peev xwm tiv taus lub hnub ci hluav taws xob thiab cov teebmeem thaum tawm sab nraum zoov yam tsis muaj vaj tse. Test tsis: kub, av noo, teeb hom wavelength, hluav taws xob siv, lub teeb-tsub voj voog, ntev.
Thaum kawg, vim muaj ntau cov qauv rau kev kuaj kev laus UV, ntau yam uas yog cov qauv tshwj xeeb rau ib hom khoom, peb tau txuas ntxiv thiab sau cov qauv dav dav rau koj siv:
Qee cov qauv dav dav rau kev kuaj kev laus UV
ISO 4892-3 Cov txheej txheem kuaj yas rau kev kuaj pom lub teeb pom kev zoo Part 3 Fluorescent ultraviolet teeb
GBT 16422.3 Plastics Laboratory light source test method Part 3 Fluorescent ultraviolet teeb
ASTM G-151 Tus Qauv rau Kev Ntsuas Cov Txheej Txheem rau Kev Tshaj Tawm ntawm Cov Khoom Tsis yog xim hlau rau Kev Ntsuas Cov Khoom Siv Hluav Taws Xob Siv Cov Khoom Siv Hluav Taws Xob
ASTM G-154 Standard Test Method for Nonmetallic Materials Exposed to Ultraviolet Light from Fluorescent Devices
British Standard BS 2782: Part 5 Method 540B (Exposure Methods to Laboratory Light Sources)
SAE J2020 Accelerated Exposure Testing of Automotive Exterior Trim Parts nrog Fluorescent UV / Condensation Equipment
ASTM D4587 Cycle 4 Exposure Procedure for Fluorescent Ultraviolet Condensation of Paints and Related Coatings
Peb UV aging test chamber simulates cov nyhuv ntawm tiag UV lub teeb tshuaj xyuas ntawm koj cov khoom los pab koj kuaj koj cov khoom,
Yog nej leej twg muaj kev txaus siab no thov txhob yig tiv tauj kuv!
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