Kev ntsuam xyuas ntsev tsuag yog ib qho tseem ceeb hauv kev ntsuam xyuas qhov kev tiv thaiv corrosion ntawm cov ntaub ntawv thiab cov txheej txheem, kom ntseeg tau lawv cov kav ntev thiab kev ntseeg siab hauv ntau qhov chaw. Nyob rau hauv no blog, peb mam li delve rau hauv tus txheej txheem xeem cov txheej txheem rau antsev tsuag chamber, muab kev nkag siab txog cov txheej txheem, qhov tseem ceeb, thiab kev siv ntawm cov kev xeem no.
Dab tsi yog Kev Ntsuas Tshuaj Tsuag
Kev kuaj ntsev ntsev, tseem hu ua ntsev pos test, yog ib txoj hauv kev siv los ntsuas qhov kev tiv thaiv corrosion ntawm cov ntaub ntawv thiab txheej. Nws simulates ib puag ncig corrosive los ntawm kev nthuav tawm cov qauv mus rau qhov zoo ntawm cov dej ntsev tov. Qhov kev ntsuas nrawm no pab kwv yees seb cov khoom siv yuav tiv taus li cas thaum lub sijhawm hnyav. Cov kauj ruam ntawm kev ntsuas ntsev tsuag yog raws li nram no:
Kev npaj cov qauv
Ua ntej kev sim, cov qauv tau ua tib zoo tu thiab npaj kom tshem tawm tej yam kab mob. Cov kauj ruam no ua kom ntseeg tau tias cov txiaj ntsig ntawm qhov kev sim no yog qhov tseeb thiab rov tsim dua nyob rau ntau qhov kev sim.
Test Solution
Qhov kev sim no suav nrog kev nthuav tawm cov qauv mus rau kev tswj hwm huab cua ntawm 5% sodium chloride (NaCl) cov tshuaj yaj hauv dej deionized. Cov pH ntawm cov tshuaj yog kho kom poob rau hauv ib qho tshwj xeeb (feem ntau ntawm 6.5 thiab 7.2) kom tswj tau qhov sib xws hauv kev sim.
Cov xwm txheej Chamber
A ntsev tsuag chambermuab kev tswj ib puag ncig tsim nyog rau kev xeem. Feem ntau teem ntawm qhov kub ntawm 35 degree (95 degree F), lub chamber generates ib tug zoo pos huab ntawm ntsev tov. Qhov no pos huab nyob rau hauv cov qauv, replicating lub corrosive los ntawm ib tug marine los yog industrial cheeb tsam.
Duration ntawm Kev Xeem
Lub sij hawm ntawm cov tshuaj tsuag ntsev sib txawv nyob ntawm seb cov khoom raug kuaj thiab cov qauv tshwj xeeb tau ua raws. Kev ntsuam xyuas tuaj yeem muaj txij li ob peb teev mus rau ob peb lub lis piam, tso cai rau kev ntsuam xyuas dav dav ntawm cov khoom siv tiv thaiv corrosion thaum lub sijhawm.
Kev ntsuam xyuas
Tom qab kis tau, cov qauv ua tib zoo tshuaj xyuas cov cim qhia ntawm corrosion. Kev ntsuam xyuas suav nrog kev ntsuas qhov ntev thiab qhov hnyav ntawm txhua qhov corrosion uas tau tshwm sim. Cov ntaub ntawv no yog qhov tseem ceeb rau kev txiav txim siab qhov ua tau zoo ntawm cov txheej txheem tiv thaiv los yog qhov kev tiv thaiv corrosion ntawm cov khoom nws tus kheej.
Dab tsi yog Cov Qauv Txheej Txheem rau Kev Ntsuas Tshuaj Tsuag?
Ntau tus qauv thoob ntiaj teb tswj hwm cov txheej txheem tshuaj tsuag ntsev kom paub meej thiab sib piv ntawm cov txiaj ntsig thoob plaws kev lag luam thiab cheeb tsam sib txawv. Qee qhov kev lees paub dav dav tshaj plaws suav nrog:
ASTM B117
ASTM B117 yog ib qho ntawm cov qauv siv ntau tshaj plaws rau kev kuaj ntsev ntsev thoob ntiaj teb. Nws muaj cov lus qhia dav dav rau kev npaj ua qauv, tswj xyuas cov xwm txheej hauv chav sim, suav nrog kev ua haujlwm ntawm covntsev tsuag chamber, thiab kev ntsuam xyuas cov txiaj ntsig kev xeem. Cov qauv no tau siv dav hauv kev lag luam xws li automotive, aerospace, thiab marine, qhov twg corrosion kuj tseem ceeb heev.
ISO 9227 Kev Tswj Xyuas
Tsim los ntawm International Organization for Standardization (ISO), ISO 9227 muab kev lees paub thoob ntiaj teb rau kev kuaj ntsev ntsev. Nws qhia txog qhov concentration ntawm cov ntsev ntsev, qhov kub thiab txias, av noo, thiab lwm yam kev ntsuas ntsuas kom ntseeg tau tias cov txiaj ntsig zoo sib xws thiab rov tsim dua nyob thoob plaws cov chaw soj nstuam sib txawv thiab thaj chaw.
TIAB SA 2371
JIS Z 2371 yog tus qauv tsim los ntawm Nyiv Cov Qauv Txheej Txheem Txheej Txheem, siv dav hauv Nyiv thiab lwm lub tebchaws Esxias. Nws qhia txog cov xwm txheej tshwj xeeb thiab cov kev ntsuas kev ntsuas rau kev ntsuas tshuaj ntsev, kom ntseeg tau tias ua raws li cov cai hauv cheeb tsam thiab kev nyab xeeb.
MIL-STD-810G
MIL-STD-810G yog tus qauv tub rog uas tsim cov txheej txheem kuaj ib puag ncig rau cov khoom siv tub rog thiab cov khoom siv. Nws suav nrog cov lus qhia rau kev ntsuas ntsev pos huab los ntsuas qhov kev tiv thaiv corrosion ntawm cov ntaub ntawv thiab cov txheej txheem siv hauv kev siv tub rog. Cov txheej txheem no pab xyuas kom meej tias cov cuab yeej siv tub rog tuaj yeem tiv taus qhov chaw ua haujlwm hnyav.
TS EN ISO 9227 Kev Tswj Xyuas Kev Nyab Xeeb
Lwm tus qauv tseem ceeb yog DIN EN ISO 9227, uas yog European version ntawm ISO 9227. Nws muab kev sib haum xeeb rau kev ua cov tshuaj tsuag ntsev hauv Tebchaws Europe, ua raws li cov qauv ISO thaum hais txog cov kev xav tau thiab cov kev xav tau hauv cheeb tsam.
Qhov Kev Ntsuas Tshuaj Txhaum Cai Siv nyob qhov twg?
Kev ntsuas ntsev ntsev yog siv dav hauv kev lag luam sib txawv, txhua tus muaj cov cai tshwj xeeb thiab cov qauv. Antsev tsuag chamberua lub luag haujlwm tseem ceeb hauv kev tsim cov kev tswj hwm ib puag ncig tsim nyog los ua cov kev sim no. Kev nkag siab txog nws cov ntawv thov tuaj yeem muab kev pom dav dav ntawm nws qhov tseem ceeb thiab siv tau.
Automotive Kev Lag Luam
Hauv kev lag luam tsheb, cov khoom siv feem ntau raug mob hnyav, nrog rau txoj kev ntsev thiab dej noo. Kev ntsuas ntsev ntsev pab xyuas kom meej tias qhov chaw xws li lub cev vaj huam sib luag, fasteners, thiab cov khoom hauv qab yog tiv taus corrosion, ua kom lub tsheb ntev thiab kev nyab xeeb.
Kev lag luam marine
Marine ib puag ncig yog corrosive heev vim raug dej ntsev. Kev ntsuam xyuas ntsev ntsev yog qhov tseem ceeb hauv kev ntsuas qhov kev tiv thaiv corrosion ntawm cov khoom siv hauv cov nkoj, nkoj, thiab cov qauv sab nrauv, kom ntseeg tau lawv cov kav ntev thiab kev ntseeg siab.
Kev lag luam kev tsim kho
Hauv kev tsim kho, cov ntaub ntawv zoo li hlau thiab txhuas yog siv nyob rau hauv qhov chaw sab nraum zoov uas lawv tuaj yeem raug ya raws thiab ntsev. Kev ntsuas ntsev ntsev pab xaiv cov khoom siv uas yuav tiv taus cov xwm txheej no, ua kom lub neej ntev thiab kev nyab xeeb ntawm cov qauv.
Cov khoom siv hluav taws xob thiab hluav taws xob
Corrosion tuaj yeem cuam tshuam rau kev ua haujlwm ntawm cov khoom siv hluav taws xob thiab hluav taws xob. Kev ntsuam xyuas ntsev ntsev yog siv los ntsuas qhov kev tiv thaiv ntawm cov khoom siv no rau corrosive ib puag ncig, ua kom lawv muaj kev ntseeg siab hauv ntau yam kev siv.
Coatings thiab Paints
Kev tiv thaiv txheej thiab xim yog siv rau cov ntaub ntawv los txhim kho lawv cov corrosion kuj. Cov tshuaj tsuag ntsev tshuaj ntsuam xyuas qhov ua tau zoo ntawm cov txheej txheem no, pab txhim kho cov kev tiv thaiv zoo tshaj.
Xaus
Kev ntsuam xyuas ntsev ntsev yog ib txoj hauv kev tseem ceeb hauv kev ntsuas qhov kev tiv thaiv corrosion ntawm cov khoom thiab cov txheej txheem. Los ntawm kev nkag siab txog cov txheej txheem ntsuas tus qauv, nws qhov tseem ceeb, thiab nws cov ntawv thov, kev lag luam tuaj yeem ua kom cov kav ntev thiab kev ntseeg siab ntawm lawv cov khoom. Seb nyob rau hauv lub tsheb, marine, kev tsim kho, los yog electronics kev lag luam, lubntsev tsuag chamberplays lub luag haujlwm tseem ceeb hauv kev tswj kom zoo thiab kev ua haujlwm zoo.
Yog tias koj xav paub ntau ntxiv txog hom Salt Spray Apparatus, txais tos hu rau pebinfo@libtestchamber.com.
Cov ntaub ntawv
1. ASTM International. (2021). ASTM B117-21 Tus Qauv Ua Haujlwm rau Kev Ua Haujlwm Ntsej Muag (Fog) Apparatus. West Conshohocken, PA: ASTM International.
2. Lub koom haum International rau Standardization. (2017). TS EN ISO 9227: 2017 Kev kuaj Corrosion nyob rau hauv cov huab cua tsim - Kev ntsuas ntsev tsuag. Geneva, Switzerland: ISO.
3. Japanese Industrial Standards Committee. (2015). JIS Z 2371: 2015 Txoj kev ntsuas ntsev tsuag. Tokyo, Nyiv: Japanese Industrial Standards Committee.
4. Tebchaws Meskas Lub Tsev Haujlwm Saib Xyuas Kev Tiv Thaiv. (2019). MIL-STD-810G: Department of Defense Test Method Standard for Environmental Engineering Considerations and Laboratory Tests. Washington, DC: US Government Publishing Office.
5. European Committee rau Standardization. (2018). TS EN ISO 9227: 2018 Kev ntsuas corrosion hauv cov huab cua tsim khoom - Kev ntsuas ntsev tsuag Brussels, Belgium: CEN-CENELEC Management Center.
6. PDVN (2020). Daim ntawv thov ntawm Kev Ntsuas Ntsev: Yuav ua li cas Kev Ntsuas Tshuaj Ntsev Tseem Ceeb hauv Kev Lag Luam Aerospace? Ntsev Txhaj Tshuaj Ntsuam Kab.
