Mixed Flow Gas (MFG) kev ntsuam xyuas yog qhov tseem ceeb rau kev tswj xyuas kom zoo thiab ntsuas qhov muaj peev xwm corrosion ntawm cov khoom siv hluav taws xob uas yuav raug rau huab cua thiab muaj peev xwm kaw tau. Peb lub koom haum muab MFG kuaj cov kev pabcuam rau aerospace, tsheb, khoom siv thiab khoom siv kho mob.
MFG test yog dab tsi
Lub hom phiaj ntawm MFG xeem yog simulate tiag corrosion los ntawm ib puag ncig raug mob. Peb lub koom haum tso cai rau koj los ntsuas qhov kev ua tau zoo ntawm koj cov khoom los ntawm kev tsim cov kev ntsuas ntsuas qhov ntsuas kub (degree), txheeb ze av noo (% RH) thiab cov pa phem ntau ntxiv, nrog rau lwm yam kev hloov pauv tseem ceeb, ua tib zoo txhais, saib xyuas thiab tswj.
Cov pa roj uas siv rau kev sim muaj xws li:
Chlorine
Hydrogen sulfide
Nitrogen dioxide
Sulfur dioxide
Cov qauv xeem:ASTM B827 thiab ASTM B845
ASTM B 827 Cov Lus Qhia Tshwj Xeeb
Qhov tseem ceeb thiab siv
4.1 Mixed flowing gas (MFG) kev ntsuam xyuas yog siv los simulate los yog nthuav tawm rau ib puag ncig tej yam kev mob uas hluav taws xob tiv tauj los yog connectors yuav tsum tau muaj nyob rau hauv ntau yam kev thov ib puag ncig (1, 2).4
4.2 Cov qauv kuaj uas tau raug kuaj MFG muaj nyob ntawm qhov chaw ntawm cov hlau liab qab, mus rau cov khoom siv hluav taws xob, thiab ua kom tiav cov rooj sib txoos.
4.3 Cov xwm txheej tshwj xeeb feem ntau yog xaiv los simulate, hauv chav kuaj sim, qhov cuam tshuam ntawm qee qhov chaw sawv cev hauv cheeb tsam lossis ib puag ncig qhov hnyav ntawm cov qauv hlau, xws li tooj liab thiab nyiaj daim coupon lossis porous kub platings (1, 2).
4.4 Vim hais tias MFG kev ntsuam xyuas yog simulations, ob qho tib si kev sim thiab cov kev cuam tshuam degradation (cov tshuaj tiv thaiv tus nqi, muaj pes tsawg leeg ntawm cov tshuaj tiv thaiv cov khoom, thiab lwm yam) tej zaum yuav tsis zoo ib yam li cov uas pom nyob rau hauv cov kev pab cuam ib puag ncig ntawm cov khoom raug kuaj nyob rau hauv lub MFG xeem. Daim ntawv qhia txog kev xaiv cov kev simulation uas haum rau ntau qhov chaw muaj nyob hauv Phau Ntawv Qhia B845.
4.5 Lub MFG raug feem ntau yog siv ua ke nrog cov txheej txheem uas ntsuas kev sib cuag lossis txuas hluav taws xob, xws li kev ntsuas hluav taws xob tiv thaiv ua ntej thiab tom qab MFG raug.
4.6 Cov kev ntsuam xyuas MFG yog qhov muaj txiaj ntsig zoo rau cov khoom sib txuas uas nws qhov chaw sib cuag yog plated lossis clad nrog kub lossis lwm yam hlau zoo kawg nkaus. Rau cov chaw zoo li no, ib puag ncig tsim tsis ua haujlwm feem ntau yog vim muaj kev tiv thaiv siab lossis kev cuam tshuam los ntawm kev tsim cov kab mob sib kis hauv cheeb tsam sib cuag. Qhov kev sib kis no, nyob rau hauv daim ntawv ntawm cov yeeb yaj kiab thiab cov khoom nyuaj, feem ntau yog tshwm sim los ntawm qhov pore corrosion thiab corrosion khoom tsiv teb tsaws los yog tarnish creepage los ntawm qhov pores nyob rau hauv cov khoom muaj nqi hlau txheej thiab los ntawm unplated puag hlau ciam teb, yog tam sim no.
4.7 MFG exposures tuaj yeem siv los ntsuas qhov tshiab hluav taws xob sib cuag metallization rau kev cuam tshuam rau kev degradation vim ib puag ncig raug rau qhov ntsuas corrosive gases.
4.8 MFG exposures tuaj yeem siv los ntsuas qhov muaj peev xwm tiv thaiv kev sib txuas ntawm cov tsev nyob, uas tuaj yeem ua qhov cuam tshuam rau kev nkag mus ntawm cov roj corrosive.
4.9 MFG exposures tuaj yeem siv los ntsuas qhov cuam tshuam ntawm lwm cov ntaub ntawv txuas xws li cov vaj tsev yas kom degradation los ntawm kev sim corrosive gases.
4.10 Cov kev ntsuam xyuas MFG feem ntau tsis siv los ua qhov kev ntsuam xyuas porosity. Yog xav paub ntxiv txog kev kuaj porosity, saib Guide B765.
4.11 Cov kev ntsuam xyuas MFG feem ntau tsis siv tau qhov twg qhov kev ua haujlwm tsis ua haujlwm yog lwm yam tsis muaj kuab paug rau corrosion, xws li hauv cov tin-coated sib cais.
ASTM B845 Cov Lus Qhia Tshwj Xeeb
Qhov tseem ceeb thiab siv
4.1 Kev khaws cia ntawm qhov chaw ua haujlwm ntawm kev sib cuag hluav taws xob yog qhov tseem ceeb rau kev ua haujlwm txuas ntxiv ntawm cov kev sib cuag. Kev kis kab mob ntawm qhov chaw nrog cov txheej txheej insulating tsim los ntawm cov txheej txheem corrosion yog ib qho kev phom sij. Kev soj ntsuam ntawm kev sib cuag hauv MFG yog siv los ntsuas qhov ua tau zoo ntawm cov qauv tsim thiab cov khoom siv.
4.2 MFG xeem yog siv rau hauv kev txhim kho kev tshawb fawb ntawm cov txheej txheem thiab cov ntaub ntawv rau kev sib cuag. Piv txwv li, daim coupon no yuav raug kuaj MFG los soj ntsuam cov ntaub ntawv tiv tauj tshiab, cov txheej txheem txheej txheej tshiab ntawm cov txheej txheem txhawb nqa, txo cov txheej tuab, lossis kev tiv thaiv saum npoo.
4.3 MFG kev ntsuam xyuas kuj tseem ua haujlwm los ntsuas qhov ua haujlwm ntev ntawm cov khoom tiav nrog rau kev xeb ntawm atmospheric corrosion. Piv txwv li, cov khoom sib txuas ua tiav tuaj yeem raug kuaj MFG thiab lawv cov kev ua tau zoo piv rau ib leeg lossis tawm tsam cov txheej txheem ruaj khov. Relays lossis hloov kev sib cuag yuav raug nthuav tawm hauv kev ua haujlwm thiab tsis ua haujlwm los sib piv kev ua haujlwm.
4.4 MFG cov kev ntsuam xyuas muaj txiaj ntsig zoo rau kev txiav txim siab qhov ua tau zoo ntawm cov vaj tsev sib txuas thiab cov ntaub thaiv npog raws li qhov cuam tshuam rau kev nkag mus ntawm atmospheric corrodants mus rau qhov chaw sib cuag. Cov kev ntsuam xyuas no tseem tuaj yeem siv los ntsuas qhov kev tshuaj ntsuam ntawm cov hlau-rau-hlau qhov chaw sib cuag ntawm cov khoom sib txuas.
4.5 MFG kev xeem yog ua hauj lwm raws li kev ntsuam xyuas tsim nyog los txiav txim siab connector tsis ua hauj lwm tus nqi nyob rau hauv daim ntawv thov ib puag ncig uas correlation ntawm kev xeem thiab daim ntawv thov yav tas los tau tsim.
4.6 Phau ntawv qhia no muab cov kev xeem uas yuav tsum tau siv ua ke nrog Kev Xyaum B827 uas txhais tau hais tias yuav tsum tau ua haujlwm xeem thiab cov txheej txheem ntawv pov thawj, kev kam rau siab, thiab kev qhia yuav tsum tau ua. Qhov twg tus ntsuas ntsuas yuav tsum tau ntawv pov thawj los yog kam rau ua txawv dua li cov uas muaj nyob rau hauv Practice B827, yuav tsum tau ntawv pov thawj los yog kam rau ua yuav tsum yog ib feem ntawm qhov kev xeem specification. Qhov sib txawv ntawm cov kev qhia tshwj xeeb hauv Kev Xyaum B827 yuav tsum tau tshaj tawm hauv daim ntawv tshaj tawm kev xeem uas muab los ntawm tus neeg teb xov tooj rau qhov ntsuas qhov ntsuas. Kev qhia tshwj xeeb ntawm ib qho ntawm cov kev xeem uas tau teev tseg hauv daim ntawv no nyob rau hauv daim ntawv qhia xws li, "Qhov yuav tsum tau kuaj raws li ASTM B845 Method Z," implicitly yuav tsum tau kuaj mob, Z, thov raws li kev xyaum B827.
MFG test chamber
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LIB can customize theMFG test chamberrau koj, uas tau mus txog tus qauv koj yuav tsum tau xa mus. Peb yog Tuam Tshoj-raws li kev nyab xeeb chamber tuam ntxhab uas tshwj xeeb hauv kev ntsuas ib puag ncig. Yog tias koj tab tom nrhiav tus nqi tsim nyog Kev ntseeg siab ua tau zoo, peb yuav yog koj qhov kev xaiv zoo tshaj plaws, thov hu rau peb (info@libtestchamber.com) kom paub ntau ntxiv txog cov cuab yeej no lossis lwm yam khoom siv kuaj ib puag ncig.
