A ntsev tsuag chamber, tseem hu ua ntsev pos chamber los yog ntsev tsuag tshuaj ntsuam chamber, yog ib qho tseem ceeb hauv lub ntiaj teb no ntawm cov ntaub ntawv ntsuam xyuas. Cov chav no yog siv los simulate thiab ceev cov teebmeem ntawm corrosive ib puag ncig, tso cai rau cov kws tshawb fawb thiab cov chaw tsim khoom los ntsuas qhov kev tiv thaiv corrosion ntawm cov ntaub ntawv, txheej, thiab cov khoom tiav. Nyob rau hauv no blog, peb yuav delve rau hauv intricacies ntawm ntsev tsuag chambers, tshawb txog lawv lub hom phiaj, lawv ua hauj lwm li cas, thiab cov txiaj ntsig lawv muab.
Dab tsi yog Lub Hom Phiaj ntawm Cov Tshuaj Tsuag Chamber
Cov tshuaj tsuag ntsev yog tsim los ntsuas qhov kev tiv thaiv corrosion ntawm cov ntaub ntawv los ntawm kev nthuav tawm lawv mus rau qhov chaw tswj corrosive. Qhov chaw no feem ntau muaj cov huab cua zoo ntawm cov dej ntsev, uas yog txau rau hauv cov qauv kuaj. Lub hom phiaj tseem ceeb ntawm kev siv ntsev tsuag chamber muaj xws li:
Kev kuaj khoom
Ib qho ntawm cov hom phiaj tseem ceeb ntawm kev siv cov tshuaj tsuag ntsev yog los ntsuas seb cov khoom siv thiab cov txheej txheem zoo npaum li cas. Cov kev ntsuam xyuas no yog siv los ntawm cov tuam txhab lag luam los kwv yees ntev npaum li cas cov khoom lag luam yuav nyob hauv qhov chaw hnyav xws li cov dej qab ntsev lossis cov av noo siab. Cov chav no pab txheeb xyuas qhov tsis muaj peev xwm ntawm cov ntaub ntawv thaum ntxov hauv kev txhim kho lossis kev tswj xyuas zoo los ntawm kev simulating ceev corrosion.
Kev Tswj Xyuas Zoo
Kev ntsuas tshuaj ntsev yog qhov tseem ceeb rau kev tswj xyuas kev kwv yees thoob plaws ntau qhov kev lag luam, suav nrog tsheb, dav hlau, thiab thaj chaw marine. Nws muab cov ntaub ntawv tseem ceeb los lav tias cov khoom ua tau raws li cov lus qhia hnyav rau kev cuam tshuam kev yaig. Cov neeg tsim khoom tuaj yeem tshawb xyuas qhov kev cia siab thiab lub zog ntawm qhov chaw, lav tias lawv ua tau zoo hauv cov ntawv thov tiag tiag uas qhib rau cov dej ntsev lossis cov khoom puas tsuaj yog qhov qub.
Kev tshawb fawb thiab kev loj hlob
Cov kev nkag siab tau txais los ntawm kev ntsuas ntsev tsuag yog qhov tseem ceeb rau kev tsim kho tshiab hauv kev tshawb fawb ntawm cov ntaub ntawv. Thaum lub sijhawm txhim kho, engineers thiab cov kws tshawb fawb sivntsev tsuag chavlos tshawb xyuas cov txheej txheem tshiab thiab cov khoom siv. Lawv tuaj yeem soj ntsuam kev ua tau zoo nyob rau hauv cov xwm txheej tsis zoo thiab kho cov tswv yim tiv thaiv los ntawm kev coj mus kuaj rau cov chaw tswj corrosive. Qhov kev sib cuam tshuam no teeb pom kev xaiv txuas nrog kev txiav txim siab ntawm cov khoom siv thiab txhim kho lub zog dav dav thiab kev cia siab ntawm cov khoom yav tom ntej.
Lub Chav Dej Txias Dej Ua Haujlwm Li Cas?
Kev ua haujlwm ntawm cov tshuaj tsuag ntsev chamber yog qhov yooj yim, tab sis nws muab cov ntaub ntawv nthuav dav thiab txhim khu kev qha ntawm kev tiv thaiv corrosion. Ntawm no yog ib qho kev faib tawm ntawm cov chambers no ua haujlwm li cas:
Kuaj teeb
Cov qauv npaj rau kev sim yog ua tib zoo muab tso rau hauv lub chamber ntawm racks los yog tuav. Thaum cov qauv nyob rau hauv qhov chaw, lub chamber yog nruj nreem kaw kom tsim ib qho chaw nyob ib puag ncig uas tuaj yeem tswj tau meej.
Kev npaj ntsev ntsev
Cov txheej txheem sim pib nrog kev npaj cov dej ntsev, feem ntau yog tsim los ntawm sodium chloride (NaCl) tov nrog dej huv. Qhov kev daws teeb meem no yog tsim los kom ua tiav qhov concentration feem ntau nyob ib puag ncig 5%. Qhov zoo thiab concentration ntawm cov ntsev ntsev yog qhov tseem ceeb vim tias lawv cuam tshuam ncaj qha rau cov khoom corrosive ntawm cov huab cua tsim.
Fog tiam
Nyob rau hauv lub chamber, cov ntsev tov yog atomized rau hauv ib tug zoo pos huab los yog pos huab siv tshwj xeeb nozzles los yog sprayers. Qhov no pos huab yog ces uniformly faib thoob plaws hauv lub chamber, enveloping cov qauv kuaj. Cov huab cua nyob rau ntawm qhov chaw ntawm cov qauv, pib ua cov txheej txheem corrosion.
Tswj ib puag ncig
Kev tuav tus kheej ib puag ncig tsis zoo yog qhov tseem ceeb rau simulate lub ntiaj teb corrosion scenarios kom raug. Feem ntau,ntsev tsuag chavua haujlwm ntawm qhov kub thiab txias, feem ntau nyob ib ncig ntawm 35 degree (95 degree F), thiab tswj cov av noo tshwj xeeb. Cov xwm txheej no rov ua dua qhov hnyav ib puag ncig uas ua rau muaj kev txhim kho corrosion, xws li cov av noo siab thiab raug rau ntsev-laden atmospheres.
Kev soj ntsuam thiab kev ntsuam xyuas
Lub sij hawm ntawm qhov kev xeem sib txawv nyob ntawm seb cov ntaub ntawv raug soj ntsuam thiab cov qauv tshwj xeeb lossis cov kev xav tau ua raws. Kev ntsuam xyuas tuaj yeem nyob ntawm ob peb teev mus rau ob peb lub lis piam. Thoob plaws lub sijhawm sim, cov qauv raug tshuaj xyuas ib ntus thiab tshuaj xyuas cov cim qhia ntawm corrosion. Cov cim qhia muaj xws li kev tsim cov xeb, oxidation, lossis pitting ntawm cov qauv. Cov kev soj ntsuam no tau muab sau ua ntu zus los ntsuas cov khoom siv tiv thaiv corrosion nyob rau hauv cov xwm txheej simulated.
Dab tsi yog qhov txiaj ntsig ntawm kev siv ntsev tsuag Chamber?
Kev siv lub tshuab ntsev ntsev muaj ntau yam txiaj ntsig rau cov tuam txhab tsim khoom, cov kws tshawb fawb, thiab cov kws tshaj lij kev tswj hwm. Qee qhov txiaj ntsig tseem ceeb suav nrog:
Kev ntsuas nrawm
Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm kev kuaj tshuaj ntsev yog lub peev xwm los ua kom cov txheej txheem corrosion. Qhov no tso cai rau kev soj ntsuam sai ntawm cov khoom siv kev ua tau zoo nyob rau lub sijhawm txuas ntxiv hauv lub sijhawm luv luv.
Nqi-zoo
Cov tshuaj tsuag ntsevmuab tus nqi-zoo rau kev kuaj corrosion kuj piv rau kev sim mus ntev. Qhov no pab cov tuam txhab txuag lub sijhawm thiab cov peev txheej thaum tseem tau txais cov ntaub ntawv txhim khu kev qha.
Standardized Test
Kev ntsuas tshuaj ntsev yog tsim los ntawm ntau lub koom haum thoob ntiaj teb, suav nrog ASTM (American Society for Testing and Materials) thiab ISO (International Organization for Standardization). Qhov no ua kom muaj kev sib luag thiab sib piv ntawm cov txiaj ntsig thoob plaws cov kev sim sib txawv thiab kev lag luam.
Khoom Txhim Kho
Los ntawm kev nkag siab yuav ua li cas cov ntaub ntawv thiab cov coatings teb rau corrosive ib puag ncig, manufacturers tuaj yeem txiav txim siab paub txog cov khoom tsim thiab kev txhim kho. Qhov no ua rau kev txhim kho cov khoom ruaj khov thiab txhim khu kev qha.
Quality Assurance
Kev siv tshuaj tsuag ntsev ua ib feem ntawm cov txheej txheem tswj kom zoo pab xyuas kom meej tias cov khoom ua tau raws li cov qauv thiab cov kev qhia tshwj xeeb. Qhov no txo qhov kev pheej hmoo ntawm cov khoom lag luam tsis ua haujlwm thiab txhim kho cov neeg siv khoom txaus siab.
Xaus
Hauv kev xaus, antsev tsuag chamberyog ib qho cuab yeej tseem ceeb rau kev ntsuas qhov corrosion kuj ntawm cov ntaub ntawv thiab txheej. Nws lub peev xwm los simulate lub ntiaj teb corrosive ib puag ncig muaj txiaj ntsig zoo rau cov tuam txhab, cov kws tshawb fawb, thiab cov kws tshaj lij tswj hwm. Los ntawm kev nkag siab lub hom phiaj, kev ua haujlwm, thiab cov txiaj ntsig ntawm cov tshuaj tsuag tshuaj ntsev, cov tuam txhab tuaj yeem txhim kho cov khoom zoo, txhim khu kev ruaj ntseg, thiab thaum kawg xa cov khoom lag luam txhim khu kev qha.
Yog xav paub ntxiv txog Salt Spray Apparatus los yog kawm seb lawv tuaj yeem tau txais txiaj ntsig zoo li cas rau koj qhov kev xav tau, thov hu rau peb ntawminfo@libtestchamber.com.
Cov ntaub ntawv
1. ASTM B117-19, Standard Practice for Operating Salt Spray (Fog) Apparatus, ASTM International.
2. ISO 9227: 2017, Kev kuaj Corrosion nyob rau hauv cov khoom siv dag zog - Kev sim tshuaj ntsev, International Organization for Standardization.
3. H. Covino Jr., WT Cheng, thiab R. Baboian, "Corrosion Testing and Evaluation," in ASM Handbook, Volume 13B, Corrosion: Materials, ASM International, 2005, pp. 706-725.
4. AR Despic thiab AI Despic, "Cov Txheej Txheem Corrosion thiab Corrosion Testing," hauv Cov Khoom Siv Ua Ntej, Elsevier, 2014, pp. 39-73.
5. R. Winston Revie thiab HH Uhlig, "Corrosion and Corrosion Control," in Corrosion and Corrosion Control: An Introduction to Corrosion Science and Engineering, 4th ed., Wiley, 2008.
6. N. Birbilis thiab D. Triantafyllou, "Corrosion Testing Methods," nyob rau hauv Phau Ntawv Qhia Txog Ib Cheeb Tsam Ntawm Cov Khoom, 3rd ed., Elsevier, 2018, pp. 463-485.
