Lub hom phiaj tseem ceeb ntawm kev ntsuam xyuas kev tiv thaiv dej ntsev thiab dej khib nyiab rau kev txau dejSML YEEB YAJ KUBCov txheej txheem hauv EN877 yog los ntsuam xyuas qhov txheej txheem tiv taus mus sij hawm ntev rau kev xeb tshuaj lom neeg (acids, alkalis, ntsev), electrochemical corrosion, thiab microbial corrosion los ntawm kev ua piv txwv qhov chaw xeb hnyav, lub ntiaj teb tiag tiag (salinity siab thiab cov dej khib nyiab tshuaj lom neeg / biological nyuaj).Qhov kev sim no xyuas kom meej tias cov txheej txheem muaj peev xwm tiv thaiv cov hlau cam khwb cia kom tsis txhob xeb thoob plaws hauv lub neej tsim ntawm cov kav dej. Qhov no ua kom ntseeg tau tias cov txheej txheem tseem ruaj khov thiab lo rau tom qab kev pabcuam ntev.
Nws ntsuas qhov tsis ncaj qha ntawm lub peev xwm ntawm cov txheej txheem los tswj qhov du ntawm phab ntsa sab hauv ntawm cov yeeb nkab thiab xyuas kom meej tias cov dej ntws zoo. Qhov kev sim no ua lub hauv paus tseem ceeb rau kev tswj hwm cov khoom zoo thiab tau txais daim ntawv pov thawj tus qauv.
Kev tsis kam rau ntsev tsuag
Cov kev ntsuam xyuas yuav tsum tau ua raws li EN IS0 9227 thiab tom qab lub sijhawm xeem tsawg kawg 350 teev cov qauv yuav tsum tau yaug nrog dej demineralized kom tshem tawm cov ntsev seem. Cov txheej txheem yuav tsum tau kuaj xyuas tam sim ntawd rau blistering thiab xeb.
Txheej Txheem Xeem:Kev sim tshuaj tsuag ntsev siv cov tshuaj tsuag ntsev tsis muaj zog ntawm5% NaCl kua rau 350 teevTom qab lub sijhawm sim tiav lawm, yaug nrog dej tsis muaj ntsev kom tshem tawm cov ntsev seem, thiab tam sim ntawdtshuaj xyuas cov txheej sab hauv kom paub seb puas muaj xeb thiab qhov. Lub theem pinhole tsis tshaj Class 3, raws li tau teev tseg hauv ISO 4628-2, thiab qib xeb tsis tshaj Class 2, raws li tau teev tseg hauv ISO 4628-3.
Qib qhov xuab zeb: Qib 3 lossis siab dua raws li tau teev tseg hauv ISO4628-2; Qib xeb: Chav kawm 2 lossis siab dua raws li tau teev tseg hauv ISO4628-3
Kev tiv thaiv dej khib nyiab
Cov qauv yuav tsum tau muab tso rau hauv dej rau30d hauv dej khib nyiab ntawm qhov kub ntawm (23 + 3) ° Cnrog rau cov khoom sib xyaw ua ke hauv Rooj 8.
Txheej Txheem Xeem:Thaum kawg ntawm lub sijhawm raus dej, cov qauv yuav tsum tau ntxuav nrog dej demineralized thiab ziab. Lawv yuav tsum tau kuaj xyuas tam sim ntawd seb puas muaj blistering lossis puas tsuaj. Tom qab24 teev ntawm qhov kub thiab txias ntawm (23 ± 3) ° Ccov qauv yuav tsum tau kuaj dua.
Yuav tsis muaj kev poob ntawm kev nplaum thiab tsis muaj xeb.
Lub sijhawm tshaj tawm: Lub Xya Hli-30-2025
