1. Qhov tseeb dab tsi txiav txim siab rau corrosion tsis kam ntawm txhuas ntawv ci?
Aluminium Ntawv Nyiaj Chais cov xeb tsis yog nyob ntawm:
Alloy Muaj pes tsawg: 1xxx-series (99% ntshiab al) muaj kev tiv thaiv zoo tshaj vim tsawg kawg {}}
Nto Kho: Chromate Conversion lossis anodizing cov ntaub ntawv tiv thaiv oxide txheej (2-10 nm tuab).
Kev kis tau ib puag ncig ib puag ncig: Clj ions hauv ntug hiav txwv chaw nrawm pittingse; pH<4 or >9 nce kev sib cuam tshuam .
Lamination txheej: Cov txheej txheej polymer (e {{. g}}}}}}
Xov xwm: Tsis muaj kev tsis kho 1100 ntawv ci hauv dej hiav txwv corrodes ntawm 0.1 mm / xyoo, thaum Lacquered ntawv ci qhia<0.01 mm/year.
2.}}} Xaiv tau li cas tag nrho cov khoom siv.
1xxx series (e . g ., 1145): Muaj ntau yam huv si (ntau dua lossis sib npaug nrog 99.}}}} 45% AL) AL) EXACH EXPORT GARTIONS tab sis yog qhov pitting.
3xxx series (mn-ntxiv): Txhim kho cov pitting tiv thaiv acidic cov zaub mov (pH 3-6) {2.
8xxx series (fe / Si-nplua nuj): Siv rau electrolytic capacitors; {.
Chaw sib pauv-tawm: Kev sib txuam txhim kho lub zog tab sis yuav qhia tau Galvanic Corrosion (e {} g}!}}}}
3. Cov txheej txheem dab tsi ua cov ua yeeb yam ua si hauv kev txhim kho corrosion?
Epoxy Phenmic Txheej Txheem: Muab cov tshuaj lom neeg ua haujlwm (e {. g}}}}}} {.
PVDC txheej: Thaiv O₂ / H₂o PerMiceation (OTR<5 cc/m²/day).
Tej hub txheej txheem txheej (sitio): Applied via PVD for high-temperature stability (>200 degree) {.
Kev Kawm Txog: Coated ntawv ci hauv Retort Pouches withstands withstals 121 chav dej kom tsis muaj menyuam kom tsis muaj menyuam nyob rau {0.
4. Dab tsi yog cov hom corrosion ntau yam hauv cov khoom lag luam yooj ywm ci?
Pitting corrosion: Cov kev tawm tsam hauv zos hauv thaj chaw tsis muaj zog (e .}}} {}}
Crevice corrosion: Tshwm sim nyob rau hauv cov nplaum nplaum lossis cov txheej txheem qhwv ▪ .
Galvanic corrosion: Thaum ntawv ntim cov khoom sib txuas ntau ntau cov hlau nplaum (e {{{} g}}}
Me quav: ASTM B928 Mesualt ntsev tsuag tshuaj ntsuam (500+ pa ntawv rau marine-qib ntawv).
5. Yuav ua li cas kev lag luam cov qauv kev tswj hwm Corrosion tsis kam?
ASTM B479: Yuav tsum 99 {{. 0% min rau cov khoom noj tiv tauj cov khoom noj.
ISO 4531: Kev tshuaj ntsuam txheej nplaum tom qab ntub dej ntub (40 degree, 90% rh, 28 {3}
FDA 21 CFR 175.300: Cov kev txwv uas muaj cov hlau sib xyaw (<0.1 ppm Pb/Cd).
Xav tau qhov tshiab: Nano-coated ntawv ci (e {{1} g} g}!
