Q1: Dab tsi cov khoom siv tso ua ke tau txhim khu kev ua kom cov raj ua haujlwm txhuas corrosion?
A1:
Tseem ceeb alloying ntsiab thiab lawv cov txheej txheem:
Chromium (0.1-0.3%): Cov ntawv passive cr₂o₃ zaj duab xis (ASTM B928)
Manganese (0.4-1.0%): Neutralizes fee impurities 'corrosive cuam tshuam
Zinc (5-7% hauv 7xxx series): Ua kom muaj kev tiv thaiv fij
Tsis tshua muaj ntiaj teb ntsiab (0.1% CE / LA): Refine Grain Callaries (Rau 13957)
Marine-Qeb Tubes (5083 alloy) sib txuas 4 {{{{}}}}}}}}}}}}}}}} 10% mn rau kev ua si dej hiav txwv. Muaj pes tsawg leeg yuav tsum yog kuaj xyuas kom meej los ntawm kev kho qhov muag emission spectroscopy.
Q2: Yuav ua li cas ua cov kev kho sab txhim kho txhuas lub raj ntev?
A2:
Peb-qeb duas Profion Profurvion Systems:
Anodizing (ntaus III): 25-50μm nyuaj lub tsho tiv no (mil--8625) nrog 1000h dej txau tiv thaiv
Ntshav hluav taws xob elecma electrolytic oxidation (PEO): Ceramic-zoo li 100μm Cov khaubncaws sabbuam-zoo li 100μm cov khaubncaws dim ntawm 2000h ANTM B117 kuaj
Cov SROMATE hloov tus txheej txheej (alodine 1200): Kev Kho Tus Kheej Hexavalent Chromium Zaj Duab Xis (tam sim no tau hloov los ntawm cov kev xaiv sib txawv ib zaug ntxiv)
Txoj kev hloov kho tsheb kub sib txuas ua ke hauv tshuab hluav taws xob hluav taws xob (RA<0.8μm) with silane pretreatment for 15-year warranties.
Q3: Lub luag haujlwm yog lub luag haujlwm ua kom sov ua si hauv kev txo xeb kev me me?
A3:
Thermal ua tswj:
T7 Kev Tshaj Tawm: Txo cov kev txhim kho corrosion los ntawm 60% piv rau T6 (Nadcap AC7114)
Kev Kho Kub Kho Kub: Homogenizes cu faib hauv 2xxx series los tiv thaiv cov galvanic hlwb
Stabilization annealing: 150 Degree / 100H kev kho mob tiv thaiv kev ntxhov siab corrosion cracking (SCC) hauv cov ntawv thov tawm tsam
Microstruction siv tau los ntawm SEM / EDs yog yuav tsum tau tom qab ua thermal ua (ISO 17475) {1}.
Q4: Yuav ua li cas thiaj ua cov kab pleev xim rau tsim los rau ib puag ncig heev?
A4:
Cov thev naus laus zis muaj xws li:
Graphene-enhanced epoxies: 0.5% chaw thau khoom txhim kho cov teeb meem barrier los ntawm 400% (nace tm0304)
Khaub thuas-txau titanium: 200μm Cov Kev Tso Nyiaj Tiv Thaiv Tiv Thaiv 800 Qib Oxidative Corrosion
Atomic Txheej Deposition (ALD): 50nm al₂o₃ Films Foob Micro-pores hauv cov tsheb kho mob
Cov no tau tsim nyog hauv API 6fa rau roj / roj cov ntawv thov yuav tsum tau30- xyoo pab lub neej.
Q5: Cov qauv kev ua qauv zoo li cas tswj hwm kev ntsuam xyuas cov kev cai?
A5:
Txoj kev lag luam-qauv siv tau:
Kev Tshuaj Ntsev Ntsev: 1000-5000h rau ASTM B117
Electrochemical impedance spectroscopy (EIS): Quatifies coating Degradation Cov Nqi
Sib Tw Sib Tham Corrosion: ASTM G67 rau 6xxx / 7xxx Series
Galvanic corrosion corrosion: SAE CUA 6206 RAU COMPETILARATORS COUNTS
Daim ntawv pov thawj yuav tsum muaj feem thib peb tog kev siv tau (dnvgg-rp -0416 rau cov ntawv thov offshore) {}
