Dab tsi cov txheej txheem txhais tau tias "zoo tshaj plaws" marine-qib aluminium rau cov ntawv thov tshwj xeeb?
Qhov "zoo tshaj plaws" marine-qeb aluminium nyob ntawm qhov zoo li corrosion tsis kam, lub zog-rau-hnyav piv, weldability, thiab tus nqi. Alloys zoo li 5083 thiab 5059 Excel nyob rau hauv ib puag ncig dej hiav txwv vim lawv cov ntsiab lus magnesium, uas tau txhim kho corrosion tsis kam. Rau cov qauv kev ntseeg nyob rau hauv cov nra hnyav, 5059 muaj cov zog ntau dua 5083. Weldability yog qhov tseem ceeb rau cov haujlwm loj; 5083 yog qhov yooj yim rau weld nrog cov qauv kev kawm, thaum 5059 yuav tsum tau ua cov txheej txheem siab. Nqi-txiaj ntsig feem ntau ua rau 5083 nyiam dua rau cov khoom siv hluav taws xob dav dav, whereas 5059 raug xaiv rau cov khoom lag luam zoo li LNG cov khoom siv lossis cov nkoj tub rog.
Vim li cas thiaj yog 5xxx-series alloys nyiam rau cov tub rog ib puag ncig dhau lwm cov koob?
Lub 5xxx-series alloys (piv txwv li, 5083, 5059, 5086) muaj cov hlau nplaum, uas txhim kho corrosion tsis kam nyob hauv Sealwater. Lawv qhov tsis yog-cua sov-kho kom ruaj khov rau cov muaj mob hnyav, txo qis kev phom sij rau kev ua kom nruj. Cov alots no kuj tswj cov ductility thiab kev tawv me me ntawm cov kub tsis muaj roj tsawg, ua rau lawv lub tsheb loj ua kom zoo nkauj. Tsis zoo li 6xxx-series alloys, uas xav tau kev kho cua sov, 5xxx-series cov hlau yog ib txwm corrosion-resistant yam tsis muaj kev cuam tshuam weldability. Lawv cov kev sib xyaw ntawm lub zog thiab kav ntev ua rau lawv tus qauv rau marine engineering.
Yuav ua li cas 5083 Aluminium ua tau nyob rau hauv lub sijhawm ntev rau kev sib piv piv rau 5059?
5083 Aluminium yog cov muaj zog heev rau pitting thiab crevice corrosion, ua rau nws ntseeg tau rau xyoo lawm hauv Hulls thiab lawj. Txawm li cas los xij, lub caij nyoog raug rau kev ntxhov siab lossis cov nqaij hiav txwv acidic yuav ua rau maj mam degradation. 5059, nrog nws cov khoom siv ua kom zoo nkauj tag nrho cov muaj pes tsawg leeg, muaj kev cuam tshuam zoo rau kev tawg thiab kev ntxhov siab rau ib puag ncig kev tawg Thaum 5083 yog tus nqi-ua tau zoo rau kev ua lag luam marine, 5059 cov khoom tshaj lij txuas ntxiv txoj kev pabcuam lub neej, txo cov nqi txij nkawm nyob rau lub sijhawm.
Dab tsi yog cov kev txwv ntawm kev siv 5059 aluminium hauv kev tsim kho marine?
Txawm hais tias nws cov txiaj ntsig, 5059 Txhuas muaj cov khoom siv cable ntau dua, xws li kev tswj hwm cov khoom siv hlau, kom tsis txhob tawg thiab khaws lub zog. Nws muaj tsawg tsawg nyob rau hauv qee thaj chaw tuaj yeem ncua cov phiaj xwm, hos 5083 yog dav siv tau. Ib qho ntxiv, 5059 overengineering tej zaum yuav tsis tsim nyog rau cov ntawv thov kev ntxhov siab tsawg li cov nkoj me, qhov twg 5083 lossis 6061 txaus. Cov xwm txheej no ua 5059 tsawg dua rau cov peev nyiaj-meej lossis cov haujlwm xav tau tsawg dua.
Uas cov tubrog-qib-qeb aluminoy alloy yog qhov zoo tshaj plaws rau lub teeb yuag, cov nkoj ceev ceev?
5059 Aluminium yog qhov zoo tshaj plaws rau lub teeb, high-speed nkoj vim nws qhov tshwj xeeb muaj zog-rau-qhov hnyav piv. Nws tso cai rau thinner hull daim phiaj yam tsis muaj kev ntseeg siab ua ntej, txo tus ntxhiab thiab kev txhim kho roj efficiency. Lub alloy tus qaug zog tsis kam yog qhov tseem ceeb rau cov khoom siv tshuab hluav taws xob siab nthuav tawm kom rov ua dua ya. Hauv kev sib piv, 5083, thaum sib zog dua li hlau, tsis muaj tib lub zog tensile rau kev ua haujlwm heev. Naval cov kws tshawb fawb feem ntau xaiv 5059 rau kev sib tw nkoj, cov tub rog kev saib xyuas cov tub rog, thiab cov neeg ua rog uas nrawm thiab lub siab tau ua ntej tshaj UppSront tus nqi.
