Hauv kev tsim khoom lag luam thiab kev tsim khoom lag luam, txhuas lub teeb hnyav, corrosion tsis kam, thiab kev coj ua ua rau nws staple khoom. Txawm li cas los xij, vuam sib tw sib tw txawv txawv? Qhov no yog qhov twg alloy hlau rau vuam txhuas tawm raws li ib tug tseem ceeb tivthaiv, engineered los daws cov kev cov nyom no thiab xa cov ntawv thov txhim khu kev sib txuam.
Alloy cov kav hlau rau txhuas vuam yog tsim los ntawm kev ua kom zoo nkauj wardity los ua kom zoo rau wardability, tshuab lub zog, thiab kev tiv thaiv kom tawg. Qhov kev xaiv ntawm cov khoom siv alloy nyob ntawm cov khoom siv hauv paus (piv txwv li, 1xxx, 3xxx, lossis 6xxx series) thiab kev npaj siv ntawm cov qauv welded.
Magnesium (MG): tus key additive nyob rau hauv 5xxx- Cov hlau ua kom muaj zog thiab corrosion ua rau lub zog ua si, thiab cov ntaub ntawv hluav taws xob uas muaj qhov tsis muaj zog nyob hauv ib puag ncig hnyav yog qhov tseem ceeb.
Silicon (Si): pom nyob rau hauv 4xxx- cov xov tooj kub, txhim kho kev pheej hmoo ntawm weld pas dej siv hauv cov ntaub pua tsev lossis hluav taws xob.
Tooj liab (CU): ntxiv rau 2xxx- Cov xov hlau, tshuab tooj liab} Kev sib xyaw ua ke zoo li cov dav hlau, tab sis nws tuaj yeem txo cov tshuab hluav taws xob tsis kam.
Zinc (ZN) thiab chromium (CR): Cov ntsiab lus ua kom nruj thiab cov hlau ua kom huv, siv hauv cov tshuab hnyav lossis siab}} kev ua haujlwm.
Kev Ua Tau Zoo Yuav Tsum Tau
Txhawm rau tsim nyog raws li kev ntseeg siab aluminium vuam hlau, cov Alloy yuav tsum ntsib txoj hlua nruj:
Oxide txheej Penetration: Aluminium ib txwm ua ib tawv txhuas oxide (al₂o₃) txheej thaum 2,07 degree- deb dua li aluminium melting point (660 degree). Zoo Alloy cov xov hlau yog tsim los txhawm rau txhawm rau txhawm rau txheej txheej ntawm cov txheej txheem vuam, kom meej fusion ntawm cov hlau hauv paus thiab muab tub lim.
Tawg kuj: txhuas lub siab thermal expansion thiab mertaction thaum vuam yuav ua rau muaj kev ntxhov siab -}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} tsis txhob tawg. Alloy cov kav hlau nrog tswj cov lus silicon lossis cov ntsiab lus magnesium mutipate qhov no los ntawm kev kho Weld hlau kev du ncauj, tiv thaiv brittleness.
Kev sib xws hauv kev noj mov: Vuam cov xov hlau yuav tsum pub ua kom dhau los ntawm cov teeb kom tsis txhob muaj kev sib tw lossis tsis muaj kev tso nyiaj. Cov tuam txhab tsim cov hlau no nrog cov hluav taws xob doc treatances (feem ntau 0.8mm) thiab huv si ntawm 3.2mm) thiab huv si ntawm cov chaw kom tsawg, ua kom muaj kev sib txhuam tsis huv.
Hom thiab Kev Siv
Qhov dav dav siv dav siv Vuam xov hlau tau catalorized los ntawm lawv aluminium series, txhua tus txiav rau cov xwm txheej tshwj xeeb:
4043 (Al - Si): Ib qho khoom siv Workorser, 4043 yog sib xws nrog 6xxx {4 4}, cov txheej txheem tsheb, tsheb lub cev panels). Nws cov ntsiab lus silicon ua kom muaj fluently zoo, ua rau nws haum ob qho mig (cov roj av roj av (tungsten inert roj) vuam.
5356 (Al -}} Kuv) - {muaj tso tsheb hlau luam, roj carrosion, roj carbon monoxide, roj carbon monoxide,
4047 (Al - si, siab silicon): nrog cov xaim hluav taws xob siab dua 4043, cov xaim hluav taws xob ntau dua 40 4}} kub fusion thiab tsawg heev distortion yog qhov tseem ceeb.
Kev Lag Luam Hauv Kev Lag Luam: Kev tsim kho hauv kev ruaj khov thiab qhov tseeb
Raws li kev lag luam thawb rau cov kev coj ua ntsuab, cov tuam ntxhab tsawg- fume alloy kev nyab xeeb thiab ua raws li cov kev cai ib puag ncig. Tsis tas li ntawd, nce qib hauv cov xov hlau txuas tam sim no tsim cov kav hlau nrog kev ua kom lub taub hau thev naus laus zis, kom ua kom cov khoom siv tsis ruaj khov thiab txo cov khoom siv pov tseg.
Hauv Aerospace thiab hluav taws xob tsheb (EV) raug -}}}}}}} immourities li hlau lossis tooj liab) yog rov qab. Cov hlau no xa Welds nrog cov khoom siv neeg siv cov khoom siv tau, tseem ceeb rau cov khoom siv xws li cov roj teeb ntawm lub tsheb roj teeb.
Tag
Alloy Hlau rau vuam txhuas yog ntau dua li ib qho kev daws teeb meem - nws yog ib qho kev sib txawv ntawm cov khoom sib txawv thiab cov kev xav tau ntawm kev tsim khoom niaj hnub. Los ntawm xaiv txoj cai Alloy muaj pes tsawg leeg muaj pes tsawg leeg, kev lag luam tuaj yeem ua tiav Welds uas muaj zog, corrosion {{{tiv taus, thiab txiav rau lawv cov kev xav tau tshwj xeeb. Raws li thev naus laus zis hloov zuj zus, cov kav hlau no yuav txuas ntxiv mus ua lub luag haujlwm tseem ceeb hauv kev tsim kho kev ua haujlwm tsis tu ncua, Aerospace, txuas ntxiv dua.
Rau cov tuam ntxhab thiab cov ntaub qhwv ntsej muag, nkag siab txog cov xov hlau alloy yog thawj kauj ruam tag nrho cov peev txheej hauv kev tsim tawm tom ntej no.
