Q1: Dab tsi yog aluminium txhais lub cev lub cev?
Aluminium muaj qhov ntom ntom ntawm 2.7 g / cmà (ib -}}} ntawm cov hlau), ua rau nws muaj kev tshwj xeeb. Nws cov est Oxide txheej muab corrosion tsis nyob hauv feem ntau cov chaw ib puag ncig. Cov hlau tso cov ntawv qhia txog kev ua haujlwm siab, tso cai rau cov ntawv ci tanner tshaj 0.2 hli. Thermal Conductivity nce mus txog 237, zoo tagnrho rau kev hloov hluav taws xob, thaum hluav taws xob conduction ua tiav 61% IRCS rau cov hwj huam kis tau. Aluminium tsis yog - ua rau, tsis -} sib nqus tau 100% rov qab siv dua.
Q2: Yuav ua li cas cov kev ua alloying cov txheej txheem txhim kho tshuab kev ua haujlwm?
Tooj liab (Cu) nce lub zog tab sis txo cov corrosion tsis kam. Magnesium (MG) txhim kho tensile lub zog thiab ua haujlwm-} hatening muaj peev xwm. Silicon (Si) txhim kho kev ncaj ncees thiab cov ntsiab lus qis melting. Zinc (Zn) ua ke nrog mg tsim ultra- siab {{5} {lub zog Aerospace alloys (piv txwv li, 7075). Manganese (MN) Boosts corrosion tsis kam thaum tswj cov qauv hauv alloys zoo li 3003 rau kev ntim khoom.
Q3: Vim li cas cov xim zoo tagnrho rau kev thauj mus los?
Nyhav txo kev txiav cov tsheb hluav taws xob kev siv los ntawm 8% rau 10% loj tau txais kev cawmdim. Muaj Zog Zog Kev nqus (txog 200 kj / m³) txhim kho kev nyab xeeb kev nyab xeeb. Extruded cov tswv cuab pab tau nyuaj rau kev loj hlob ntawm lub siab- ceev tsheb ciav hlau. Tubrog marine {{}} qib alloys (piv txwv li, 5083) Ua kom dhau Saltw dej corrosion rau ntau caum xyoo.
Q4: Yuav ua li cas ua rau kev nyuaj tsim (T4 / T6) cuam tshuam cov khoom?
T4 qhia txog kev daws teeb meem kub-}}}} nrhiav thiab ib txwm muaj hnub nyoog, ua kom tau zoo. T6 txhais ntawm kev daws teeb meem kub-}}}}}}}}}}}℃degree / 6h), ua kom muaj zog los ntawm 40% tiv thaiv T4. Tshaj {-}}}}}} tsis muaj kev ntxhov siab {{morrosion tsoo hauv cov kab tuab.
Q5: Dab tsi yog cov kev txwv ntawm txhuas alloys?
Qaus zog tseem muaj ≈50% qis dua cov hlau hauv qab cyclic thauj khoom. Modulus ntawm elasticity (69 GPA) yuav tsum tau cov tuab tuab rau cov tawv ntoo. Vuam tuaj yeem welding tuaj yeem ua kom cua sov tsis muaj zog {{}} cuam tshuam zones los ntawm 30- 50%. Creep resistance txo qis dua 150 degree, txwv kev siv qib siab-temp.
