Uas yog qhov zoo dua: aluminium lossis tooj -} kev paub

1. Cov cuab yeej tseem ceeb

Qhov sib txawv ntawm cov khoom hauv cov khoom uas tsav lawv cov kev haum rau cov haujlwm sib txawv:

Ntiag tug	Aluminium (AL)	Tooj Liab (Cu)	Tseem Ceeb Takaway
Hluav Taws Xob Kev Tshaj Tawm	~ 60% tooj liab (ntawm 20 degree; iAcs=61%)	Zoo heev (IAcs=100%- Tus qauv rau hluav taws xob conductive)	Tooj liab yog qhov zoo dua rau high -} kev ua tau zoo hluav taws xob kev sib kis.
Thermal conductivity	~ 50% ntawm tooj liab (237 w / math vs . 401} · k ntawm 20 degree)	Superior (siab tshaj plaws ntawm cov hlau uas muaj ntau)	Tooj liab yog qhov zoo tagnrho rau cov ntawv thov kev tshav kub (piv txwv li, lub dab dej kub).
Ceev	Tsawg (2.70 g / cm³-1/3 lub ntom tooj liab)	Siab (8.96 g / cm³)	Txhuas yog sib dua; Tseem ceeb rau qhov hnyav -}} rhiab siv (piv txwv li, aerospace).
Lub zog	Nruab nrab (annealed lub zog: ~ 90-120 mpa); high - Muaj zog Alloys (piv txwv li, 6061-T6) ncav cuag 276 mpa	Siab (annealed tensile zog: ~ 220-250 mpa); muaj zog dua li ntshiab txhuas	Tooj liab muaj zog nyob rau hauv daim ntawv ntshiab, tab sis siab - lub zog aluminium alloys nqaim qhov sib txawv.
Corrosion Kuj	Zoo heev (cov ntaub tuab, tus kheej -} kho al₂o₃ zaj duab xis); Tiv thaiv xeb thiab ntau yam tshuaj	Zoo (ua daim ntawv qhia nyias nyias cu₂o / teo zaj duab xis); Kev mus rau Tarnishing (Oxidation) thiab corrosion hauv acidic / alkaline ib puag ncig	Aluminium Outperforms tooj liab nyob rau sab nraum zoov hauv kev hnyav sab nraud lossis tshuaj lom neeg.
Mallabability / ductility	Cov mally malleable (yooj yim dov rau hauv ntawv ci) thiab ductile	Tsis tshua muaj tuab (tuaj yeem kos rau hauv cov xov hlau nyias); me ntsis tsawg dua li txhuas	Tooj liab zoo dua rau kev kos duab hlau; Aluminium rau cov khoom nyias nyias, cov khoom siv.
Tus nqi	Tsawg (feem ntau 1 / 3-1 / 4 tus nqi tooj liab ib phaus)	Siab (kim dua vim muaj txiaj ntsig tsawg thiab ntau dua cov nqi rho tawm)	Aluminium yog ntau tus nqi -}}}- volume, tsis- tseem ceeb tshaj plaws.

2. Thaum tooj liab yog "zoo dua"

Tooj liab yog qhov kev xaiv xaiv hauv cov xwm txheej uassiab conductivity (hluav taws xob lossis cua sov), lub zog, lossis ductilityyog qhov tseem ceeb:

(1) Cov Hluav Taws Xob Hluav Taws Xob & Khoom Siv Hluav Taws Xob

Tsawg - voltage xaim(Xws li, cov hluav taws xob hluav taws xob, USB txoj hlua): Tooj hluav taws xob kev ua haujlwm zoo me me (I²R poob) thiab ua kom sov, ua kom muaj kev nyab xeeb, muaj txiaj ntsig zoo. Nws tseem muaj qhov ua tau zoo dua rau kev kos duab rau hauv cov xov hlau nyias, cov xov hlau hloov tau.

High - voltage thov(Piv txwv, hluav taws xob hloov hluav taws xob, lub tshuab hluav taws xob muaj zog): Tooj hluav taws xob tsawg dua li txhuas (uas yuav tsum tau ntau dua li txhuas (uas yuav tsum loj dua cov xim tooj liab ua kom phim).

Khoom siv hluav taws xob(piv txwv li, Circuit Court board, cov txuas): Copper kev ntseeg tau thiab tsis tshua muaj kev cuam tshuam rau kev cuam tshuam rau cov teeb liab thiab overheating hauv cov khoom sib xyaw.

(2) Kev Tswj Thermal

Cua Sov Dej Sov(piv txwv li, khoos phis tawj cpus, LED teeb): Tooj liab lub teeb zoo tshaj sai sai sai dissipates kub, tiv thaiv cov khoom siv rhiab los ntawm overheating rhiab heev.

Cov Hluav Taws Xob Tshav Kub Kub(Xws li, hvac systems, tub yees) kub ceev ceev dua li txhuas, txhim kho kev ua haujlwm ntawm txias / cua sov mus.

Lub poom mov ua noj(piv txwv li, cov lauj kaub, lauj kaub): Tooj liab muaj peev xwm faib cov tshuaj huaj ntau tiv thaiv kom sov.

(3) Cov kav dej & Kev Lag Luam Kev Lag Luam

Cov kav dej dej potable: Tooj liab tsis - pa, corrosion {{1} {{1} {50+ xyoo). Nws yog dav siv nyob rau hauv cov chaw nyob thiab cov kav dej tsis sib xws (tab sis txhuas qee zaum siv rau loj {4} - tus nqi phiaj xwm).

Muaj Tubing(piv txwv li, rau cov tub yees, cov kua dej hydraulic): Tooj lub zog pub nws tiv thaiv kev mob siab, thaum nws thermal conductivity pab nyob rau hauv tub yees tshav kub.

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3. Thaum aluminium yog "zoo dua"

Aluminium ci hauv cov ntawv thov uasLub teeb yuag, corrosion kuj, lossis tus nqi qisyog ua ntej tshaj qhov siab tshaj plaws ua haujlwm:

(1) Aerospace & Automotive

Aerospace Cheebtsam(piv txwv li cov dav hlau fuselages, tis tawv nqaij, satellite qauv siv roj thiab payload hnyav {{tseem ceeb rau kev ua kom sov. Siab - muaj zog alloys (piv txwv li, 7075-t6) tau raws li kev lag luam nruj zog.

Automotive Qhov Chaw(piv txwv li, lub cev panels, cov log tsheb cav, cov log tsheb): Aluminium qhov hnyav kev txuag hluav taws xob) thiab nws cov roj tsis taus hluav taws xob txuas ntxiv tsheb liftends tsheb lifteskiv

(2) Sab Nraum & Harsh Chaw

Tsev Cladding & Vuas: Aluminium tus kheej -} kho cov yeeb yaj kiab oxide, ua rau nws muaj kuab paug, ua rau nws muaj kuab, thiab cov rooj tog zaum sab nrauv, vaj rooj tog zaum).

Cov Khoom Siv Tshuaj: Aluminium withstves acids (tsuas yog muaj zog alkalis zoo li naoh) thiab nws yog siv rau kev tso tsheb hlau luam, kav dej, thiab li qub nyob rau hauv cov tub rog lossis chaw nyob.

(3) tus nqi -} kev siv daim ntawv thov

High - voltage fais fab kab(Nyiaj Siv Ua Haujlwm Cables): Thaum tooj liab tau ntau dua, Aluminium tus nqi qis thiab lub teeb yuag offset nws qis tshaj plaws. Aluminium cables (feem ntau txhawb nrog hlau, "ACSR") yog qhov pheej yig dua rau nruab thiab xav tau cov nyiaj tsawg dua.

Hluav Taws Xob Cov Hluav Taws Xob & Cov Cua Sov Tog (Tsis - tseem ceeb): Rau tsawg -} cov khoom siv hluav taws xob (piv txwv li, txhuas tus nqi qis dua thiab cov khoom siv qis dua thiab muaj peev xwm xaiv tau rau tooj liab.

(4) ntim khoom thiab cov khoom siv cov neeg siv khoom

Cov Khoom Noj Ntim(piv txwv li, txhuas ntawv ci, dej qab zib): Aluminium malleability tso cai rau nws los ua cov txheej txheem nyias, airtight barriers uas khaws cia khoom noj tshiab. Nws tseem tsis yog- kev lom zem thiab siv dua tshiab.

Cov khoom txhua hnub(piv txwv li, lub qhov rais thav duab, tsheb kauj vab): txhuas kev ua haujlwm ntawm lub teeb, thiab tus nqi qis ua rau nws zoo tagnrho rau huab hwm coj-} tsim tawm, cov khoom ruaj.

4. Kev lag luam tseem ceeb -} tawm los xav txog

Condownity vs. qhov hnyav: Yog tias muaj kev ua haujlwm ntau dua qhov hnyav (piv txwv, xaim hauv tsev), xaiv tooj liab. Yog hais tias qhov hnyav yog qhov tseem ceeb (piv txwv li, siv dav hlau aircraft), siv txhuas (txawm tias muaj zog siv zog ntxiv).

Tus nqi vs. kev ua haujlwm: Rau cov phiaj xwm loj (piv txwv li, overhead fais fab rooj sib zog), txhuas tus nqi qis ncaj qha rau nws qhov qis dua. Txog siab -} Ua hauj lwm cov khoom siv hluav taws xob, tooj liab txoj kev ua tau zoo yog tus nqi siab dua.

Corrosion vs. lub zog: Hauv cov ntug dej hiav txwv lossis cov nroj tsuag tshuaj lom neeg, txhuas cov corposion tiv taus tooj liab. Nyob rau hauv high - cov kav dej, tooj liab lub zog yog qhov zoo dua.

Uas yog qhov zoo dua: Aluminium lossis tooj liab