Aluminium (Al) yog ib qho tshuaj lom neeg nrog tus lej atomic 13. Nws yog qhov thib peb tshaj plaws nyob rau hauv lub ntiaj teb crust, suav nrog txog 8% ntawm nws qhov hnyav. Lub ntsiab yog thawj cais nyob rau hauv 1825 los ntawm Danish physicist Hans Christian Ørsted. Vim nws siab reactivity, aluminium tsis tshua pom nyob rau hauv nws daim ntawv ntshiab; xwb, Nws feem ntau pom muaj nyob hauv cov zaub mov zoo li bauxite, los ntawm nws yog muab rho tawm.
Yam ntxwv | Paub meej |
Cim | Al |
Atomic Number | 13 |
Kev nplua nuj nyob hauv ntiaj teb Crust | 8% |
Thawj Tso Cai Los Ntawm | Hans Christian Ørsted (1825) |
Hom Ore | Bauxite |
Xyoo | Discovery | Pab txhawb nqa |
1807 | Pom muaj nyob ntawm aluminium | Humphry Davy |
1825 | cais aluminium | Hans Christian Ørsted |
Tsim txoj hauv kev rau kev tsim khoom txhuas | Henri Sainte-Claire Deville | |
Tsim txoj kev smelting (Hall-Héroult txheej txheem) | Charles Martin Hall thiab Paul Louis Toussaint Héroult |
Aluminium cov khoom ua rau nws nyiam nyob rau hauv ntau yam lag luam. Ntawm no yog ib qho piv txwv ntawm nws cov yam ntxwv tseem ceeb:
Khoom | Kev piav qhia |
Ductility | Nws tuaj yeem kos rau hauv cov xov hlau nyias |
Corrosion Resistance | Ua ib txheej tiv thaiv oxide |
Malleability | Yuav hammered rau hauv daim ntawv nyias |
Thermal conductivity | Zoo conductor ntawm tshav kub |
Hluav taws xob conductivity | Zoo conductor ntawm hluav taws xob |
Qhov ntom | 2.71 g/cm³, txog ib feem peb ntawm cov hlau |
Reflectivity | Siab, pab tau nyob rau hauv daim iav thiab reflective xim |
Aluminium tuaj nyob rau hauv ntau hom, txhua tus nrog rau kev siv tshwj xeeb:
Hom | Kev piav qhia | Siv dav |
Ntshiab Aluminium | Purest daim ntawv, mos, ductile, conductive, corrosion-resistant | Hlau, kab, ntawv ci |
Aluminium Alloys | Sib tov ntawm aluminium nrog lwm cov ntsiab lus ntxiv zog thiab hardness | Lub cav, dav hlau tis, cov khoom siv |
Cast Aluminium | Alloys nchuav rau hauv pwm los tsim qhov chaw, nqi-zoo tab sis tsawg dua ductile | Cov khoom tsim tawm ntau |
Wrought Aluminium | Txheej txheem los ntawm dov, forging, los yog extrusion, muaj zog thiab haum rau ntau yam kev siv | Tsheb qhov chaw, aerospace Cheebtsam |
Anodized Aluminium | Electrochemically kho rau xim thiab nce hardness | Architectural khoom, cov khoom siv hauv tsev |
Clad Aluminium | Txhim kho corrosion kuj nrog ntxiv txheej ntawm aluminium los yog alloy | Automotive, txoj kev tsheb ciav hlau, kev siv aerospace |
Aluminium's versatility yog tshwm sim nyob rau hauv nws ntau yam kev siv:
Kev lag luam | Daim ntawv thov |
Aerospace | Cov khoom siv dav hlau, tis, lub cev |
Automotive | Lub cav, lub cev tsheb, lub log |
Tubrog nkoj | Hulls, masts, thiab lwm yam khoom siv hauv nkoj |
Ntim | Cov kaus poom dej haus, ntawv ci |
Kev tsim kho | Kev tsim vaj tsev, qhov rais, qhov rooj, sab, kab hluav taws xob |
Cov Khoom Siv Hluav Taws Xob | Cov kab hluav taws xob, TV kav hlau txais xov, satellite tais diav |
Cov khoom siv | Cookware, cov xov tooj smartphone, laptops, TVs |
Khoom siv kho mob | Lub rooj zaum, cov cuab yeej phais, cov neeg taug kev, ntoo ntoo |
Ua haujlwm nrog txhuas muaj nws qhov zoo thiab qhov tsis zoo:
Qhov zoo | Qhov tsis zoo |
Lub teeb | Tsis muaj zog li steel |
Corrosion-resistant | Tus nqi siab dua li qee cov yas |
High thermal thiab hluav taws xob conductivity | Vuam tuaj yeem nyuaj vim muaj thermal conductivity uas ua rau kom muaj zog ntawm welds sai |
100% recyclable | Qee cov qib high-qib alloys tuaj yeem kim |
Lub ntiaj teb no thov rau txhuas yog tsav los ntawm nws lub teeb yuag thiab muaj zog zog, ua rau nws zoo tagnrho rau ntau yam kev siv. Kev lag luam tsis tu ncua, nrog kev nrhav tshiab hauv txoj kev tsim khoom thiab kev siv thev naus laus zis.
Aluminium ntau lawm suav nrog mining bauxite, refining nws rau alumina, thiab tom qab ntawd smelting nws los tsim cov aluminium ntshiab. Cov txheej txheem Hall-Héroult yog txoj kev tseem ceeb siv niaj hnub no.
Aluminium yog 100% recyclable, thiab recycling txuag mus txog 95% ntawm lub zog xav tau los tsim cov txhuas tshiab los ntawm cov khoom siv raw. Qhov no ua rau kev rov ua dua tshiab yog ib feem tseem ceeb ntawm kev lag luam.
Raws li kev lag luam nrhiav cov khoom sib dua thiab ruaj khov dua, aluminium qhov kev thov yuav tsum loj hlob. Kev tsim kho tshiab hauv kev tsim kho alloy thiab kev ua cov txheej txheem yuav nthuav dav nws cov ntawv thov.
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